CN202505913U - Disposable pull-back safety self-destruction injector - Google Patents
Disposable pull-back safety self-destruction injector Download PDFInfo
- Publication number
- CN202505913U CN202505913U CN2012200632281U CN201220063228U CN202505913U CN 202505913 U CN202505913 U CN 202505913U CN 2012200632281 U CN2012200632281 U CN 2012200632281U CN 201220063228 U CN201220063228 U CN 201220063228U CN 202505913 U CN202505913 U CN 202505913U
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- CN
- China
- Prior art keywords
- injector
- needle stand
- needle seat
- needle
- core bar
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- 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 - Lifetime
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Abstract
The utility model discloses a disposable pull-back safety self-destruction injector, and belongs to the technical field of medical equipment. The injector comprises a core rod (1), an injector outer sleeve (2), a rubber plug (3) and an injection needle with a needle seat (4), wherein a break-off groove is formed below the rubber plug (3) on the upper middle part of the core rod (1); a conical head (7) is arranged above the rubber plug (3) on the top of the core rod (1); a long elastic through groove (5) is formed in the middle of the conical head (7); and barbs (6) are formed on the external surface of the bottom of the conical head (7). The injector is characterized in that an inner hole of the needle seat (4) is inclined; and a square pull-back table (8) of which the inclination angle is consistent with that of the inner hole of the needle seat (4) and the width is greater than the diameter of a round hole of the needle seat (4) is arranged in the middle of the needle seat (4). Compared with the prior art, the injector has the advantages that the injector has a simple structure, is easy to operate, is safely and conveniently used and is low in manufacturing cost, a patient does not feel pain, production efficiency is improved, automatic assembly can be completely realized, injection residues are avoided, and the like.
Description
Technical field
Disposable use haulback type safe self-breaking syringe belongs to medical instruments field.It specifically is the disposable injection medical apparatus and instruments.
Background technology
Disposable syringe is widely used in medical field as conventional medical apparatus and instruments; But for various reasons, cross infection happens occasionally, and in injection is used and cleared up, infects the also corresponding increase of ratio of fatal pathogenic bacteria because of accidental puncture; Its height hazardness has constituted serious threat to the people and vast medical care service personal's life; Although some research worker and research institution have developed some these type of syringes in succession at present, all there are some defectives, the self-destroyed syringe that for example has has reached the self-destruction purpose; But because of the defective of design, and increased patient's pain; The product that has has reached the effect of safe handling, but product structure is complicated, cost is high, production efficiency is low.
The utility model content
The technical problem that this utility model will solve is: overcome the problem that prior art exists; Provide a kind of simple in structure, easy to operate, safe and convenient to use, patient do not have pain, manufacturing cost lower, enhance productivity, can realize automatic assembling fully, and do not have the residual disposable use haulback type safe self-breaking syringe of injection.
This utility model solves the technical scheme that its technical problem adopted: this disposable use haulback type safe self-breaking syringe; The entry needle that comprises core bar, syringe jacket tube, plug and band needle stand; The below of position, core bar upper middle plug is provided with the groove that fractures; A conehead is established in the top of core bar top plug, opens a long elasticity groove in the middle of the conehead, and the conehead bottom outer surface is provided with barb; It is characterized in that: the needle stand endoporus is skewed, and needle stand middle part has and width consistent with its endoporus angle of inclination square platform of pulling back greater than the needle stand Circularhole diameter.
Needle stand inner hole centreline and needle stand form angle.
The elasticity groove mainly is can be more easy and convenient when being convenient to conehead entering needle stand.The square hole width is greater than the diameter of circular hole in the needle stand; This design can make the barb and the decometer of pulling back close closely; Like this can be fully behind injecting liquid drug the needle stand needle point position of pulling back to the syringe jacket tube be close to cylinder inboard wall and can not be released cylindrical shell once more, effectively avoided medical worker's pricking wound risk during product treatment after use.
Compared with prior art, the beneficial effect that had of the disposable use haulback type safe self-breaking syringe of this utility model is: the general safety self-destroyed syringe all adopts the Dispoable medical plastic production, has realized automatic assembling, can enhance productivity greatly.Having solved traditional baroque self-destruction syringe has realized not automatic assembling and has had the residual problem of injection.Have simultaneously that simple in structure, easy for operation, safety, patient are painless, the convenient advantage such as errorless of self-destruction.
Description of drawings
Fig. 1 is the internal structure cross-sectional schematic after the installing of this utility model.
Fig. 2 is an internal structure cutaway view sketch map after the core bar of this utility model is pulled back.
