CN2326271Y - Self-destroyed disposable syringe - Google Patents
Self-destroyed disposable syringe Download PDFInfo
- Publication number
- CN2326271Y CN2326271Y CN 98208952 CN98208952U CN2326271Y CN 2326271 Y CN2326271 Y CN 2326271Y CN 98208952 CN98208952 CN 98208952 CN 98208952 U CN98208952 U CN 98208952U CN 2326271 Y CN2326271 Y CN 2326271Y
- Authority
- CN
- China
- Prior art keywords
- syringe
- retaining sleeve
- injection
- cylinder
- rod
- 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-destroyed disposable syringe belonging to the technical field of medical appliances, which comprises a syringe cylinder, a syringe rod and a rubber plug, wherein, the rear part of the inner cavity of the syringe cylinder is fixed with a retreat stopping cylinder, the front end of the retreat stopping cylinder forms a jaw shape, the syringe rod passes through the retreat stopping cylinder, and the tail of the syringe rod is provided with a conical shoulder. The utility model has the advantages of reasonable structure and easy use and can effectively prevent the repeated use of the syringe.
Description
This utility model relates to a kind of medical apparatus and instruments, particularly disposable syringe.
Disposable syringe is used widely at medical department at present owing to health easy to use, safe.But some user is often reused for cost saving, so just may cause the cross infection of patient's virus.Chinese patent 95224297.4 provides a kind of expansion re-use preventing once-used syringe, and it is a principle of utilizing the expansion loop water-swellable, cuts off the passage of liquid from the needle tubing to the syringe needle, and syringe is damaged automatically.But this syringe can only temporarily prevent to reuse.In case after the expansion loop drying in the syringe, syringe can continue again to use.
The purpose of this utility model provides a kind of re-use preventing once-used syringe, and it effectively prevents the syringe repeated use, really accomplishes only to use once.
The purpose of this utility model realizes by following technical proposal: this re-use preventing once-used syringe comprises the injection rod in injection tube, the injection tube inner chamber and the rubber stopper of injection rod head, a retaining sleeve is being fixed at the rear portion of injection tube inner chamber, the telescopic front end of retaining is jaw shaped, injection rod passes the retaining sleeve, and the afterbody of injection rod is provided with conical convex shoulder.When using this syringe, at first, push ahead injection rod then, make the convex shoulder of injection rod afterbody pass through the retaining sleeve, thereby finish whole injection process in the medicinal liquid suction injection tube inner chamber.Because the telescopic jaw of retaining withstands convex shoulder, make finish once-through operation after, injection rod can not withdraw from, unless damage syringe.This just guarantees the disposable worthy of the namely use of syringe.
This utility model is owing to only set up the retaining sleeve and the injection rod shape done certain improvement, and other structure and common disposable syringe are similar, and historical facts or anecdotes is executed easily, and product price remains unchanged substantially, has higher utility.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the cutaway view of the re-use preventing once-used syringe that provides of this utility model.
Fig. 2 is the telescopic sketch map of retaining.
Among the figure, 1, injection tube; 2, injection rod; 3, retaining sleeve; 4, rubber stopper; 5, convex shoulder.
As shown in the figure, this re-use preventing once-used syringe comprises injection tube (1), injection rod (2), retaining sleeve (3) and rubber stopper (4).The length of injection tube (1) is more a little longer than common disposable syringe, can not influence the drawing liquid amount of syringe after making retaining sleeve (3) be fixed in injection tube (1) inner chamber.This syringe adopts plastics to make, and the front portion of retaining sleeve (3) has some cracks, forms jaw shaped naturally.After conical convex shoulder (5) passes through retaining sleeve (1),, reach only expendable purpose because the elasticity of plastics makes retaining sleeve (1) withstand convex shoulder (5).When this syringe is used to draw blood, as long as change opposite with the direction of convex shoulder (5) retaining sleeve (3).
Claims (1)
1, a kind of re-use preventing once-used syringe, comprise the injection rod (2) in injection tube (1), injection tube (1) inner chamber and the rubber stopper (4) of injection rod (2) head, a retaining sleeve (3) is being fixed at the rear portion that it is characterized in that described injection tube (1) inner chamber, the front end of retaining sleeve (3) is jaw shaped, injection rod (2) passes retaining sleeve (3), and the afterbody of injection rod (2) is provided with conical convex shoulder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98208952 CN2326271Y (en) | 1998-04-07 | 1998-04-07 | Self-destroyed disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98208952 CN2326271Y (en) | 1998-04-07 | 1998-04-07 | Self-destroyed disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2326271Y true CN2326271Y (en) | 1999-06-30 |
Family
ID=33964500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98208952 Expired - Fee Related CN2326271Y (en) | 1998-04-07 | 1998-04-07 | Self-destroyed disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2326271Y (en) |
-
1998
- 1998-04-07 CN CN 98208952 patent/CN2326271Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |