CN203861697U - Automatic injector - Google Patents
Automatic injector Download PDFInfo
- Publication number
- CN203861697U CN203861697U CN201420100766.2U CN201420100766U CN203861697U CN 203861697 U CN203861697 U CN 203861697U CN 201420100766 U CN201420100766 U CN 201420100766U CN 203861697 U CN203861697 U CN 203861697U
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- Prior art keywords
- syringe
- piston rod
- push
- rod
- lock
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- Expired - Fee Related
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- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000007423 decrease Effects 0.000 claims description 6
- 244000309464 bull Species 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
本实用新型公开了一种自动注射器，包括针筒和设置在针筒前端的针头，所述针筒内设置有活塞杆，所述活塞杆前端设置有活塞，所述针筒外壁上设置有副筒，所述副筒内设置有推板，推板背面设置有弹簧，所述推板上设置有推杆，所述推杆通过连动机构和活塞杆连接，靠近针筒顶端处设置有锁销，所述活塞杆上设置有锁孔，锁销穿过针筒壁与锁孔匹配连接，注射器在使用之前，针筒内已经配好药液，副筒内的弹簧处于压缩状态，锁销插入锁孔内，注射时，将针头刺入注射位置，手指拨动锁销，锁销从锁孔内滑出，在压缩弹簧弹力作用下，推杆带动活塞杆缓慢均匀推进，实现自动注射，节约了人力，提高了注射效率。
The utility model discloses an automatic injector, which comprises a syringe and a needle arranged at the front end of the syringe, a piston rod is arranged inside the syringe, a piston is arranged at the front end of the piston rod, and a pair of cylinder, the auxiliary cylinder is provided with a push plate, the back of the push plate is provided with a spring, the push plate is provided with a push rod, the push rod is connected with the piston rod through a linkage mechanism, and a lock is provided near the top of the syringe. The piston rod is provided with a lock hole, and the lock pin passes through the wall of the syringe and is connected with the lock hole. Insert the needle into the lock hole. When injecting, insert the needle into the injection position, move the lock pin with your fingers, and the lock pin slides out of the lock hole. Under the action of the compression spring, the push rod drives the piston rod to advance slowly and evenly, realizing automatic injection. It saves manpower and improves injection efficiency.
Description
技术领域technical field
本实用新型涉及医疗器械技术领域，尤其涉及一种自动注射器。The utility model relates to the technical field of medical instruments, in particular to an automatic injector.
背景技术Background technique
注射器作为常规的医疗器械已经在医疗单位广泛使用。目前，临床上所使用的注射器主要由针头、针筒、推杆和活塞构成，在给病人进行注射时，需要推动推杆将药液推出，这样操作十分麻烦、费时费力，给护理人员增加了工作难度。Syringes have been widely used in medical institutions as conventional medical devices. At present, the syringes used clinically are mainly composed of needles, syringes, push rods and pistons. When injecting patients, it is necessary to push the push rod to push out the liquid medicine. Difficulty of work.
实用新型内容Utility model content
有鉴于此，本实用新型的目的是提供一种在给病人进行注射时能够自动推出药液的注射器。In view of this, the purpose of this utility model is to provide a syringe that can automatically push out the medicinal liquid when injecting to the patient.
本实用新型通过以下技术手段解决上述问题：一种自动注射器，包括针筒和设置在针筒前端的针头，所述针筒内设置有活塞杆，所述活塞杆前端设置有活塞，所述针筒外壁上设置有副筒，所述副筒内设置有推板，推板背面设置有弹簧，所述推板上设置有推杆，所述推杆通过连动机构和活塞杆连接，靠近针筒顶端处设置有锁销，所述活塞杆上设置有锁孔，锁销穿过针筒壁与锁孔匹配连接。The utility model solves the above problems through the following technical means: an automatic injector, including a syringe and a needle arranged at the front end of the syringe, a piston rod is arranged inside the syringe, a piston is arranged at the front end of the piston rod, and the needle An auxiliary cylinder is arranged on the outer wall of the cylinder, a push plate is arranged inside the auxiliary cylinder, a spring is arranged on the back of the push plate, a push rod is arranged on the push plate, the push rod is connected with the piston rod through a linkage mechanism, and is close to the needle A locking pin is arranged at the top of the barrel, and a locking hole is arranged on the piston rod, and the locking pin passes through the wall of the syringe and is matched with the locking hole.
进一步，所述副筒内壁设置有摩擦片，所述摩擦片的粗糙度顺着注射方向逐渐减少。Further, the inner wall of the auxiliary cylinder is provided with a friction plate, and the roughness of the friction plate decreases gradually along the injection direction.
进一步，所述连动机构包括相互啮合的小齿轮、中齿轮和大齿轮，所述推杆上设置有与小齿轮啮合的锯齿Ⅰ，所述活塞杆上设置有与大齿轮啮合的锯齿Ⅱ。Further, the linkage mechanism includes a pinion gear, a middle gear and a large gear that mesh with each other, the push rod is provided with a sawtooth I that meshes with the pinion, and the piston rod is provided with a sawtooth II that meshes with the large gear.
本实用新型的有益效果：本实用新型的自动注射器，包括针筒和设置在针筒前端的针头，所述针筒内设置有活塞杆，所述活塞杆前端设置有活塞，所述针筒外壁上设置有副筒，所述副筒内设置有推板，推板背面设置有弹簧，所述推板上设置有推杆，所述推杆通过连动机构和活塞杆连接，靠近针筒顶端处设置有锁销，所述活塞杆上设置有锁孔，锁销穿过针筒壁与锁孔匹配连接，注射器在使用之前，针筒内已经配好药液，副筒内的弹簧处于压缩状态，锁销插入锁孔内，注射时，将针头刺入注射位置，手指拨动锁销，锁销从锁孔内滑出，在压缩弹簧弹力作用下，推杆带动活塞杆缓慢均匀推进，实现自动注射，节约了人力，提高了注射效率。Beneficial effects of the present utility model: the automatic injector of the present utility model includes a syringe and a needle arranged at the front end of the syringe, a piston rod is arranged inside the syringe, a piston is provided at the front end of the piston rod, and the outer wall of the syringe is There is an auxiliary cylinder on the top, a push plate is arranged inside the auxiliary cylinder, a spring is arranged on the back of the push plate, a push rod is arranged on the push plate, the push rod is connected with the piston rod through a linkage mechanism, and is close to the top of the syringe. A lock pin is provided at the piston rod, and a lock hole is provided on the piston rod. The lock pin passes through the wall of the syringe and is connected with the lock hole. In this state, the lock pin is inserted into the lock hole. When injecting, insert the needle into the injection position, move the lock pin with your fingers, and the lock pin slides out of the lock hole. Under the action of the compression spring, the push rod drives the piston rod to advance slowly and evenly. Realize automatic injection, save manpower and improve injection efficiency.
附图说明Description of drawings
下面结合附图和实施例对本实用新型作进一步描述。Below in conjunction with accompanying drawing and embodiment the utility model is described further.
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
具体实施方式Detailed ways
以下将结合附图对本实用新型进行详细说明，如图所示：该自动注射器，包括针筒1和设置在针筒前端的针头2，所述针筒内设置有活塞杆3，所述活塞杆前端设置有活塞4，所述针筒外壁上设置有副筒5，所述副筒内设置有推板6，推板背面设置有弹簧7，所述推板上设置有推杆8，所述推杆通过连动机构和活塞杆连接，靠近针筒顶端处设置有锁销9，所述活塞杆上设置有锁孔10，锁销穿过针筒壁与锁孔匹配连接，注射器在使用之前，针筒内已经配好药液，副筒内的弹簧处于压缩状态，锁销插入锁孔内，注射时，将针头刺入注射位置，手指拨动锁销，锁销从锁孔内滑出，在压缩弹簧弹力作用下，推杆带动活塞杆缓慢均匀推进，实现自动注射，节约了人力，提高了注射效率。The utility model will be described in detail below in conjunction with the accompanying drawings, as shown in the figure: the automatic injector includes a syringe 1 and a needle 2 arranged at the front end of the syringe, a piston rod 3 is arranged in the syringe, and the piston rod The front end is provided with a piston 4, the outer wall of the syringe is provided with an auxiliary cylinder 5, the inside of the auxiliary cylinder is provided with a push plate 6, the back of the push plate is provided with a spring 7, and the push plate is provided with a push rod 8. The push rod is connected with the piston rod through a linkage mechanism, and a lock pin 9 is provided near the top of the syringe, and a lock hole 10 is provided on the piston rod, and the lock pin passes through the wall of the syringe and is matched with the lock hole. , the liquid medicine has been prepared in the syringe, the spring in the auxiliary cylinder is in a compressed state, and the lock pin is inserted into the lock hole. When injecting, insert the needle into the injection position, move the lock pin with your fingers, and the lock pin slides out of the lock hole. , Under the elastic force of the compression spring, the push rod drives the piston rod to advance slowly and uniformly, realizing automatic injection, saving manpower and improving injection efficiency.
