CN201524322U - Needle-free injector with connected medicine pipe inner rod and push rod - Google Patents
Needle-free injector with connected medicine pipe inner rod and push rod Download PDFInfo
- Publication number
- CN201524322U CN201524322U CN2009202177123U CN200920217712U CN201524322U CN 201524322 U CN201524322 U CN 201524322U CN 2009202177123 U CN2009202177123 U CN 2009202177123U CN 200920217712 U CN200920217712 U CN 200920217712U CN 201524322 U CN201524322 U CN 201524322U
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- CN
- China
- Prior art keywords
- push rod
- pencil
- medicine
- bar
- 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 - Lifetime
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Abstract
The utility model provides a needle-free injector of which the medicine pipe inner rod and the push rod can be connected with each other. The needle-free injector comprises a medicine pipe, the medicine pipe inner rod, an upper pipe, a lower pipe, a spring, and the like, and is characterized in that a lug boss is arranged at the front end of the push rod; one or more hooks are arranged at the tail part of the medicine pipe inner rod; when the push rod gets close to the hook, and force is exerted on the push rod, the lug boss can enter the hook and be combined with the hook; and when the push rod moves backwards, the medicine pipe inner rod can move with the push rod, so as to pump medicine. By using the needle-free injector with the structure, the utility model can achieve the purpose that medicine is pumped through the relative movement of the upper pipe and the lower pipe in such manner that the medicine pipe inner rod does not move when the needle-free injector is pressurized, and moves when the upper pipe and the lower pipe move relative to each other in the opposite direction. Therefore, the utility model solves the problems that external medicine pumping is unsanitary, the operation process is complex, and impact between the push rod and the medicine pipe inner rod is over large.
Description
Technical field
This utility model relates to technical field of medical instruments, belongs to bar and the attachable needleless injector of push rod in the pencil.
Background technology
Needleless injector is a kind of former in the pressurization of liquid medicine by external impetus such as springs, and makes liquid drug pass through the micropore of 0.02-0.1 millimeter with the form of high-voltage high-speed.Liquid drug can not use syringe needle to penetrate human or animal's skin and enter in the body.
If be used for the needleless injector pencil internal diameter deficiency of liquid drug at present so that push rod the time extend into pencil inside in injection, employing be bar and the isolating form of push rod in the pencil.All kinds of corrupt practices creep in for this form.At first drawing medicine must carry out before pencil is contained in syringe body, makes suction not enough health of medicine process and operating process too complicated, pollutes medicine easily.Secondly, during injection in push rod and the pencil bar have certain idle stroke, make the interior bar of pencil made of plastic be subjected to great impact and be out of shape, cause injected dose to change.
Summary of the invention
The purpose of this utility model provides the method for attachment of bar and push rod in a kind of pencil, solve inhale externally that medicine is unhygienic, push rod and the excessive problem of the interior bar impact of pencil in complicated operating process and the injection process.
For achieving the above object, this utility model adopts following design:
Bar and the attachable needleless injector of push rod in the pencil, it comprises bar, pencil, push rod, upper casing, lower casing, spring, steel ball, lock, button spring and lock ring in the pencil.Bar is arranged on pencil inside in the described pencil, the flexible body of bar front end in the pencil, and there is uncinus the rear end.The push rod front end has a boss, and the front end of boss has chamfering, and after bar and push rod in the relative pencil applied a power, the boss of push rod front end can enter in the uncinus of bar in the pencil smoothly.Bar moves in the lump in the pencil when push rod can drive when moving relative to following pipe backward.Described pencil front end has a pore.Medicine can enter into pencil inside by this pore, and when spring was given the very big power of one of push rod, push rod promoted that bar extrudes medicine in the pencil from aperture, finishes the process of injection.
Description of drawings
Fig. 1 structural representation of the present utility model
Fig. 2 is a local enlarged diagram among Fig. 1
The specific embodiment
Referring to Fig. 1, shown in Figure 2: bar and the attachable needleless injector of push rod in the pencil, it comprises bar (1) in the pencil, pencil (2), push rod (4), goes up pipe (6), manages (3), spring (6), steel ball (7), lock (10), button spring (9) and lock ring (8) down.Bar (1) is arranged on pencil (2) inside in the described pencil, the flexible body of bar front end in the pencil, and there is uncinus the rear end.Push rod (4) front end has a boss, and the front end of boss has chamfering, and after bar (1) in the relative pencil and push rod (4) applied a power, the boss of push rod (4) front end can enter in the uncinus of bar (1) in the pencil smoothly.When can driving bar in the pencil (1) relative to following pipe (3) backward when moving, push rod (4) moves in the lump.Described pencil (2) front end has a pore.Medicine can enter into pencil (2) inside by this pore, and when spring (6) was given (4) very big power of push rod, push rod (4) promoted the interior bar (1) of pencil the aperture of medicine from pencil (2) front end extruded, and finishes the process of injection.
Claims (1)
1. bar and the attachable needleless injector of push rod in the pencil, it comprises bar, pencil, push rod, upper casing, lower casing, spring, steel ball, pinning, button spring and lock ring in the pencil, rod rear end has uncinus in the described pencil, the push rod front end has a boss, the front end of boss has chamfering, after bar and push rod in the relative pencil apply a power, the boss of push rod front end can enter in the uncinus of bar in the pencil smoothly, and bar moves in the lump in the pencil when push rod can drive when moving relative to following pipe backward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202177123U CN201524322U (en) | 2009-09-28 | 2009-09-28 | Needle-free injector with connected medicine pipe inner rod and push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202177123U CN201524322U (en) | 2009-09-28 | 2009-09-28 | Needle-free injector with connected medicine pipe inner rod and push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201524322U true CN201524322U (en) | 2010-07-14 |
Family
ID=42515623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202177123U Expired - Lifetime CN201524322U (en) | 2009-09-28 | 2009-09-28 | Needle-free injector with connected medicine pipe inner rod and push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201524322U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921073A (en) * | 2012-11-02 | 2013-02-13 | 江苏丞宇米特医疗科技有限公司 | Syringe-needle-free rapid syringe for different medicinal liquids |
| CN103495241A (en) * | 2013-10-12 | 2014-01-08 | 北京快舒尔医疗技术有限公司 | Needleless injector with impacting function |
| CN106344205A (en) * | 2016-10-31 | 2017-01-25 | 湖北省国融商贸有限公司 | Needle-free high-speed jet flow injection syringe |
| EP3187214A4 (en) * | 2014-08-27 | 2018-02-14 | Beijing QS Medical Technology Co. Ltd. | Electrically powered needleless injector |
| CN111558113A (en) * | 2020-04-30 | 2020-08-21 | 北京快舒尔医疗技术有限公司 | Needleless injector body and needleless injector |
| CN111558112A (en) * | 2020-04-30 | 2020-08-21 | 北京快舒尔医疗技术有限公司 | Injection head of needleless injector, needleless injector body and needleless injector |
-
2009
- 2009-09-28 CN CN2009202177123U patent/CN201524322U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921073A (en) * | 2012-11-02 | 2013-02-13 | 江苏丞宇米特医疗科技有限公司 | Syringe-needle-free rapid syringe for different medicinal liquids |
| CN103495241A (en) * | 2013-10-12 | 2014-01-08 | 北京快舒尔医疗技术有限公司 | Needleless injector with impacting function |
| EP3187214A4 (en) * | 2014-08-27 | 2018-02-14 | Beijing QS Medical Technology Co. Ltd. | Electrically powered needleless injector |
| US11116909B2 (en) | 2014-08-27 | 2021-09-14 | Beijing Qs Medical Technology Co., Ltd. | Electrically powered needleless injector |
| CN106344205A (en) * | 2016-10-31 | 2017-01-25 | 湖北省国融商贸有限公司 | Needle-free high-speed jet flow injection syringe |
| CN111558113A (en) * | 2020-04-30 | 2020-08-21 | 北京快舒尔医疗技术有限公司 | Needleless injector body and needleless injector |
| CN111558112A (en) * | 2020-04-30 | 2020-08-21 | 北京快舒尔医疗技术有限公司 | Injection head of needleless injector, needleless injector body and needleless injector |
| CN111558112B (en) * | 2020-04-30 | 2021-09-24 | 北京快舒尔医疗技术有限公司 | Injection head of needleless injector, needleless injector body and needleless injector |
| CN111558113B (en) * | 2020-04-30 | 2021-09-24 | 北京快舒尔医疗技术有限公司 | Needleless injector body and needleless injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100714 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Kuaishuer Medical Technology Co.,Ltd. Document name: Notification of Expiration of Patent Right Duration |
|
| DD01 | Delivery of document by public notice |