CN201469815U - Auto-disable syringe - Google Patents
Auto-disable syringe Download PDFInfo
- Publication number
- CN201469815U CN201469815U CN200920225123XU CN200920225123U CN201469815U CN 201469815 U CN201469815 U CN 201469815U CN 200920225123X U CN200920225123X U CN 200920225123XU CN 200920225123 U CN200920225123 U CN 200920225123U CN 201469815 U CN201469815 U CN 201469815U
- Authority
- CN
- China
- Prior art keywords
- blade
- syringe
- piston rod
- piston
- screwed hole
- 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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Abstract
The utility model relates to an auto-disable syringe, comprising a needle cylinder, a piston and a piston rod, wherein a blade screwed hole is arranged in the middle part of the piston rod, and a blade which is vertical to the piston rod is arranged in the blade screwed hole. A cylindrical bulge is arranged at the front end of the piston, the length of the cylindrical bulge is smaller than that of a needle block at the front end of the needle cylinder, and the diameter of the cylindrical bulge is smaller than the internal diameter of the needle block at the front end of the needle cylinder. The utility model has the advantages that: the structure is simple, the syringe sucks the parenteral solution under the condition that the blade is not mounted, after the parenteral solution is sucked, the blade is screwed into the blade screwed hole on the piston rod, injection can just be carried out, after the injection is finished, the blade simultaneously destroys the side wall of the needle cylinder, so that the use function of the syringe is damaged, and the syringe can not be used completely; and because the cylindrical bulge is arranged at the front end of the piston, the parenteral solution can be prevented from being wasted to the maximum extent.
Description
Technical field:
This utility model relates to the medical apparatus and instruments of clinical use, particularly a kind of self-destruction syringe.
Background technology:
At present, syringe is a widely used apparatus in the curative activity, use wide, amount is big, in recent years along with scientific and technological progress, disposable syringe is widely used, and injection safety is played an important role.Simultaneously also there are a large amount of disposable syringes to be illegally re-used, cause malpracticees such as cross infection.For preventing that secondary from using, people increase self-desttruction equipment on disposable syringe, but present self-destruction syringe complex structure, and the self-destruction poor reliability can't thoroughly stop secondary to use.
Summary of the invention:
The purpose of this utility model is to overcome the shortcoming that exists in the prior art, provides a kind of simple in structure and can thoroughly destroy the self-destruction syringe of syringe.
To achieve these goals, this utility model provides a kind of self-destruction syringe, comprises syringe, piston and piston rod, wherein, the centre position of described piston rod is provided with the blade screwed hole, is provided with in the described blade screwed hole and the vertical blade of described piston rod.
The front end of described piston is provided with cylindrical projections, and the length of described cylindrical projections is less than the length of the needle holder of described syringe front end, and the diameter of described cylindrical projections is less than the internal diameter of the needle holder of described syringe front end.
The outstanding advantage of this utility model is: simple in structure, do not install under the situation of blade and draw injection, after drawing injection, blade is screwed in the blade screwed hole on the piston rod, inject and get final product, after injection finished, blade had destroyed the sidewall of syringe simultaneously, thereby destroyed the function of use of syringe, it thoroughly can't be used; The front end of piston is provided with cylindrical projections, can farthest avoid the waste of injection.
Description of drawings:
Fig. 1 is the overall structure front view of this utility model embodiment.
The specific embodiment:
Design agents mechanism comprised syringe 1, piston 2, piston rod 3, blade 4, blade screwed hole 5 and cylindrical projections 6 when embodiment of the present utility model implemented.Wherein, the centre position of piston rod 3 is provided with blade screwed hole 5, is provided with in the blade screwed hole 5 and piston rod 3 vertical blades 4; The front end of piston 2 is provided with cylindrical projections 6, and the length of cylindrical projections 6 is less than the length of the needle holder of syringe 1 front end, and the diameter of cylindrical projections 6 is less than the internal diameter of the needle holder of syringe 1 front end.
Claims (2)
1. a self-destruction syringe comprises syringe, piston and piston rod, it is characterized in that, the centre position of described piston rod is provided with the blade screwed hole, is provided with in the described blade screwed hole and the vertical blade of described piston rod.
2. self-destruction syringe according to claim 1, it is characterized in that, the front end of described piston is provided with cylindrical projections, and the length of described cylindrical projections is less than the length of the needle holder of described syringe front end, and the diameter of described cylindrical projections is less than the internal diameter of the needle holder of described syringe front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920225123XU CN201469815U (en) | 2009-08-25 | 2009-08-25 | Auto-disable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920225123XU CN201469815U (en) | 2009-08-25 | 2009-08-25 | Auto-disable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201469815U true CN201469815U (en) | 2010-05-19 |
Family
ID=42406053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920225123XU Expired - Fee Related CN201469815U (en) | 2009-08-25 | 2009-08-25 | Auto-disable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201469815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172957A (en) * | 2018-09-30 | 2019-01-11 | 四川大学华西医院 | Self-destructed disposable syringe |
-
2009
- 2009-08-25 CN CN200920225123XU patent/CN201469815U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172957A (en) * | 2018-09-30 | 2019-01-11 | 四川大学华西医院 | Self-destructed disposable syringe |
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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: 20100519 Termination date: 20100825 |