Fig. 3 is the local enlarged diagram of the I part of Fig. 1.
Fig. 1-the 3rd, the most preferred embodiment of this utility model.
Wherein: 1, core bar 2, syringe jacket tube 3, plug 4, needle stand 5, elasticity groove 6, barb 7, conehead 8, pull back platform 9, needle tip shield.
The specific embodiment
Below in conjunction with accompanying drawing 1-3 the disposable use haulback type safe self-breaking syringe of this utility model is described further:
Shown in Fig. 1-3:
This disposable use haulback type safe self-breaking syringe; Comprise the entry needle of core bar 1, syringe jacket tube 2, plug 3 and band needle stand 4, the below of position, core bar 1 upper middle plug 3 is provided with the groove that fractures, and a conehead 7 is established in the top of core bar 1 top plug 3; Open a long elasticity groove 5 in the middle of the conehead 7; Conehead 7 bottom outer surfaces are provided with barb 6, and needle stand 4 endoporus are skewed, and needle stand 4 middle parts have and width consistent with its endoporus angle of inclination square platform 8 of pulling back greater than needle stand 4 Circularhole diameters.Needle stand 4 inner hole centrelines and needle stand 4 form the angle of 8 degree.
Operation principle and work process:
When in syringe jacket tube 2, advancing the core bar 1 that has plug 3; Barb 6 contacts with platform 8 places that pull back; Elasticity groove 5 easily gets into needle stand 4 endoporus to centre retraction barb 6, and after barb 6 and the platform 8 of pulling back put in place and contact, the elasticity groove 5 resilience barbs 6 and the platform 8 of pulling back pinned automatically; Liquid is fully discharged the noresidue standard that reaches in the syringe, accomplishes injection process.With after the core bar 1 of independently pulling back; Needle stand 4 gets in the syringe jacket tube 2; At this moment the needle point restraining forces that the lost cylindrical shell angle, the needle point position that promptly form 8 degree with core bar 1 is close to cylinder inboard wall and can not released cylindrical shell once more; The core bar 1 that fractures then, core bar 1 head and plug 3 and needle stand 4 are stayed syringe jacket tube 2 inside, reach the safety self-destruct state.
The above; It only is the preferred embodiment of this utility model; Be not to be the restriction of this utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every this utility model technical scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of this utility model technical scheme according to the technical spirit of this utility model.
Claims (2)
1. disposable use haulback type safe self-breaking syringe; The entry needle that comprises core bar (1), syringe jacket tube (2), plug (3) and band needle stand (4); The below of core bar (1) position, upper middle plug (3) is provided with the groove that fractures; A conehead (7) is established in the top of core bar (1) top plug (3), opens a long elasticity groove (5) in the middle of the conehead (7), and conehead (7) bottom outer surface is provided with barb (6); It is characterized in that: needle stand (4) endoporus is skewed, and needle stand (4) middle part has and width consistent with its endoporus angle of inclination square platform of pulling back (8) greater than needle stand (4) Circularhole diameter.
2. disposable use haulback type safe self-breaking syringe according to claim 1 is characterized in that: needle stand (4) inner hole centreline and needle stand (4) form angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200632281U CN202505913U (en) | 2012-02-24 | 2012-02-24 | Disposable pull-back safety self-destruction injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200632281U CN202505913U (en) | 2012-02-24 | 2012-02-24 | Disposable pull-back safety self-destruction injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202505913U true CN202505913U (en) | 2012-10-31 |
Family
ID=47058425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200632281U Expired - Lifetime CN202505913U (en) | 2012-02-24 | 2012-02-24 | Disposable pull-back safety self-destruction injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202505913U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103585691A (en) * | 2013-11-28 | 2014-02-19 | 贾红洲 | Inward-drawing self-destroying injector with syringe needle hook height difference |
| CN114129822A (en) * | 2021-12-03 | 2022-03-04 | 湖南平安医械科技有限公司 | Pull-back syringe |
-
2012
- 2012-02-24 CN CN2012200632281U patent/CN202505913U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103585691A (en) * | 2013-11-28 | 2014-02-19 | 贾红洲 | Inward-drawing self-destroying injector with syringe needle hook height difference |
| CN114129822A (en) * | 2021-12-03 | 2022-03-04 | 湖南平安医械科技有限公司 | Pull-back syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170822 Granted publication date: 20121031 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200822 Granted publication date: 20121031 |
|
| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |
|
| CX01 | Expiry of patent term |