CN105169529A - Self-destructive injector - Google Patents
Self-destructive injector Download PDFInfo
- Publication number
- CN105169529A CN105169529A CN201510485264.5A CN201510485264A CN105169529A CN 105169529 A CN105169529 A CN 105169529A CN 201510485264 A CN201510485264 A CN 201510485264A CN 105169529 A CN105169529 A CN 105169529A
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- CN
- China
- Prior art keywords
- self
- hole
- push rod
- injection tube
- syringe
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Abstract
The invention discloses a self-destructive injector which comprises an injection barrel, a push rod and a self-destructive device. A rubber plug is arranged at the front end of the push rod in a sleeving manner, a cavity is arranged in the push rod, a plurality of first through holes are formed in the push rod, the self-destructive device comprises a fixing ring, a rod portion and a conical portion which are formed integrally, a first step portion is arranged at the other end of the rod portion, a syringe needle is mounted in the first step portion, a second through hole is formed in the rod portion, a needle hole is formed in the syringe needle, a spring is arranged on the rod portion in a sleeving manner, the conical portion is provided with a plurality of third through holes, the injection barrel comprises a body portion and a head, a buckling portion is arranged on the inner wall of the body portion, a fourth through hole is formed in the end wall of the head, the first step portion and the syringe needle penetrate the fourth through hole, a second step portion is arranged on the inner wall of the head, and the spring is compressed between the second step portion and the conical portion, so that automatic retraction of the syringe needle can be realized, and safety is improved greatly.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly relate to a kind of self-destruction syringe.
Background technology
Cause the cross infection of virus in order to avoid using antihygienic syringe, disposable syringe has been widely used at medical field, reuses to stop artificial recovery, and people are provided with self-desttruction equipment on disposable syringe.Although common self-destroyed syringe can prevent reusing of syringe and cause the cross interference of virus to a certain extent, but in the process of collection, transport, process, produce more problem because draw point exposes the syringe making to discard after syringe uses, still have and may stab medical personnel.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of self-destruction syringe realizing needle automatic retracting.
For achieving the above object, the technical solution used in the present invention is: a kind of self-destruction syringe, comprise: injection tube, being installed on also can along the push rod of the central axis direction movement of injection tube and the self-desttruction equipment be installed in injection tube in injection tube cavity, the front end sleeve of described push rod is provided with the plug matched with injection tube inwall, the cavity that the central axis direction along push rod extends is provided with in described push rod, described push rod is provided with several first through holes communicated with cavity, described self-desttruction equipment comprises retainer ring, bar portion and be arranged at the tapered portion of one end, bar portion, the other end in described bar portion is provided with first step portion, in described first step portion, syringe needle is installed, described retainer ring, bar portion and tapered portion are formed in one, the second through hole extended along bar portion central axis direction is provided with in described bar portion, the pin hole connected with the second through hole is provided with in described syringe needle, described bar portion is arranged with spring, described tapered portion is provided with the several third through-holes connected with the second through hole, described injection tube comprises main part and head, the inwall place of described main part is provided with the clamping part matched with the retainer ring of self-desttruction equipment, the end wall of head is provided with fourth hole, described first step portion and syringe needle are through this fourth hole, the inwall place of head is provided with second step portion, described spring is compressed between second step portion and tapered portion.
Preferably, in above-mentioned a kind of self-destruction syringe, described first through hole is arranged near push rod afterbody, and the quantity of described first through hole is four.
Preferably, in above-mentioned a kind of self-destruction syringe, the quantity of described third through-hole is three.
Preferably, in above-mentioned a kind of self-destruction syringe, described clamping part is arranged ringwise.
Preferably, in above-mentioned a kind of self-destruction syringe, the tapered setting of described retainer ring.
Beneficial effect of the present invention is: the self-destruction syringe structure in the present invention is simple, easy for installation, after injection completes, the thrust of push rod is utilized to be separated with tapered portion by the retainer ring of self-desttruction equipment, plug punctures by tapered portion simultaneously, automatically springed open in the cavity of push rod by the spring compressed, the bar portion of self-desttruction equipment, tapered portion and syringe needle are bound in the cavity of push rod together under the drive of spring, thus realize the automatic retracted of syringe needle, substantially increase security performance.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of self-destruction syringe in the present invention, which disclose syringe do not inject before situation.
