CN2587430Y - Disposable self-destroyed syringe - Google Patents
Disposable self-destroyed syringe Download PDFInfo
- Publication number
- CN2587430Y CN2587430Y CN 02260230 CN02260230U CN2587430Y CN 2587430 Y CN2587430 Y CN 2587430Y CN 02260230 CN02260230 CN 02260230 CN 02260230 U CN02260230 U CN 02260230U CN 2587430 Y CN2587430 Y CN 2587430Y
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- CN
- China
- Prior art keywords
- self
- push rod
- head
- destroying
- destruction
- 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 relates to a disposable self-destroying syringe which comprises a needle cylinder and a push rod, wherein an inner convex ring is arranged on the inner face of a necking of the head of the needle cylinder. The front end of the push rod is provided with a self-destroying head device divided into the upper part of a self-destroying head and the lower part of the self-destroying head, the upper part of a self-destroying head is in the shape of forward extended oblate, the middle is provided with a branching opening, and the upper part of a self-destroying head is provided with two convex wings. The lower part of the self-destroying head is in the shape of cylinder, and the surface is provided with more than two convex rings matched with a rubber sealing ring. The lower bottom surface of the lower part of the self-destroying head is connected with a fixed head of the rubber sealing ring on a fixing rod of the push rod, and the connecting position is a point which is easy to break off. The fixed head of the rubber sealing ring of the push rod is in the shape of taper, and the side of the fixed head of the rubber sealing ring is provided with an air leakage slot extending to the front end of a rod body of the push rod from the point which is easy to break off. When the push rod is drawn out after injection is finished by the utility model, the convex wings at the front end of the push rod are clamped by the inner convex ring at the head of the needle cylinder. When the push rod is pulled back forcibly, the point which is easy to break off is broken off, and thus, the self-destroying function is completed. The utility model has the advantages of artful design, reasonable structure, simple manufacturing technique and easy use. A disposable syringe can be effectively prevented from being reused, and a patient's sanitation and safety requirements are ensured, and the patient needs the injection.
Description
Background technology
This utility model relates to syringe, particularly a kind of disposable self-destruction syringe.
Background technology
Though present widely used disposable syringe clearly is defined as disposable use, can not be strictly on guard against the unclean use of secondary owing to its structural constraint, therefore exist because of reusing the hidden danger of the adverse consequences of bringing.
Although several reusable syringes that prevent are arranged, by its structure parts such as piston, steam leak-off valve and ratchet mainly are housed are set, can play the reusable effect that prevents, technology is comparatively complicated in manufacture process, can not be applied widely.
Summary of the invention
Task of the present utility model provides a kind of improved disposable self-destruction syringe, and it has solved existing disposable syringe can not be strictly on guard against the unclean use of secondary, and the existing anti-syringe manufacturing process complicated problems of reusing.
The technical solution of the utility model is as follows:
A kind of disposable self-destruction syringe, it comprises syringe and push rod, the reducing inner face of described syringe head is provided with the convex circle; Described push rod front end is provided with the self-destruction head unit that is divided into a self-destruction top and a self-destruction bottom, a self-destruction top is the oblate shape of extending forward, one slit port is arranged in the middle of it, a self-destruction top is provided with two protruding wings, a self-destruction bottom is cylindrical shape, its surface is provided with cooperate with rubber seal two with upper convex ring, and the bottom surface of a self-destruction bottom is connected with rubber seal fixing head on the fixed bar of push rod, and this junction is a breakpoint easy to break; It is conical that the rubber seal fixing head of described push rod is, and at the side of rubber seal fixing head one groove that loses heart arranged, and this disappointing groove extends to the push rod lever front end from breakpoint easy to break by fixed bar.
This utility model is skillfully constructed, and is rational in infrastructure, and manufacturing process is simple, easy to use, can prevent the disposable syringe repeated use effectively, need to have guaranteed injection patient's healthy requirement.
Description of drawings
Accompanying drawing is the structural representation of a kind of disposable self-destruction syringe of the present utility model.
b
Referring to accompanying drawing, a kind of disposable self-destruction syringe of the present utility model is equipped with syringe 1 and push rod 2, the reducing inner face of syringe 1 head 11 is provided with convex circle 3, and push rod 2 front ends are provided with the self-destruction head unit, and the self-destruction head unit is divided into 5 two parts in a self-destruction top 4 and a self-destruction bottom.
A self-destruction top 4 is the oblate shape of extending forward, and a slit port 7 is arranged in the middle of it.A self-destruction top 4 is provided with two protruding wings 6.A self-destruction bottom 5 is cylindrical shape, and its surface is provided with three protruding circles 9, and two protruding circles 9 or four protruding circles 9 also can be set, and protruding circle 9 is set can closely cooperate installation with rubber seal 8, lose heart during anti-throw-out lever 2 suctions and when injecting medicinal liquid flow backwards.Push rod 2 is connected with fixed bar 10, and rubber seal fixing head 31 is arranged on the fixed bar 10.The bottom surface of a self-destruction bottom 5 is connected with rubber seal fixing head 31 on the fixed bar 10 of push rod 2, and this junction is a breakpoint 33 easy to break.
The outside dimension of a self-destruction top 4 protruding wings 6 of push rod 2 front ends is slightly larger than the internal diameter size of the convex circle 3 of syringe head 11, so that the protruding wing 6 on push rod 2 a front end self-destruction top 4 can not be extracted after pushing syringe head 11 convex circles 3 backward.
It is conical that the rubber seal fixing head 31 of push rod 2 is, and this taper shape rubber seal fixing head 31 can closely be equipped with rubber seal 8 equally.Side in rubber seal fixing head 31 has a disappointing groove 32, and this disappointing groove 32 extends to push rod lever front end 34 from breakpoint 33 easy to break by fixed bar 10.Because syringe is after using for the first time, this breakpoint 33 easy to break is fractureed, when using for the second time, disappointing groove 32 in the rubber seal fixing head 31 will leak gas, make that the air-tight state of syringe 1 chamber 12 is broken, medicinal liquid can not suck or extrude once more, and syringe is scrapped at this point.
Work process of the present utility model is as follows:
When syringe 1 sucked medicinal liquid, propelling push rod 2, the protruding wing 6 on push rod 2 a front end self-destruction top 4 just pushed in the syringe head 11 convex circles 3 like a cork, and it can make push rod injection thrust play the effect that slows down, thereby has reduced patient's misery.In addition, the protruding wing 6 on a self-destruction top 4 pushes in the syringe head 11 convex circles 3, has both played the effect of bayonet socket, has also played the effect that reduces residual liquid amount in the syringe.
After syringe is finished injection smoothly, when push rod 2 was extracted, because the protruding wing 6 sizes on push rod 2 a front end self-destruction top 4 are slightly larger than the internal diameter size of syringe head 11 convex circles 3, convex circle 3 had blocked the protruding wing 6, formed the state of desiring not pull out, so injection needle can only and then can not go out.When push rod 2 is firmly pulled back, rubber seal fixing head 31 on the fixed bar 10 is just fractureed with the breakpoint easy to break that a self-destruction bottom 5 bottom surfaces are connected, finished self-destroying function thus, the part of push rod 2 front ends is stuck in the chamber 13 of syringe head 11, and another part is then broken in barrel chamber 12.
If in the time of will reusing this syringe, the disappointing groove 32 in the rubber seal fixing head 31 of push rod 2 front ends will leak gas, medicinal liquid can not suck or extrude once more, so this syringe just can not reuse.
Claims (1)
1. disposable self-destruction syringe, it comprises syringe and push rod, it is characterized in that, the reducing inner face of described syringe (1) head (11) is provided with convex circle (3); Described push rod (2) front end is provided with the self-destruction head unit that is divided into a self-destruction top (4) and a self-destruction bottom (5), a self-destruction top (4) is the oblate shape of extending forward, one slit port (7) is arranged in the middle of it, a self-destruction top (4) is provided with two protruding wings (6), a self-destruction bottom (5) is cylindrical shape, its surface is provided with cooperate with rubber seal (8) two with upper convex ring (9), rubber seal fixing head (31) on the fixed bar (10) of the bottom surface of a self-destruction bottom (5) and push rod (2) is connected, and this junction is breakpoint easy to break (33); It is conical that the rubber seal fixing head (31) of described push rod (2) is, and at the side of rubber seal fixing head (31) groove (32) that loses heart arranged, and this disappointing groove (32) extends to push rod lever front end (34) from breakpoint easy to break (33) by fixed bar (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260230 CN2587430Y (en) | 2002-09-25 | 2002-09-25 | Disposable self-destroyed syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260230 CN2587430Y (en) | 2002-09-25 | 2002-09-25 | Disposable self-destroyed syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2587430Y true CN2587430Y (en) | 2003-11-26 |
Family
ID=33727336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02260230 Expired - Fee Related CN2587430Y (en) | 2002-09-25 | 2002-09-25 | Disposable self-destroyed syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2587430Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485766A (en) * | 2017-09-20 | 2017-12-19 | 安徽名之工业设计有限公司 | A kind of disposable syringe |
-
2002
- 2002-09-25 CN CN 02260230 patent/CN2587430Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485766A (en) * | 2017-09-20 | 2017-12-19 | 安徽名之工业设计有限公司 | A kind of disposable syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA HUAYUAN LIVING INDUSTRY CO., LTD. Free format text: FORMER OWNER: CHINA HUAYUAN GROUP CO., LTD. Effective date: 20050520 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050520 Address after: 200063 room 1958, No. 2408, Shanghai, Zhongshan North Road Patentee after: China Huayuan Life Industry Co Ltd Address before: 200063 room 1958, Huayuan Plaza, Huayuan, 2418, Shanghai, Zhongshan North Road Patentee before: China Huayuan Group Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |