CN103239782B - Spring type safe self-destructive injector - Google Patents
Spring type safe self-destructive injector Download PDFInfo
- Publication number
- CN103239782B CN103239782B CN201310173866.8A CN201310173866A CN103239782B CN 103239782 B CN103239782 B CN 103239782B CN 201310173866 A CN201310173866 A CN 201310173866A CN 103239782 B CN103239782 B CN 103239782B
- Authority
- CN
- China
- Prior art keywords
- collapsible
- core bar
- core rod
- snapping
- cassette
- 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.)
- Active
Links
- 206010040007 Sense of oppression Diseases 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003612 virological effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a spring type safe self-destructive injector which comprises an injection needle, a needle holder, a sleeve and a core rod. A snapping ring is arranged on the inside of the lower portion of the needle holder. The core rod is of a hollow tubular structure, the upper portion of the core rod is a hole shrinkage tube section, a rubber plug is sleeved outside the hole shrinkage tube section and the upper portion of the core rod, and a snapping retractable spring seat is arranged on the upper portion of the inside of the core rod. The upper portion of the snapping retractable spring seat is arranged on the upper end surface of the core rod in a snapping mode, a spring is sleeved outside the lower portion of the snapping retractable spring seat, and a snapping protrusion is arranged at the upper end of the snapping retractable spring seat and matches with a fastener of the snapping ring. The needle holder is arranged on the upper portion of the inside of the sleeve through a switch type valve ring. When the injector is pulled off after the injection is finished, the core rod is further pushed, a supporting point supported on the upper end surface of the core rod shrinks and moves away from the upper end surface of the core rod under the action of the switch type valve ring, meanwhile, the snapping retractable spring seat with the needle holder and the injection needle move to a chamber of the core rod under the action of the spring, so that the purposes of self-destruction and safety are achieved.
Description
Technical field
The present invention relates to a kind of disposable syringe, after especially a kind of use, can make draw point recoil to the spring type safety self-destruction syringe in injection tube.
Background technology
Cause viral cross infection for fear of using antihygienic syringe, disposable syringe is widely used at medical field.Reuse in order to stop artificial recovery, people arrange self-desttruction equipment on disposable syringe.But, although common self-destruction syringe can prevent reusing of syringe to a certain extent and cause viral cross infection, but syringe makes discarded syringe produce many inconvenience in the processes such as collection, transport, processing because draw point exposes after using, still likely stab medical worker and other relevant personnel, cause the infection of virus and bacteria.
Chinese patent once disclosed multinomial steel needle retractable destructing safety formula syringe, but the feature of its structure is, between needle stand and inside, injection tube upper end, rebound spring is set, use after described injector to inject, under the effect of spring, draw point is entered by resilience in the cavity of core bar together with needle stand, prevent syringe use after due to draw point expose stab the relevant personnel phenomenon occur, reach safe object.But, find that in practice existing steel needle retractable destructing safety formula syringe exists following weak point: due to buckle between needle stand and overcoat fix and under the effect of spring draw point entered by resilience in the cavity of core bar together with needle stand, only rely on the frictional force between card convex ring and the card groove that is arranged on needle stand and put outward, both degrees of tightness coordinate and are difficult to control: when too tight, spring is difficult to draw point to spring into together with needle stand in the cavity of core bar; When too loose, needle stand meeting automatic retracted when injection, injection work cannot be carried out.
summary of the invention:
The object of the invention is to overcome the shortcoming of the above syringe, a kind of spring type safety self-destruction syringe of improved its dependable performance is provided.
The present invention, comprise entry needle and needle stand thereof, overcoat and the core bar that is positioned at overcoat, lower inside at needle stand is provided with snap ring, described core bar is hollow tubular structure, lower end is provided with core bar bonnet, top is undergauge pipeline section, there is plug at undergauge pipeline section and upper end overcoat, is furnished with the collapsible spring base of cassette in core bar inner and upper, cassette is collapsible, and spring base is provided with the reducing diameter part coordinating with described undergauge pipeline section, the top of the collapsible spring base of cassette is fastened on the upper surface of core bar, in the bottom of the collapsible spring base of cassette, cover has spring, in the upper end of the collapsible spring base of cassette, be provided with card convex, the snap ring of card convex and needle stand bottom is clasped, described needle stand is arranged on overcoat inner and upper by switching regulator valve circle, the periphery wall of described switching regulator valve circle and the inwall of overcoat are tight fit, in the Lower Half inner side of switching regulator valve circle, be provided with cavity, on cavity, be provided with the on & off switch being connected with switching regulator valve circle consubstantiality, the lower surface of described needle stand is supported on described on & off switch.