Fig. 2 is the structural representation of self-destruction syringe in the present invention, which discloses situation when to be in self-destruction state after injector to inject completes.
In Fig. 1 and Fig. 2: 1, injection tube, 2, push rod, 3, self-desttruction equipment, 4, plug, 5, cavity, the 6, first through hole, 7, retainer ring, 8, bar portion, 9, tapered portion, 10, first step portion, 11, syringe needle, 12, spring, 13, third through-hole, 14, main part, 15, head, 16, clamping part, 17, end wall, 18, fourth hole, 19, second step portion.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.The example of these preferred implementations illustrates in the accompanying drawings.Shown in accompanying drawing and the embodiments of the present invention described with reference to the accompanying drawings be only exemplary, and the present invention is not limited to these embodiments.
At this, also it should be noted that, in order to avoid the present invention fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related structure of the solution of the present invention and/or treatment step, and eliminate other details little with relation of the present invention.
Shown in ginseng Fig. 1 and Fig. 2, a kind of self-destruction syringe, comprise: injection tube 1, to be installed in injection tube 1 cavity and can along the push rod 2 of the central axis direction movement of injection tube 1 and the self-desttruction equipment 3 be installed in injection tube 1, the front end sleeve of described push rod 2 is provided with the plug 4 matched with injection tube inwall, the cavity 5 that the central axis direction along push rod extends is provided with in described push rod 2, described push rod 2 is provided with several first through holes 6 communicated with cavity 5, described first through hole 6 is arranged near push rod afterbody, and the quantity of described first through hole 6 is four.The setting of described first through hole 6 can so that when bullet ejects, the circulation of air.Described self-desttruction equipment 3 comprises retainer ring 7, bar portion 8 and is arranged at the tapered portion 9 of one end, bar portion 8, the tapered setting of described retainer ring 7.The other end in described bar portion 8 is provided with first step portion 10, in described first step portion 10, syringe needle 11 is installed, described retainer ring 7, bar portion 8 and tapered portion 9 are formed in one, the second through hole extended along bar portion central axis direction is provided with in described bar portion 8, the pin hole connected with the second through hole is provided with in described syringe needle 11, described bar portion 8 is arranged with spring 12, described tapered portion 9 is provided with the several third through-holes 13 connected with the second through hole, in the present embodiment, the quantity of described third through-hole 13 is three.Described injection tube 1 comprises main part 14 and head 15, the inwall place of described main part 14 is provided with the annular snap buckle portion 16 matched with the retainer ring 7 of self-desttruction equipment, the end wall 17 of head 15 is provided with fourth hole 18, described first step portion 10 and syringe needle 11 are through this fourth hole 18, the inwall place of head 15 is provided with second step portion 19, and described spring 12 is compressed between second step portion 19 and tapered portion 9.
In the present invention, the operation principle of self-destruction syringe is: after completing injection, push rod 2 a little firmly depress again, this action makes the junction between the tapered portion 9 of self-desttruction equipment and retainer ring 7 directly be inferred by thrust, simultaneously, tapered portion 9 punctures plug 4, start tentatively to enter hollow push rod, tapered portion 9 loses retainer ring 7 and fixes, upspring rapidly by Compress Spring, push rod cavity head is sprung into rapidly from push rod cavity bottom, therefore syringe needle 11 is directly brought in push rod cavity, after whole action completes, plug 4 is injected a clamping part at inwall place 16 and blocks, can not be drawn out, thus realize complete self-destruction.
In sum, self-destruction syringe structure in the present invention is simple, easy for installation, after injection completes, the thrust of push rod is utilized to be separated with tapered portion by the retainer ring of self-desttruction equipment, simultaneously plug punctures by tapered portion, is automatically springed open in the cavity of push rod by the spring compressed, and the bar portion of self-desttruction equipment, tapered portion and syringe needle are bound to together in the cavity of push rod under the drive of spring, thus realize the automatic retracted of syringe needle, substantially increase security performance.
