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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- CN
- China
- Prior art keywords
- piston rod
- syringe
- lock pin
- needle cylinder
- needle
- Prior art date
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an automatic injector comprising a needle cylinder and a syringe needle arranged at the front end of the needle cylinder, the needle cylinder is internally provided with a piston rod, a piston is arranged at the front end of the piston rod, an auxiliary cylinder is arranged on the outer wall of the needle cylinder and is internally provided with a pushing board, a spring is arranged on the reverse side of the pushing board, the pushing board is provided with a pushing rod, the pushing rod is connected with the piston rod through a linkage mechanism, a lock pin is arranged close to the top end of the needle cylinder, a lock hole is formed in the piston rod, and the lock pin penetrates through the wall of the needle cylinder and is in matched connection with the lock hole. Before the injector is used, liquid medicine is prepared well inside the needle cylinder, the spring inside the auxiliary cylinder is in a compressed state, and the lock pin is inserted into the lock hole; when injection is carried out, the syringe needle stabs into the injection position, a person shifts the lock pin with a finger, the lock pin slides out from the lock hole, the pushing rod drives the piston rod to slowly and evenly advance under the action of elasticity of the compressed spring, automatic injection is achieved, labor is saved, and the injection efficiency is improved.
Description
Technical field
This utility model relates to technical field of medical instruments, relates in particular to a kind of automatic injector.
Background technology
Syringe is widely used in medical institutions as conventional medical apparatus and instruments.At present, the syringe that used clinically mainly consists of syringe needle, syringe, push rod and piston, when injecting to patient, need to promote push rod medicinal liquid is released, and operation extremely bothers, wastes time and energy like this, to nursing staff, has increased work difficulty.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of syringe that can automatically release medicinal liquid when injecting to patient.
This utility model addresses the above problem by following technological means: a kind of automatic injector, comprise syringe and the syringe needle that is arranged on syringe front end, in described syringe, be provided with piston rod, described piston rod front end is provided with piston, on described syringe outer wall, be provided with secondary cylinder, in described secondary cylinder, be provided with push pedal, the push pedal back side is provided with spring, in described push pedal, be provided with push rod, described push rod is connected with piston rod by interlinked mechanism, near syringe top end, be provided with lock pin, on described piston rod, be provided with lockhole, lock pin is connected with lockhole coupling through needle cylinder wall.
Further, described secondary cylinder inwall is provided with friction plate, and the roughness of described friction plate reduces gradually along injection direction.
Further, described interlinked mechanism comprises intermeshing pinion, middle gear and gear wheel, is provided with the sawtooth I meshing with pinion on described push rod, is provided with the sawtooth II with gear wheel engagement on described piston rod.
The beneficial effects of the utility model: automatic injector of the present utility model, comprise syringe and the syringe needle that is arranged on syringe front end, in described syringe, be provided with piston rod, described piston rod front end is provided with piston, on described syringe outer wall, be provided with secondary cylinder, in described secondary cylinder, be provided with push pedal, the push pedal back side is provided with spring, in described push pedal, be provided with push rod, described push rod is connected with piston rod by interlinked mechanism, near syringe top end, be provided with lock pin, on described piston rod, be provided with lockhole, lock pin is connected with lockhole coupling through needle cylinder wall, syringe is before being used, in syringe, prepared medicinal liquid, spring in secondary cylinder is in compressive state, lock pin inserts in lockhole, during injection, syringe needle is thrust to injection position, finger is stirred lock pin, lock pin skids off in lockhole, under the effect of Compress Spring elastic force, push rod drives piston rod slowly evenly to advance, realize automatic injection, saved manpower, improved injection efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further described.
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below with reference to accompanying drawing, this utility model is elaborated, as shown in the figure: this automatic injector, comprise syringe 1 and the syringe needle 2 that is arranged on syringe front end, in described syringe, be provided with piston rod 3, described piston rod front end is provided with piston 4, on described syringe outer wall, be provided with secondary cylinder 5, in described secondary cylinder, be provided with push pedal 6, the push pedal back side is provided with spring 7, in described push pedal, be provided with push rod 8, described push rod is connected with piston rod by interlinked mechanism, near syringe top end, be provided with lock pin 9, on described piston rod, be provided with lockhole 10, lock pin is connected with lockhole coupling through needle cylinder wall, syringe is before being used, in syringe, prepared medicinal liquid, spring in secondary cylinder is in compressive state, lock pin inserts in lockhole, during injection, syringe needle is thrust to injection position, finger is stirred lock pin, lock pin skids off in lockhole, under the effect of Compress Spring elastic force, push rod drives piston rod slowly evenly to advance, realize automatic injection, saved manpower, improved injection efficiency.
Further improvement as technique scheme, described secondary cylinder inwall is provided with friction plate 11, the roughness of described friction plate reduces gradually along injection direction, friction plate can slow down the fltting speed of push rod in injection process, its roughness reduces gradually along injection direction simultaneously, and the frictional force between push pedal and friction plate also reduces gradually, reduces and adapts gradually with the elastic force of injection progradation medi-spring, make to inject progradation milder, it is even that speed is tending towards.
Further improvement as technique scheme, described interlinked mechanism comprises intermeshing pinion 12, middle gear 13 and gear wheel 14, on described push rod 8, be provided with the sawtooth I with pinion 12 engagements, on described piston rod 3, be provided with the sawtooth II with gear wheel 14 engagements, the mode of taking push rod to drive pinion, pinion to drive middle gear, middle gear to drive gear wheel, gear wheel to drive again piston rod injection to advance, can obtain lower, more steadily, the speed that advances more uniformly, realize the slowly object of injection of automatic fine.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although this utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. an automatic injector, it is characterized in that: comprise syringe (1) and be arranged on the syringe needle (2) of syringe front end, in described syringe, be provided with piston rod (3), described piston rod front end is provided with piston (4), it is characterized in that: on described syringe outer wall, be provided with secondary cylinder (5), in described secondary cylinder, be provided with push pedal (6), the push pedal back side is provided with spring (7), in described push pedal, be provided with push rod (8), described push rod is connected with piston rod by interlinked mechanism, near syringe top end, be provided with lock pin (9), on described piston rod, be provided with lockhole (10), lock pin is connected with lockhole coupling through needle cylinder wall.
2. automatic injector according to claim 1, is characterized in that: described secondary cylinder inwall is provided with friction plate (11), and the roughness of described friction plate reduces gradually along injection direction.
3. automatic injector according to claim 2, it is characterized in that: described interlinked mechanism comprises intermeshing pinion (12), middle gear (13) and gear wheel (14), on described push rod (8), be provided with the sawtooth I meshing with pinion (12), on described piston rod (3), be provided with the sawtooth II with gear wheel (14) engagement.
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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203861697U true CN203861697U (en) | 2014-10-08 |
Family
ID=51642690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100766.2U Expired - Fee Related CN203861697U (en) | 2014-03-06 | 2014-03-06 | Automatic injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203861697U (en) |
Cited By (12)
| 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 | Time delay mechanism of hydraulic medicament delivery device |
| CN111743780A (en) * | 2020-06-16 | 2020-10-09 | 武汉大学中南医院 | Automatic metering and automatic exhausting food filling 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 (21)
| 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 | Time delay mechanism of hydraulic medicament 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 |
| 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 |
| 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 |
| 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 |
| CN111032125A (en) * | 2017-07-21 | 2020-04-17 | 贝克顿迪金森法国公司 | Auxiliary injection device for injecting a component contained in a medical container with a low 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 |
| CN108310543A (en) * | 2018-03-07 | 2018-07-24 | 梁楠 | A kind of syringe of achievable propulsive liquid flow control |
| CN108310543B (en) * | 2018-03-07 | 2020-08-04 | 庄国燕 | Injector capable of realizing control of flow rate of push liquid |
| CN109876242B (en) * | 2019-03-27 | 2021-03-05 | 河海大学常州校区 | Syringe |
| 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 |
| CN111743780A (en) * | 2020-06-16 | 2020-10-09 | 武汉大学中南医院 | Automatic metering and automatic exhausting food filling 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| EXPY | Termination of patent right or utility model |