CN2574696Y - Disposable injector with pressurized injection device - Google Patents
Disposable injector with pressurized injection device Download PDFInfo
- Publication number
- CN2574696Y CN2574696Y CN 02283056 CN02283056U CN2574696Y CN 2574696 Y CN2574696 Y CN 2574696Y CN 02283056 CN02283056 CN 02283056 CN 02283056 U CN02283056 U CN 02283056U CN 2574696 Y CN2574696 Y CN 2574696Y
- Authority
- CN
- China
- Prior art keywords
- push rod
- injection
- needle tubing
- needle tube
- injection nozzle
- 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
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an improved medicine storing syringe, which comprises a front section of a needle tube, an injecion mouth arranged at the front end of the front section of the needle tube, injection medicament arranged in an interior cavity of the front section of the needle tube, a rear section of the needle tube bonded with the rear end of the front section of the needle tube together, a push rod, a piston fixedly arranged on the front end of the push rod and a base movably sheathed and connected to the rear end of the push rod, wherein, the front end of the push rod and the rear section of the needle tube are in threaded connection, an outer port of the injection mouth is a closed port, and an annular groove of the injection mouth is arranged above the outer surface of the injection mouth. Because a sealing structure of the injection mouth on the front section of the needle tube is composed of the closed outer port of the injection mouth and the annular groove of the injection mouth arranged above the outer surface of the injection mouth for unsealing and the closed outer port of the injection mouth before unsealing has no leaky possibility at all, the utility model has the characteristics of good sealing performance, simple structure, easy processing fabrication and use.
Description
Technical field: this utility model relates to a kind of improved medical appliance, is meant a kind of improved Syringes with reservoir especially.
Background technology: the patent No. is 98202812.1, the Chinese utility model patent that name is called " Syringes with reservoir " discloses a kind ofly can work as the ordinary syringe use, can work as again simultaneously and store the multifunctional injector that injection medicament uses with container, it has successfully solved injection medicament needs the problem of packing separately, and can simplify the operation; But the problem of its existence is to be existed complex structure, be difficult to process and poorly sealed problem by the injection nozzle hermetically-sealed construction that sealing cap constituted that is threaded with injection nozzle on it.
The utility model content: the purpose of this utility model be to provide a kind of simple in structure, be easy to process and the improved Syringes with reservoir of good airproof performance.
The purpose of this utility model is to realize like this, a kind of improved Syringes with reservoir, comprise the needle tubing leading portion, be arranged on needle tubing leading portion leading section injection nozzle, be placed on injection medicament in the needle tubing leading portion internal cavities, the needle tubing back segment that bonds together with the rear end of needle tubing leading portion, push rod that front end is threaded with the needle tubing back segment, be fixedly installed on the piston of push rod front end and be actively socketed on the base of putting back-end, wherein the external port of injection nozzle is a closed port, is provided with the injection nozzle annular groove on the outer surface of injection nozzle.
Since in this utility model on the needle tubing leading portion hermetically-sealed construction of injection nozzle by the injection nozzle external port of sealing be arranged on that the injection nozzle annular groove that is used to break seal on the injection nozzle outer surface forms, what the injection nozzle external port of sealing did not take place to leak at all before unpacking may, so its good seal performance, and simple in structure, be easy to processing and manufacturing and use; Only need break off with the fingers and thumb the injection nozzle outer end of sealing disconnected along the injection nozzle annular groove during use, syringe needle is plugged on the residual injection nozzle both can then with hands.
Description of drawings: accompanying drawing is a structural representation of the present utility model
1-base 6-injection nozzle among the figure
2-container 7-injection nozzle annular groove
3-push rod 8-injection medicament
4-piston 9-needle tubing leading portion internal cavities
5-needle tubing leading portion 10-needle tubing back segment
The specific embodiment: the utility model will be further described below in conjunction with accompanying drawing, a kind of improved Syringes with reservoir, comprise needle tubing leading portion 5, be arranged on the injection nozzle 6 of needle tubing leading portion 5 leading sections, be placed on the injection medicament 8 in the needle tubing leading portion internal cavities 9, the needle tubing back segment 10 that bonds together with the rear end of needle tubing leading portion 5, the push rod 3 that front end is threaded with needle tubing back segment 10, be fixedly installed on the piston 4 and the base 1 that is actively socketed on push rod 3 rear ends of push rod 3 front ends, wherein the external port of injection nozzle 6 is a closed port, is provided with injection nozzle annular groove 7 on the outer surface of injection nozzle 6; The purpose that injection nozzle annular groove 7 is set is to make the overall construction intensity of injection nozzle 6 form a weak ring along injection nozzle annular groove 7, breaks disconnected along injection nozzle annular groove 7 places injection nozzle 6 thereby can change places with have gentle hands.
Theoretically, the material of making needle tubing leading portion 5 in this utility model can be plastics, glass, pottery, metal etc., but shows according to actual operating position, and the preferred material of making needle tubing leading portion 5 is plastics.
According to actual needs, push rod 3 can be solid push rod or hollow push rod; As shown in drawings, when push rod 3 is hollow push rod, among the cavity of push rod 3, can be used for placing container 2 or the syringe needle that the injection medicament is housed.
The injection medicament 8 that is packaged in the needle tubing leading portion internal cavities 9 can be liquid injection medicament or solid-state injection medicament; So-called solid-state injection medicament is meant the Powdered of Yi Rong or fine granularity solid injectable medicament.
Using method of the present utility model is as follows;
A. this utility model is placed in injection nozzle 6 mode up, with hands injection nozzle 6 edges are annotated then
Nozzle annular groove 7 places break off with the fingers and thumb disconnected, syringe needle are plugged on the injection that residues on the needle tubing leading portion 5 again
On the mouth 6;
B. rotate push rod 3 by hand, make push rod 3 drive the piston 4 of its end at needle tubing leading portion internal cavities
Direction to injection nozzle 6 in 9 moves, up to making push rod 3 forward external screw threads and needle tubing back segment 10
Female thread between break away from mutually, thereby make piston 4 can needle tubing leading portion internal cavities 9 it
Move freely before and after middle;
C. operating procedure thereafter is the same with ordinary syringe.
Claims (3)
1. improved Syringes with reservoir, comprise needle tubing leading portion (5), be arranged on the injection nozzle (6) of needle tubing leading portion (5) leading section, be placed on the injection medicament (8) in the needle tubing leading portion internal cavities (9), the needle tubing back segment (10) that bonds together with the rear end of needle tubing leading portion (5), the push rod (3) that front end is threaded with needle tubing back segment (10), be fixedly installed on the piston (4) of push rod (3) front end and be actively socketed on the base (1) of push rod (3) rear end, the external port that it is characterized in that injection nozzle (6) is a closed port, is provided with injection nozzle annular groove (7) on the outer surface of injection nozzle (6).
2. a kind of improved Syringes with reservoir according to claim 1 is characterized in that push rod (3) is solid push rod or hollow push rod.
3. a kind of improved Syringes with reservoir according to claim 1 is characterized in that injection medicament (8) is liquid injection medicament or solid-state injection medicament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02283056 CN2574696Y (en) | 2002-10-13 | 2002-10-13 | Disposable injector with pressurized injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02283056 CN2574696Y (en) | 2002-10-13 | 2002-10-13 | Disposable injector with pressurized injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574696Y true CN2574696Y (en) | 2003-09-24 |
Family
ID=33744992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02283056 Expired - Fee Related CN2574696Y (en) | 2002-10-13 | 2002-10-13 | Disposable injector with pressurized injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574696Y (en) |
-
2002
- 2002-10-13 CN CN 02283056 patent/CN2574696Y/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 |