作为上述技术方案的进一步改进，所述副筒内壁设置有摩擦片11，所述摩擦片的粗糙度顺着注射方向逐渐减少，摩擦片能减缓注射过程中推杆的推进速度，同时其粗糙度顺着注射方向逐渐减少，推板与摩擦片之间的摩擦力也逐渐减小，与注射推进过程中弹簧的弹力逐渐减少相适应，使注射推进过程更加平缓，速度趋于均匀。As a further improvement of the above technical solution, the inner wall of the auxiliary cylinder is provided with a friction plate 11, and the roughness of the friction plate decreases gradually along the injection direction. The friction plate can slow down the advancing speed of the push rod during the injection process, and its roughness As the injection direction gradually decreases, the friction between the push plate and the friction plate also gradually decreases, which adapts to the gradual decrease of the spring force during the injection advancement process, making the injection advancement process more gentle and the speed tends to be uniform.
作为上述技术方案的进一步改进，所述连动机构包括相互啮合的小齿轮12、中齿轮13和大齿轮14，所述推杆8上设置有与小齿轮12啮合的锯齿Ⅰ，所述活塞杆3上设置有与大齿轮14啮合的锯齿Ⅱ，采取推杆带动小齿轮、小齿轮带动中齿轮、中齿轮带动大齿轮、大齿轮再带动活塞杆注射推进的方式，能获得更低、更平稳、更均匀的推进的速度，实现自动微量缓慢注射的目的。As a further improvement of the above-mentioned technical solution, the linkage mechanism includes a pinion gear 12, a middle gear 13 and a bull gear 14 that mesh with each other, the push rod 8 is provided with sawtooth I that meshes with the pinion gear 12, and the piston rod 3 is provided with sawtooth II which meshes with the large gear 14. The push rod drives the small gear, the small gear drives the middle gear, the middle gear drives the large gear, and the large gear drives the piston rod to inject and advance, which can achieve lower and more stable injection. , More uniform advance speed, to achieve the purpose of automatic micro-slow injection.
最后说明的是，以上实施例仅用以说明本实用新型的技术方案而非限制，尽管参照较佳实施例对本实用新型进行了详细说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或者等同替换，而不脱离本实用新型技术方案的宗旨和范围，其均应涵盖在本实用新型的权利要求范围当中。Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100766.2U CN203861697U (en) | 2014-03-06 | 2014-03-06 | Automatic injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100766.2U CN203861697U (en) | 2014-03-06 | 2014-03-06 | Automatic injector |
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| CN203861697U true CN203861697U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420100766.2U Expired - Fee Related CN203861697U (en) | 2014-03-06 | 2014-03-06 | Automatic injector |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104337523A (en) * | 2014-10-24 | 2015-02-11 | 苏州仁捷瑞自动化科技有限公司 | Syringe capable of pumping automatically |
| CN104352352A (en) * | 2014-10-24 | 2015-02-18 | 苏州仁捷瑞自动化科技有限公司 | Detachable automatic suction injector |
| CN104382738B (en) * | 2014-10-24 | 2017-02-15 | 冯伟明 | Injector capable of realizing quantitative and fast suction |
| CN107157779A (en) * | 2017-06-28 | 2017-09-15 | 中国人民解放军总医院 | Nutrient solution pusher |
| CN108310543A (en) * | 2018-03-07 | 2018-07-24 | 梁楠 | A kind of syringe of achievable propulsive liquid flow control |
| WO2019016346A1 (en) * | 2017-07-21 | 2019-01-24 | Becton Dickinson France | Assisted injection device for injecting a composition contained in a medical container with reduced efforts |
| CN109876242A (en) * | 2019-03-27 | 2019-06-14 | 河海大学常州校区 | A kind of syringe |
| CN110693641A (en) * | 2019-11-04 | 2020-01-17 | 华中科技大学同济医学院附属协和医院 | Pre-assembled pen type ICI injection device and operation method |
| CN111032119A (en) * | 2017-06-20 | 2020-04-17 | 瓦莱里塔斯有限公司 | Delay Mechanism of Hydraulic Medicine Delivery Device |
| CN111068149A (en) * | 2020-01-06 | 2020-04-28 | 朱小丽 | An operating method of an adjustable automatic injection device |
| CN111743780A (en) * | 2020-06-16 | 2020-10-09 | 武汉大学中南医院 | Automatic metering automatic exhaust feeding device |
| CN113952550A (en) * | 2021-11-19 | 2022-01-21 | 山东威高集团医用高分子制品股份有限公司 | Needle body protection device |
| CN114795568A (en) * | 2021-01-29 | 2022-07-29 | 安徽田园居家禽养殖有限公司 | Poultry is bred and uses vaccination protector |
-
2014
- 2014-03-06 CN CN201420100766.2U patent/CN203861697U/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104352352A (en) * | 2014-10-24 | 2015-02-18 | 苏州仁捷瑞自动化科技有限公司 | Detachable automatic suction injector |
| CN104337523B (en) * | 2014-10-24 | 2016-06-01 | 吴燕霞 | The syringe of energy auto-pumping |
| CN104352352B (en) * | 2014-10-24 | 2017-01-25 | 王秋凝 | Detachable automatic suction injector |
| CN104382738B (en) * | 2014-10-24 | 2017-02-15 | 冯伟明 | Injector capable of realizing quantitative and fast suction |
| CN104337523A (en) * | 2014-10-24 | 2015-02-11 | 苏州仁捷瑞自动化科技有限公司 | Syringe capable of pumping automatically |
| CN111032119A (en) * | 2017-06-20 | 2020-04-17 | 瓦莱里塔斯有限公司 | Delay Mechanism of Hydraulic Medicine Delivery Device |
| CN107157779A (en) * | 2017-06-28 | 2017-09-15 | 中国人民解放军总医院 | Nutrient solution pusher |
| CN107157779B (en) * | 2017-06-28 | 2023-05-02 | 中国人民解放军总医院 | Nutrient solution pusher |
| CN111032125A (en) * | 2017-07-21 | 2020-04-17 | 贝克顿迪金森法国公司 | Auxiliary injection device for injecting components contained in medical containers with less force |
| US11612694B2 (en) | 2017-07-21 | 2023-03-28 | Becton Dickinson France | Assisted injection device for injecting a composition contained in a medical container with reduced efforts |
| WO2019016346A1 (en) * | 2017-07-21 | 2019-01-24 | Becton Dickinson France | Assisted injection device for injecting a composition contained in a medical container with reduced efforts |
| JP2020527083A (en) * | 2017-07-21 | 2020-09-03 | ベクトン ディキンソン フランス | Assisted injection device for reducing labor and injecting compositions contained within medical containers |
| JP7645853B2 (en) | 2017-07-21 | 2025-03-14 | ベクトン ディキンソン フランス | Assisted injection device for injecting a composition contained in a medical container with reduced effort - Patents.com |
| JP7431153B2 (en) | 2017-07-21 | 2024-02-14 | ベクトン ディキンソン フランス | Assisted injection device for injecting compositions contained within medical containers with reduced effort |
| JP2023010763A (en) * | 2017-07-21 | 2023-01-20 | ベクトン ディキンソン フランス | Assisted injection device for injecting compositions contained within medical containers with reduced effort |
| CN108310543B (en) * | 2018-03-07 | 2020-08-04 | 庄国燕 | A syringe capable of controlling the flow rate of push liquid |
| CN108310543A (en) * | 2018-03-07 | 2018-07-24 | 梁楠 | A kind of syringe of achievable propulsive liquid flow control |
| CN109876242A (en) * | 2019-03-27 | 2019-06-14 | 河海大学常州校区 | A kind of syringe |
| CN109876242B (en) * | 2019-03-27 | 2021-03-05 | 河海大学常州校区 | Syringe |
| CN110693641A (en) * | 2019-11-04 | 2020-01-17 | 华中科技大学同济医学院附属协和医院 | Pre-assembled pen type ICI injection device and operation method |
| CN111068149A (en) * | 2020-01-06 | 2020-04-28 | 朱小丽 | An operating method of an adjustable automatic injection device |
| CN111743780A (en) * | 2020-06-16 | 2020-10-09 | 武汉大学中南医院 | Automatic metering automatic exhaust feeding device |
| CN114795568A (en) * | 2021-01-29 | 2022-07-29 | 安徽田园居家禽养殖有限公司 | Poultry is bred and uses vaccination protector |
| CN113952550A (en) * | 2021-11-19 | 2022-01-21 | 山东威高集团医用高分子制品股份有限公司 | Needle body protection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20150306 |
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| EXPY | Termination of patent right or utility model |