CN102824673A - Pullback type self-destruction injecting device - Google Patents
Pullback type self-destruction injecting device Download PDFInfo
- Publication number
- CN102824673A CN102824673A CN2012103235442A CN201210323544A CN102824673A CN 102824673 A CN102824673 A CN 102824673A CN 2012103235442 A CN2012103235442 A CN 2012103235442A CN 201210323544 A CN201210323544 A CN 201210323544A CN 102824673 A CN102824673 A CN 102824673A
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- CN
- China
- Prior art keywords
- needle
- core bar
- pin spare
- injection tube
- rear end
- 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.)
- Pending
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- 244000208734 Pisonia aculeata Species 0.000 title abstract 3
- 238000002347 injection Methods 0.000 claims description 41
- 239000007924 injection Substances 0.000 claims description 41
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a pullback type self-destruction injecting device which comprises an injecting barrel, a needle holder, a needle sleeve, a needle pipe, a needle, a core bar and a rubber plug, wherein the needle holder is connected with the front end of the injecting barrel; the needle sleeve is sleeved on the needle holder; the rear end of the needle pipe is fixed into the needle, and the front end of the needle pipe is contained into the needle sleeve; the needle is arranged into the needle holder, and the rear end of the needle extends into the injecting barrel; the needle is provided with an inclined face; the injecting barrel is provided with a matching inclined face for being matched with the inclined face of the needle to prevent the needle from being backed; the core bar is inserted into the injecting barrel through the rear end of the injecting barrel; a gap for containing the rear end of the needle is arranged at the front end of the core bar; a blocking position for extruding the inclined face of the needle is arranged at an opening of the gap; and the rubber plug is sleeved at the front end of the mandrel. With the adoption of the pullback type self-destruction injecting device, the potential risk due to exposed external pipe can be avoided, and the safety can be improved; and moreover, a breaking groove is arranged on the core bar, so that the core bar can break off along the breaking groove during carrying out self-destruction, and therefore, the dual-self-destruction effect can be achieved, and the safety can be ensured to the maximum.
Description
Technical field
The present invention relates to a kind of syringe, relate in particular to a kind of haulback type self-destroyed syringe.
Background technology
Syringe is a kind of medical apparatus and instruments commonly used, and for fear of cross infection between the user, syringe all is disposable use at present.
Yet needle tubing exposed after syringe used, and medical personnel and waste products treatment people all sting human body easily by mistake when used syringe is handled, bring great potential safety hazard.
Therefore, be necessary for people a kind of safe haulback type self-destroyed syringe is provided, expose the security hidden trouble that causes to solve needle tubing.
Summary of the invention
To the deficiency of prior art, the object of the invention is intended to provide a kind of haulback type self-destroyed syringe, and its safety is good, has eliminated the potential safety hazard that needle tubing exposes.
For realizing that above-mentioned purpose the present invention adopts following technical scheme:
A kind of haulback type self-destroyed syringe comprises injection tube, needle stand, needle guard, needle tubing, pin spare, core bar and plug, and this needle stand is connected with the front end of injection tube; Needle guard is enclosed within on the needle stand, and the rear end of needle tubing is fixed in the pin spare, and front end is contained in the needle guard; This pin spare is installed in the needle stand, and the rear end of pin spare extends in the injection tube, and pin spare is provided with the inclined-plane; Injection tube is provided with the cooperation inclined-plane of inclined-plane to stop pin spare to be retreated that is used to cooperate pin spare, and core bar is inserted in the injection tube by the rear end of injection tube, and the front end of core bar is provided with the breach that is used to hold pin spare rear end; The opening part of breach is provided with the screens on the inclined-plane that is used to push pin spare, and plug is enclosed within on the front end of core bar.
Wherein, break away from from the core bar front end for avoiding plug, the front end of said core bar is provided with convexity, corresponding, plug is provided with recess, and convexity is stuck in the recess.
Wherein, deviate from from the rear end of injection tube for fear of the front end of core bar, the front end of said core bar is provided with limited impression, corresponding, the inner surface of injection tube rear end is provided with spacing block set.
Wherein, be further to guarantee safety, be provided with between the front end of said core bar and the rear end and be used for core bar fractureed into two sections snap slot.
Wherein, expose forward again, be provided with the salient point that is used to push up oblique pin spare in the said breach for preventing needle tubing.
Wherein, for strengthening sealing, be provided with sealing ring between said needle stand and the needle guard.
