CN2744359Y - Self-destruction injector - Google Patents
Self-destruction injector Download PDFInfo
- Publication number
- CN2744359Y CN2744359Y CN 200420109618 CN200420109618U CN2744359Y CN 2744359 Y CN2744359 Y CN 2744359Y CN 200420109618 CN200420109618 CN 200420109618 CN 200420109618 U CN200420109618 U CN 200420109618U CN 2744359 Y CN2744359 Y CN 2744359Y
- Authority
- CN
- China
- Prior art keywords
- piston
- syringe
- push rod
- clog
- syndeton
- 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
Links
Abstract
The utility model provides a self-destruction injector, comprising a syringe, a piston and a push rod. The front end of the piston is provided with a clog, and the clog is provided with a barb; the inner wall of the injection orifice on the front end of the syringe is provided with a corresponding barb slot, and the connection part of the clog and the piston has a plugging connection structure or a thin wall connection structure; the push rod which is easily broken off has a point connection structure or a thin wall connection structure. When an injection is finished, the clog clogs the injection orifice of the syringe, the clog is tightly fastened by the barb, the clog is pulled away from the piston, and the push rod is broken off finally; so the injector is permanently destructed after being used, and the illegal use can be prevented thereby.
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, piston, push rod, front end at piston is provided with obstruction, be shaped on agnail in the obstruction, the inwall of syringe front end injection orifice is shaped on corresponding agnail groove, obstruction patches syndeton or thin-walled syndeton with the connecting portion employing of piston, push rod is made easily broken type, adopts some syndeton or thin-walled syndeton.
The utility model has the advantages that: because the front end of piston is provided with obstruction, when injection finishes, block the injection orifice of syringe, and by agnail that it is stuck; Owing to stop up, the syndeton easy fracture between the piston, come off, push rod can be pulled out after the injection, make to stop up and break with piston, at last push rod is fractureed, make syringe after use, cause permanent breaking-up, 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 among the figure, 2 stop up, 3 pistons, 4 push rods, 5 spacing fixture blocks, wherein 1-1 is the injection orifice of syringe.
The specific embodiment
As shown in the figure, self-destruction syringe comprises syringe 1, piston 3, push rod 4, is provided with at the front end of piston 3 and stops up 2, stops up on 2 and is shaped on agnail, and the inwall of the injection orifice 1-1 of syringe 1 front end is shaped on corresponding agnail groove.
Obstruction 2 patches syndeton or thin-walled syndeton with the connecting portion employing of piston 3, and present embodiment adopts and patches connection, promptly patches by connecting falcon and hole, makes it to be easy to pull when stressed.
Push rod 4 is made easily broken type, adopts some syndeton or thin-walled syndeton, makes it to be easy to fracture when stressed.
The rear portion of push rod 4 is provided with spacing fixture block 5.
During original state, because the rear portion of push rod 4 is provided with spacing fixture block 5, make push rod 4 spacing, the obstruction 2 on the piston 3 can't enter among the injection orifice 1-1, avoids using preceding damage.
During use, push rod 4 retreats, and sucks liquid medicine.During injection, depress spacing fixture block 5, promote push rod 4, realize injection.
When injection will finish, stop up 2 and insert among the injection orifice 1-1 of syringes 1 front end, be shaped on agnail owing to stop up on 2, the inwall of injection orifice 1-1 is shaped on corresponding agnail groove, stops up this moment 2 stuck with syringe 1.
At last, push rod 4 is pulled back, adopt with the connecting portion of piston 3 and to patch syndeton or thin-walled syndeton, stop up 2 this moment and drawn back with piston 3 and to come off owing to stop up 2; Because push rod 4 is made easily broken type, adopt some syndeton or thin-walled syndeton, after pulling out push rod 4, it can be fractureed.
By above design, make syringe after once using, promptly cause permanent breaking-up, prevented illegal use.
Claims (1)
- A kind of self-destruction syringe, comprise syringe (1), piston (3), push rod (4), front end at piston (3) is provided with obstruction (2), stop up on (2) and be shaped on agnail, the inwall of the injection orifice (1-1) of syringe (1) front end is shaped on corresponding agnail groove, the connecting portion that stops up (2) and piston (3) adopts and patches syndeton or thin-walled syndeton, and push rod (4) is made easily broken type, adopts some syndeton or thin-walled syndeton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109618 CN2744359Y (en) | 2004-11-08 | 2004-11-08 | Self-destruction injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109618 CN2744359Y (en) | 2004-11-08 | 2004-11-08 | Self-destruction injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744359Y true CN2744359Y (en) | 2005-12-07 |
Family
ID=35579146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109618 Expired - Fee Related CN2744359Y (en) | 2004-11-08 | 2004-11-08 | Self-destruction injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744359Y (en) |
-
2004
- 2004-11-08 CN CN 200420109618 patent/CN2744359Y/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: 20051207 Termination date: 20091208 |