CN201524321U - Safety control apparatus for needleless injector - Google Patents
Safety control apparatus for needleless injector Download PDFInfo
- Publication number
- CN201524321U CN201524321U CN2009202177119U CN200920217711U CN201524321U CN 201524321 U CN201524321 U CN 201524321U CN 2009202177119 U CN2009202177119 U CN 2009202177119U CN 200920217711 U CN200920217711 U CN 200920217711U CN 201524321 U CN201524321 U CN 201524321U
- Authority
- CN
- China
- Prior art keywords
- lock body
- spring
- pipe
- lock
- upper pipe
- 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
A safety control apparatus for needleless injector mainly comprises an upper pipe, a lower pipe, a medicament pipe, a medicament pipe inner rod, a lock ring, a lock body, a lock body spring, a steel ball, a post rod, a spring, a lock column and a push button spring. The lock body is sleeved on the upper pipe and can move vertically. The lock body spring is provided between the lower part of the lock body and the upper pipe. The lock body spring enables the inside of the lock body to be butted together with the upper pipe under the condition without exerting the external force. One part of the lock body extends to the exterior of the upper pipe and can be pushed down and spring out automatically. The utility model has characteristics of low machining cost, high reliability and long service life.
Description
Technical field
This utility model relates to technical field of medical instruments, belongs to the needleless injector safety control.
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.
When needleless injector was in emission state, it had just possessed the condition of radiant.If, can make the energy that discharges hurt the waste of human body and medicine owing to produced maloperation during offhand injection.The safety control that is used for the needleless injector of liquid drug injection at present has multiple.Substantially all be mechanical, but these safety controls all exist, processing cost height, easy ageing failure, the weakness that reliability is not high.
Summary of the invention
The purpose of this utility model provides the new safety control that is used for needleless injector, solves processing cost height, aging and low reliability problems easily.
For achieving the above object, this utility model adopts following design:
The safety control that is used for needleless injector, it mainly comprises bar, lock ring, lock body, lock body spring, steel ball, push rod, spring, lock and button spring in pipe, following pipe, pencil, the pencil.Described lock body sheath and can move up and down on last pipe.Between the following and last pipe of lock body is the lock body spring.The lock body spring the inboard that makes lock body under the situation that no external force applies with on pipe abut against.The part of lock body extends to the outside of pipe, can press and eject automatically.
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: be used for the safety control of needleless injector, it mainly comprises pipe (5), bar (1), lock ring (9), lock body (12), lock body spring (7), steel ball (8), push rod (4), spring (6), lock (11) and button spring (10) in pipe (3), pencil (2), the pencil down.Described lock body (12) is enclosed within on the pipe (5), and can move up and down.Be lock body spring (7) between the following and last pipe (5) of lock body (12).Lock body spring (7) makes the inboard of lock body (12) abut against with last pipe (5) under the situation that no external force applies.When pressing down lock body (12), lock body (12) moves down, and compresses lock body spring (7) simultaneously.Blocking the lock body (12) that lock ring (9) is moved to the left is removed, lock ring (9) can be moved to the left, steel ball (8) movement outside, originally the push rod (4) that is pinned by steel ball (8) under the effect of spring (6) to left movement, promote bar (1) motion in the pencil, finally finish injection.If not according to down lock body (12), because the effect of lock body spring (7) makes the inboard close last pipe (5) of lock body (12), lock ring (9) can't be moved, also just can't inject, thus the effect of start-up control safety.
After injection finished, lock body (12) was in the position of depressing.Rotate relatively when going up of needleless injector managed (5) and pipe (13) pressurizes needleless injector down, when the vertical groove of push rod (4) surpassed steel ball (8), steel ball (8) entered in the groove, and lock ring (9) moves right under the effect of button spring (10).The lock ring (9) that stops lock body (12) to move upward is disengaged, and lock body (12) pops up under the effect of lock body spring (7).
Claims (1)
1. the safety control that is used for needleless injector, it mainly comprises bar, lock ring, lock body, lock body spring, steel ball, push rod, spring, lock and button spring in pipe, following pipe, pencil, the pencil, described lock body sheath is on the last pipe, and can move up and down, between the following and last pipe of lock body a spring is arranged, spring the inboard that makes lock body under the situation that no external force applies with on pipe abut against, play the purpose that stops lock ring motion and emission, the part of lock body extends to the outside of pipe, can press and eject automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202177119U CN201524321U (en) | 2009-09-28 | 2009-09-28 | Safety control apparatus for needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202177119U CN201524321U (en) | 2009-09-28 | 2009-09-28 | Safety control apparatus for needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201524321U true CN201524321U (en) | 2010-07-14 |
Family
ID=42515622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202177119U Expired - Lifetime CN201524321U (en) | 2009-09-28 | 2009-09-28 | Safety control apparatus for needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201524321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399156A (en) * | 2014-12-17 | 2015-03-11 | 山东中保康医疗器具有限公司 | Mechanical and rotating medicine taking device |
-
2009
- 2009-09-28 CN CN2009202177119U patent/CN201524321U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399156A (en) * | 2014-12-17 | 2015-03-11 | 山东中保康医疗器具有限公司 | Mechanical and rotating medicine taking device |
| CN104399156B (en) * | 2014-12-17 | 2017-04-05 | 山东中保康医疗器具有限公司 | Mechanical type rotating drug taking device |
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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 |