CN201164635Y - Improved safe self-destructing injection syringe - Google Patents
Improved safe self-destructing injection syringe Download PDFInfo
- Publication number
- CN201164635Y CN201164635Y CNU2008200838343U CN200820083834U CN201164635Y CN 201164635 Y CN201164635 Y CN 201164635Y CN U2008200838343 U CNU2008200838343 U CN U2008200838343U CN 200820083834 U CN200820083834 U CN 200820083834U CN 201164635 Y CN201164635 Y CN 201164635Y
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- CN
- China
- Prior art keywords
- syringe
- ring
- sealing ring
- obturating ring
- push 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 provides a safe self-destruction injector with simple assembly procedure, mould development cost reduction, and good sealing performance. The safe self-destruction injector comprises a syringe, a push rod arranged in the syringe, and a rubber plug arranged at the front end of the push rod, wherein, the front end of the syringe is provided with a needle stand which comprises a conical seat and a support ring; an annular obturating ring is arranged between the inner wall of the front end of the syringe and the outer circular of the conical seat; the annular obturating ring and the syringe are injected into a whole. Because the annular obturating ring is arranged between the inner wall of the front end of the syringe and the outer circular of the conical seat, on the one hand, only one obturating ring is needed, the number of the obturating ring and the cost is reduced, the installation procedure of the obturating ring is simplified; on the other hand, the annular obturating ring and the syringe are injected into a whole, the sealing performance of the injector is greatly strengthened, and the injector is leakproof under positive high pressure or negative high pressure when being used for injecting or drawing liquid.
Description
Technical field
This utility model relates to medical apparatus and instruments, particularly a kind of disposable self-destruction syringe.
Background technology
Disposable syringe is the most frequently used medical apparatus and instruments of medical department, Chinese patent (the patent No.: 200520068572.x) disclose a kind of safety self-destructing syringe, this syringe comprises hollow barrel, be installed in the push rod in the syringe and be installed in the plug of described push rod front end, the syringe front end is equipped with needle stand, needle stand comprises awl seat and bracing ring, and a plurality of " 0 " type cushion rubber is installed between awl seat body cylindrical and the syringe.The shortcoming of this syringe: in order to guarantee the sealing without leakage between needle stand and the syringe, a plurality of " 0 " type cushion rubber will be installed between the awl seat cylindrical of needle stand and syringe inwall, increased installation procedure so on the one hand, increased the mould development cost, leaked easily when syringe is subjected to positive high voltage or negative high voltage when injection or drawing liquid on the other hand.
Summary of the invention
Technical problem to be solved in the utility model is: the safety self-destructing syringe that a kind of installation procedure is simple, reduce mould development cost, good seal performance is provided.
In order to solve the problems of the technologies described above, this utility model is by the following technical solutions: a kind of improved safety self-destructing syringe, comprise syringe, be installed in the push rod in the syringe and be installed in the plug of push rod front end, the syringe front end is equipped with needle stand, needle stand comprises awl seat and bracing ring, it is characterized in that: be provided with a ring-like sealing ring between described syringe front inner wall and awl seat cylindrical, described ring-like sealing ring and syringe are injection molded into one.
By above technical scheme as can be known: owing to be provided with a ring-like sealing ring between syringe front inner wall and awl seat cylindrical, sealing ring need not a plurality of on the one hand, only need one just, reduced the number of sealing ring, reduce cost, simplified the operation that sealing ring is installed, be injection molded into one because of ring-like sealing ring and syringe on the other hand, the sealing property of syringe is strengthened greatly, keep not leaking when when injection or drawing liquid, being subjected to positive high voltage or negative high voltage.
In order to solve the problems of the technologies described above, this utility model adopts following further technical scheme:
Described syringe front inner wall is provided with a circle groove, and described sealing ring is provided with the bead that a circle matches with this groove.Be provided with groove and the bead that this groove matches, make between sealing ring and the syringe inwall combine more firm.
Described sealing ring adopts silica gel or TPE or TPV or TPR or the molding of TPU elastomeric material quadric injection mould.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is sealing ring and syringe injection moulding all-in-one-piece structural representation.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Fig. 4 is the cutaway view of syringe.
Fig. 5 is the cutaway view of sealing ring.
The specific embodiment
Referring to Fig. 1, this utility model is improvements over the prior art, and a kind of improved safety self-destructing syringe comprises syringe 1, is installed in the push rod 2 in the syringe 1 and is installed in the plug 3 of push rod 2 front ends, syringe 1 front end is equipped with needle stand 4, and needle stand 4 comprises awl seat 5 and bracing ring 6.
Its improvements are:
One, referring to Fig. 2, Fig. 3, be provided with a ring-like sealing ring 7 between syringe 1 front inner wall and awl seat 5 cylindricals, described ring-like sealing ring 7 is injection molded into one with syringe 1.Owing to be provided with a ring-like sealing ring 7 between syringe 1 front inner wall and awl seat 5 cylindricals, sealing ring need not a plurality of on the one hand, only need one just, reduced the number of sealing ring, reduce cost, simplified the operation that sealing ring is installed, be injection molded into one because of ring-like sealing ring and syringe on the other hand, the sealing property of syringe is strengthened greatly, keep not leaking when when injection or drawing liquid, being subjected to positive high voltage or negative high voltage.
Two, referring to Fig. 4, Fig. 5, syringe 1 front inner wall is provided with a circle groove 8, and described sealing ring 7 is provided with the bead 9 that a circle matches with this groove 8.Be provided with the bead 9 that groove 8 matches with this groove, make between sealing ring and the syringe inwall combine more firm.
Sealing ring of the present utility model adopts silica gel or TPE or TPV or TPR or the molding of TPU elastomeric material quadric injection mould, has good elastic force and anti-extrusion ability.
Claims (3)
1, a kind of improved safety self-destructing syringe, comprise syringe (1), be installed in the push rod (2) in the syringe and be installed in the plug (3) of push rod front end, syringe (1) front end is equipped with needle stand (4), needle stand (4) comprises awl seat (5) and bracing ring (6), it is characterized in that: be provided with a ring-like sealing ring (7) between described syringe (1) front inner wall and awl seat (5) cylindrical, described ring-like sealing ring (7) is injection molded into one with syringe (1).
2, a kind of improved safety self-destructing syringe as claimed in claim 1 is characterized in that: described syringe (1) front inner wall is provided with a circle groove (8), and described sealing ring (7) is provided with the bead (9) that a circle matches with this groove (8).
3, a kind of improved safety self-destructing syringe as claimed in claim 1 or 2 is characterized in that: described sealing ring (7) adopts silica gel or TPE or TPV or TPR or the molding of TPU elastomeric material quadric injection mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200838343U CN201164635Y (en) | 2008-02-29 | 2008-02-29 | Improved safe self-destructing injection syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200838343U CN201164635Y (en) | 2008-02-29 | 2008-02-29 | Improved safe self-destructing injection syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201164635Y true CN201164635Y (en) | 2008-12-17 |
Family
ID=40190021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200838343U Expired - Fee Related CN201164635Y (en) | 2008-02-29 | 2008-02-29 | Improved safe self-destructing injection syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201164635Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011029264A1 (en) * | 2009-09-10 | 2011-03-17 | 常州和康医疗器材有限公司 | Disposable safety injector with retractable needle |
-
2008
- 2008-02-29 CN CNU2008200838343U patent/CN201164635Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011029264A1 (en) * | 2009-09-10 | 2011-03-17 | 常州和康医疗器材有限公司 | Disposable safety injector with retractable needle |
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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: 20081217 Termination date: 20120229 |