CN2735998Y - Self-destruction injector - Google Patents
Self-destruction injector Download PDFInfo
- Publication number
- CN2735998Y CN2735998Y CN 200420037698 CN200420037698U CN2735998Y CN 2735998 Y CN2735998 Y CN 2735998Y CN 200420037698 CN200420037698 CN 200420037698 CN 200420037698 U CN200420037698 U CN 200420037698U CN 2735998 Y CN2735998 Y CN 2735998Y
- Authority
- CN
- China
- Prior art keywords
- syringe
- needle stand
- piston
- push rod
- 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 provides a self-destruction injector, comprising a syringe, a needle, a piston and a push rod. A needle stand is arranged in the internal orifice which is on the front end of the syringe, the needle stand is elastically fastened with the syringe, the needle is sheathed on the needle stand, a draw hook corresponding to the through hole of the needle stand is arranged on the front part of the piston, and the connection part of the piston and the push rod can be made to a frangible point connection structure or a thin wall connection structure. When an injection is finished, the draw hook is inserted in the through hole of the needle stand, the needle stand can be pulled away from the syringe, and the needle stand enters into the syringe; the connection part of the piston and the push rod can be broken off after the injection is finished; therefore the injector can be destructed permanently after being used; so the illegal use can be prevented.
Description
Technical field
This utility model relates to medical apparatus and instruments, particularly to the improvement of disposable syringe.
Background technology
The present disposable syringe that uses, its structure does not change after use, is utilized again by the lawless person, works the mischief.
Summary of the invention
This utility model purpose is to provide a kind of disposable syringe that damages automatically after use, prevent to utilize once more.
Scheme of the present utility model is: self-destruction syringe comprises syringe, syringe needle, piston, push rod, in the internal orifice of syringe front end, be provided with needle stand, needle stand and syringe flexible clamping, pinhead sleeve is on needle stand, the front portion of piston is provided with and the corresponding drag hook of the through hole of needle stand, and the connecting portion of piston and push rod is made broken some syndeton or thin-walled syndeton.
The utility model has the advantages that: owing to be provided with needle stand in the internal orifice of syringe front end, the front portion of piston is provided with and the corresponding drag hook of the through hole of needle stand, blocks in the through hole of drag hook insertion needle stand when injection finishes, and itself and syringe can be pulled, and enters in the syringe; In addition, the connecting portion of piston and push rod is made broken some syndeton or thin-walled syndeton, and is broken after injection finishes.By above design, syringe causes permanent breaking-up after use, has prevented illegal utilization.
Description of drawings
The utility model is described in further detail with embodiment with reference to the accompanying drawings below.
Accompanying drawing is this utility model structural representation.
1 syringe needle among the figure, 2 needle stands, 3 drag hooks, 4 pistons, 5 push rods, 6 syringes, 7 spacing fixture blocks, 8 pistons and push rod connecting portion, 9 sealing rings, 10 draw-in grooves, 11 elastic collars.
The specific embodiment
As shown in the figure, self-destruction syringe comprises syringe 6, syringe needle 1, piston 4, push rod 5, is provided with needle stand 2 in the internal orifice of syringe 6 front ends, and needle stand 2 passes through draw-in groove 10 flexible clampings with syringe 6, and syringe needle 1 is enclosed within on the needle stand 2.
The front portion of piston 4 is provided with and the corresponding drag hook 3 of the through hole of needle stand 2, is shaped on barb on the drag hook 3, and the front port of needle stand 2 is provided with elastic collar 11.
Piston 4 is made broken some syndeton or thin-walled syndeton with the connecting portion 8 of push rod 5.
6 of needle stand 2 and syringes are provided with sealing ring 9, with therebetween sealed to each other.
The rear portion of push rod 5 is provided with spacing fixture block 7.
During original state, because the rear portion of push rod 5 is provided with spacing fixture block 7, make push rod 5 spacing, the drag hook 3 on the piston 4 can't enter in the through hole of needle stand 2, avoids using preceding damage.
During use, push rod 5 retreats, and sucks liquid medicine.Injection makes, and depresses spacing fixture block 7, promotes push rod 5, realizes injection.
When injection will finish, drag hook 3 inserted in the through hole of needle stand 2, owing to be shaped on barb on the drag hook 3, the front port of needle stand 2 is provided with elastic collar 11, and this moment, drag hook 3 was stuck with needle stand 2.
At last, push rod 5 is pulled back, because needle stand 2 passes through draw-in groove 10 flexible clampings with syringe 6, this moment, needle stand 2 was pulled, enter in the syringe, because piston 4 is made broken some syndeton or thin-walled syndeton with the connecting portion 8 of push rod 5, user can fracture it simultaneously.
The draw-in groove 10 that needle stand 2 and syringe are 6 is tongue and grooves of right-angle triangle, needle stand 2 can only direction be spurred, when oppositely promoting, because the right-angle side clamping mutually of two tongue and grooves can't be released recovery after use in syringe 6.Add fractureing between upper piston 4 and the push rod 5, thereby cause permanent breaking-up, prevented illegal use.
Claims (5)
1. self-destruction syringe, comprise syringe (6), syringe needle (1), piston (4), push rod (5), it is characterized in that: in the internal orifice of syringe (6) front end, be provided with needle stand (2), needle stand (2) and syringe (6) flexible clamping, syringe needle (1) is enclosed within on the needle stand (2), and the front portion of piston (4) is provided with the corresponding drag hook of through hole (3) with needle stand (2).
2. a kind of self-destruction syringe as claimed in claim 1 is characterized in that: piston (4) is made broken some syndeton or thin-walled syndeton with the connecting portion (8) of push rod (5).
3. a kind of self-destruction syringe as claimed in claim 1 is characterized in that: the front port of needle stand (2) is provided with elastic collar (11), and drag hook is shaped on barb on (3).
4. a kind of self-destruction syringe as claimed in claim 1 is characterized in that: be provided with sealing ring (9) between needle stand (2) and syringe (6).
5. a kind of self-destruction syringe as claimed in claim 1 or 2 is characterized in that: the rear portion of push rod (5) is provided with spacing fixture block (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037698 CN2735998Y (en) | 2004-07-13 | 2004-07-13 | Self-destruction injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037698 CN2735998Y (en) | 2004-07-13 | 2004-07-13 | Self-destruction injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2735998Y true CN2735998Y (en) | 2005-10-26 |
Family
ID=35306735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420037698 Expired - Fee Related CN2735998Y (en) | 2004-07-13 | 2004-07-13 | Self-destruction injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2735998Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304776B (en) * | 2005-09-06 | 2011-12-21 | 麦迪塞弗环球控股有限公司 | Single use safety syringe having a retractable needle |
| CN105944190A (en) * | 2016-05-30 | 2016-09-21 | 浙江康德莱医疗器械股份有限公司 | Matched needle for safety insulin pen |
| CN109172140A (en) * | 2018-08-13 | 2019-01-11 | 张琦 | For the crossover connection in auripuncture, Injection in Tympanic Cavity medical device |
-
2004
- 2004-07-13 CN CN 200420037698 patent/CN2735998Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304776B (en) * | 2005-09-06 | 2011-12-21 | 麦迪塞弗环球控股有限公司 | Single use safety syringe having a retractable needle |
| CN105944190A (en) * | 2016-05-30 | 2016-09-21 | 浙江康德莱医疗器械股份有限公司 | Matched needle for safety insulin pen |
| CN109172140A (en) * | 2018-08-13 | 2019-01-11 | 张琦 | For the crossover connection in auripuncture, Injection in Tympanic Cavity medical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051026 Termination date: 20100713 |