CN201469824U - Improved structure for disposable safe injector needle file - Google Patents
Improved structure for disposable safe injector needle file Download PDFInfo
- Publication number
- CN201469824U CN201469824U CN2009203081984U CN200920308198U CN201469824U CN 201469824 U CN201469824 U CN 201469824U CN 2009203081984 U CN2009203081984 U CN 2009203081984U CN 200920308198 U CN200920308198 U CN 200920308198U CN 201469824 U CN201469824 U CN 201469824U
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- needle stand
- big
- improved
- needle file
- head
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Abstract
The utility model discloses an improved structure for a disposable safe injector needle file, comprising a big needle file and a small needle file. A locking structure for enhancing retracted deflection thereof is disposed on the head of the big needle file. Overcoming the technical problem of the prior art, the utility model designs an improved structure for a disposable safe injector needle file, which ensures the excellent tightness of the big needle file and the small needle file, greatly simplifies the matching side of the big needle file and the small needle file, greatly decreases the exciting resistance of the small needle file, and is simple and practical.
Description
Technical field
This utility model relates to a kind of disposible safety syringe, particularly a kind of disposible safety syringe needle stand structure-improved.
Background technology
Before, the applicant once applied for two China's patent, was respectively: a kind of disposable needle point automatic retraction safety syringe, and application number is: 200920116899.8; Disposable needle point automatic retraction safety syringe, application number is: 200920305366.4.In the middle of these two patents, needle stand is by big needle stand 1 ' and little needle stand 2 ' compositions, its structure as shown in Figure 1, little needle stand 2 ' middle epimere is positioned at big needle stand 1 ' endoporus, rely on stiction be equipped with needle stand 1 greatly ' on.At this, little needle stand 2 ' with big needle stand 1 ' be connected and sealing only depends on both interference fit to realize, and for the effectiveness that guarantees to connect and seal, big needle stand 1 ' endoporus is arranged to three shoulder hole sections, little needle stand 2 ' profile also is designed to three stepped profile, in the middle of reality processing, make that processing and assembling are all cumbersome.In addition, in the middle of reality processing, large and small needle stand 1 ', 2 ' matching allowance be difficult to hold, increase matching allowance if strengthen sealing, will cause little needle stand 2 ' and big needle stand 1 ' between frictional resistance increase, make little needle stand 2 ' the resistance that excites heighten, the stimulation failure phenomenon might appear; And if reduce the magnitude of interference excite resistance and to dwindle cooperation, then can make again little needle stand 2 ' with big needle stand 1 ' sealing can not get guaranteeing the generation phenomenon of leakage.
The utility model content
At the problems referred to above, this utility model has designed a kind of disposible safety syringe needle stand structure-improved, when guaranteeing little needle stand and big needle stand excellent sealing, has simplified large and small needle stand mating surface structure, significantly reduce the resistance that excites of little needle stand, had simple, practical characteristics.
For achieving the above object, this utility model is by the following technical solutions:
A kind of disposible safety syringe needle stand structure-improved is made up of big needle stand and little needle stand, it is characterized in that: described big needle stand head is provided with the locking mechanism that strengthens compression deformation amount in it.
Further, above-mentioned locking mechanism is made up of at least two grooves that are arranged on big needle stand head.
Further, the big relatively needle stand head of above-mentioned groove is circularly and evenly distributed.
Further, above-mentioned groove can be divided into several groups, and is that the big relatively needle stand head of unit is circularly and evenly distributed with the group.
Further, above-mentioned little needle stand is provided with the mold insert that strengthens sealing with big needle stand junction.
Further, above-mentioned mold insert adopts medical grade rubber TPE.
Further, above-mentioned big needle stand exterior bottom is provided with and can forms the snap fit tabs that is threaded with the groove of syringe head.
Further, middle and upper part, the above-mentioned big needle stand outside is provided with the ratchet that engages with sheath, and when assembling with sheath, sheath produces inside extruding force to big needle stand locking mechanism.
Further, the endoporus of above-mentioned big needle stand is divided into hole section, mold insert mounting groove and following hole section; The profile of little needle stand is divided into minor diameter epimere and major diameter hypomere, and forms a boss in the junction of epimere and hypomere, and hole section, mold insert endoporus cooperate on its medium-small diameter epimere and the big needle stand, and boss and mold insert bottom surface offset.
This utility model guarantees exciting smoothly of little needle stand in order to reduce big or small needle stand value of interference fit, is provided with the locking mechanism that strengthens compression deformation amount in it at big needle stand head.
Before not assembling with syringe cylinder, size needle stand and sheath can be considered one module are installed, the locking of size needle stand realizes by the entry needle sheath, be specially, when big needle stand cooperated with sheath, sheath pushed ratchet structure, and the locking mechanism of big needle stand head is produced inside extruding force, locking mechanism further produces extruding to little needle stand, realizes locking.
At this,, be provided with the mold insert that plays sealing function in the junction of little needle stand and big needle stand for the leakage problem that prevents to reduce to produce because of big or small needle stand value of interference fit.
In addition, the endoporus of big needle stand only is divided into hole section, mold insert mounting groove and following hole section, and the profile of little needle stand only is divided into minor diameter epimere and major diameter hypomere, and this structural design has been simplified large and small needle stand mating surface structure, is convenient to assembling and processing.
Description of drawings
Fig. 1, existing needle stand planar structure sketch map;
The planar structure sketch map of Fig. 2, this utility model needle stand;
The perspective view of Fig. 3, the big needle stand of this utility model;
The planar structure sketch map of Fig. 4, the big needle stand of this utility model;
The planar structure sketch map of Fig. 5, the little needle stand of this utility model;
The schematic layout pattern of Fig. 6, this utility model locking mechanism groove;
Fig. 7, this utility model locking mechanism groove are the sketch map that unit carries out layout with the group.
