CN201105070Y - Self-damaging injector - Google Patents
Self-damaging injector Download PDFInfo
- Publication number
- CN201105070Y CN201105070Y CNU2007200265879U CN200720026587U CN201105070Y CN 201105070 Y CN201105070 Y CN 201105070Y CN U2007200265879 U CNU2007200265879 U CN U2007200265879U CN 200720026587 U CN200720026587 U CN 200720026587U CN 201105070 Y CN201105070 Y CN 201105070Y
- Authority
- CN
- China
- Prior art keywords
- self
- snap ring
- platform
- damaging
- damping
- 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 self-damaging injector, comprising a needle head, a needle sleeve, a piston and a core rod, the needle head is arranged on the needle head base at the front end of the sleeve. The utility model is characterized in that: a positioning slot is arranged at the back end of the sleeve, and a clasp is arranged in the positioning slot. A damping claw is arranged at the front end of the clasp, and two triangle bosses are arranged at the back end of the clasp. A limit damping table is arranged on the core rod, and a round platform is arranged at the back end. A crash-protected sheet is arranged between the limit damping table and the round platform, and a dangerous interface is arranged between the round platform and the handle. The self-damaging injector has the advantages of simple structure, convenient and steady use, good retarding performance and self-damaging after using once.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, specifically a kind of self-destruction syringe.
Background technology
At present, well-known, syringe is a kind of medical apparatus commonly used, and it generally comprises syringe needle, overcoat, piston, push rod, and in order to prevent cross infection, disposable use more and more is subject to people's attention.But present widely used disposable syringe belongs to managerial notion, is not real " disposable " on the serviceability, can repeated multiple times use, and this just leaves hidden danger to cross infection, easily causes pathophoresis.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of simple structure, easy to use, stable, retaining dependable performance, self-destruction syringe that security performance is good are provided.
The technical scheme that its technical problem that solves this utility model adopts is: overcoat has tapering in the rear end, locating slot is arranged inward, snap ring is contained in the locating slot, the snap ring front end is provided with the damping pawl, the rear end is provided with the twice triangle boss, snap ring is an integral body, core bar is provided with the limit damping platform, be provided with circular platform behind the damping platform, the circular platform diameter is identical with the snap ring internal diameter, have between circular platform and the limit damping platform and prevent ruining sheet, be provided with dangerous interface between circular platform and the handle, injection finishes, limit damping platform on the damping pawl locking core bar, core bar is locked in the overcoat, circular platform is locked in the overcoat rear end, core bar not only can not pull but also can not double swerve, core bar is fractureed at the interface from danger, reach the purpose of self-destruction.
The beneficial effects of the utility model are: simple structure, easy to use, stable, security performance is good.
Description of drawings
Below in conjunction with accompanying drawing this utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of this utility model snap ring.
Fig. 3 is the longitudinal profile sketch map of this utility model snap ring.
1. syringe needles among the figure, 2. piston, 3. core bar, 4. overcoat, 5 damping pawls, 6. locating slot, 7. damping platform, the 8. anti-sheet of ruining, 9. circular platform, 10. dangerous interface, 11. handles, 12. snap rings, 13. snap ring boss.
The specific embodiment:
As can be seen from Figure 1, this utility model overcoat 4 rear ends are provided with locating slot 6, snap ring 12 is contained in the overcoat 4 rear end locating slots 6, injection finishes, and limit damping platform 7 is crossed damping pawl 5, and damping pawl 5 just in time is fastened on limit damping platform 7 rear ends and limit damping platform 7 cooperates locking core bar 3, circular platform 9 on the core bar 3 is just in time sealed the mouth of snap ring 12, it not only can not pull but also can not double swerve, core bar 3 is fractureed from dangerous interface 10, reach the purpose of self-destruction.
Claims (2)
1. self-destruction syringe, it comprises syringe needle, overcoat, piston and core bar, it is characterized in that: there is locating slot the overcoat rear end, snap ring is housed in the locating slot, and the snap ring front end is provided with the damping pawl, and there is the twice triangle boss rear end, core bar is provided with the limit damping platform, there is circular platform the rear end, has between circular platform and the limit damping platform to prevent ruining sheet, is provided with dangerous interface between circular platform and the handle.
2. self-destruction syringe according to claim 1 is characterized in that: snap ring is an integral body, and the circular platform diameter is identical with the snap ring internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200265879U CN201105070Y (en) | 2007-08-14 | 2007-08-14 | Self-damaging injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200265879U CN201105070Y (en) | 2007-08-14 | 2007-08-14 | Self-damaging injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201105070Y true CN201105070Y (en) | 2008-08-27 |
Family
ID=39956854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200265879U Expired - Fee Related CN201105070Y (en) | 2007-08-14 | 2007-08-14 | Self-damaging injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201105070Y (en) |
-
2007
- 2007-08-14 CN CNU2007200265879U patent/CN201105070Y/en not_active Expired - Fee Related
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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: 20080827 Termination date: 20090914 |