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CN1953776B - Disposable safety syringe - Google Patents

Disposable safety syringe Download PDF

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Publication number
CN1953776B
CN1953776B CN2004800429774A CN200480042977A CN1953776B CN 1953776 B CN1953776 B CN 1953776B CN 2004800429774 A CN2004800429774 A CN 2004800429774A CN 200480042977 A CN200480042977 A CN 200480042977A CN 1953776 B CN1953776 B CN 1953776B
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CN
China
Prior art keywords
injection needle
protective cover
slide rail
outer edge
needle
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN2004800429774A
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Chinese (zh)
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CN1953776A (en
Inventor
杨章民
周纯美
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Individual
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Individual
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Publication of CN1953776B publication Critical patent/CN1953776B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3271—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
    • A61M5/3272—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position having projections following labyrinth paths
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3257—Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention relates to a disposable safety syringe, mainly include a syringe needle, a protective cover and a syringe barrel to form, the syringe needle is connected with syringe barrel by a plug-in connection part, and the outer fringe of the plug-in connection part has a slide block, the slide block is formed by a base, a lead and move the pole and a upper stop part, and the outer fringe of the protective cover has a slide rail, and there are salient points near front end and rear end in one side or both sides of the slide rail, and the slide rail has one or more non-return dog behind the salient point near the rear end; the protective sleeve is sleeved on the outer edge of the syringe needle, wherein the syringe needle is arranged in the sliding rail of the protective sleeve in a penetrating way by the guide rod, and is abutted against the inner wall surface of the protective sleeve by the base, and the upper blocking part is abutted against the outer wall surface of the protective sleeve.

Description

一次用安全注射器 single use safety syringe

技术领域technical field

本发明涉及一种一次用安全注射器，特别是指一种安全、易于操作且无须担心被人用来二次使用的一次用安全注射器。The invention relates to a disposable safety syringe, in particular to a disposable safety syringe which is safe, easy to operate and does not need to be used for secondary use by people.

现有技术current technology

一般习用的注射器是由一针头及一针盖组成，其中针头在一本体的侧边延伸出若干贴片，且本体的前端插设有一注射针，而针盖则为一圆柱状，且针盖的底部开设有一容置孔。此种习用的注射器的注射针保护方法及其结构使用时，须先将针盖由针头取下，然后以针头的注射针插入患者的注射部内。此种习用的注射器在使用完毕后，必须将针盖套回针头上，容易造成医护人员被刺伤而造成感染。A commonly used syringe is composed of a needle and a needle cover, wherein the needle extends a number of patches on the side of a body, and an injection needle is inserted into the front end of the body, while the needle cover is a cylinder, and the needle cover There is a receiving hole at the bottom. When the injection needle protection method and structure of this kind of conventional syringe are used, the needle cover must be removed from the needle head, and then the injection needle of the needle head is inserted into the injection part of the patient. After the conventional syringe is used, the needle cover must be put back on the needle head, which may easily cause medical staff to be stabbed and cause infection.

由此可见，上述习用注射器仍存在诸多缺点，并非是一完善的设计，有待改进。This shows that there are still many shortcomings in the above-mentioned conventional syringe, which is not a perfect design and needs to be improved.

发明内容Contents of the invention

针对上述问题，本发明的主要目的在于提供一种易于操作且安全的一次用安全注射器。In view of the above problems, the main purpose of the present invention is to provide an easy-to-operate and safe disposable safety syringe.

本发明的次要目的在于提供一种无须担心被人用来二次使用的一次用安全注射器。A secondary object of the present invention is to provide a disposable safety syringe that does not need to be used by people for secondary use.

为实现上述目的，本发明所提供的一次用安全注射器，其包括一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；In order to achieve the above object, the disposable safety syringe provided by the present invention includes an injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part , the slider is composed of a base, a guide rod and an upper stop;

一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with bumps near the front end and the rear end, and the bumps near the rear end of the slide rail are There is one or more non-return stops at the rear of the

一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle;

所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover.

由于采用了以上技术方案，使本发明具有易于操作、安全性好且无须担心被人用来二次使用的优点。Due to the adoption of the above technical solutions, the present invention has the advantages of easy operation, good safety and no need to worry about being used for secondary use.

附图说明Description of drawings

图1本发明一次用安全注射器的顶面立体分解视图；Figure 1 is a three-dimensional exploded view of the top surface of the disposable safety syringe of the present invention;

图2本发明一次用安全注射器第一实施例的立体分解图；Fig. 2 is a three-dimensional exploded view of the first embodiment of the disposable safety syringe of the present invention;

图3本发明一次用安全注射器第二实施例的立体分解图；Fig. 3 is a three-dimensional exploded view of the second embodiment of the disposable safety syringe of the present invention;

图4本发明一次用安全注射器第三实施例的立体分解图；Fig. 4 is a three-dimensional exploded view of the third embodiment of the disposable safety syringe of the present invention;

图5本发明一次用安全注射器第四实施例的立体外观图；Fig. 5 is a three-dimensional appearance view of the fourth embodiment of the disposable safety syringe of the present invention;

图6本发明一次用安全注射器第五实施例的立体分解图；Fig. 6 is a three-dimensional exploded view of the fifth embodiment of the disposable safety syringe of the present invention;

图7本发明一次用安全注射器第六实施例的立体分解图；Fig. 7 is a three-dimensional exploded view of the sixth embodiment of the disposable safety syringe of the present invention;

图8本发明一次用安全注射器第七实施例的立体外观图；Fig. 8 is a perspective view of the seventh embodiment of the disposable safety syringe of the present invention;

图9本发明一次用安全注射器第八实施例的立体外观图；Fig. 9 is a three-dimensional appearance view of the eighth embodiment of the disposable safety syringe of the present invention;

图10本发明一次用安全注射器第九实施例的立体分解图；Fig. 10 is an exploded perspective view of the ninth embodiment of the disposable safety syringe of the present invention;

图11本发明一次用安全注射器第十实施例的立体分解图；Fig. 11 is a three-dimensional exploded view of the tenth embodiment of the disposable safety syringe of the present invention;

图12本发明一次用安全注射器第十一实施例的立体分解图；Fig. 12 is a three-dimensional exploded view of the eleventh embodiment of the disposable safety syringe of the present invention;

图13本发明一次用安全注射器第十二实施例的立体分解图；Fig. 13 is a three-dimensional exploded view of the twelfth embodiment of the disposable safety syringe of the present invention;

图14本发明一次用安全注射器第十三实施例的立体分解图；Fig. 14 is a three-dimensional exploded view of the thirteenth embodiment of the disposable safety syringe of the present invention;

图15本发明一次用安全注射器第十四实施例的立体分解图；Fig. 15 is a three-dimensional exploded view of the fourteenth embodiment of the disposable safety syringe of the present invention;

图16本发明一次用安全注射器第十五实施例的立体分解图；Fig. 16 is a three-dimensional exploded view of the fifteenth embodiment of the disposable safety syringe of the present invention;

图17本发明一次用安全注射器第十六实施例的立体分解图；Fig. 17 is a three-dimensional exploded view of the sixteenth embodiment of the disposable safety syringe of the present invention;

图18本发明一次用安全注射器第十七实施例的立体剖视图；Fig. 18 is a three-dimensional sectional view of the seventeenth embodiment of the disposable safety syringe of the present invention;

图19本发明一次用安全注射器第十八实施例的立体分解图；Fig. 19 is a three-dimensional exploded view of the eighteenth embodiment of the disposable safety syringe of the present invention;

图20本发明一次用安全注射器第十九实施例的立体分解图；Fig. 20 is an exploded perspective view of the nineteenth embodiment of the disposable safety syringe of the present invention;

图21本发明一次用安全注射器第二十实施例的立体分解图；Fig. 21 is a three-dimensional exploded view of the twentieth embodiment of the disposable safety syringe of the present invention;

图22本发明一次用安全注射器第二十一实施例的立体分解图；Fig. 22 is a three-dimensional exploded view of the twenty-first embodiment of the disposable safety syringe of the present invention;

图23本发明一次用安全注射器第二十二实施例的立体分解图；Fig. 23 is a three-dimensional exploded view of the twenty-second embodiment of the disposable safety syringe of the present invention;

图24本发明一次用安全注射器第二十三实施例的立体分解图；Fig. 24 is a three-dimensional exploded view of the twenty-third embodiment of the disposable safety syringe of the present invention;

图25本发明一次用安全注射器第二十四实施例的立体分解图；Fig. 25 is a three-dimensional exploded view of the twenty-fourth embodiment of the disposable safety syringe of the present invention;

图26本发明一次用安全注射器第二十五实施例的立体分解图；Fig. 26 is a three-dimensional exploded view of the twenty-fifth embodiment of the disposable safety syringe of the present invention;

图27本发明一次用安全注射器第二十六实施例的立体分解图；Fig. 27 is a three-dimensional exploded view of the twenty-sixth embodiment of the disposable safety syringe of the present invention;

图28本发明一次用安全注射器第二十七实施例的立体外观图；Fig. 28 is a three-dimensional appearance view of the twenty-seventh embodiment of the disposable safety syringe of the present invention;

图29本发明一次用安全注射器第二十八实施例的立体分解图；Fig. 29 is a three-dimensional exploded view of the twenty-eighth embodiment of the disposable safety syringe of the present invention;

图30本发明一次用安全注射器第二十九实施例的立体分解图；Fig. 30 is a three-dimensional exploded view of the twenty-ninth embodiment of the disposable safety syringe of the present invention;

图31本发明一次用安全注射器第三十实施例的立体外观图；Fig. 31 is a three-dimensional appearance view of the thirtieth embodiment of the disposable safety syringe of the present invention;

图32本发明一次用安全注射器第三十一实施例的立体外观图；Fig. 32 is a three-dimensional appearance view of the thirty-first embodiment of the disposable safety syringe of the present invention;

图33本发明一次用安全注射器第三十二实施例的立体分解图；Fig. 33 is a three-dimensional exploded view of the thirty-second embodiment of the disposable safety syringe of the present invention;

图34本发明一次用安全注射器第三十三实施例的立体分解图；Fig. 34 is a three-dimensional exploded view of the thirty-third embodiment of the disposable safety syringe of the present invention;

图35本发明一次用安全注射器第三十四实施例的立体分解图；Fig. 35 is a three-dimensional exploded view of the thirty-fourth embodiment of the disposable safety syringe of the present invention;

图36本发明一次用安全注射器第三十五实施例的立体分解图；Fig. 36 is a three-dimensional exploded view of the thirty-fifth embodiment of the disposable safety syringe of the present invention;

图37本发明一次用安全注射器第三十六实施例的立体分解图；Fig. 37 is a three-dimensional exploded view of the thirty-sixth embodiment of the disposable safety syringe of the present invention;

图38本发明一次用安全注射器第三十七实施例的立体分解图；Fig. 38 is a three-dimensional exploded view of the thirty-seventh embodiment of the disposable safety syringe of the present invention;

图39本发明一次用安全注射器第三十八实施例的立体分解图；Fig. 39 is a three-dimensional exploded view of the thirty-eighth embodiment of the disposable safety syringe of the present invention;

图40本发明一次用安全注射器第三十九实施例的立体分解图；Fig. 40 is a three-dimensional exploded view of the thirty-ninth embodiment of the disposable safety syringe of the present invention;

图41本发明一次用安全注射器第四十实施例的立体分解图；Fig. 41 is a three-dimensional exploded view of the fortieth embodiment of the disposable safety syringe of the present invention;

图42本发明一次用安全注射器第四十一实施例的立体分解图；Fig. 42 is a three-dimensional exploded view of the forty-first embodiment of the disposable safety syringe of the present invention;

图43本发明一次用安全注射器第四十二实施例的立体分解图；Fig. 43 is a three-dimensional exploded view of the forty-second embodiment of the disposable safety syringe of the present invention;

图44本发明一次用安全注射器第四十三实施例的立体分解图；Fig. 44 is a three-dimensional exploded view of the forty-third embodiment of the disposable safety syringe of the present invention;

图45本发明一次用安全注射器第四十四实施例的立体分解图。Fig. 45 is an exploded perspective view of the forty-fourth embodiment of the disposable safety syringe of the present invention.

本发明最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION

请参阅以下有关本发明一较佳实施例的详细说明及其附图，将可进一步了解本发明的技术内容及其目的功效。Please refer to the following detailed description of a preferred embodiment of the present invention and the accompanying drawings, so as to further understand the technical content and the purpose and effect of the present invention.

如图1所示，为本发明所提供的一次用安全注射器，其主要包括有：As shown in Figure 1, for the disposable safety syringe provided by the present invention, it mainly includes:

一注射针头1，注射针头1是在一插接部11前端插设有一注射针12，且插接部11外缘设有一滑块13，滑块13由一底座131、一导移杆132及一上挡部133所构成。An injection needle 1. The injection needle 1 is inserted with an injection needle 12 at the front end of an insertion part 11, and a slider 13 is provided on the outer edge of the insertion part 11. The slider 13 consists of a base 131, a guide rod 132 and An upper stop portion 133 is formed.

一保护套2，保护套2外缘开设有一滑轨21，在滑轨21的一侧或两侧接近前端及后端处均设有凸点211，且滑轨21在接近后端的凸点211的后方设有一个或一个以上的止回挡块212。A protective cover 2, the outer edge of the protective cover 2 is provided with a slide rail 21, on one or both sides of the slide rail 21 near the front end and the rear end are provided with bumps 211, and the slide rail 21 is near the rear end of the bump 211 One or more non-return blocks 212 are provided at the rear.

一注射筒3，其前端可供注射针头1插接。A syringe 3, the front end of which can be inserted into the injection needle 1.

注射针头1以插接部11套接于注射筒3的前端，保护套2套设于注射针头1的外缘，其中注射针头1以导移杆132穿设于保护套2的滑轨21中，并以底座131抵顶于保护套2的内侧壁面，以上挡部133抵顶于保护套2的外侧壁面。本发明所提供的一次用安全注射器使用前，滑块13的上挡部133固定于保护套2上的滑轨21接近后端的凸点211及止回挡块212之间。当要使用本发明所提供的一次用安全注射器时，仅需将保护套2向后拉，使上挡部133脱离滑轨21接近后端的凸点211，并通过滑轨21接近前端的凸点211，使注射针12从保护套2的前端露出，且滑块13的上挡部133后端壁面受滑轨21接近前端的凸点211挡制而无法退后，此时即可将注射针12插入患者注射部，进行抽取药液或注射的工作。当抽取或注射完毕后，仅需将保护套2向前推，即可使上挡部133通过滑轨21接近前端所设的凸点211，将注射针12包覆于保护套2内，而后继续将保护套2向前推，使滑块13的上挡部133通过滑轨21后端所设的止回挡块212，并由止回挡块212挡制于上挡部133的前端壁面，使保护套2无法再向后退，使本发明所提供的一次用安全注射器达到避免被二次利用的目的。另外，保护套2外缘所设的凸点211及止回挡块212也可设于滑轨21的内侧壁面，用以挡制滑块13的导移杆132。保护套2外缘所设的凸点211及止回挡块212也可设于保护套2的内侧壁面，用以挡制滑块13的底座131。The injection needle 1 is sleeved on the front end of the injection barrel 3 with the socket 11, and the protective sleeve 2 is sleeved on the outer edge of the injection needle 1, wherein the injection needle 1 is passed through the slide rail 21 of the protective sleeve 2 with the guide rod 132 , and the base 131 abuts against the inner wall surface of the protective cover 2 , and the upper stopper 133 abuts against the outer wall surface of the protective cover 2 . Before the disposable safety syringe provided by the present invention is used, the upper stop portion 133 of the slider 13 is fixed between the bump 211 near the rear end of the slide rail 21 on the protective cover 2 and the non-return stopper 212 . When the disposable safety syringe provided by the present invention is to be used, it is only necessary to pull the protective cover 2 backward so that the upper stopper 133 is separated from the slide rail 21 and approaches the bump 211 at the rear end, and passes through the slide rail 21 to approach the bump at the front end. 211, the injection needle 12 is exposed from the front end of the protective cover 2, and the rear end wall surface of the upper stop portion 133 of the slider 13 is blocked by the bump 211 close to the front end of the slide rail 21 and cannot be moved back. 12 Insert the patient's injection part, and carry out the work of extracting medicinal liquid or injection. After the extraction or injection is completed, it is only necessary to push the protective sheath 2 forward, so that the upper stopper 133 can approach the raised point 211 provided on the front end through the slide rail 21, and the injection needle 12 will be covered in the protective sheath 2, and then Continue to push the protective cover 2 forward, so that the upper stopper 133 of the slider 13 passes through the non-return stopper 212 provided at the rear end of the slide rail 21, and the front end wall of the upper stopper 133 is blocked by the non-return stopper 212 , so that the protective sheath 2 can no longer retreat, so that the disposable safety syringe provided by the present invention can avoid secondary use. In addition, the protrusions 211 and non-return stoppers 212 provided on the outer edge of the protective cover 2 can also be provided on the inner wall surface of the slide rail 21 to stop the guide rod 132 of the slide block 13 . The protrusions 211 and non-return stoppers 212 provided on the outer edge of the protective cover 2 can also be provided on the inner wall of the protective cover 2 to block the base 131 of the slider 13 .

如图2所示，本发明所提供的一次用安全注射器，其保护套2外缘也可不设凸点211及止回挡块212，而是在滑轨21的末端向下凹设一开口213，且滑轨21与开口213的相接处凸设有一个或一个以上的凸点211，而注射针头1的上挡部133末端底部则设有一可容置于开口213内的凸块134。本发明所提供的一次用安全注射器在使用前，上挡部133的凸块134底部抵顶于保护套2的外缘，且凸块134后侧壁面顶制于凸点211的前端。当要使用本发明所提供的一次用安全注射器时，仅需按压上挡部133的前端，而导移杆132作为杠杆使上挡部133后端底部的凸块134向上拉，此时即可将保护套2向后拉而使注射针12由保护套2前端露出，进行抽取或注射的动作，而当抽取或注射的动作完成后，则再次按压上挡部133的前端，导移杆132作为杠杆而使上挡部133后端底部的凸块134向上拉，并将保护套2向前推，使上挡部133的凸块134通过凸点211并容置于保护套2后端的开口213内。此时，即使再次按压上挡部133的前端，也无法使凸块134由开口213内脱出，达到避免被人二次使用的目的。As shown in Figure 2, in the disposable safety syringe provided by the present invention, the outer edge of the protective sheath 2 may not be provided with a convex point 211 and a non-return stopper 212, but an opening 213 is recessed downward at the end of the slide rail 21. , and the junction of the slide rail 21 and the opening 213 is provided with one or more protrusions 211 , and the bottom of the end of the upper stop portion 133 of the injection needle 1 is provided with a protrusion 134 that can be accommodated in the opening 213 . Before the disposable safety syringe provided by the present invention is used, the bottom of the bump 134 of the upper stopper 133 abuts against the outer edge of the protective cover 2 , and the rear side wall of the bump 134 pushes against the front end of the bump 211 . When using the disposable safety syringe provided by the present invention, you only need to press the front end of the upper stopper 133, and the guide rod 132 acts as a lever to pull the projection 134 at the bottom of the rear end of the upper stopper 133 upwards. The protective cover 2 is pulled back so that the injection needle 12 is exposed from the front end of the protective cover 2, and the extraction or injection is performed. After the extraction or injection is completed, the front end of the upper stopper 133 is pressed again, and the guide bar 132 As a lever, the projection 134 at the bottom of the rear end of the upper stop 133 is pulled upwards, and the protective cover 2 is pushed forward, so that the projection 134 of the upper stop 133 passes through the convex point 211 and is accommodated in the opening at the rear end of the protective cover 2 213 inside. At this time, even if the front end of the upper stop portion 133 is pressed again, the projection 134 cannot be dislodged from the opening 213, so as to avoid being used again.

如图3所示，在本发明所提供的一次用安全注射器中，保护套2的滑轨21接近前端处也可不设凸点211，而是在滑轨21前端形成一渐缩的夹置部214。当要进行抽取或注射的动作而将保护套2向后推时，即可由夹置部214挟持导移杆132的两侧壁面，将保护套2固定于注射针头1的后端，避免保护套2向前移而妨碍注射或抽取的动作。As shown in Fig. 3, in the disposable safety syringe provided by the present invention, the sliding rail 21 of the protective cover 2 may not have a raised point 211 near the front end, but a tapered clamping portion is formed at the front end of the sliding rail 21 214. When the protective sheath 2 is pushed back for extraction or injection, the clamping part 214 can pinch the two sides of the guide rod 132 to fix the protective sheath 2 to the rear end of the injection needle 1, preventing the protective sheath from 2 Move forward to hinder the action of injection or extraction.

如图4所示，在本发明所提供的一次用安全注射器中，保护套2除了保留最前端包覆注射针12尖端的位置外，其后侧也可以片状或半圆状代替，以避免挡住注射器上的刻度，使在抽取定量检体或注射定量药剂时，不至于发生抽取或注射过量与不足的情况。As shown in Figure 4, in the disposable safety syringe provided by the present invention, in addition to retaining the position where the front end of the protective cover 2 covers the tip of the injection needle 12, its rear side can also be replaced by a sheet or a semicircle to avoid blocking The scale on the syringe prevents excessive or insufficient extraction or injection when taking quantitative samples or injecting quantitative medicaments.

如图5所示，在本发明所提供的一次用安全注射器中，滑轨21接近后端处也可不设凸点211，而直接以连接件4连接上挡部133与保护套2。因此在要使用本发明所提供的一次用安全注射器时，仅需将连接件4撕开，即可将保护套2向后推，进行抽取或注射的动作。另外，连接件4也可以黏胶、其它黏贴组件或其它黏接方式代替。As shown in FIG. 5 , in the disposable safety syringe provided by the present invention, the protrusion 211 may not be provided near the rear end of the slide rail 21 , and the upper stop portion 133 and the protective cover 2 are directly connected by the connecting piece 4 . Therefore, when the disposable safety syringe provided by the present invention is to be used, it is only necessary to tear the connecting piece 4, and then the protective cover 2 can be pushed backward to perform extraction or injection. In addition, the connecting member 4 can also be replaced by glue, other adhesive components or other adhesive methods.

如图6、图7所示，在本发明所提供的一次用安全注射器中，保护套2也可在滑轨21末端的止回挡块212后方一侧开设一旋入槽215，且在旋入槽215与滑轨21相接的位置设有若干止回挡块212。因此在进行抽取或注射完毕后，即可将保护套2向前推至注射针头1的最前端，然后旋动保护套2，使滑块13的导移杆132容置于旋入槽215内，并因止回挡块212的挡制，而使导移杆132无法再从旋入槽215内脱离，使本发明所提供的一次用安全注射器达到无法被二次使用的目的。另外，滑轨21接近前端处也可不设凸点211，而在滑轨21前端的一侧也开设一旋入槽215。因此在进行抽取或注射前，将保护套2相后拉时，可旋动保护套2，使导移杆132置入旋入槽215中，避免保护套2向前移动而妨碍注射或抽取的动作，且当注射或抽取完毕后，则仅需再次旋动保护套2，使导移杆132由旋入槽215内脱出，即可将保护套2向前推。As shown in Figures 6 and 7, in the disposable safety syringe provided by the present invention, the protective cover 2 can also provide a screw-in groove 215 on the rear side of the non-return stopper 212 at the end of the slide rail 21, and in the screw A plurality of non-return blocks 212 are provided at the position where the slot 215 meets the slide rail 21 . Therefore, after the extraction or injection is completed, the protective cover 2 can be pushed forward to the front end of the injection needle 1, and then the protective cover 2 can be rotated so that the guide rod 132 of the slider 13 is accommodated in the screw-in groove 215 , and due to the blocking of the non-return stopper 212, the guide rod 132 can no longer be disengaged from the screw-in groove 215, so that the disposable safety syringe provided by the present invention can not be used twice. In addition, the protruding point 211 may not be provided near the front end of the slide rail 21 , but a screw-in groove 215 is also provided on one side of the front end of the slide rail 21 . Therefore, before extraction or injection, when the protective cover 2 is pulled back, the protective cover 2 can be rotated so that the guide rod 132 is inserted into the screw-in groove 215, so as to prevent the protective cover 2 from moving forward and hindering injection or extraction. Action, and when the injection or extraction is completed, it is only necessary to rotate the protective cover 2 again, so that the guide rod 132 is disengaged from the screw-in groove 215, and the protective cover 2 can be pushed forward.

如图8、图9所示，在本发明所提供的一次用安全注射器中，保护套2上不设滑轨21后端的止回挡块212，而是在滑轨21末端一侧向上延伸一凸块22，并于凸块22上开设有一扣孔221，而上挡部133对应凸块22的扣孔221位置则设有一凸扣135。因此当本发明的一次用安全注射器在抽取或注射完毕后，仅需将凸扣135与扣孔221相扣合，即可使本发明达到避免被人二次使用的目的。另外，凸块22上的扣孔221可与上挡部133所设的凸扣135互相置换。再者，凸块22也可设于接近滑轨21末端的位置处，且凸块22上不设扣孔221，而上挡部133上所设的凸扣135则以一止回挡块212代替，因此当抽取或注射完毕后，将保护套2向前推时，上挡部133退至凸块22的后方，由于止回挡块212挡制于凸块22的后侧壁面，使保护套2无法再次向后拉，达到避免被人二次利用的目的，且上挡部133上的止回挡块212也可设置于凸块22上。As shown in Figures 8 and 9, in the disposable safety syringe provided by the present invention, the protective cover 2 is not provided with a non-return stopper 212 at the rear end of the slide rail 21, but extends upwards on the side of the end of the slide rail 21. The protruding block 22 defines a button hole 221 on the protruding block 22 , and the upper stop portion 133 is provided with a protruding button 135 corresponding to the position of the button hole 221 of the protruding block 22 . Therefore, after the single-use safety syringe of the present invention is drawn or injected, it is only necessary to fasten the convex button 135 with the button hole 221 to prevent the present invention from being used again. In addition, the buckle hole 221 on the protrusion 22 can be replaced with the protrusion buckle 135 provided on the upper stop portion 133 . Furthermore, the protruding block 22 can also be arranged at a position close to the end of the slide rail 21, and the protruding block 22 is not provided with a buckle hole 221, and the protruding buckle 135 provided on the upper stop portion 133 is provided with a non-return stopper 212 Instead, when the protective cover 2 is pushed forward after the extraction or injection is completed, the upper stopper 133 retreats to the rear of the projection 22, and the back side wall of the projection 22 is blocked by the non-return stopper 212, so that the protection The sleeve 2 cannot be pulled back again to avoid secondary use by people, and the non-return stopper 212 on the upper stopper 133 can also be arranged on the protrusion 22 .

如图10所示，在本发明所提供的一次用安全注射器中，滑轨21后方也可不设止回挡块212，而在上挡部133的末端底部向下延伸一可勾设于保护套2后端内侧壁面的扣勾136。因此当本发明所提供的一次用安全注射器使用完毕并将保护套2向前推至注射针头1最前端时，扣勾136穿过保护套2的后缘并勾设于保护套2后端的内侧壁面，使保护套2无法再次向后拉。As shown in Figure 10, in the disposable safety syringe provided by the present invention, the non-return stopper 212 may not be provided behind the slide rail 21, but the end bottom of the upper stop part 133 extends downwards and can be hooked on the protective sleeve 2. The buckle hook 136 on the inner wall surface of the rear end. Therefore, when the disposable safety syringe provided by the present invention is used up and the protective cover 2 is pushed forward to the front end of the injection needle 1, the buckle 136 passes through the rear edge of the protective cover 2 and is hooked on the inner side of the rear end of the protective cover 2 wall so that the protective case 2 cannot be pulled back again.

如图11所示，在本发明所提供的一次用安全注射器中，上挡部133的一侧或两侧向下延伸一穿勾137，而保护套2的滑轨21接近前端及接近后端的一侧或两侧则设有若干凹槽216，并在保护套2的滑轨21末端的一侧或两侧设置一穿孔217。本发明所提供的一次用安全注射器使用前，穿勾137置于滑轨21接近后端的凹槽216中作定位，而在使用时，将保护套2向后拉，使穿勾137脱离滑轨21接近后端的凹槽216而置入滑轨21接近前端的凹槽216内，以避免进行抽取或注射时，保护套2向前移动，造成抽取或注射上的困难。当抽取或注射完毕后，则仅需将保护套2向前推，使穿勾137落入滑轨21末端的穿孔217中，即可使保护套2无法再向后退，达到避免被人二次利用的目的。As shown in Figure 11, in the disposable safety syringe provided by the present invention, one or both sides of the upper stopper 133 extend downwards with a hook 137, and the slide rail 21 of the protective cover 2 is close to the front end and the back end. One side or both sides are provided with a plurality of grooves 216 , and one side or both sides of the end of the sliding rail 21 of the protective cover 2 is provided with a through hole 217 . Before the disposable safety syringe provided by the present invention is used, the hook 137 is placed in the groove 216 near the rear end of the slide rail 21 for positioning, and when in use, the protective cover 2 is pulled backward so that the hook 137 is detached from the slide rail 21 near the groove 216 at the rear end and put into the groove 216 near the front end of the slide rail 21, so as to prevent the protective cover 2 from moving forward when extracting or injecting, causing difficulties in extracting or injecting. After the extraction or injection is completed, it is only necessary to push the protective cover 2 forward so that the hook 137 falls into the perforation 217 at the end of the slide rail 21, so that the protective cover 2 can no longer be moved backwards, so as to avoid being caught twice. purpose of use.

如图12所示，在本发明所提供的一次用安全注射器中，滑轨21接近前端的位置处也可不设凸点211，而在滑轨21前端的保护套2上设置一凹扣23，且上挡部133的前端底缘则设有一凸扣138。当要进行抽取或注射而将保护套2向后拉时，上挡部133的凸扣138与保护套2的凹扣23相扣合，即可避免保护套2产生位移而导致注射或抽取上的困难。另外，上挡部133的凸扣138与保护套2的凹扣23也可互相对换。As shown in Fig. 12, in the disposable safety syringe provided by the present invention, the position near the front end of the slide rail 21 may not be provided with a convex point 211, but a concave buckle 23 is provided on the protective cover 2 at the front end of the slide rail 21, And a protruding buckle 138 is provided on the bottom edge of the front end of the upper blocking portion 133 . When the protective sheath 2 is pulled back for extraction or injection, the convex buckle 138 of the upper stopper 133 is engaged with the concave buckle 23 of the protective sheath 2, so that the displacement of the protective sheath 2 can be prevented from causing injection or extraction. Difficulties. In addition, the convex buckle 138 of the upper stopper 133 and the concave buckle 23 of the protective cover 2 can also be interchanged.

如图13所示，在本发明所提供的一次用安全注射器中，滑轨21接近前端的位置处也可不设凸点211，而在上挡部133的前端底缘设一凸部139，且凸部139的前后两端均呈一斜面。当要进行抽取或注射动作而将保护套2向后拉时，凸部139会通过其前端的斜面，使凸部139脱离滑轨21并移动至保护套2的前缘，使得进行注射或抽取时，凸部139挡制于保护套2的前端壁面，防止保护套2发生位移。而当抽取或注射完毕后，仅需将保护套2向前推，此时，凸部139即可通过其后侧的斜面，脱离保护套2的前端壁面而重新进入滑轨21中。As shown in Fig. 13, in the disposable safety syringe provided by the present invention, the position near the front end of the slide rail 21 may not be provided with a convex point 211, but a convex part 139 is provided at the bottom edge of the front end of the upper stop part 133, and Front and rear ends of the convex portion 139 are inclined. When the protective sheath 2 is pulled back for extraction or injection, the convex portion 139 will pass through the slope at its front end, so that the convex portion 139 will break away from the slide rail 21 and move to the front edge of the protective sheath 2, so that injection or extraction can be performed. At this time, the convex portion 139 blocks the front wall surface of the protective cover 2 to prevent the protective cover 2 from being displaced. And after extracting or injection is finished, only need protect cover 2 to be pushed forward, and at this moment, convex portion 139 can pass the slope of its rear side, break away from the front end wall surface of protect cover 2 and re-enter in the slide rail 21.

如图14所示，在本发明所提供的一次用安全注射器中，保护套2除保留最前端包覆注射针12尖端的位置外，其后侧则以片体24代替，且注射筒3上对应保护套2后侧的片状设有一凹部31，因此当保护套2向后推时，保护套2以后侧的片体24置入注射器的凹部31内。As shown in Figure 14, in the disposable safety syringe provided by the present invention, except for the position where the front end of the protective cover 2 covers the tip of the injection needle 12 is reserved, the rear side is replaced by a sheet 24, and the upper side of the syringe 3 is A recess 31 is provided on the sheet corresponding to the rear side of the protective cover 2 , so when the protective cover 2 is pushed backward, the rear sheet 24 of the protective cover 2 is placed into the recess 31 of the syringe.

如图15所示，在本发明所提供的一次用安全注射器中，保护套2除保留最前端包覆注射针12尖端的位置外，其后侧则以片体24代替，且凸点211及止回挡块212设置于滑轨21的内侧壁面，而滑块13上则不设上挡部133，并于注射筒3的外缘上凸设有可供保护套2后侧片体24置入的包覆部32。As shown in Figure 15, in the disposable safety syringe provided by the present invention, except that the protective cover 2 retains the position where the front end covers the tip of the injection needle 12, the rear side is replaced by a sheet 24, and the bumps 211 and The non-return stopper 212 is arranged on the inner wall surface of the slide rail 21, while the upper stopper 133 is not provided on the slide block 13, and the outer edge of the injection cylinder 3 is protruded with a rear side piece 24 of the protective cover 2. Into the covering part 32.

如图16所示，在本发明所提供的一次用安全注射器中，滑轨21接近前端处不设凸点211，而在上挡部133前缘设置一凸扣14，且保护套2的外缘前端凸设有一凸块25，凸块25对应上挡部133前缘凸扣14的位置则设有一凹扣251。当保护套2向后推时，凸扣14与凹扣251扣合，使保护套2不会产生位移。另外，上挡部133后端也可设置一凸扣14，且凸扣14的末端具有一塞设部141，而保护套2的末端也设有具凹扣251的凸块25，并于凹扣251的内侧设有一扣抵部252，因此，当本发明所提供的一次用安全注射器使用完毕时，可将保护套2向前推，使上挡部133后端的凸扣14容置于凹扣251中，且塞设部141与扣抵部252相扣合，使保护套2无法再后推，达到避免被人二次利用的目的。另外，上挡部133前端及后端所设的凸扣14也可与凸块25上的凹扣251互换。As shown in Figure 16, in the disposable safety syringe provided by the present invention, there is no convex point 211 near the front end of the slide rail 21, but a convex buckle 14 is provided on the front edge of the upper stop part 133, and the outer surface of the protective cover 2 A protrusion 25 is protruded from the front end of the edge, and a concave buckle 251 is provided on the position of the protrusion 25 corresponding to the convex buckle 14 of the front edge of the upper stop portion 133 . When the protective cover 2 is pushed backward, the convex buckle 14 is engaged with the concave button 251 so that the protective cover 2 will not be displaced. In addition, a protruding buckle 14 can also be provided at the rear end of the upper blocking portion 133, and the end of the protruding buckle 14 has a plugging portion 141, and the end of the protective cover 2 is also provided with a protruding block 25 with a concave buckle 251, and is located in the concave. The inner side of the buckle 251 is provided with a buckle part 252, therefore, when the disposable safety syringe provided by the present invention is used up, the protective cover 2 can be pushed forward so that the convex buckle 14 at the rear end of the upper stop part 133 is accommodated in the concave The buckle 251, and the plug part 141 is buckled with the buckle part 252, so that the protective cover 2 can no longer be pushed back, and the purpose of avoiding secondary use by people is achieved. In addition, the convex buckles 14 provided on the front and rear ends of the upper stop portion 133 can also be interchanged with the concave buckles 251 on the protruding block 25 .

如图17所示，在本发明所提供的一次用安全注射器中，插接部11上不设滑块13。保护套2由一前护盖111及一后护盖112构成，前护盖111的开口侧缘设有环挡部113，而前护盖111与后护盖112之间以一环型片114作连接，且环型片114的轴心与前护盖111及后护盖111的轴心之间产生有一偏移角。当本发明所提供的一次用安全注射器在使用前，前护盖111与后护盖112均套设于注射针头1的插接部11外缘，而注射针12则由一习用的针盖覆盖，当要进行抽取或注射的动作时，仅需将习用的针盖取下即可，而在抽取或注射完毕后，则将前护盖111向前拉，由于环型片114的轴心与前护盖111与后护盖112的轴心具有一偏移角，导致前护盖111在向前拉时产生偏移，使注射针12容置于前护盖111的内侧壁面及环挡部113之间，导致注射针12无法从前护盖111穿出，达到避免被人二次利用的目的。另外，环型片114的轴心也可与前护盖111及后护盖112的轴心同轴，而环型片114与前护盖111的连接则仅为单点或单侧连接，使前护盖111在向前拉时也会产生偏移的状况。As shown in FIG. 17 , in the disposable safety syringe provided by the present invention, no slider 13 is provided on the insertion part 11 . The protective cover 2 is composed of a front cover 111 and a rear cover 112. The opening side edge of the front cover 111 is provided with a ring stopper 113, and a ring-shaped piece 114 is arranged between the front cover 111 and the rear cover 112. connection, and there is an offset angle between the axis of the annular piece 114 and the axes of the front cover 111 and the rear cover 111 . Before the disposable safety syringe provided by the present invention is used, the front protective cover 111 and the rear protective cover 112 are sleeved on the outer edge of the insertion part 11 of the injection needle 1, and the injection needle 12 is covered by a conventional needle cover. , when the action of extraction or injection is to be performed, it is only necessary to remove the commonly used needle cover, and after the extraction or injection is completed, the front protective cover 111 is pulled forward, because the axis of the annular piece 114 is in line with the The axes of the front cover 111 and the rear cover 112 have an offset angle, which causes the front cover 111 to deviate when pulled forward, so that the injection needle 12 is accommodated on the inner wall surface of the front cover 111 and the ring stop 113, causing the injection needle 12 to fail to pass through the front cover 111, so as to avoid secondary use by people. In addition, the axis of the ring-shaped sheet 114 can also be coaxial with the axes of the front cover 111 and the rear cover 112, and the connection between the ring-shaped sheet 114 and the front cover 111 is only a single point or one side connection, so that When the front cover 111 is pulled forward, the situation of deviation also occurs.

如图18所示，在本发明所提供的一次用安全注射器中，滑块13也可与插接部11分离，在插接部11上向内凹设一环形凹槽15，而滑块13的底座131中间则开设有一扣孔16，且扣孔16包覆于环形凹槽15外缘，使本发明所提供的一次用安全注射器，可通过旋动插接部11来调整注射针12尖端斜面的方向。另外，插接部11前端的外缘也可对应注射针12尖端斜面的位置，而设置若干标示，使注射针12插入患者的注射部后，医护人员在旋动插接部11时，可得知注射针12尖端斜面的方向。As shown in Figure 18, in the disposable safety syringe provided by the present invention, the slider 13 can also be separated from the insertion part 11, and an annular groove 15 is recessed inward on the insertion part 11, and the slider 13 There is a button hole 16 in the middle of the base 131, and the button hole 16 covers the outer edge of the annular groove 15, so that the disposable safety syringe provided by the present invention can adjust the tip of the injection needle 12 by rotating the insertion part 11 The direction of the slope. In addition, the outer edge of the front end of the insertion part 11 can also be provided with a number of marks corresponding to the position of the inclined surface of the tip of the injection needle 12, so that after the injection needle 12 is inserted into the patient's injection part, when the medical staff rotates the insertion part 11, they can get Know the direction of the inclined surface of the injection needle 12 tip.

如图19、图20及图21所示，在本发明所提供的一次用安全注射器中，保护套2的止回挡块212后端可开设一容置部26，并在容置部26内侧周缘设有若干止回挡块212，且保护套2由滑轨21接近后端所设的凸点211位置向前渐缩，因此当抽取及注射完毕后将保护套2向前推时，可将上挡部133压入容置部26内，并由止回挡块212挡制，使上挡部133无法脱离容置部26，达到避免被二次利用的目的。另外，保护套2也可不采用由滑轨21接近后端所设的凸点211处向前里渐缩状的设计，使保护套2自滑轨21接近后端所设的凸点211处向上隆起。其次，滑轨21接近后端的位置也可不设凸点211，而以一罩套27罩盖于上挡部133上(如图21所示)，且罩盖27前端及后端分别延伸有一可置于滑轨21及容置部26内的盖体271，使本发明的一次用安全注射器在使用前，由罩盖27定位，使保护套2不会产生位移，避免发生危险。As shown in Fig. 19, Fig. 20 and Fig. 21, in the disposable safety syringe provided by the present invention, the rear end of the non-return stopper 212 of the protective sleeve 2 can be provided with an accommodating portion 26, and inside the accommodating portion 26 A number of non-return stops 212 are provided on the periphery, and the protective cover 2 is tapered forward by the position of the protruding point 211 set near the rear end of the slide rail 21. Therefore, when the extraction and injection are completed, the protective cover 2 can be pushed forward. Press the upper stop portion 133 into the accommodating portion 26 and stop it by the non-return stopper 212, so that the upper stop portion 133 cannot be separated from the accommodating portion 26, so as to avoid secondary use. In addition, the protective cover 2 may not adopt the design that the protruding point 211 provided near the rear end of the slide rail 21 is tapered forward, so that the protective cover 2 is upward from the protruding point 211 provided at the rear end of the slide rail 21 uplift. Secondly, the position near the rear end of the slide rail 21 may also not be provided with a convex point 211, but a cover cover 27 is used to cover the upper stop portion 133 (as shown in Figure 21), and the front end and the rear end of the cover cover 27 respectively extend a The cover 271 placed in the slide rail 21 and the accommodating portion 26 enables the disposable safety syringe of the present invention to be positioned by the cover 27 before use, so that the protective cover 2 will not be displaced and dangers will be avoided.

如图22、图23所示，在本发明所提供的一次用安全注射器中，滑轨21的后端可不设止回挡块212，而在滑轨21后端或保护套2后端内侧壁面产生偏移斜角27，并在保护套2前端设置仅可供注射针12穿出的环挡部28，当注射或抽取完毕将保护套2向前推时，保护套2受偏移斜角27的影响产生倾斜，使注射针12被环挡部28挡制，无法再由保护套2穿出，达到避免被人二次利用的目的。As shown in Figure 22 and Figure 23, in the disposable safety syringe provided by the present invention, the rear end of the slide rail 21 may not be provided with a non-return stopper 212, but on the inner wall surface of the rear end of the slide rail 21 or the rear end of the protective cover 2 An offset bevel 27 is generated, and a ring stop 28 that can only be passed through by the injection needle 12 is provided at the front end of the protective sheath 2. When the injection or extraction is completed and the protective sheath 2 is pushed forward, the protective sheath 2 is affected by the offset bevel. The impact of 27 produces an inclination, so that the injection needle 12 is blocked by the ring stop part 28, and can no longer be passed through the protective cover 2, so as to avoid being reused by people.

如图24所示，为本发明所提供的一次用安全注射器，其主要包括有：As shown in Figure 24, the disposable safety syringe provided by the present invention mainly includes:

一注射针头1，注射针头1前端插设有一注射针12，注射针头1的外缘设有一滑块13，滑块13由一底座131、一导移杆132及一上挡部133构成。An injection needle 1 . An injection needle 12 is inserted into the front end of the injection needle 1 . A slider 13 is provided on the outer edge of the injection needle 1 .

一留置针6，留置针6是在一套管61前端延伸有一软管62，而套管61后端缘则环设有一环挡部63。An indwelling needle 6 . The indwelling needle 6 is extended with a flexible tube 62 at the front end of the cannula 61 , and a ring stop 63 is provided around the rear end of the cannula 61 .

一保护套2，保护套2外缘设有一滑轨21，而在滑轨21的一侧或两侧接近前端及后端处均设有凸点211，且滑轨21在接近后端的凸点211的后方设有一个或一个以上的止回挡块212，另外，保护套2前端开口的内缘则设有若干勾设部7。A protective cover 2, the outer edge of the protective cover 2 is provided with a slide rail 21, and one or both sides of the slide rail 21 are provided with bumps 211 near the front end and the rear end, and the slide rail 21 is near the rear end. One or more non-return stoppers 212 are provided at the rear of 211. In addition, a number of hooking parts 7 are provided on the inner edge of the front opening of the protective cover 2.

留置针6以套管61套设于注射针头1的前缘，而软管62则包覆于注射针12的外侧，且保护套2为套设在注射针头1的外缘，其中注射针头1以导移杆132穿设在保护套2的滑轨21中，并以底座131抵顶于保护套2的内侧壁面，以上挡部133抵顶于保护套2的外侧壁面。当本发明所提供的一次用安全注射器使用前，上挡部133为固定于滑轨21接近后端的凸点211与止回挡块212之间，当要将注射针12插入患者的注射部时，仅需将保护套2向后拉，使上挡部133脱离滑轨21接近后端的凸点211，并通过滑轨21接近前端的凸点211，使注射针12由保护套2的前端露出，而滑块13的上挡部133后端壁面受滑轨21接近前端的凸点211挡制而无法退后，且保护套2前端的勾设部7则通过留置针6的环挡部63，然后将注射针头1以注射针12插入患者的注射部，并将保护套2向前推，由保护套2的勾设部7抵顶留置针6的环挡部63，而将留置针6的软管62向前推入患者的注射部，此时，医护人员按压留置针6的软管62与患者注射部相接处并握住保护套2，然后将注射针头1向后拉，使滑块13的上挡部133通过滑轨21后端的止回档块212，并由止回档块212挡制滑块13而使保护套2无法再向后退。另外，将注射针头1向后拉时，注射针12会由患者的注射部退出，且因医护人员按压住留置针6的软管62，而使留置针6留置于患者的注射部而与注射针12分离，使医护人员可以利用留置针6的套管61与点滴、注射器或其它抽取用具相接，进行抽取或注射的动作。另外，保护套2外缘所设的凸点211及止回挡块212也可设于滑轨21的内侧壁面用于挡制滑块13的导移杆132。此外，保护套2外缘所设的凸点211及止回挡块212也可设于保护套2的内侧壁面用于挡制滑块13的底座131。The indwelling needle 6 is sleeved on the front edge of the injection needle 1 with the sleeve 61, and the hose 62 is covered on the outside of the injection needle 12, and the protective sleeve 2 is sleeved on the outer edge of the injection needle 1, wherein the injection needle 1 The guide rod 132 is installed in the slide rail 21 of the protective cover 2 , and the base 131 abuts against the inner wall surface of the protective cover 2 , and the upper stopper 133 abuts against the outer wall surface of the protective cover 2 . Before the disposable safety syringe provided by the present invention is used, the upper stopper 133 is fixed between the protruding point 211 near the rear end of the slide rail 21 and the non-return stopper 212, when the injection needle 12 is to be inserted into the injection part of the patient , it is only necessary to pull the protective cover 2 backward, so that the upper stopper 133 is separated from the slide rail 21 and approaches the convex point 211 at the rear end, and through the slide rail 21 approaches the convex point 211 at the front end, so that the injection needle 12 is exposed from the front end of the protective cover 2 , while the rear end wall surface of the upper stop portion 133 of the slider 13 is blocked by the bump 211 close to the front end of the slide rail 21 and cannot retreat, and the hooking portion 7 at the front end of the protective cover 2 passes through the ring stop portion 63 of the indwelling needle 6 , and then insert the injection needle 1 into the injection part of the patient with the injection needle 12, and push the protective cover 2 forward, and the hooking part 7 of the protective cover 2 pushes against the ring stopper 63 of the indwelling needle 6, and the indwelling needle 6 The flexible tube 62 of the indwelling needle 6 is pushed forward into the injection part of the patient. At this time, the medical staff presses the connection between the flexible tube 62 of the indwelling needle 6 and the patient's injection part and holds the protective cover 2, and then pulls the injection needle 1 backward to make it The upper stop portion 133 of the slider 13 passes through the non-return stopper 212 at the rear end of the slide rail 21, and the non-return stopper 212 blocks the slider 13 so that the protective cover 2 cannot move backward. In addition, when the injection needle 1 is pulled back, the injection needle 12 will withdraw from the injection part of the patient, and because the medical staff presses the flexible tube 62 of the indwelling needle 6, the indwelling needle 6 is left in the patient's injection part and is in contact with the injection part of the patient. The injection needle 12 is separated, so that the medical staff can use the sleeve 61 of the indwelling needle 6 to connect with drips, syringes or other extraction tools to perform extraction or injection. In addition, the protrusions 211 and the non-return stoppers 212 provided on the outer edge of the protective cover 2 can also be provided on the inner wall surface of the sliding rail 21 to block the guide rod 132 of the sliding block 13 . In addition, the protruding points 211 and non-return stoppers 212 provided on the outer edge of the protective cover 2 can also be provided on the inner wall surface of the protective cover 2 for blocking the base 131 of the slider 13 .

如图25所示，本发明所提供的一次用安全注射器使用前，保护套2的前缘抵顶于套管61的后侧，且保护盖2前缘设有若干连接件8(如扣勾或黏胶...等)与留置针6的环挡部63作扣接或黏贴，而注射针12则由一习用的针盖作覆盖。当要进行抽取或注射时，仅需将习用的针盖取下，再将注射针头1以注射针12插入患者的注射部，然后将保护套2向前推，通过保护套2的前缘抵顶留置针6的环挡部63，使留置针6的软管62向前推入患者的注射部，此时，医护人员按压留置针6的软管62与患者注射部相接处并握住保护套2，然后将注射针头1向后拉，使滑块13的上挡部133通过滑轨21后端的止回档块212，并由止回档块212挡制滑块13而使保护套2无法再向后退。另外，将注射针头1向后拉时，注射针12会从患者的注射部退出，且因医护人员按压住留置针6的软管62，而使留置针6留置于患者的注射部而与注射针12分离，使医护人员可以利用留置针6的套管61与点滴、注射器或其它抽取用具相接，进行抽取或注射的动作。此外，保护套2也可仅留前端包覆注射针12的尖端部份，而保护套的后端则以一片体24代替。As shown in Figure 25, before the disposable safety syringe provided by the present invention is used, the front edge of the protective cover 2 is against the rear side of the sleeve 61, and the front edge of the protective cover 2 is provided with several connecting parts 8 (such as buckle hooks). Or viscose... etc.) and the ring stopper 63 of the indwelling needle 6 are fastened or pasted, while the injection needle 12 is covered by a conventional needle cover. When extracting or injecting, it is only necessary to remove the conventional needle cover, then insert the injection needle 1 into the injection part of the patient with the injection needle 12, and then push the protective cover 2 forward, and pass the front edge of the protective cover 2. Push the ring stopper 63 of the indwelling needle 6 to push the flexible tube 62 of the indwelling needle 6 forward into the injection part of the patient. Protective sleeve 2, and then pull the injection needle 1 backward, so that the upper stop part 133 of the slider 13 passes through the non-return stopper 212 at the rear end of the slide rail 21, and the slider 13 is blocked by the non-return stopper 212 to make the protective sleeve 2 can no longer go backwards. In addition, when the injection needle 1 is pulled back, the injection needle 12 will withdraw from the injection part of the patient, and because the medical staff presses the flexible tube 62 of the indwelling needle 6, the indwelling needle 6 is left in the patient's injection part and is in contact with the injection part of the patient. The injection needle 12 is separated, so that the medical staff can use the sleeve 61 of the indwelling needle 6 to connect with drips, syringes or other extraction tools to perform extraction or injection. In addition, only the front end of the protective sheath 2 can cover the tip of the injection needle 12 , while the rear end of the protective sheath is replaced by a piece 24 .

如图26、图27、图28、图29、图30、图31、图32、图33、图34、图35、图36、图37、图38、图39、图40、图41、图42及图43所示，本发明上述具有留置针的一次用安全注射器中，除保护套2前端开口设有勾设部7外，其保护套2及滑块13的结构也可如前述图2、图3、图5、图6、图7、图8、图9、图10、图11、图12、图13、图16、图17、图19、图20、图21、图22及图23所示的结构。Figure 26, Figure 27, Figure 28, Figure 29, Figure 30, Figure 31, Figure 32, Figure 33, Figure 34, Figure 35, Figure 36, Figure 37, Figure 38, Figure 39, Figure 40, Figure 41, Figure 42 and 43, in the above-mentioned disposable safety syringe with indwelling needles of the present invention, except that the front end opening of the protective cover 2 is provided with a hooking part 7, the structure of the protective cover 2 and the slider 13 can also be as shown in the aforementioned Figure 2 , Figure 3, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 16, Figure 17, Figure 19, Figure 20, Figure 21, Figure 22 and Figure 23 shows the structure.

如图43及图44所示，在本发明所提供的一次用安全注射器中，环型片114也可用一伸缩管115代替，且伸缩管115的轴心与注射针112的轴心产生有一偏移角，因此前护盖111向前拉时会产生偏移的状况，且前护盖111的前缘设有若干连接件8(如扣勾或黏胶...等)，在本发明使用前与留置针6的环挡部63作扣接或黏贴。As shown in Fig. 43 and Fig. 44, in the disposable safety syringe provided by the present invention, the annular sheet 114 can also be replaced by a telescopic tube 115, and the axis of the telescopic tube 115 is offset from the axis of the injection needle 112. The angle is shifted, so when the front cover 111 is pulled forward, there will be an offset situation, and the front edge of the front cover 111 is provided with a number of connecting parts 8 (such as hooks or glue ... etc.), which are used in the present invention The front is buckled or pasted with the ring stopper 63 of the indwelling needle 6.

如图45所示，在本发明所提供的一次用安全注射器中，注射针头1的外缘凸设有若干对称的手握部115，而保护套2上则开设有可供手握部115穿入的滑移槽218，使医护人员在操作本发明所提供的一次用安全注射器时，可握住手握部115进行操作，以免发生注射针头1被保护套2包覆住而不易操作的状况。另外，注射针头1的外缘可不设手握部115，保护套2上也不开设滑移槽218，而是在注射针头1外缘对应滑块13的另一侧设置另一滑块13，保护套2则在对应该滑块13的位置设一滑轨21，使医护人员在操作时，可握住二滑块13的上挡部133，同样可避免产生注射针头1被保护套2包覆住而不易操作的状况。As shown in Figure 45, in the disposable safety syringe provided by the present invention, the outer edge of the injection needle 1 is protruded with a number of symmetrical handles 115, and the protective cover 2 is provided with holes for the handles 115 to wear. The sliding groove 218 inserted in it enables the medical staff to hold the grip part 115 when operating the disposable safety syringe provided by the present invention, so as to avoid the situation that the injection needle 1 is covered by the protective sheath 2 and is difficult to operate . In addition, the outer edge of the injection needle 1 may not be provided with a handle 115, and the protective cover 2 may not be provided with a sliding groove 218. Instead, another slider 13 is provided on the outer edge of the injection needle 1 corresponding to the other side of the slider 13. The protective cover 2 is provided with a slide rail 21 at the position corresponding to the slide block 13, so that the medical personnel can hold the upper stop portion 133 of the second slide block 13 during operation, which can also prevent the injection needle 1 from being wrapped by the protective cover 2. Covered and difficult to operate.

上述详细说明是针对本发明的可行实施例的具体说明，所举实施例并非用于限制本发明的专利范围，凡根据本发明所作的等效实施或变更，均应包含于本发明的专利范围中。The above detailed description is a specific description of feasible embodiments of the present invention, and the examples cited are not used to limit the patent scope of the present invention. All equivalent implementations or changes made according to the present invention should be included in the patent scope of the present invention middle.

工业应用性Industrial applicability

本发明提供的一次用安全注射器，易于操作，安全性好，且无须担心被人二次使用，适用于医疗、卫生行业。The one-time safety syringe provided by the invention is easy to operate, has good safety, and does not need to worry about being used again by people, and is suitable for medical treatment and sanitation industries.

Claims (56)

1.一种一次用安全注射器，其特征在于包括：1. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with bumps near the front end and the rear end, and the bumps near the rear end of the slide rail are There is one or more non-return stops at the rear of the 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 2.一种一次用安全注射器，其特征在于包括：2. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述保护套或滑轨的内侧壁面的一侧或两侧接近前端及后端之处均设有凸点，且所述保护套或滑轨的内侧壁面在接近后端的凸点的后方设有一个或一个以上的止回挡块；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the inner wall surface of the protective cover or slide rail are provided with bumps near the front end and the rear end, and the protective cover Or the inner wall surface of the slide rail is provided with one or more non-return stoppers behind the raised point close to the rear end; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 3.一种一次用安全注射器，其特征在于包括：3. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，所述滑轨的末端向下凹设一开口，所述滑轨与开口的相接处凸设有一个或一个以上的凸点，所述注射针头的上挡部末端底部设有一容置于开口内的凸块；A protective cover, the outer edge of the protective cover is provided with a slide rail, and an opening is recessed downward at the end of the slide rail, and one or more convex points are protruded at the junction of the slide rail and the opening, so The bottom of the upper end of the injection needle is provided with a protrusion accommodated in the opening; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 4.一种一次用安全注射器，其特征在于包括：4. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨前端形成一渐缩的夹置部，所述滑轨的一侧或两侧接近后端之处设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块；A protective cover, the outer edge of the protective cover is provided with a slide rail, and a tapered clamping part is formed at the front end of the slide rail, and convex points are provided on one or both sides of the slide rail near the rear end, And the slide rail is provided with one or more non-return stoppers behind the raised point close to the rear end; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 5.如权利要求1所述的一次用安全注射器，其特征在于：所述保护套除了保留最前端包覆注射针尖端的位置外，其后侧是片状或半圆状。5. The disposable safety syringe according to claim 1, characterized in that, except for the position where the front end of the protective sleeve covers the tip of the injection needle is reserved, the rear side of the protective sleeve is in the shape of a sheet or a semicircle. 6.一种一次用安全注射器，其特征在于包括：6. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端设有凸点，所述滑轨接近后端处设置有连接件，连接所述上挡部与保护套，所述连接件是黏胶或其他黏贴组件，且所述滑轨在接近后端的连接件的后方设有一个或一个以上的止回挡块；A protective cover, the outer edge of the protective cover is provided with a slide rail, a convex point is provided on one or both sides of the slide rail close to the front end, and a connecting piece is provided near the rear end of the slide rail to connect the upper The stopper and the protective cover, the connecting piece is glue or other adhesive components, and the slide rail is provided with one or more non-return stoppers behind the connecting piece close to the rear end; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 7.如权利要求1所述的一次用安全注射器，其特征在于：所述保护套在滑轨末端的止回挡块后方一侧开设一旋入槽，且于旋入槽与滑轨相接的位置设有若干止回挡块。7. The disposable safety syringe according to claim 1, characterized in that: the protective cover is provided with a screw-in groove on the rear side of the non-return stopper at the end of the slide rail, and the screw-in groove connects with the slide rail There are several non-return stops at the position. 8.一种一次用安全注射器，其特征在于包括：8. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近后端之处设有凸点，在所述滑轨前端的一侧开设有一前端旋入槽，所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块，所述保护套在滑轨后端的止回挡块后方一侧开设一末端旋入槽，且于末端旋入槽与滑轨相接的位置设有若干止回挡块；A protective sleeve, the outer edge of the protective sleeve is provided with a slide rail, a convex point is provided on one or both sides of the slide rail near the rear end, and a front end screw-in is provided on one side of the front end of the slide rail groove, the slide rail is provided with one or more non-return stoppers behind the protruding point near the rear end, and the protective sleeve has an end screw-in groove on the rear side of the non-return stopper at the rear end of the slide rail, and A number of non-return stops are provided at the position where the screw-in groove at the end meets the slide rail; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 9.一种一次用安全注射器，其特征在于包括：9. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，在所述滑轨末端一侧向上延伸一凸块，并在所述凸块上开设有一扣孔，所述上挡部对应所述凸块的扣孔位置设有一凸扣；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with protruding points close to the front end and the rear end, and one side extends upward at the end of the slide rail. a bump, and a button hole is provided on the bump, and a button is provided on the upper stop corresponding to the button hole of the bump; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 10.一种一次用安全注射器，其特征在于包括：10. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，在所述滑轨末端一侧向上延伸一凸块，并在所述凸块上开设有一凸扣，所述上挡部对应所述凸块的凸扣位置设有一扣孔；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with protruding points close to the front end and the rear end, and one side extends upward at the end of the slide rail. a convex block, and a convex button is provided on the convex block, and a button hole is provided on the upper stop corresponding to the convex button position of the convex block; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 11.一种一次用安全注射器，其特征在于包括：11. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成，所述上挡部上设置有一止回挡块；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop A non-return block is arranged on the upper block; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，在接近所述滑轨末端一侧向上延伸一凸块；A protective cover, the outer edge of the protective cover is provided with a slide rail, protruding points are provided on one or both sides of the slide rail near the front end and the rear end, and the side near the end of the slide rail extends upward a bump; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 12.一种一次用安全注射器，其特征在于包括：12. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，在接近所述滑轨末端一侧向上延伸一凸块，所述凸块上设置有一止回挡块；A protective cover, the outer edge of the protective cover is provided with a slide rail, protruding points are provided on one or both sides of the slide rail near the front end and the rear end, and the side near the end of the slide rail extends upward a bump, and a non-return stopper is arranged on the bump; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 13.一种一次用安全注射器，其特征在于包括：13. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点；A protective cover, the outer edge of the protective cover is provided with a slide rail, and convex points are provided on one or both sides of the slide rail near the front end and the rear end; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面，在所述上挡部的末端底部向下延伸一勾设在保护套后端内侧壁面的扣勾。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod In the slide rail, the base is used to abut against the inner wall surface of the protective cover, the upper stop part is used to abut against the outer wall surface of the protective cover, and the end bottom of the upper stop part extends downward A buckle hook arranged on the inner wall surface of the rear end of the protective cover. 14.如权利要求1所述的一次用安全注射器，其特征在于：所述上挡部的一侧或两侧向下延伸一穿勾，而所述保护套的滑轨接近前端及接近后端的一侧或两侧则设有若干凹槽，并在所述保护套的滑轨末端的一侧或两侧设置一穿孔。14. The disposable safety syringe according to claim 1, characterized in that: one or both sides of the upper stop part extend downwards with a hook, and the slide rail of the protective cover is close to the front end and the back end Several grooves are provided on one or both sides, and a perforation is provided on one or both sides of the end of the slide rail of the protective cover. 15.一种一次用安全注射器，其特征在于包括：15. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近后端之处设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块，在所述滑轨前端的保护套上设置一凹扣、在所述上挡部的前端底缘设有一凸扣，或者在所述滑轨前端的保护套上设置一凸扣、在所述上挡部的前端底缘设有一凹扣；A protective cover, the outer edge of the protective cover is provided with a slide rail, and a convex point is provided on one or both sides of the slide rail near the rear end, and the slide rail is provided behind the convex point near the rear end. There are one or more non-return stoppers, a concave buckle is provided on the protective sleeve at the front end of the slide rail, a convex buckle is provided at the front end bottom edge of the upper stop part, or a protective cover at the front end of the slide rail A convex buckle is set on the sleeve, and a concave buckle is set on the bottom edge of the front end of the upper retaining part; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 16.一种一次用安全注射器，其特征在于包括：16. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成，所述上挡部的前端底缘设一凸部，所述凸部的前后两端均呈一斜面；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop part, the bottom edge of the front end of the upper stop part is provided with a convex part, and the front and rear ends of the convex part are all inclined planes; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近后端之处设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块；A protective cover, the outer edge of the protective cover is provided with a slide rail, and a convex point is provided on one or both sides of the slide rail near the rear end, and the slide rail is provided behind the convex point near the rear end. have one or more non-return stops; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 17.一种一次用安全注射器，其特征在于包括：17. A disposable safety syringe, characterized by comprising: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套除最前端包覆注射针尖端的位置外，其后侧是片体，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块；A protective cover, except for the front end of the protective cover covering the tip of the injection needle, the rear side of the protective cover is a sheet, and the outer edge of the protective cover is provided with a slide rail, which is close to one or both sides of the slide rail. Both the front end and the rear end are provided with convex points, and the slide rail is provided with one or more non-return stoppers behind the convex points near the rear end; 一注射筒，所述注射筒前端插接注射针头，所述注射筒上对应所述保护套后侧的片体上设有一凹部；A syringe, the front end of the syringe is plugged with an injection needle, and a recess is provided on the sheet corresponding to the rear side of the protective cover on the syringe; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 18.一种一次用安全注射器，其特征在于包括：18. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座及一导移杆构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base and a guide rod; 一保护套，所述保护套除最前端包覆注射针尖端的位置外，其后侧是片体，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处的内侧壁面设置有凸点，且所述滑轨内侧壁面在接近后端的凸点的后方设有一个或一个以上的止回挡块；A protective cover, except for the front end of the protective cover covering the tip of the injection needle, the rear side of the protective cover is a sheet, and the outer edge of the protective cover is provided with a slide rail, which is close to one or both sides of the slide rail. The inner wall surface at the front end and the rear end is provided with bumps, and the inner wall surface of the slide rail is provided with one or more non-return stoppers behind the bumps near the rear end; 一注射筒，所述注射筒前端插接注射针头，在所述注射筒的外缘凸设有供所述保护套后侧片体置入的包覆部；An injection cylinder, the front end of the injection cylinder is inserted with an injection needle, and a coating part is protruded on the outer edge of the injection cylinder for the rear side piece of the protective sleeve to be inserted into; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod in the slide rail, and use the base to abut against the inner wall surface of the protective cover. 19.一种一次用安全注射器，其特征在于包括：19. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成，所述上挡部前缘设有一凸扣；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop part, the front edge of the upper stop part is provided with a convex buckle; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近后端之处设有凸点，所述保护套的外缘前端凸设有一凸块，所述凸块对应所述上挡部前缘凸扣的位置设有一凹扣；A protective cover, the outer edge of the protective cover is provided with a slide rail, and a convex point is provided on one or both sides of the slide rail near the rear end, and a bump is protruded from the front end of the outer edge of the protective cover, A concave buckle is provided at the position of the protrusion corresponding to the convex buckle on the front edge of the upper stop; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 20.一种一次用安全注射器，其特征在于包括：20. A disposable safety syringe, characterized in that it comprises: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成，所述上挡部前缘设有一凹扣；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop part, the front edge of the upper stop part is provided with a concave buckle; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近后端之处设有凸点，所述保护套的外缘前端凸设有一凸块，所述凸块对应所述上挡部前缘凹扣的位置设有一凸扣；A protective cover, the outer edge of the protective cover is provided with a slide rail, and a convex point is provided on one or both sides of the slide rail near the rear end, and a bump is protruded from the front end of the outer edge of the protective cover, A protruding buckle is provided at the position corresponding to the concave buckle on the front edge of the upper retaining part of the bump; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 21.如权利要求19或20所述的一次用安全注射器，其特征在于：所述上挡部后端设有一凸扣，且所述上挡部后端设有的凸扣的末端具有一塞设部，而所述保护套的末端也设有具凹扣的凸块，并在所述保护套末端设有的凸块的凹扣的内侧设有一扣抵部。21. The disposable safety syringe according to claim 19 or 20, characterized in that: a convex buckle is provided at the rear end of the upper stop part, and a plug is provided at the end of the convex buckle provided at the rear end of the upper stop part The end of the protective cover is also provided with a convex block with a concave buckle, and a buckle part is provided on the inner side of the concave buckle of the convex block provided at the end of the protective cover. 22.一种一次用安全注射器，其特征在于包括：22. A disposable safety syringe, characterized by comprising: 一注射针头，在所述注射针头的一插接部前端插设有一注射针；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 一保护套，所述保护套由一护盖及一后护盖所构成，所述前护盖内缘的开口侧缘设有环挡部，所述前护盖与所述后护盖之间以一环型片作连接，且所述环型片的轴心与所述前护盖及所述后护盖的轴心产生有一偏移角；A protective cover, the protective cover is composed of a protective cover and a rear protective cover, the opening side edge of the inner edge of the front protective cover is provided with a ring stop, between the front protective cover and the rear protective cover A ring-shaped piece is used for connection, and the axis of the ring-shaped piece forms an offset angle with the axes of the front cover and the rear cover; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘。The injection needle is sleeved on the front end of the injection barrel through the socket, and the protective sleeve is sleeved on the outer edge of the injection needle. 23.一种一次用安全注射器，其特征在于包括：23. A disposable safety syringe, characterized by comprising: 一注射针头，在所述注射针头的一插接部前端插设有一注射针；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle; 一注射筒，所述注射筒前端插接注射针头；a syringe, the front end of the syringe is plugged with an injection needle; 一保护套，所述保护套由一护盖及一后护盖所构成，所述前护盖内缘的开口侧缘设有环挡部，所述前护盖与所述后护盖之间以一环型片作连接，所述环型片的轴心与所述前护盖及所述后护盖的轴心同轴，所述环型片与所述前护盖的连接仅为单点或单侧的连接；A protective cover, the protective cover is composed of a protective cover and a rear protective cover, the opening side edge of the inner edge of the front protective cover is provided with a ring stop, between the front protective cover and the rear protective cover A ring-shaped sheet is connected, the axis of the ring-shaped sheet is coaxial with the axes of the front cover and the rear cover, and the connection between the ring-shaped sheet and the front cover is only a single point or one-sided connections; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘。The injection needle is sleeved on the front end of the injection barrel through the socket, and the protective sleeve is sleeved on the outer edge of the injection needle. 24.如权利要求1所述的一次用安全注射器，其特征在于：所述滑块与所述插接部分离，所述插接部上向内凹设一环形凹槽，所述滑块的底座中间则开设有扣孔，且所述扣孔为包覆于环形凹槽外缘。24. The disposable safety syringe according to claim 1, characterized in that: the sliding block is separated from the insertion part, and an annular groove is recessed inward on the insertion part, and the sliding block A button hole is opened in the middle of the base, and the button hole covers the outer edge of the annular groove. 25.如权利要求1所述的一次用安全注射器，其特征在于：所述保护套的止回挡块后端开设一容置部，所述容置部内侧周缘设有若干止回挡块，且所述保护套由所述滑轨接近后端所设的凸点位置向前渐缩。25. The disposable safety syringe according to claim 1, characterized in that: the rear end of the non-return stopper of the protective sleeve is provided with a receiving part, and the inner peripheral edge of the receiving part is provided with several non-return stoppers, And the protective cover is tapered forward from the position of the protruding point provided near the rear end of the slide rail. 26.如权利要求1所述的一次用安全注射器，其特征在于：所述保护套的止回挡块后端开设一容置部，所述容置部内侧周缘设有若干止回挡块，所述保护套自所述滑轨接近后端所设的凸点处向上隆起。26. The disposable safety syringe according to claim 1, characterized in that: the rear end of the non-return stopper of the protective sleeve is provided with a receiving part, and the inner peripheral edge of the receiving part is provided with several non-return stoppers, The protective cover bulges upwards from the protruding point provided near the rear end of the slide rail. 27.如权利要求25所述的一次用安全注射器，其特征在于：还包含一罩套罩盖于所述滑块的上挡部上，所述罩盖前端及后端分别延伸有一盖体容置于滑轨及容置部内。27. The disposable safety syringe according to claim 25, further comprising a cover cover on the upper stop portion of the slider, the front end and the rear end of the cover respectively extend a cover body Placed in the slide rail and accommodating part. 28.一种一次用安全注射器，其特征在于包括：28. A disposable safety syringe, characterized by comprising: 一注射针头，在所述注射针头的一插接部前端插设有一注射针，且所述插接部外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部构成；An injection needle, an injection needle is inserted at the front end of an insertion part of the injection needle, and a slider is provided on the outer edge of the insertion part, and the slider is composed of a base, a guide rod and an upper stop Department composition; 一保护套，所述保护套外缘开设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，在所述滑轨后端或所述保护套后端内侧壁面产生偏移斜角；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with protruding points close to the front end and the rear end, and at the rear end of the slide rail or the protective cover The inner wall surface of the rear end of the sleeve produces an offset bevel; 一注射筒，所述注射筒前端插接注射针头，在所述保护套前端设置仅供所述注射针穿出的环挡部；A syringe, the front end of the syringe is inserted into the injection needle, and a ring stopper is provided at the front end of the protective sleeve only for the injection needle to pass through; 所述注射针头以插接部套接于所述注射筒的前端，所述保护套套设于所述注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The injection needle is sleeved on the front end of the injection barrel by the socket, the protective sleeve is sleeved on the outer edge of the injection needle, wherein the injection needle is passed through the protective sleeve by the guide rod The base is used to abut against the inner wall surface of the protective cover, and the upper stop part is used to abut against the outer wall surface of the protective cover. 29.一种一次用安全注射器，其特征在于包括：29. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with bumps near the front end and the rear end, and the bumps near the rear end of the slide rail are One or more non-return stoppers are provided at the rear of the protective cover, and several hooking parts are provided in the opening at the front end of the protective cover; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 30.如权利要求29所述的一次用安全注射器，其特征在于：所述保护套的前缘抵顶于所述套管的后侧，所述注射针则由一习用的针盖覆盖，且所述保护套前缘设有若干连接件与所述留置针的环挡部作扣接或黏贴。30. The single-use safety syringe according to claim 29, wherein the front edge of the protective sleeve abuts against the rear side of the sleeve, the injection needle is covered by a conventional needle cover, and The front edge of the protective sheath is provided with a number of connectors for fastening or sticking to the ring stop of the indwelling needle. 31.如权利要求29所述的一次用安全注射器，其特征在于：所述保护套仅留前端包覆所述注射针的尖端部分，所述保护套的后端则为一片体。31. The disposable safety syringe according to claim 29, characterized in that only the front end of the protective sleeve covers the tip of the injection needle, and the rear end of the protective sleeve is a single piece. 32.一种一次用安全注射器，其特征在于包括：32. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述保护套的滑轨的一侧或两侧接近前端及后端之处的内侧壁面均设有凸点，且在所述保护套的滑轨接近后端之处的内侧壁面的凸点的后方设有一个或一个以上的止回挡块，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail of the protective cover are provided with bumps on the inner side wall near the front end and the rear end, and on the protective cover One or more non-return stoppers are provided behind the convex point on the inner wall surface where the slide rail of the cover is close to the rear end, and several hooking parts are provided in the opening at the front end of the protective cover; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 33.一种一次用安全注射器，其特征在于包括：33. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的末端向下凹设一开口，且所述注射针头的上挡部末端底部设有一容置于开口内的凸块，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, an opening is recessed downward at the end of the slide rail, and the bottom of the upper stopper end of the injection needle is provided with a protrusion accommodated in the opening , there are several hooking parts in the opening at the front end of the protective cover; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 34.一种一次用安全注射器，其特征在于包括：34. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，所述滑轨的前端形成一渐缩的夹置部，在所述滑轨的一侧或两侧接近后端之处设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, the front end of the slide rail forms a tapered clamping part, and a convex point is provided on one or both sides of the slide rail near the rear end , and the slide rail is provided with one or more non-return stoppers behind the raised point close to the rear end, and a number of hooking parts are provided in the opening of the front end of the protective cover; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 35.一种一次用安全注射器，其特征在于包括：35. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近前端之处设有凸点，所述滑轨接近后端处设置有连接件，以连接所述上挡部与保护套，所述连接件是黏胶或其它黏贴组件，且所述滑轨在接近后端的连接件的后方设有一个或一个以上的止回挡块，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, a convex point is provided on one or both sides of the slide rail near the front end, and a connecting piece is provided near the rear end of the slide rail to connect The upper stopper and the protective sleeve, the connecting piece is glue or other adhesive components, and the slide rail is provided with one or more non-return stoppers behind the connecting piece close to the rear end, the protective There are several hooking parts in the opening at the front end of the sleeve; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 36.如权利要求29所述的一次用安全注射器，其特征在于：所述保护套在所述滑轨末端的止回挡块后方一侧开设一旋入槽，在所述旋入槽与所述滑轨相接的位置设有若干止回挡块。36. The disposable safety syringe according to claim 29, characterized in that: said protective cover is provided with a screw-in groove on the side behind the non-return stopper at the end of said slide rail, and said screw-in groove is connected to said screw-in groove. A number of non-return stops are provided at the positions where the slide rails meet. 37.一种一次用安全注射器，其特征在于包括：37. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近后端之处设有凸点，在所述滑轨前端的一侧开设有一前端旋入槽，所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块，在所述滑轨末端一侧开设一末端旋入槽，在所述末端旋入槽与所述滑轨相接的位置设有若干止回挡块，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, a convex point is provided on one or both sides of the slide rail near the rear end, and a front end screw-in is provided on one side of the front end of the slide rail Slot, the slide rail is provided with one or more non-return stoppers behind the protruding point close to the rear end, and an end screw-in groove is provided on the end side of the slide rail, and the screw-in groove at the end is connected with the A number of non-return blocks are provided at the position where the slide rails meet, and a number of hooking parts are provided in the opening at the front end of the protective cover; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 38.一种一次用安全注射器，其特征在于包括：38. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近前端之处设有凸点，所述保护套前端的开口内设有若干勾设部，在所述滑轨末端一侧向上延伸一凸块，在所述凸块上开设有一扣孔，所述上挡部对应所述凸块的扣孔位置则设有一凸扣；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with bumps close to the front end, and several hooking parts are arranged in the opening of the front end of the protective cover, A convex block is extended upward on one side of the end of the slide rail, a button hole is opened on the convex block, and a convex button is provided on the upper stop corresponding to the button hole position of the convex block; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 39.一种一次用安全注射器，其特征在于包括：39. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近前端之处设有凸点，所述保护套前端的开口内设有若干勾设部，在所述滑轨末端一侧向上延伸一凸块，在所述凸块上开设有一凸扣，所述上挡部对应所述凸块的凸扣位置则设有一扣孔；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with bumps close to the front end, and several hooking parts are arranged in the opening of the front end of the protective cover, A convex block is extended upward on one side of the end of the slide rail, a convex button is provided on the convex block, and a button hole is provided on the upper stop corresponding to the convex button position of the convex block; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 40.一种一次用安全注射器，其特征在于包括：40. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成，所述上挡部设置有一止回挡块；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, the slider is composed of a base, a guide rod and an upper stopper, the upper The stopper is provided with a non-return stopper; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近前端之处设有凸点，所述保护套前端的开口内设有若干勾设部，在接近所述滑轨末端一侧向上延伸一凸块；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with bumps close to the front end, and several hooking parts are arranged in the opening of the front end of the protective cover, a protrusion extending upward on a side close to the end of the slide rail; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 41.一种一次用安全注射器，其特征在于包括：41. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近前端之处设有凸点，所述保护套前端的开口内设有若干勾设部，在接近所述滑轨末端的一侧向上延伸一凸块，所述凸块上设置一止回挡块；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one or both sides of the slide rail are provided with bumps close to the front end, and several hooking parts are arranged in the opening of the front end of the protective cover, a protruding block is extended upward on a side close to the end of the slide rail, and a non-return stopper is arranged on the protruding block; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 42.一种一次用安全注射器，其特征在于包括：42. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，所述上挡部的末端底部向下延伸一勾设于所述保护套后端内侧壁面的扣勾，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, protruding points are provided on one or both sides of the slide rail near the front end and the rear end, and the end bottom of the upper stop part extends downward A buckle hook provided on the inner wall surface of the rear end of the protective cover, and several hooking parts are arranged in the opening of the front end of the protective cover; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 43.一种一次用安全注射器，其特征在于包括：43. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成，所述上挡部的一侧或两侧向下延伸一穿勾；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, the slider is composed of a base, a guide rod and an upper stopper, the upper One or both sides of the retaining portion extend downwards with a hook; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有若干凹槽，在所述保护套的滑轨接近末端的一侧或两侧设置一穿孔，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, and a plurality of grooves are arranged on one side or both sides of the slide rail near the front end and the rear end, and the slide rail of the protective cover is close to the end A perforation is provided on one or both sides of the protective cover, and a number of hooking parts are provided in the opening at the front end of the protective cover; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 44.一种一次用安全注射器，其特征在于包括：44. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成，所述上挡部的前端底缘设有一凸扣；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, the slider is composed of a base, a guide rod and an upper stopper, the upper A convex buckle is provided on the bottom edge of the front end of the retaining portion; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，所述滑轨前端的保护套上设置一凹扣，在所述滑轨的一侧或两侧接近后端之处设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, a concave buckle is provided on the protective cover at the front end of the slide rail, and convex points are provided on one side or both sides of the slide rail close to the rear end, And the slide rail is provided with one or more non-return stoppers behind the convex point close to the rear end, and a number of hooking parts are provided in the opening of the front end of the protective cover; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 45.一种一次用安全注射器，其特征在于包括：45. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成，所述上挡部的前端底缘设一凸部，且所述凸部的前后两端均呈一斜面；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, the slider is composed of a base, a guide rod and an upper stopper, the upper A convex portion is provided on the bottom edge of the front end of the blocking portion, and the front and rear ends of the convex portion are both inclined; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近后端之处设有凸点，且所述滑轨在接近后端的凸点的后方设有一个或一个以上的止回挡块，所述保护套前端的开口内设有若干勾设部；A protective cover, the outer edge of the protective cover is provided with a slide rail, and one side or both sides of the slide rail is provided with a convex point close to the rear end, and the slide rail is provided behind the convex point close to the rear end. There are one or more non-return stoppers, and several hooking parts are arranged in the opening at the front end of the protective cover; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 46.如权利要求29所述的一次用安全注射器，其特征在于：所述上挡部前缘设有一凸扣，而所述保护套的外缘前端则凸设有一凸块，且所述凸块对应上挡部前缘凸扣的位置则设有一凹扣，所述上挡部的凸扣与所述凸块的凹扣互相置换。46. The disposable safety syringe according to claim 29, characterized in that: the front edge of the upper stop is provided with a convex button, and the front end of the outer edge of the protective cover is provided with a convex block, and the convex A concave buckle is provided at the position of the block corresponding to the convex buckle on the front edge of the upper blocking portion, and the convex buckle on the upper blocking portion is replaced with the concave buckle on the raised block. 47.如权利要求46所述的一次用安全注射器，其特征在于：所述上挡部后端设有一凸扣，所述上挡部后端设有的凸扣的末端则具有一塞设部，所述保护套的末端也设有具凹扣的凸块，并在所述保护套的末端设有的凸块的凹扣的内侧设有一扣抵部。47. The disposable safety syringe according to claim 46, characterized in that: the rear end of the upper stop part is provided with a convex buckle, and the end of the convex buckle provided at the rear end of the upper stop part is provided with a plugging part , The end of the protective cover is also provided with a convex block with a concave buckle, and a buckle part is provided on the inner side of the concave buckle of the convex block provided at the end of the protective cover. 48.如权利要求29所述的一次用安全注射器，其特征在于：所述保护套的止回挡块后端开设有一容置部，在所述容置部内侧周缘设有若干止回挡块，且所述保护套由所述滑轨接近后端所设的凸点位置向前渐缩。48. The disposable safety syringe according to claim 29, characterized in that: the rear end of the non-return stopper of the protective sleeve is provided with a housing part, and several non-return stoppers are arranged on the inner periphery of the housing part , and the protective sleeve is tapered forward from the protruding point provided near the rear end of the slide rail. 49.如权利要求29所述的一次用安全注射器，其特征在于：所述保护套的止回挡块后端开设有一容置部，在所述容置部内侧周缘设有若干止回挡块，所述保护套自所述滑轨接近后端所设的凸点处向上隆起。49. The disposable safety syringe according to claim 29, characterized in that: the rear end of the non-return stopper of the protective sleeve is provided with a housing part, and several non-return stoppers are arranged on the inner periphery of the housing part , the protective sleeve bulges upward from the protruding point provided near the rear end of the slide rail. 50.如权利要求48所述的一次用安全注射器，其特征在于：所述滑轨接近后端的位置设置一罩套罩盖于所述滑块的上挡部上，且所述罩盖前端及后端分别延伸有一盖体容置于所述滑轨及所述容置部内。50. The disposable safety syringe according to claim 48, characterized in that: a cover cover is provided on the upper stop portion of the slider at a position close to the rear end of the slide rail, and the front end of the cover and the A cover extends from the rear end and is accommodated in the slide rail and the accommodating portion. 51.一种一次用安全注射器，其特征在于包括：51. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针，且所述注射针头外缘设有一滑块，所述滑块由一底座、一导移杆及一上挡部所构成；An injection needle, an injection needle is inserted into the front end of the injection needle, and a slider is provided on the outer edge of the injection needle, and the slider is composed of a base, a guide rod and an upper stop; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护套外缘设有一滑轨，在所述滑轨的一侧或两侧接近前端及后端之处均设有凸点，所述滑轨后端或所述保护套后端内侧壁面产生偏移斜角，并于所述保护套前端设置仅供所述注射针穿出的环挡部；A protective cover, the outer edge of the protective cover is provided with a slide rail, on one or both sides of the slide rail near the front end and the rear end are provided with convex points, the rear end of the slide rail or the protective cover The inner wall surface of the rear end produces an offset bevel, and a ring stop is provided at the front end of the protective sleeve only for the injection needle to pass through; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘，其中所述注射针头以所述导移杆穿设于所述保护套的滑轨中，并以所述底座抵顶于所述保护套的内侧壁面，以所述上挡部抵顶于所述保护套的外侧壁面。The indwelling needle is sleeved on the front edge of the injection needle with the sleeve, the flexible tube is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle, wherein the The injection needle is passed through the slide rail of the protective cover by the guide rod, and the base is pressed against the inner wall of the protective cover, and the upper stop is pressed against the protective cover of the outer wall. 52.一种一次用安全注射器，其特征在于包括：52. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针；an injection needle, the front end of the injection needle is inserted with an injection needle; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护由一前护盖及一后护盖所构成，所述前护盖内缘的开口侧缘设有环挡部，所述前护盖与所述后护盖之间则以一环型片作连接，且所述环型片的轴心与所述前护盖及所述后护盖的轴心产生有一偏移角，并在所述前护盖的前缘设有若干连接件与所述留置针的环挡部作扣接或黏贴；A protective cover, the protection is composed of a front cover and a rear cover, the opening side edge of the inner edge of the front cover is provided with a ring stop, between the front cover and the rear cover Then a ring-shaped piece is used for connection, and the axis of the ring-shaped piece has an offset angle with the axes of the front cover and the rear cover, and a front edge of the front cover is provided. There are a number of connectors for fastening or sticking to the ring stop part of the indwelling needle; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘。The indwelling needle is sleeved on the front edge of the injection needle by the sleeve, the hose is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle. 53.一种一次用安全注射器，其特征在于包括：53. A disposable safety syringe, characterized by comprising: 一注射针头，所述注射针头前端插设有一注射针；an injection needle, the front end of the injection needle is inserted with an injection needle; 一留置针，在所述留置针的一套管前端延伸有一软管，所述套管后端缘环设有一环挡部；An indwelling needle, a flexible tube is extended at the front end of the cannula of the indwelling needle, and a ring stop is provided on the rear edge of the cannula; 一保护套，所述保护由一前护盖及一后护盖所构成，所述前护盖内缘的开口侧缘设有环挡部，所述前护盖与所述后护盖之间则以一环型片作连接，所述环型片的轴心与所述前护盖及所述后护盖的轴心同轴，所述环型片与所述前护盖的连接则仅为单点或单侧的连接；A protective cover, the protection is composed of a front cover and a rear cover, the opening side edge of the inner edge of the front cover is provided with a ring stop, between the front cover and the rear cover Then a ring-shaped piece is connected, the axis of the ring-shaped piece is coaxial with the axis of the front cover and the rear cover, and the connection between the ring-shaped piece and the front cover is only for single-point or one-sided connections; 所述留置针以所述套管套设于所述注射针头的前缘，所述软管则包覆于所述注射针的外侧，且所述保护套套设于注射针头的外缘。The indwelling needle is sleeved on the front edge of the injection needle by the sleeve, the hose is covered on the outside of the injection needle, and the protective sleeve is sleeved on the outer edge of the injection needle. 54.如权利要求52所述的一次用安全注射器，其特征在于：所述环型片为一伸缩管，且所述伸缩管的轴心与所述注射针的轴心产生有一偏移角。54. The disposable safety syringe as claimed in claim 52, wherein the annular piece is a telescopic tube, and the axis of the telescopic tube forms an offset angle with the axis of the injection needle. 55.如权利要求29所述的一次用安全注射器，其特征在于：所述注射针头的外缘凸设若干对称的手握部，所述保护套上则开设有供手握部穿入的滑移槽。55. The disposable safety syringe according to claim 29, characterized in that: the outer edge of the injection needle protrudes from a plurality of symmetrical handles, and the protective cover is provided with sliding holes for the handles to penetrate. relocate. 56.如权利要求29所述的一次用安全注射器，其特征在于：所述注射针头外缘对应所述滑块的另一侧设置有另一滑块，所述保护套对应所述另一滑块的位置则设有一滑轨。56. The disposable safety syringe according to claim 29, wherein another slider is provided on the outer edge of the injection needle corresponding to the other side of the slider, and the protective sleeve corresponds to the other slider. The position of the block is then provided with a slide rail.
CN2004800429774A 2004-04-30 2004-04-30 Disposable safety syringe Expired - Fee Related CN1953776B (en)

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CN100475284C (en) * 2006-02-08 2009-04-08 杨章民 Safety protective cover for disposable syringe
CN102371015B (en) * 2011-09-02 2016-04-20 汪贤宗 Safty pin
CN107847679B (en) * 2015-06-03 2021-06-25 因杰科托集团公司 Syringe for preventing accidental needle stick injuries
CN110946628B (en) * 2020-01-06 2023-04-21 北京新希望六和生物科技产业集团有限公司 Tissue medical sampler for livestock
KR102387319B1 (en) * 2020-07-29 2022-04-22 (주)픽스앤케어 Medical syringe safety box and safety syringe equipped with the same

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CN1429631A (en) * 2001-12-28 2003-07-16 贝克顿迪肯森公司 Medical needle assembly

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US4927018A (en) * 1988-12-06 1990-05-22 Herbert Yang Disposable covered needle safety assembly
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