The present invention, the mesopore of the external diameter of described needle stand and switching regulator valve circle is loose fit.
The present invention, on the top of the collapsible spring base of described cassette, be provided with collapsible supporter, collapsible supporter is positioned at the below of described card convex, under normal circumstances, the effective width of collapsible supporter is greater than the diameter of the mesopore of switching regulator valve circle, and the lower end of collapsible supporter is supported on the upper surface of core bar; In the time that collapsible supporter suffers oppression diametrically, the effective width of collapsible supporter is less than the diameter of core bar upper surface through hole.
The present invention, because needle stand is arranged on overcoat inner and upper by switching regulator valve circle, and the periphery wall of switching regulator valve circle and the inwall of overcoat be tight fit, and the top, lower surface of needle stand is located on described on & off switch, on the one hand, needle stand and entry needle thereof can be fixed on overcoat inner and upper reliably, another aspect, because the on & off switch of switching regulator valve circle is for can dial formula, that is: in the time that core bar upwards promotes, owing to being provided with the collapsible spring base of cassette above core bar, the top of the collapsible spring base of cassette is provided with collapsible supporter, on the one hand, collapsible supporter extruding on & off switch makes it shrink to cavity, because on & off switch shrinks to cavity, eliminate the supporting role of switching regulator valve circle to needle stand, meanwhile, the card convex of cassette is collapsible spring base upper end is buckled on the snap ring of needle stand bottom, another aspect, collapsible supporter is subject to the extruding of switching regulator valve circle endoporus and shrinks, the fulcrum that is supported on core bar upper surface shrinks and departs from core bar upper surface, at this moment, under the effect of spring, cassette is collapsible, and spring base is sprung in the cavity of core bar together with needle stand and entry needle, now, syringe disintegrates and cannot reuse, the entry needle of crossing with medicinal liquid and contact patients is all stored in the cylinder of core bar, reach self-destruction, security purpose.
Brief description of the drawings
Fig. 1-Fig. 5 is the structure principle chart of embodiment, wherein, and the structure principle chart that Fig. 1 is syringe, Fig. 2 is the structure chart of the collapsible spring base of cassette, Fig. 3 is the structural perspective of switching regulator valve circle, and Fig. 4 is the top view of switching regulator valve circle, the A-A cutaway view that Fig. 5 is Fig. 4.
In figure, 1, sheath; 2, needle stand; 21, snap ring; 3, switching regulator valve circle; 31, cavity; 32, on & off switch; 33, mesopore; 4, plug; 5, the collapsible spring base of cassette; 51, card convex; 52, collapsible supporter; 53, reducing diameter part; 54, water shutoff bulge loop; 6, core bar; 61, undergauge pipeline section; 7, core print seat bonnet; 8, entry needle; 9, spring; 10, overcoat.
Detailed description of the invention
With reference to accompanying drawing, a kind of spring type safety self-destruction syringe, comprise entry needle 8 and needle stand 2 thereof, overcoat 10 and the core bar 6 that is positioned at overcoat, be provided with snap ring 21 in the lower inside of needle stand 2, described core bar 6 is hollow tubular structure, lower end is provided with core bar bonnet 7, top is undergauge pipeline section 61, there is plug 4 at undergauge pipeline section 61 and upper end overcoat, is furnished with the collapsible spring base 5 of cassette in core bar 6 inner and upper, cassette is collapsible, and spring base 5 is provided with the reducing diameter part 53 coordinating with described undergauge pipeline section 61, on 53 of reducing diameter parts, be provided with water shutoff bulge loop 54, the top of cassette is collapsible spring base 5 is fastened on the upper surface of core bar 6, in the bottom of the collapsible spring base 5 of cassette, cover has spring 9, in the upper end of the collapsible spring base 5 of cassette, be provided with card convex 51, below card convex 51, be provided with collapsible supporter 52, under normal circumstances, the effective width of collapsible supporter 52 is greater than the diameter of the mesopore 33 of switching regulator valve circle 3, and the lower end of collapsible supporter 52 is supported on the upper surface of core bar, in the time that collapsible supporter 52 suffers oppression diametrically, the effective width of collapsible supporter 52 is less than the diameter of core bar upper surface through hole, described card convex 51 is clasped with the snap ring 21 of needle stand 2 bottoms, described needle stand 2 is arranged on overcoat 10 inner and upper by switching regulator valve circle 3, the periphery wall of described switching regulator valve circle 3 and the inwall of overcoat 10 are tight fit, in the Lower Half inner side of switching regulator valve circle 3, be provided with cavity 31, on cavity 31, be provided with the on & off switch 32 being connected with switching regulator valve circle 3 consubstantialities, the lower surface of described needle stand 2 is supported on described on & off switch 32.The mesopore 33 of the external diameter of described needle stand 2 and switching regulator valve circle 3 is loose fit.
Its using method and operation principle are as follows: in the time of clinical use, take off needle guard 1, then the using method of syringe extracts medicinal liquid routinely, and also the using method of syringe is carried out injecting liquid drug routinely, after liquid medicine injection finishes, can extract syringe.Then, continue to advance core bar 6, make to move in core bar 6 continuation, in continuation due to core bar 6, move, the collapsible supporter 52 of spring base 5 tops settings that cassette is collapsible, on the one hand, collapsible supporter 52 pushes on & off switch 32 makes it shrink to cavity 31, because on & off switch 32 shrinks to cavity 31, eliminate the supporting role of switching regulator valve circle 3 to needle stand 2, meanwhile, the card convex 51 of cassette is collapsible spring base 3 upper ends is buckled on the snap ring 21 of needle stand 2 bottoms, another aspect, collapsible supporter 52 is subject to the extruding of switching regulator valve circle 3 endoporus 33 and shrinks, the fulcrum that is supported on core bar 6 upper surfaces shrinks and departs from core bar upper surface, at this moment, under the effect of spring 9, cassette is collapsible, and spring base 5 is sprung in the cavity of core bar 6 together with needle stand 2 and entry needle 8.Now, syringe disintegrates and cannot reuse, and the entry needle 8 of crossing with medicinal liquid and contact patients is all stored in the cylinder of core bar 6, reaches the object of self-destruction, safety.
Claims (2)
1. a spring type safety self-destruction syringe, comprise entry needle (8) and needle stand (2) thereof, overcoat (10) and be positioned at the core bar (6) of overcoat, be provided with snap ring (21) in the lower inside of needle stand (2), described core bar (6) is hollow tubular structure, lower end is provided with core bar bonnet (7), top is undergauge pipeline section (61), there is plug (4) at undergauge pipeline section (61) and upper end overcoat, is furnished with the collapsible spring base of cassette (5) in core bar (6) inner and upper, cassette is collapsible, and spring base (5) is provided with the reducing diameter part (53) coordinating with described undergauge pipeline section (61), the top of cassette is collapsible spring base (5) is fastened on the upper surface of core bar (6), in the bottom of the collapsible spring base of cassette (5), cover has spring (9), in the upper end of the collapsible spring base of cassette (5), be provided with card convex (51), card convex (51) is clasped with the snap ring (21) of needle stand (2) bottom, it is characterized by: described needle stand (2) is arranged on overcoat (10) inner and upper by switching regulator valve circle (3), the inwall of the periphery wall of described switching regulator valve circle (3) and overcoat (10) is tight fit, in the Lower Half inner side of switching regulator valve circle (3), be provided with cavity (31), on cavity (31), be provided with the on & off switch (32) being connected with switching regulator valve circle (3) consubstantiality, the lower surface of described needle stand (2) is supported on described on & off switch (32), on the top of the collapsible spring base of described cassette, be provided with collapsible supporter (52), collapsible supporter (52) is positioned at the below of described card convex (51), under normal circumstances, the effective width of collapsible supporter (52) is greater than the diameter of the mesopore (33) of switching regulator valve circle (3), and the lower end of collapsible supporter (52) is supported on the upper surface of core bar, in the time that collapsible supporter (52) suffers oppression diametrically, the effective width of collapsible supporter (52) is less than the diameter of core bar upper surface through hole.
