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CN105944187A - 一种注射进针深度可调的隐针机构 - Google Patents

一种注射进针深度可调的隐针机构 Download PDF

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CN105944187A
CN105944187A CN201610404603.7A CN201610404603A CN105944187A CN 105944187 A CN105944187 A CN 105944187A CN 201610404603 A CN201610404603 A CN 201610404603A CN 105944187 A CN105944187 A CN 105944187A
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adjustable
fixed
movable end
needle
cover
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许云初
王少锋
吴军美
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Jiangsu Delfu Medical Devices Co Ltd
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Jiangsu Delfu Medical Devices Co Ltd
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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
    • 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
    • A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
    • 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
    • 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
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
    • 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
    • A61M5/46—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 having means for controlling depth of insertion
    • 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
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
    • A61M2005/3267—Biased sleeves where the needle is uncovered by insertion of the needle into a patient's body
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/19—Constructional features of carpules, syringes or blisters

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

Abstract

本发明公开了一种注射进针深度可调的隐针机构，包括活动端盖、可调外盖和固定外壳，固定外壳固定在注射器主体的顶端，固定外壳通过螺纹旋转连接可调外盖，固定外壳和可调外盖的连接处设置有限位件，可调外盖顶部设置有活动端盖，活动端盖和固定外壳之间固定有弹簧，活动端盖通过弹簧固定在可调外盖的顶面，注射器主体的顶面固定有锁紧套，锁紧套的顶面配套有针头，针头设置在活动端盖的内部；本发明在组装结束之后，通过可调外盖的端面调整，精准控制注入皮肤的针头深度。同时病人在使用过程中完全看不到针头，整个进针，注射，以及拔出过程都是在机构内部完成的。会大大降低病人看到针头时带来的恐惧感，从而更加有利于注射。

Description

一种注射进针深度可调的隐针机构
技术领域
本发明涉及一种隐针机构，特别涉及一种注射进针深度可调的隐针机构，属于医疗器械技术领域。
背景技术
现有的注射针都采用直接进针，针头裸露在外面，在病人使用时容易引起恐惧感，造成心理压力；同时由于医务人员控制不到位，很难准确控制注射深度；从而可能导致注射不准确。同时由于针头在外，没有任何保护装置，病人在使用时，容易造成其他不必要的伤害。
发明内容
本发明要解决的技术问题是克服针头裸露在外面，容易引起恐惧感、很难准确控制注射深度的缺陷，提供一种注射进针深度可调的隐针机构。
为了解决上述技术问题，本发明提供了如下的技术方案：
本发明一种注射进针深度可调的隐针机构，包括活动端盖、可调外盖和固定外壳，所述固定外壳固定在注射器主体的顶端，所述固定外壳通过螺纹旋转连接所述可调外盖,所述固定外壳和所述可调外盖的连接处设置有限位件，所述可调外盖的顶部设置有所述活动端盖，所述活动端盖和所述固定外壳之间固定有弹簧，所述活动端盖通过弹簧固定在所述可调外盖的顶面，所述注射器主体的顶面固定有锁紧套，所述锁紧套的顶面配套有针头，所述针头设置在所述活动端盖的内部。
作为本发明的一种优选技术方案，所述固定外壳通过卡扣旋转固定在所述注射器本体上。
作为本发明的一种优选技术方案，所述活动端盖设有限位挡边，确保其只能在可调外盖内活动。
作为本发明的一种优选技术方案，所述限位件为单向推拔型所述限位件。
作为本发明的一种优选技术方案，所述活动端盖的顶面中心位置留有供所述针头伸缩的通孔。
作为本发明的一种优选技术方案，所述固定外壳上标有刻度，通过可调外盖的端面指示刻度。
本发明所达到的有益效果是：该种注射进针深度可调的隐针机构，从功能上讲，在组装结束之后，通过可调外盖的端面调整，精准控制注入皮肤的针头深度。大大提高了产品在使用过程中的安全性。同时病人在使用过程中完全看不到针头，整个进针，注射，以及拔出过程都是在机构内部完成的。会大大降低病人看到针头时带来的恐惧感，从而更加有利于注射。从结构上讲，本发明隐藏结构为一个单独的组件，用户使用时更加简便。隐针组件和注射本体通过卡扣旋转固定，简单可靠。从外观上讲，本机构简洁的圆柱结构，适合多种注射器主体，形成了更加完美的配合。
附图说明
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：
图1是本发明的平面结构示意图；
图2是本发明的注射器结构示意图；
图中：1、活动端盖；2、弹簧；3、可调外盖；4、限位件；5、固定外壳；6、针头；7、锁紧套；8、注射器主体。
具体实施方式
以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。
实施例1
如图1-2所示，一种注射进针深度可调的隐针机构，包括活动端盖1、可调外盖3和固定外壳5，固定外壳5固定在注射器主体8的顶端，固定外壳5通过螺纹旋转连接可调外盖3，固定外壳5和可调外盖3的连接处设置有限位件4，可调外盖3的顶部设置有活动端盖1，活动端盖1和固定外壳5之间固定有弹簧2，活动端盖1通过弹簧2固定在可调外盖3的顶面，注射器主体8的顶面固定有锁紧套7，锁紧套7的顶面配套有针头6，针头6设置在活动端盖1的内部。
固定外壳5通过卡扣旋转固定在注射器本体8上。活动端盖1设有限位挡边，确保其只能在可调外盖3内活动。限位件4为单向推拔型限位件4。活动端盖1的顶面中心位置留有供针头6伸缩的通孔。固定外壳5上标有刻度，通过可调外盖3的端面指示刻度。
工作原理：
1：将弹簧2及活动端盖1放置在可调外盖3的里面，固定外壳5通过螺纹与可调外盖3固定连接；
2：活动端盖1在弹簧2的作用下，自动外伸到最前端；受压时，活动端盖1会自动回缩到与可调外盖3端面平齐；
3：通过调解可调外盖3与固定外壳5的螺纹，调整可调外盖3的端面伸出长度，同时控制合理的可调范围内；通过限位件4限位，防止向外调节时可调外盖3分离。
将装好的组件装在注射器主体8顶端，通过扣位旋转，与注射器主体固定在一起，拆装简单，固定可靠。在使用过程中，活动端盖1与皮肤接触，然后将针头6前压，则完成进针动作；而在推动过程中，活动端盖1会在弹簧2作用下不会前进，始终与皮肤接触。其余（包括针头6）都会前进，推进到可调外盖接触皮肤后，进针完成。通过螺纹调节可调外盖3的伸出长度，基准调节并控制注入皮肤的针头深度。待注射完成后。针头拔出后活动端盖1亦会在弹簧2作用下复位。
该种注射进针深度可调的隐针机构，从功能上讲，在组装结束之后，通过可调外盖的端面调整，精准控制注入皮肤的针头深度。大大提高了产品在使用过程中的安全性。同时病人在使用过程中完全看不到针头，整个进针，注射，以及拔出过程都是在机构内部完成的。会大大降低病人看到针头时带来的恐惧感，从而更加有利于注射。从结构上讲，本发明隐藏结构为一个单独的组件，用户使用时更加简便。隐针组件和注射本体通过卡扣旋转固定，简单可靠。从外观上讲，本机构简洁的圆柱结构，适合多种注射器主体，形成了更加完美的配合。
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (6)

1.一种注射进针深度可调的隐针机构，包括活动端盖(1)、可调外盖(3)和固定外壳(5)，其特征在于，所述固定外壳(5)固定在注射器主体(8)的顶端，所述固定外壳(5)通过螺纹旋转连接所述可调外盖(3)，所述固定外壳(5)和所述可调外盖(3)的连接处设置有限位件(4)，所述可调外盖(3)的顶部设置有所述活动端盖(1)，所述活动端盖(1)和所述固定外壳(5)之间固定有弹簧(2)，所述活动端盖(1)通过弹簧(2)固定在所述可调外盖(3)的顶面，所述注射器主体(8)的顶面固定有锁紧套(7)，所述锁紧套(7)的顶面配套有针头(6)，所述针头(6)设置在所述活动端盖(1)的内部。
2.根据权利要求1所述的一种注射进针深度可调的隐针机构，其特征在于，所述固定外壳(5)通过卡扣旋转固定在所述注射器本体(8)上。
3.根据权利要求1所述的一种注射进针深度可调的隐针机构，其特征在于，所述活动端盖(1)设有限位挡边，确保其只能在可调外盖(3)内活动。
4.根据权利要求1所述的一种注射进针深度可调的隐针机构，其特征在于，所述限位件(4)为单向推拔型所述限位件(4)。
5.根据权利要求1所述的一种注射进针深度可调的隐针机构，其特征在于，所述活动端盖(1)的顶面中心位置留有供所述针头(6)伸缩的通孔。
6.根据权利要求1所述的一种注射进针深度可调的隐针机构，其特征在于，所述固定外壳(5)上标有刻度，通过可调外盖(3)的端面指示刻度。
CN201610404603.7A 2016-05-25 2016-06-08 一种注射进针深度可调的隐针机构 Pending CN105944187A (zh)

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CN106390243A (zh) * 2016-11-23 2017-02-15 合肥贺博教育科技有限公司 一种注射深度可调的针头隐藏式注射器
CN112156281A (zh) * 2020-10-12 2021-01-01 普昂(杭州)医疗科技有限公司 一种锁针结构、针管长度调节方法及针装置

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CN205988444U (zh) * 2016-05-25 2017-03-01 江苏德尔福医疗器械有限公司 一种注射进针深度可调的隐针机构
CN113069603B (zh) * 2021-03-19 2022-01-25 成都恒博天姿医疗美容门诊部有限公司 适用于多种皮层的整容外科手术精准抽脂系统及工艺
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