The specific embodiment
Shown in Fig. 2 and 3, a kind of disposible safety syringe needle stand structure-improved is made up of big needle stand 1 and little needle stand 2.
Shown in Fig. 3 and 4, wherein big needle stand 1 exterior bottom is provided with one can form the snap fit tabs 11 that is threaded with the groove of syringe head, and middle and upper part, the big needle stand outside is provided with the ratchet 12 that engages with sheath 4.Big needle stand head is provided with the locking mechanism that strengthens compression deformation amount in it, locking mechanism is made up of at least two grooves 13, in the middle of present embodiment, groove 13 is set to four, while is for the consideration of stress balance, big relatively needle stand 1 head of each groove 13 is circularly and evenly distributed, and its structure as shown in Figure 6.
In addition, the groove 13 of locking mechanism also can be divided into several groups as required, is that big relatively needle stand 1 head of unit is circularly and evenly distributed with the group, as shown in Figure 7, is eight grooves, 13 quadripartite layout structures, and every group is two grooves 13.
At this, for the leakage problem that prevents to reduce to produce, be provided with the mold insert 3 that plays sealing function in the junction of little needle stand 2 and big needle stand 1, and be in the consideration of safety and sanitation because of big or small needle stand value of interference fit, mold insert 3 adopts medical grade rubber TPE.
As shown in Figure 3, big needle stand 1 endoporus is divided into hole section 14, mold insert mounting groove 16 and following hole section 15.
As shown in Figure 5, described little needle stand 2 profiles are divided into minor diameter epimere 21 and major diameter hypomere 22, and form a boss 23 in the junction of epimere 21 and hypomere 22.At this, hole section 14, mold insert 3 endoporus cooperate on epimere 21 and the big needle stand, and boss 23 mold inserts 3 bottom surfaces offset, and hypomere 22 and syringe installing hole are equipped with.From the above, compare original structure, big needle stand 1 endoporus only is divided into hole section 14, mold insert mounting groove 16 and following hole section 15, and the profile of little needle stand 2 only is divided into minor diameter epimere 21 and major diameter hypomere 22, further simplify large and small needle stand mating surface structure, be convenient to processing and assembling.
Before not assembling with syringe cylinder, size needle stand 1,2 and sheath 4 can be considered one module are installed, 1,2 lockings of size needle stand realize by entry needle sheath 4, be specially, when big needle stand 1 cooperated with sheath 4, sheath 4 pushed ratchet structures 12, and the locking mechanism of big needle stand 1 head is produced inside extruding force, locking mechanism further produces extruding to little needle stand 2, realizes locking.
Claims (9)
1. a disposible safety syringe needle stand structure-improved is made up of big needle stand and little needle stand, it is characterized in that: described big needle stand head is provided with the locking mechanism that strengthens compression deformation amount in it.
2. needle stand structure-improved as claimed in claim 1 is characterized in that: described locking mechanism is made up of at least two grooves that are arranged on big needle stand head.
3. needle stand structure-improved as claimed in claim 1 or 2 is characterized in that: the big relatively needle stand head of described groove is circularly and evenly distributed.
4. as claim 1 or described needle stand structure-improved, it is characterized in that: described groove can be divided into several groups, and is that the big relatively needle stand head of unit is circularly and evenly distributed with the group.
5. needle stand structure-improved as claimed in claim 1 or 2 is characterized in that: described little needle stand is provided with the mold insert that strengthens sealing with big needle stand junction.
6. needle stand structure-improved as claimed in claim 5 is characterized in that: described mold insert adopts medical grade rubber TPE.
7. needle stand structure-improved as claimed in claim 1 or 2 is characterized in that: described big needle stand exterior bottom is provided with and can forms the snap fit tabs that is threaded with the groove of syringe head.
8. needle stand structure-improved as claimed in claim 1 or 2 is characterized in that: middle and upper part, the described big needle stand outside is provided with the ratchet that engages with sheath, and when assembling with sheath, sheath produces inside extruding force to big needle stand locking mechanism.
9. needle stand structure-improved as claimed in claim 5 is characterized in that: the endoporus of described big needle stand is divided into hole section, mold insert mounting groove and following hole section; The profile of little needle stand is divided into minor diameter epimere and major diameter hypomere, and forms a boss in the junction of epimere and hypomere, and hole section, mold insert endoporus cooperate on its medium-small diameter epimere and the big needle stand, and boss and mold insert bottom surface offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203081984U CN201469824U (en) | 2009-08-18 | 2009-08-18 | Improved structure for disposable safe injector needle file |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203081984U CN201469824U (en) | 2009-08-18 | 2009-08-18 | Improved structure for disposable safe injector needle file |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201469824U true CN201469824U (en) | 2010-05-19 |
Family
ID=42406062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203081984U Expired - Fee Related CN201469824U (en) | 2009-08-18 | 2009-08-18 | Improved structure for disposable safe injector needle file |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201469824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109718429A (en) * | 2019-02-15 | 2019-05-07 | 贝普医疗科技有限公司 | A kind of safe insulin needle |
-
2009
- 2009-08-18 CN CN2009203081984U patent/CN201469824U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109718429A (en) * | 2019-02-15 | 2019-05-07 | 贝普医疗科技有限公司 | A kind of safe insulin needle |
| CN109718429B (en) * | 2019-02-15 | 2024-01-16 | 贝普医疗科技股份有限公司 | Safety insulin needle |
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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: 20141014 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141014 Address after: 201400 Shanghai City, Fengxian District Hangzhou Highway No. 1888 building Sixth Patentee after: SHANGHAI JUMIN BIOLOGICAL TECHNOLOGY CO., LTD. Address before: 201400 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: 20100519 Termination date: 20160818 |