2. spring type safety self-destruction syringe according to claim 1, is characterized by: the mesopore (33) of the external diameter of described needle stand (2) and switching regulator valve circle (3) is loose fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310173866.8A CN103239782B (en) | 2013-05-12 | 2013-05-12 | Spring type safe self-destructive injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310173866.8A CN103239782B (en) | 2013-05-12 | 2013-05-12 | Spring type safe self-destructive injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103239782A CN103239782A (en) | 2013-08-14 |
| CN103239782B true CN103239782B (en) | 2014-09-03 |
Family
ID=48919883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310173866.8A Active CN103239782B (en) | 2013-05-12 | 2013-05-12 | Spring type safe self-destructive injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103239782B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721325B (en) * | 2014-01-12 | 2015-09-02 | 广东海鸥医疗器械股份有限公司 | Automatic retracted safe syringe |
| US10420878B2 (en) | 2015-11-19 | 2019-09-24 | Guangdong Haiou Medical Apparatus Co., Ltd. | Syringe assembly |
| CN106860974B (en) * | 2017-04-14 | 2019-01-25 | 黄旭荣 | Segmented safety self-destroyed syringe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6706019B1 (en) * | 1998-09-25 | 2004-03-16 | David W. Parker | Hypodermic syringes |
| CN101274114A (en) * | 2008-02-04 | 2008-10-01 | 房东森 | Automatic retraction safety syringe |
| CN201375735Y (en) * | 2009-05-13 | 2010-01-06 | 罗绍基 | Spring type safe self-destruction syringe |
| CN203196095U (en) * | 2013-05-12 | 2013-09-18 | 广东海鸥医疗器械股份有限公司 | Spring type safe self-destroying injection syringe |
-
2013
- 2013-05-12 CN CN201310173866.8A patent/CN103239782B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6706019B1 (en) * | 1998-09-25 | 2004-03-16 | David W. Parker | Hypodermic syringes |
| CN101274114A (en) * | 2008-02-04 | 2008-10-01 | 房东森 | Automatic retraction safety syringe |
| CN201375735Y (en) * | 2009-05-13 | 2010-01-06 | 罗绍基 | Spring type safe self-destruction syringe |
| CN203196095U (en) * | 2013-05-12 | 2013-09-18 | 广东海鸥医疗器械股份有限公司 | Spring type safe self-destroying injection syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103239782A (en) | 2013-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102370396B1 (en) | Safety syringe | |
| WO2009127077A1 (en) | Pre-filled automatically retractable safe injector | |
| CN103239782B (en) | Spring type safe self-destructive injector | |
| BRPI0519953A2 (en) | self-destructing safety syringe available | |
| WO2020019154A1 (en) | Disposable anti-puncturing insulin injection needle and anti-puncturing method | |
| CN101143238A (en) | Spring type safety self-destruction syringe | |
| US9498580B2 (en) | Hypodermic syringe apparatus having a needle guard assembly with shielding for protection from the needle after use | |
| CN101690833A (en) | Safety injector with automatically retractable needle | |
| CN203196095U (en) | Spring type safe self-destroying injection syringe | |
| CN201098441Y (en) | Safety self-breaking injector capable of exchanging steel needle seat | |
| CN201070486Y (en) | Spring type safe self-breaking syringe | |
| CN204655681U (en) | The safety injector of the mid-spring of a kind of core bar | |
| CN203954348U (en) | Self-destroy safety injector | |
| CN201375735Y (en) | Spring type safe self-destruction syringe | |
| CN201612912U (en) | Safety spring self-destruction injector | |
| CN107530508A (en) | Insulin syringe | |
| CN101143237A (en) | Steel needle retractable safety self-destructing syringe | |
| CN200980874Y (en) | Spring type safety self-destructing syringe | |
| CN201085830Y (en) | Spring type safe self-breaking syringe | |
| CN210873457U (en) | Safety syringe with needle point capable of repeatedly stretching | |
| CN202505913U (en) | Disposable pull-back safety self-destruction injector | |
| CN202096549U (en) | Safety entry needle | |
| CN208809233U (en) | A kind of insulin injection syringe | |
| CN201379862Y (en) | Spring-type safe self-destroying syringe | |
| CN204709541U (en) | A kind of entry needle with protective sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A spring type safety self destructive syringe Effective date of registration: 20231229 Granted publication date: 20140903 Pledgee: Bank of China Limited Jieyang Puning Branch Pledgor: GUANGDONG HAIOU MEDICAL APPARATUS STOCK Co.,Ltd. Registration number: Y2023980075480 |