A kind of haulback type self-destroyed syringe that the present invention set forth, its beneficial effect is: this product is withdrawn in the injection tube through the needle tubing that will expose, thereby needle tubing is hidden, and avoids needle tubing to expose and brings potential safety hazard, has improved safety greatly.And, through snap slot is set on core bar, can core bar be fractureed along snap slot during self-destruction, reach the effect of dual self-destruction, thereby guaranteed safety to greatest extent.
Description of drawings
Fig. 1 is the configuration diagram of the embodiment of the invention;
Fig. 2 is the enlarged drawing of M position among Fig. 1;
Fig. 3 is a kind of state diagram of the embodiment of the invention;
Fig. 4 is another state diagram of the embodiment of the invention;
Fig. 5 is another state diagram of the embodiment of the invention;
Fig. 6 is another state diagram of the embodiment of the invention.
Description of reference numerals:
10, injection tube; 11, cooperate the inclined-plane; 12, spacing block set; 20, needle stand; 30, needle guard; 40, needle tubing; 50, pin spare; 51, inclined-plane; 60, core bar; 61, breach; 611, salient point; 62, screens; 63, convexity; 64, limited impression; 65, snap slot; 70, plug; 71, recess; 80, sealing ring.
The specific embodiment
Come the present invention is further described below in conjunction with accompanying drawing and specific embodiment.
Please referring to figs. 1 through shown in Figure 6, it has demonstrated the concrete structure of preferred embodiment of the present invention, a kind of haulback type self-destroyed syringe; Comprise injection tube 10, needle stand 20, needle guard 30, needle tubing 40, pin spare 50, core bar 60 and plug 70, this needle stand 20 is connected with the front end of injection tube 10, and needle guard 30 is enclosed within on the needle stand 20; The rear end of needle tubing 40 is fixed in the pin spare 50; Front end is contained in the needle guard 30, and this pin spare 50 is installed in the needle stand 20, and the rear end of pin spare 50 extends in the injection tube 10; And pin spare 50 is provided with inclined-plane 51; Injection tube 10 is provided with the cooperation inclined-plane 11 of inclined-plane 51 to stop pin spare 50 to be retreated that is used to cooperate pin spare 50, and core bar 60 is inserted in the injection tube 10 by the rear end of injection tube 10, and the front end of core bar 60 is provided with the breach 61 that is used to hold pin spare 50 rear ends; The opening part of breach 61 is provided with the screens 62 on the inclined-plane 51 that is used to push pin spare 50, and plug 70 is enclosed within on the front end of core bar 60.
For avoiding plug 70 to break away from from core bar 60 front ends, the front end of said core bar 60 is provided with convexity 63, corresponding, plug 70 is provided with recess 71, and protruding 63 are stuck in the recess 71.
Front end for fear of core bar 60 is deviate from from the rear end of injection tube 10, and the front end of said core bar 60 is provided with limited impression 64, corresponding, the inner surface of injection tube 10 rear ends is provided with spacing block set 12.
Be further to guarantee safety, be provided with between the front end of said core bar 60 and the rear end and be used for core bar 60 fractureed into two sections snap slot 65.
For preventing that needle tubing 40 from exposing forward again, be provided with the salient point 611 that is used to push up oblique pin spare 50 in the said breach 61.
For strengthening sealing, be provided with sealing ring 80 between said needle stand 20 and the needle guard 30.
Operation principle of the present invention is following:
During injection, needle guard 30 is taken off, needle tubing 40 inserts injection position, and this moment, the inclined-plane 51 owing to pin spare 50 cooperatively interacted with the inclined-plane 11 that cooperates of injection tube 10; Pin spare 50 can not retreated when injection, and when core bar 60 was advanced to the end of injection tube 10 front ends with plug 70, injector to inject was accomplished; Like figure, 3, the rear end of this hour hand piece 50 gets in the breach 61 of core bar 60 front ends; Plug 70 is compressed, and the inclined-plane 51 of the screens of core bar 60 62 extruding pin spares 50 forces and contracts in the inclined-plane 51 of pin spare 50 and separate with the cooperation inclined-plane 11 of injection tube 10; The resilience force that the core bar 60 of pulling back then, plug 70 are compressed generation also helps the core bar 60 pin spare 50 of pulling back simultaneously, like Fig. 4; Pin spare 50 moves to the rear end of injection tube 10 in company with core bar 60 together, when needle tubing 40 gets in the injection tube 10 fully, like Fig. 5; Pin spare 50 rear ends are oblique by 611 tops of the salient point in the breach 61, and this hour hand piece 50 is no longer parallel with injection tube 10, even the 50 unexpected reaches of pin spare; Needle tubing 40 can not expose from the front end of injection tube 10, and when the front end of core bar 60 moved to the rear end of injection tube 10, spacing block set 12 was stuck in the limited impression 64; Core bar 60 can not continue to move backward, and can not drop out from the rear end of injection tube 10, and the snap slot on the core bar 60 65 flushes with the back end edge edge of injection tube 10 just at this moment; Like Fig. 6, then core bar 60 is fractureed into two sections along snap slot 65, wherein one section is that core bar 60 original front ends are stayed in the injection tube 10; Such benefit is: can't be again carry out preceding push operation to core bar 60 front ends of staying in the injection tube 10, the fortuitous event that exposes from injection tube 10 can not appear in the needle tubing 40 on the pin spare 50, has reached the effect of dual self-destruction.
The above; It only is preferred embodiment of the present invention; Be not that technical scope of the present invention is done any restriction, so every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any trickle modification, equivalent variations and modification that above embodiment did.
Claims (6)
1. haulback type self-destroyed syringe, it is characterized in that: comprise injection tube, needle stand, needle guard, needle tubing, pin spare, core bar and plug, this needle stand is connected with the front end of injection tube; Needle guard is enclosed within on the needle stand, and the rear end of needle tubing is fixed in the pin spare, and front end is contained in the needle guard; This pin spare is installed in the needle stand; The rear end of pin spare extends in the injection tube, and pin spare is provided with the inclined-plane, and injection tube is provided with the cooperation inclined-plane of inclined-plane to stop pin spare to be retreated that is used to cooperate pin spare; Core bar is inserted in the injection tube by the rear end of injection tube; The front end of core bar is provided with the breach that is used to hold pin spare rear end, and the opening part of breach is provided with the screens on the inclined-plane that is used to push pin spare, and plug is enclosed within on the front end of core bar.
2. a kind of haulback type self-destroyed syringe according to claim 1, it is characterized in that: the front end of said core bar is provided with convexity, corresponding, plug is provided with recess, and convexity is stuck in the recess.
3. a kind of haulback type self-destroyed syringe according to claim 1, it is characterized in that: the front end of said core bar is provided with limited impression, corresponding, the inner surface of injection tube rear end is provided with spacing block set.
4. a kind of haulback type self-destroyed syringe according to claim 1 is characterized in that: be provided with between the front end of said core bar and the rear end and be used for core bar fractureed into two sections snap slot.
5. a kind of haulback type self-destroyed syringe according to claim 1 is characterized in that: be provided with the salient point that is used to push up oblique pin spare in the said breach.
6. a kind of haulback type self-destroyed syringe according to claim 1 is characterized in that: be provided with sealing ring between said needle stand and the pin spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103235442A CN102824673A (en) | 2012-09-04 | 2012-09-04 | Pullback type self-destruction injecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103235442A CN102824673A (en) | 2012-09-04 | 2012-09-04 | Pullback type self-destruction injecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102824673A true CN102824673A (en) | 2012-12-19 |
Family
ID=47328116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103235442A Pending CN102824673A (en) | 2012-09-04 | 2012-09-04 | Pullback type self-destruction injecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102824673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509618A (en) * | 2021-04-16 | 2021-10-19 | 山东新华安得医疗用品有限公司 | Quantitative self-destruction syringe |
| CN120459458A (en) * | 2025-07-15 | 2025-08-12 | 昆山准达热流道有限公司 | A retractable self-destructive safety syringe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2768805Y (en) * | 2004-08-27 | 2006-04-05 | 邹纯平 | Self-destroying safety injector |
| CN2930735Y (en) * | 2005-12-14 | 2007-08-08 | 郭春 | Self-destroyed safety syringe |
| CN202777326U (en) * | 2012-09-04 | 2013-03-13 | 广东顺德全能医事工业有限公司 | Pull-back self-destruction injector |
-
2012
- 2012-09-04 CN CN2012103235442A patent/CN102824673A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2768805Y (en) * | 2004-08-27 | 2006-04-05 | 邹纯平 | Self-destroying safety injector |
| CN2930735Y (en) * | 2005-12-14 | 2007-08-08 | 郭春 | Self-destroyed safety syringe |
| CN202777326U (en) * | 2012-09-04 | 2013-03-13 | 广东顺德全能医事工业有限公司 | Pull-back self-destruction injector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509618A (en) * | 2021-04-16 | 2021-10-19 | 山东新华安得医疗用品有限公司 | Quantitative self-destruction syringe |
| CN120459458A (en) * | 2025-07-15 | 2025-08-12 | 昆山准达热流道有限公司 | A retractable self-destructive safety syringe |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |