CN202191550U - Improved structure of small needle seat of disposable safe syringe - Google Patents
Improved structure of small needle seat of disposable safe syringe Download PDFInfo
- Publication number
- CN202191550U CN202191550U CN2011203129904U CN201120312990U CN202191550U CN 202191550 U CN202191550 U CN 202191550U CN 2011203129904 U CN2011203129904 U CN 2011203129904U CN 201120312990 U CN201120312990 U CN 201120312990U CN 202191550 U CN202191550 U CN 202191550U
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- CN
- China
- Prior art keywords
- syringe
- needle stand
- hypomere
- small
- little needle
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an improved structure of a small needle seat of a disposable safe syringe. The small needle seat can be divided into a small-diameter upper section, a large-diameter middle section and a small-diameter lower section from top to bottom, the small-diameter upper section can match with an inner hole of a large needle seat, the large-diameter middle section can match with a mounting hole at the head of a needle barrel, a lower boss is formed between the middle section and the lower section and is fastened with an elastic expanding claw barb disposed at the bottom of the mounting hole of the needle barrel, and the lower section passes through an elastic expanding claw to extend into the needle barrel. Thrust produced when a clamp ring at the head of a mandrel is clamped in the small needle seat can be reduced to a certain degree, and discomfort of a patient when the syringe is used for carrying out infusion for the patient is reduced.
Description
Technical field
The present invention relates to a kind of disposible safety syringe, particularly the structure-improved of the little needle stand of disposible safety syringe.
Background technology
Before; The applicant applied for patent ZL200920305366.4; Name is called disposable needle point automatic retraction safety syringe, and is in second embodiment of this patent, as illustrated in fig. 1 and 2; The epimere 21 of little needle stand 2 ' increase gradually for diameter from top to bottom ', stage casing 22 ' and hypomere 23 ', hypomere 23 ' the endoporus bottom be provided with engaging protrusion 24 '.Said epimere 21 ', stage casing 22 ' be equipped with big needle stand 3 ' endoporus, hypomere 23 ' be equipped with the installing hole of syringe head 1 ' portion.Syringe 1 ' installing hole bottom be provided with under the effect of core bar head expansible little needle stand bit-stopping structure be elasticity support claw 11 '; Elasticity support claw 11 ' be provided with barb 111 ' engage with little needle stand 2 ' bottom in lower inside; The elasticity support claw 11 ' ramp structure that a gradient cooperates with the core bar beveled head is set in the bottom, and the relative core bar beveled head in ramp structure position certain distance that inwardly staggers.
In use; When core bar is not compressed to syringe 1 ' bottom; Elasticity support claw 11 ' barb 111 ' block little needle stand 2 ' bottom, make little needle stand 2 ' stop, guarantee that little needle stand 2 ' in injection process can be because of the excessive and big needle stand 3 of counteracting force ' disengaging phenomenon that contracts in taking place.When injection completion core bar is compressed to the bottom; At first be the snap ring of the core bar head engaging protrusion 24 that snaps in little needle stand endoporus bottom '; Then the gradient because of elasticity support claw 11 ' ramp structure cooperates with the core bar beveled head; The relative core bar beveled head in ramp structure position certain distance that inwardly staggers simultaneously, the beveled head of core bar will force elasticity support claw 11 ' the bottom expand outwardly, and along with the further compression of core bar forces elasticity support claw 11 ' strut outwardly; Make barb 111 ' with the releasing that engages of little needle stand 2 ' bottom, guaranteed little needle stand 2 ' can normally bounce back.In above structure; Whole little needle stand 2 ' bottom be wrapped in fully elasticity support claw 11 ' in, this makes when snap ring when the core bar head snaps in little needle stand 2 ' endoporus, the engaging protrusion 24 of little needle stand 2 ' endoporus bottom ' can't realize basically being out of shape; The main self-deformation of core bar head snap ring that relies on is realized snapping in; The deflection of snap ring is bigger, and the core bar thrust that need use is also bigger, and this will can bring certain discomfort to the patient in the middle of injection.
Summary of the invention
To the problems referred to above; The present invention has designed the structure-improved of the little needle stand of disposible safety syringe; It further improves to little needle stand existing structure; Thrust in the time of can reducing core bar head snap ring to a certain extent and snap in little needle stand reduces the sense of discomfort that syringe brings to the patient when injection.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
The structure-improved of the little needle stand of disposible safety syringe is characterized in that: said little needle stand is divided into the minor diameter epimere that can cooperate with big needle stand endoporus, the major diameter stage casing and the minor diameter hypomere that can cooperate with syringe head installing hole from top to bottom; Form a lower convex platform between said stage casing and the hypomere, lower convex platform fastens with the elasticity support claw barb that is arranged on syringe installing hole bottom; Said hypomere is crossed the elasticity support claw and is extend in the syringe, and the endoporus bottom of hypomere is provided with the engaging protrusion that can engage with core bar head snap ring.
Engaging protrusion in the little needle stand endoporus of this utility model is positioned at the hypomere endoporus bottom of crossing the elasticity support claw; Expose fully outside the elasticity support claw; This structure is provided with, and makes when the snap ring of core bar head snaps in the engaging protrusion of little needle stand endoporus, and the hypomere that little needle stand exposes also deforms stressed outer support; This not only helps snapping in smoothly of core bar head snap ring; Simultaneously also will significantly reduce the deflection of core bar head snap ring when snapping in, thereby the thrust when reducing core bar head snap ring to a certain extent and snapping in reduces the sense of discomfort that syringe brings to the patient when injection.
Description of drawings
The structural representation of Fig. 1, existing little needle stand;
Fig. 2, existing little needle stand cooperate sketch map with the installation of syringe;
The structural representation of Fig. 3, the little needle stand of this utility model;
Fig. 4, this utility model cooperate sketch map with the installation of syringe.
The specific embodiment
Shown in Fig. 3 and 4, the structure-improved of the little needle stand of disposible safety syringe, said little needle stand 2 are divided into the minor diameter epimere 21 that can cooperate with big needle stand 3 endoporus, the major diameter stage casing 22 and the minor diameter hypomere 23 that can cooperate with syringe 1 head installing hole from top to bottom.
Form a lower convex platform 221 between said stage casing 22 and the hypomere 23, lower convex platform 221 fastens with elasticity support claw 11 barbs 111 that are arranged on syringe 1 installing hole bottom.
Said hypomere 23 is crossed elasticity support claw 11 and is extend in the syringe 1, and the endoporus of hypomere 23 bottom is provided with the engaging protrusion 24 that can engage with core bar head snap ring.
To sum up; This utility model is the structure-improved of the little needle stand of disposible safety syringe; It further improves to little needle stand existing structure, and the thrust in the time of can reducing core bar head snap ring to a certain extent and snap in reduces the sense of discomfort that syringe brings to the patient when injection.
Claims (2)
1. the structure-improved of the little needle stand of disposible safety syringe, it is characterized in that: said little needle stand is divided into the minor diameter epimere that can cooperate with big needle stand endoporus, the major diameter stage casing and the minor diameter hypomere that can cooperate with syringe head installing hole from top to bottom; Form a lower convex platform between said stage casing and the hypomere, lower convex platform fastens with the elasticity support claw barb that is arranged on syringe installing hole bottom; Said hypomere is crossed the elasticity support claw and is extend in the syringe.
2. the structure-improved of the little needle stand of disposible safety syringe as claimed in claim 1 is characterized in that: the endoporus bottom of said hypomere is provided with the engaging protrusion that can engage with core bar head snap ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203129904U CN202191550U (en) | 2011-08-25 | 2011-08-25 | Improved structure of small needle seat of disposable safe syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203129904U CN202191550U (en) | 2011-08-25 | 2011-08-25 | Improved structure of small needle seat of disposable safe syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202191550U true CN202191550U (en) | 2012-04-18 |
Family
ID=45946483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203129904U Expired - Fee Related CN202191550U (en) | 2011-08-25 | 2011-08-25 | Improved structure of small needle seat of disposable safe syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202191550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043166A (en) * | 2014-07-07 | 2014-09-17 | 江西益康医疗器械集团有限公司 | Safety injector and needle connector fixing structure thereof |
-
2011
- 2011-08-25 CN CN2011203129904U patent/CN202191550U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043166A (en) * | 2014-07-07 | 2014-09-17 | 江西益康医疗器械集团有限公司 | Safety injector and needle connector fixing structure thereof |
| WO2016004717A1 (en) * | 2014-07-07 | 2016-01-14 | 江西益康医疗器械集团有限公司 | Safe syringe and needle connector fixing structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI SHUANGGE INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: LI HUIHUI Effective date: 20140611 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 318020 TAIZHOU, ZHEJIANG PROVINCE TO: 200000 FENGXIAN DISTRICT, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140611 Address after: 200000 1888, Shanghai Hangzhou highway, Jianghai Economic Zone, Shanghai Patentee after: Double-Dove Industrial Co., Ltd. Address before: 318020 No. 888 Bridge Road, Huangyan District, Zhejiang, Taizhou Patentee before: Li Huihui |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI JUMIN BIOTECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI SHUANGGE INDUSTRIAL CO., LTD. Effective date: 20141017 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200000 FENGXIAN, SHANGHAI TO: 201400 FENGXIAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141017 Address after: 201400 Shanghai City, Fengxian District Hangzhou Highway No. 1888 building Sixth Patentee after: SHANGHAI JUMIN BIOLOGICAL TECHNOLOGY CO., LTD. Address before: 200000 1888, Shanghai Hangzhou highway, Jianghai Economic Zone, Shanghai Patentee before: Double-Dove Industrial Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20160825 |