CN203815978U - Disposable safety self-destructive syringe - Google Patents
Disposable safety self-destructive syringe Download PDFInfo
- Publication number
- CN203815978U CN203815978U CN201420179087.9U CN201420179087U CN203815978U CN 203815978 U CN203815978 U CN 203815978U CN 201420179087 U CN201420179087 U CN 201420179087U CN 203815978 U CN203815978 U CN 203815978U
- Authority
- CN
- China
- Prior art keywords
- push rod
- overcoat
- entry needle
- ring
- syringe
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 244000273618 Sphenoclea zeylanica Species 0.000 claims description 3
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a disposable safety self-destructive syringe. The disposable safety self-destructive syringe mainly comprises a sheath (1), a syringe needle (2), a push rod (8) and an outer sleeve (9), wherein an elastic seal ring (5) is connected to the interior of the end of the outer sleeve in a sealing manner and stuck by a positioning flange (92); a ring-shaped protrusion (21) at the tail part of the syringe needle (2) is clamped in a fixing groove (51) of the elastic seal ring (5) in a sealing manner; the tail part of the syringe needle (2) is sleeved with a spring (4); a nut cap (3) is buckled into the outer sleeve (9) through a ring-shaped positioning groove (31) and a positioning convex ring (91); the spring (4) is kept in a compressed state; the push rod (8) in the outer sleeve (9) is connected with the outer sleeve in a sealing manner and is a hollow rod with a seal plug (8) arranged therein. Compared with the prior art, the disposable safety self-destructive syringe is convenient to use, simple to assemble and suitable for batch production.
Description
Technical field
This utility model relates to a kind of disposable use safety self-destructing syringe, relates to specifically a kind of disposable use safety self-destructing medical syringe.
Background technology
At present existing people utilizes negative pressure of vacuum that entry needle is attracted to the safety self-destructing syringe in core bar after having developed and having used, but its complex structure, there are some designing requirement parts machining precision high, negative pressure of vacuum is difficult to assurance, and a lot of parts are to be difficult to guarantee machining accuracy in actual production, are easy to entry needle needle point card hair while particularly assembling spring to entry needle needle point position, form barb, the defects such as burr, assembling difficulty simultaneously, manufacturability is poor.For this reason, the inventor, for above problem, improves partial design, to make up the deficiencies in the prior art.
Summary of the invention
The purpose of this utility model is to provide a kind of novel structure, it is reliable to use, and entry needle can be pressed in push rod after completing liquid medicine injection, avoids the disposable use safety self-destructing syringe being used again.
The purpose of this utility model is to realize like this, it is mainly by sheath (1), entry needle (2), push rod (8), overcoat (9) forms, wherein: the inside, termination of overcoat (9) is provided with positioning convex ring (91) and locating flange (92), it is inner that elastic seal ring (5) sealing is connected on overcoat (9) termination, and the flange that is positioned (92) blocks, entry needle (2) tail end ring protruding (21) sealed card is connected in elastic seal ring (5) holddown groove (51), spring (4) is enclosed within entry needle (2) afterbody, block (3) is socketed in entry needle (2) and spring (4) outside, and tie in overcoat (9) inside by positioning ring groove (31) and locating flange (91) button, spring (4) under the restriction of block (3) upper flange (32) and entry needle (2) tail end in impaction state, sheath (1) is socketed in entry needle (2) syringe needle position, overcoat (9) inside is provided with push rod (8), push rod (8) termination is tightly connected by elastic piston (7) and overcoat (9), push rod (8) is hollow stem, and sealing-plug (6) is connected together by positioning ring groove (61) and push rod (8) termination positioned internal bulge loop (81).
This utility model compared with prior art, easy to use, assembling is simple, and technique is more reasonable, is applicable to batch production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the local enlarged diagram of this utility model.
Fig. 3 is the local enlarged diagram that this utility model removes block (3), elastic seal ring (5), sealing-plug (6).
Fig. 4 is the enlarged diagram of this utility model block (3)
Fig. 5 is the enlarged diagram of this utility model elastic seal ring (5)
Fig. 6 is that this utility model is the enlarged diagram of elastic packing plug (6)
Fig. 7's is this utility model local structure for amplifying schematic diagram when injection completes.
Fig. 8's is the structural representation after this utility model injection.
In figure: 1, sheath, 2, entry needle, 21, encircle protruding, 3, block, 31, positioning ring groove, 32, flange, 4, spring, 5, elastic seal ring, 51, holddown groove, 6, sealing-plug, 61, positioning ring groove, 7, elastic piston, 8, push rod, 81, positioning convex ring, 9, overcoat, 91, positioning convex ring, 92, locating flange.
The specific embodiment
Below in conjunction with drawings and Examples, this utility model is further illustrated:
Referring to accompanying drawing, this utility model it mainly by sheath 1, entry needle 2, push rod 8, overcoat 9 forms, wherein: the inside, termination of overcoat 9 is provided with positioning convex ring 91 and locating flange 92, it is inner that elastic seal ring 5 sealings are connected on overcoat 9 terminations, and the flange 92 that is positioned blocks, protruding 21 sealed cards of entry needle 2 tail end ring are connected in elastic seal ring 5 holddown grooves 51, spring 4 is enclosed within entry needle 2 afterbodys, block 3 is socketed in entry needle 2 and spring 4 outsides, and tie in overcoat 9 inside by positioning ring groove 31 and locating flange 91 buttons, spring 4 under the restriction of block 3 upper flanges 32 and entry needle 2 tail ends in impaction state, sheath 1 is socketed in entry needle 2 syringe needle positions, overcoat 9 inside are provided with push rod 8, and push rod 8 terminations are tightly connected by elastic piston 7 and overcoat 9, and push rod 8 is hollow stem, and sealing-plug 6 is connected together by positioning ring groove 61 and push rod 8 termination positioned internal bulge loops 81.
During use, take off sheath 1, pumpback push rod 8 is drawn medicinal liquid, after medicinal liquid extracts, promote push rod 8 and implement injection, when injection finishes, because push rod 8 is hollow design, under external force, entry needle 2 tail ends are evaded the positioning convex ring 81 on the positioning ring groove on sealing-plug 6 61 and push rod 8, simultaneously, push rod 8 end rings promote elastic seal ring 5, cause the ring protruding 21 on elastic seal ring 5 inside fixation slot 51 and entry needle 2 to depart from, because spring 4 is originally in compression position, now elasticity discharges, entry needle 2 is together pushed to push rod 8 inside together with sealing-plug 6, thereby realize self-destruction, having avoided being injected device secondary uses.
Claims (1)
1. a disposable use safety self-destructing syringe, it is mainly by sheath (1), entry needle (2), push rod (8), overcoat (9) forms, it is characterized in that: the inside, termination of overcoat (9) is provided with positioning convex ring (91) and locating flange (92), it is inner that elastic seal ring (5) sealing is connected on overcoat (9) termination, and the flange that is positioned (92) blocks, entry needle (2) tail end ring protruding (21) sealed card is connected in elastic seal ring (5) holddown groove (51), spring (4) is enclosed within entry needle (2) afterbody, block (3) is socketed in entry needle (2) and spring (4) outside, and tie in overcoat (9) inside by positioning ring groove (31) and locating flange (91) button, spring (4) under the restriction of block (3) upper flange (32) and entry needle (2) tail end in impaction state, sheath (1) is socketed in entry needle (2) syringe needle position, overcoat (9) inside is provided with push rod (8), push rod (8) termination is tightly connected by elastic piston (7) and overcoat (9), push rod (8) is hollow stem, and sealing-plug (6) is connected together by positioning ring groove (61) and push rod (8) termination positioned internal bulge loop (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179087.9U CN203815978U (en) | 2014-04-15 | 2014-04-15 | Disposable safety self-destructive syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179087.9U CN203815978U (en) | 2014-04-15 | 2014-04-15 | Disposable safety self-destructive syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203815978U true CN203815978U (en) | 2014-09-10 |
Family
ID=51471526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420179087.9U Expired - Fee Related CN203815978U (en) | 2014-04-15 | 2014-04-15 | Disposable safety self-destructive syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203815978U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548282A (en) * | 2015-01-12 | 2015-04-29 | 江苏磐宇科技有限公司 | Production technology of anti-puncturing protection device |
| CN110812607A (en) * | 2019-12-09 | 2020-02-21 | 湖南平安医械科技有限公司 | Vacuum self-destruction safety syringe |
-
2014
- 2014-04-15 CN CN201420179087.9U patent/CN203815978U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548282A (en) * | 2015-01-12 | 2015-04-29 | 江苏磐宇科技有限公司 | Production technology of anti-puncturing protection device |
| CN110812607A (en) * | 2019-12-09 | 2020-02-21 | 湖南平安医械科技有限公司 | Vacuum self-destruction safety syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150415 |
|
| EXPY | Termination of patent right or utility model |