CN2612392Y - Self-destructive disposable syringe - Google Patents
Self-destructive disposable syringe Download PDFInfo
- Publication number
- CN2612392Y CN2612392Y CN 03230085 CN03230085U CN2612392Y CN 2612392 Y CN2612392 Y CN 2612392Y CN 03230085 CN03230085 CN 03230085 CN 03230085 U CN03230085 U CN 03230085U CN 2612392 Y CN2612392 Y CN 2612392Y
- Authority
- CN
- China
- Prior art keywords
- push rod
- piston
- pin case
- self
- pillar
- 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 medical appliance for injection comprising a pin case body and a push rod, wherein, the push rod is divided into a push rod body and a piston pillar, the piston pillar is connected with the push rod body by point metal, the piston pillar is coved with a rubber piston, a top-end of the piston pillar takes a shape of cone, ring convexities are arranged on surface of the cone, the ring convexities are coordinated with concave grooves which are arranged on relevant positions of a top wall of the pin case. When in use, after liquid medicine injected, the piston pillar is pulled to a top-wall of the pin case body, a cylinder provided on the piston pillar is embedded inside a ring groove of the top-wall of the pin case body, now, the push rod is locked, if the push rod is pulled back, the point metal will be snapped, the rubber piston is left inside the pin case body, thereby, the purpose of self-damage can be achieved. The utility model is characterized in that the structure is simple, the use is convenient, safe, and the second use of the injector can be stopped thoroughly.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments of injection, particularly disposable syringe.
Existing disposable syringe is in order to prevent the generation of reuse problem, often between syringe and push rod, increase self-locking or self-desttruction equipment, after being used, they again can not reclaim use, the patent No. of applying on May 31st, 2000 as the applicant is 002343525, name is called the technical scheme of " combined self disposable sterilized syringe ", just belongs to this class.It establishes a knockdown self-locking device between outside syringe upper end and push rod, make injector to inject once after, push rod can not be transferred to.But it is comparatively complicated that said apparatus exists structure, and cost is higher relatively, locks disadvantages such as not firm.
The utility model technology contents
It is a kind of simple in structure that the purpose of this utility model is to provide, and can not reclaim the re-use preventing once-used syringe of use.
For reaching above-mentioned purpose, technical solutions of the utility model are such: it comprises needle cylindrical unit and places the intravital push rod of syringe.Wherein push rod is divided into pusher body and piston boit, be connected with a some muscle between piston boit and the pusher body, be with rubber piston on the piston boit, it is conical that the piston boit top is, match with the cylindrical shell roof, it is protruding that the trochoidal surface of piston boit is provided with circle, encloses that the set groove in relevant position matches on protruding and the cylindrical shell roof.During use, rubber piston is under pusher body promotes or spurs, by some a muscle aspiration medicinal liquid or a liquid medicine injection.When injecting liquid drug finished, to the needle cylindrical unit roof, the cylinder on the piston boit embedded in the ring recess of needle cylindrical unit roof piston boit by pushing tow; At this moment, push rod is locked, can not retract; If continue and will retract, the some muscle will be broken, pusher body and piston boit will open from, rubber piston is left in the syringe, thereby reaches the purpose of self-destruction.
This utility model compared with prior art has advantages such as simple in structure, easy to use, safe, and it has thoroughly stopped the secondary reuse of syringe.
Below in conjunction with embodiment shown in the drawings, this utility model is described in further detail.
Description of drawings
Fig. 1 is that this utility model is injected the structure cut-away view when finishing.
Fig. 2 is the structure cut-away view of Fig. 1 when breaking a some muscle.
Fig. 3 is the enlarged diagram of Figure 1A portion.
Fig. 4 is the enlarged diagram of Fig. 2 B portion.
Among the figure: 1 needle cylindrical unit, 2 push rods, the 2-1 pusher body, the 2-2 piston boit, 3 rubber pistons, 4 muscle, the 2-2a circle is protruding, the 1a ring recess.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, re-use preventing once-used syringe comprises needle cylindrical unit 1, push rod 2; Push rod 2 is made of with the some muscle 4 more than two or two that is connected them pusher body 2-1, piston boit 2-2, is with rubber piston 3 on the piston boit 2-2, its outer surface and close joining of needle cylindrical unit 1 inwall.The cone shape that matches with needle cylindrical unit 1 roof is made at the top of piston boit 2-2, is provided with the protruding 2-2a of circle on conical lower surface, also has ring recess 1a in pin copper body 1 roof relevant position, and ring recess 1a matches with the protruding 2-2a of circle.When piston boit 2-2 is pulled to needle cylindrical unit 1 roof, and when the protruding 2-2a embedding of the circle on it ring recess 1a goes up, piston boit 2-2 and rubber piston 3 can not be pulled, be to pull at, also can only be some muscle 4 disconnections between pusher body 2-1 and the piston boit 2-2, thereby reach the purpose that disposable syringe uses the back self-destruction.
Claims (1)
1, a kind of disposable syringes of self-destroying, it is by needle cylindrical unit (1) and place the push rod (2) in the needle cylindrical unit (1) to form, it is characterized in that: push rod (2) is divided into pusher body (2-1) and piston boit (2-2), be connected for a some muscle (4) between piston boit (2-2) and the pusher body (2-1), be with rubber piston (3) on the piston boit (2-2), the taper shape that matches with cylindrical shell (1) roof is made on piston boit (2-2) top, trochoidal surface is provided with circle protruding (2-2a), and the ring recess (1a) set with needle cylindrical unit (1) roof relevant position matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230085 CN2612392Y (en) | 2003-04-07 | 2003-04-07 | Self-destructive disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230085 CN2612392Y (en) | 2003-04-07 | 2003-04-07 | Self-destructive disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612392Y true CN2612392Y (en) | 2004-04-21 |
Family
ID=34165169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03230085 Expired - Fee Related CN2612392Y (en) | 2003-04-07 | 2003-04-07 | Self-destructive disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2612392Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804228A (en) * | 2010-04-02 | 2010-08-18 | 柏保东 | Self-destruction injector |
-
2003
- 2003-04-07 CN CN 03230085 patent/CN2612392Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804228A (en) * | 2010-04-02 | 2010-08-18 | 柏保东 | Self-destruction injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Yusheng Medical Device Co., Ltd. Assignor: Qian Yunzhou Contract fulfillment period: 2005.1.10 to 2014.4.21 Contract record no.: 2008330002150 Denomination of utility model: Self-destructive disposable syringe Granted publication date: 20040421 License type: Exclusive license Record date: 20081119 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2005.1.10 TO 2014.4.21; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE YUSHENG MEDICAL TREATMENT EQUIPM Effective date: 20081119 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040421 Termination date: 20120407 |