Finally, also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Claims (5)
1. a self-destruction syringe, it is characterized in that, comprise: injection tube, being installed on also can along the push rod of the central axis direction movement of injection tube and the self-desttruction equipment be installed in injection tube in injection tube cavity, the front end sleeve of described push rod is provided with the plug matched with injection tube inwall, the cavity that the central axis direction along push rod extends is provided with in described push rod, described push rod is provided with several first through holes communicated with cavity, described self-desttruction equipment comprises retainer ring, bar portion and be arranged at the tapered portion of one end, bar portion, the other end in described bar portion is provided with first step portion, in described first step portion, syringe needle is installed, described retainer ring, bar portion and tapered portion are formed in one, the second through hole extended along bar portion central axis direction is provided with in described bar portion, the pin hole connected with the second through hole is provided with in described syringe needle, described bar portion is arranged with spring, described tapered portion is provided with the several third through-holes connected with the second through hole, described injection tube comprises main part and head, the inwall place of described main part is provided with the clamping part matched with the retainer ring of self-desttruction equipment, the end wall of head is provided with fourth hole, described first step portion and syringe needle are through this fourth hole, the inwall place of head is provided with second step portion, described spring is compressed between second step portion and tapered portion.
2. a kind of self-destruction syringe as claimed in claim 1, is characterized in that: described first through hole is arranged near push rod afterbody, and the quantity of described first through hole is four.
3. a kind of self-destruction syringe as claimed in claim 1, is characterized in that: the quantity of described third through-hole is three.
4. a kind of self-destruction syringe as claimed in claim 1, is characterized in that: described clamping part is arranged ringwise.
5. a kind of self-destruction syringe as claimed in claim 1, is characterized in that: the tapered setting of described retainer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510485264.5A CN105169529A (en) | 2015-08-10 | 2015-08-10 | Self-destructive injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510485264.5A CN105169529A (en) | 2015-08-10 | 2015-08-10 | Self-destructive injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105169529A true CN105169529A (en) | 2015-12-23 |
Family
ID=54892258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510485264.5A Pending CN105169529A (en) | 2015-08-10 | 2015-08-10 | Self-destructive injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105169529A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172957A (en) * | 2018-09-30 | 2019-01-11 | 四川大学华西医院 | Self-destructed disposable syringe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066115A (en) * | 1999-07-19 | 2000-05-23 | Chang Lai; Yu-Hau | Safety syringe |
| CN200984381Y (en) * | 2006-03-20 | 2007-12-05 | 江波 | Disposable safe self-breaking syringe |
| CN201505348U (en) * | 2009-10-16 | 2010-06-16 | 黄灵扬 | Spring type self-destroying syringe |
| CN101856526A (en) * | 2009-08-15 | 2010-10-13 | 徐昊华 | Disposable safe syringe with automatically-retracted and replaceable needle |
| CN101947341A (en) * | 2010-09-15 | 2011-01-19 | 徐昊华 | Disposable safe syringe capable of automatically retract with replaceable needles |
| CN203954348U (en) * | 2014-07-03 | 2014-11-26 | 山东威高集团医用高分子制品股份有限公司 | Self-destroy safety injector |
| CN204864381U (en) * | 2015-08-10 | 2015-12-16 | 苏州灵岩医疗科技股份有限公司 | Self -destruction injector |
-
2015
- 2015-08-10 CN CN201510485264.5A patent/CN105169529A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066115A (en) * | 1999-07-19 | 2000-05-23 | Chang Lai; Yu-Hau | Safety syringe |
| CN200984381Y (en) * | 2006-03-20 | 2007-12-05 | 江波 | Disposable safe self-breaking syringe |
| CN101856526A (en) * | 2009-08-15 | 2010-10-13 | 徐昊华 | Disposable safe syringe with automatically-retracted and replaceable needle |
| CN201505348U (en) * | 2009-10-16 | 2010-06-16 | 黄灵扬 | Spring type self-destroying syringe |
| CN101947341A (en) * | 2010-09-15 | 2011-01-19 | 徐昊华 | Disposable safe syringe capable of automatically retract with replaceable needles |
| CN203954348U (en) * | 2014-07-03 | 2014-11-26 | 山东威高集团医用高分子制品股份有限公司 | Self-destroy safety injector |
| CN204864381U (en) * | 2015-08-10 | 2015-12-16 | 苏州灵岩医疗科技股份有限公司 | Self -destruction injector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172957A (en) * | 2018-09-30 | 2019-01-11 | 四川大学华西医院 | Self-destructed disposable syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |