CN203898855U - Externally-pulled protective sleeve type self-destruction injection syringe - Google Patents
Externally-pulled protective sleeve type self-destruction injection syringe Download PDFInfo
- Publication number
- CN203898855U CN203898855U CN201420317689.6U CN201420317689U CN203898855U CN 203898855 U CN203898855 U CN 203898855U CN 201420317689 U CN201420317689 U CN 201420317689U CN 203898855 U CN203898855 U CN 203898855U
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- China
- Prior art keywords
- self
- destruction
- syringe
- protection sleeve
- needle
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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 - Fee Related
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Abstract
The utility model discloses an externally-pulled protective sleeve type self-destruction injection syringe. The externally-pulled protective sleeve type self-destruction injection syringe comprises a needle tube, a core rod, a needle bed, a syringe needle, a rotating lock fixed on the needle bed, a self-destruction protective sleeve tube and a protective cap. A plurality of limiting edges with the lengths extending in the axis direction of the needle bed are evenly distributed on the periphery of the needle bed, the self-destruction protective sleeve tube is arranged on the needle tube in a sleeved mode, the protective cap is arranged on the top of the self-destruction protective sleeve in a sleeved mode, and the syringe needle is stored in the protective cap. The top of the self-destruction protective sleeve tube is in hard fit with the rotating lock. According to the externally-pulled protective sleeve type self-destruction injection syringe, after the self-destruction protective sleeve tube is externally pulled, the self-destruction protective sleeve tube is then rotated, so that the syringe needle is contained in a cylindrical cavity of the self-destruction protective sleeve tube, the self-destruction effect is achieved, and puncture wounds are effectively prevented.
Description
Technical field
This utility model relates to injector for medical purpose field, particularly a kind of outer protection shell type self-destroyed syringe that draws.
Background technology
Self-destruction syringe is can prevent reusable disposable syringe product after using, kind is various, after injection, rely on craft or mechanical forces, push rod can not be extracted out in syringe, reach self-locking, or make the sealing property of piston destroyed, or the push rod of syringe can be pushed off, finally reach the object that prevents recycling.
But also outer drawing protected shell type self-destroyed syringe on the market at present.
Utility model content
The purpose of this utility model is to provide a kind of outer protection shell type self-destroyed syringe that draws, and this outer protection shell type self-destroyed syringe that draws has advantages of shielding acupuncture.
The technical problem that this utility model solves can realize by the following technical solutions:
A kind of outer protection shell type self-destroyed syringe that draws, comprising:
Syringe;
Be arranged on the core bar in described syringe, the front end of described core bar is provided with piston;
Be arranged on the needle stand of described syringe front end;
Through the syringe needle of pin hole in described needle stand;
It is characterized in that, the circumferential uniform position-limited edge of some length along described needle stand axis direction stretching, extension that be provided with on the outer peripheral face of described needle stand, described in each, the middle part of position-limited edge offers a stopper slot, and described position-limited edge tail end external diameter is greater than front end external diameter, and described position-limited edge front end is evagination segmental arc;
Also comprise:
One rotation lock, described rotation lock comprises bottom cylindrical shell and is coaxially arranged on the top hollow square column of described bottom cylinder top, the junction, four sides of described top hollow square column offers the rotary stopper groove extending along axis direction, the outer surface of described bottom cylindrical shell is circumferentially uniform offers four axial slides, in each axial slide, be provided with a limiting stand, see along axis direction, stagger in described four axial slides and described four rotary stopper groove intervals, the external diameter of the catercorner length of described top hollow square column and described bottom cylindrical shell is suitable, the external diameter of described bottom cylindrical shell is greater than described syringe internal diameter, the inner chamber of the inner chamber of described bottom cylindrical shell and described top hollow square column forms the spacing cylindrical cavity inserting for the position-limited edge of described needle stand, the upper inside wall of described spacing cylindrical cavity is circumferentially provided with the convex spacing ring limit suitable with the stopper slot of the position-limited edge of described needle stand, the below inwall on described convex spacing ring limit circumferentially offers the limit sliding chutes that the position-limited edge tail end of the described needle stand of some confessions slips into,
One is set in the self-destruction protection sleeve on described syringe, the bottom cylindrical shell external diameter of the internal diameter of described self-destruction protection sleeve and described rotation lock is suitable, the top inwall of described self-destruction protection sleeve is provided with the soft convex spacing ring limit firmly coordinating with described rotation lock, the top inner wall of described self-destruction protection sleeve is also circumferentially evenly equipped with the soft axial limiting bar that some and described four axial slides and described rotary stopper groove coordinate, the bottom interior wall of described self-destruction protection sleeve is provided with the sleeve convex spacing ring limit that coordinates its position-limiting action with described bottom cylinder body bottom, the length of described self-destruction protection sleeve is greater than described needle stand and adds the length of syringe needle,
One is set in described self-destruction protection sleeve top and described syringe needle is accommodated in to interior helmet.
In a preferred embodiment of the present utility model, the outer tube wall of described self-destruction protection sleeve is also provided with and lifts ring limit.
In a preferred embodiment of the present utility model, described in each, axial slide comprises the V-type groove that Open Side Down and the straight type groove that is connected to described V-type groove top.
In a preferred embodiment of the present utility model, the bottom of described soft axial limiting bar is provided with to projecting inward inner raised edge.
In a preferred embodiment of the present utility model, the bottom outer peripheral edges of described bottom cylindrical shell also offer spacing ring-shaped step, and the internal diameter on the external diameter of described spacing ring-shaped step and described sleeve convex spacing ring limit adapts.
Principle of the present utility model is as follows:
When normal use, needle stand inserts in the spacing cylindrical cavity of rotation lock inside, and close in the stopper slot on the position-limited edge of needle stand outer peripheral face and convex spacing ring checkpost, and the tail end of position-limited edge inserts in limit sliding chutes, rotary lock is fixed on needle stand, and can not rotate and radially, axially movable; And the top of self-destruction protection sleeve coordinates firmly by soft convex spacing ring limit and rotation lock realization, be set in rotation lock.After injection, self-destruction protection sleeve is pulled outward, make self-destruction protection sleeve along syringe axially to front slide, and soft axial limiting bar slides along axial slide, the radially activity of limiting stand restriction self-destruction protection sleeve, in the time that the bottom of rotation lock is conflicted on sleeve convex spacing ring limit, and now soft axial limiting bar is deviate from axial slide, self-destruction protection sleeve is rotated to an angle, the bottom of soft axial limiting bar is fallen within the rotary stopper groove of top hollow square column, make rotation lock and self-destruction protection sleeve locking, now can not rotate can not be axial for self-destruction protection sleeve, radially movable, make syringe needle be contained in the cylinder intracavity of self-destruction protection sleeve, reach self-destruction effect.
Owing to having adopted technical scheme as above, this utility model rotates self-destruction protection sleeve after drawing self-destruction protection sleeve outward again, makes syringe needle be contained in the cylinder intracavity of self-destruction protection sleeve, reaches self-destruction effect, effectively prevents from stabbing.
Brief description of the drawings
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of embodiment of this utility model.
Fig. 2 is the partial structurtes explosive view of Fig. 1.
Fig. 3 is the structural representation of the helmet in Fig. 1.
Fig. 4 is the structural representation of the rotation lock in Fig. 1.
Fig. 5 is that the A of Fig. 4 is to view.
Fig. 6 is the longitudinal section of Fig. 4.
Fig. 7 is that the B of Fig. 4 is to view.
Fig. 8 is that C-C in Fig. 7 is to cutaway view.
Fig. 9 is the syringe of Fig. 1 and the structural representation of needle stand.
Figure 10 is the I place enlarged drawing of Fig. 9.
Figure 11 is the top view of Fig. 9.
Figure 12 is the structural representation of the self-destruction protection sleeve in Fig. 1.
Figure 13 is the longitudinal section in Figure 12.
Figure 14 is the top view of Figure 12.
Figure 15 is the structural representation of self-destruction after a kind of embodiment injection of this utility model.
Detailed description of the invention
For technological means, creation characteristic that this utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth this utility model.
Draw protection shell type self-destroyed syringe outward referring to the one shown in Fig. 1 and Fig. 2; comprise syringe 100; syringe 100 inside are provided with core bar 200; the front end of core bar is provided with piston 210; the front end of syringe 100 is provided with needle stand 300; syringe needle 400 passes the interior pin hole 301 of needle stand 300, and is fixed on needle stand 300 by glue 302.Be fixed with rotation lock 500 in needle stand 300 peripheries, have a self-destruction protection sleeve 600 at syringe 100 overcoats, the top inwall of self-destruction protection sleeve 600 coordinates firmly with rotation lock 500, and on self-destruction protection sleeve 600, also cover has a helmet 700, protection syringe needle 400.
Specifically introduce each parts below in conjunction with Fig. 3 to Figure 14:
Shown in Figure 3, the lower end inwall of helmet 700 is circumferentially provided with soft annular boss 710, is realized and being firmly fixed with self-destruction protection sleeve 600 outer surface of cupular part by this soft annular boss 710.
Referring to shown in Fig. 4 to Fig. 8, rotation lock 500 comprises bottom cylindrical shell 510 and is coaxially arranged on the top hollow square column 520 of bottom cylinder top, and the junction, four sides of top hollow square column 520 offers the rotary stopper groove 521 extending along axis direction.The outer surface of bottom cylindrical shell 510 is circumferentially uniform offers four axial slides, for better assembling, axial slide in the present embodiment comprises the V-type groove 512 that Open Side Down and is connected to the straight type groove 513 at V-type groove 512 tops, in straight type groove 513, be provided with soft limiting stand 514, seeing along axis direction, staggers in four axial slides and four rotary stopper groove 521 intervals.
The external diameter of the catercorner length of top hollow square column 520 and bottom cylindrical shell 510 is suitable, external diameter than bottom cylindrical shell 510 is smaller, the external diameter of bottom cylindrical shell 510 is slightly larger than syringe 100 internal diameters, the inner chamber of the inner chamber of bottom cylindrical shell 510 and top hollow square column 520 forms spacing cylindrical cavity 530, the upper inside wall of spacing cylindrical cavity 530 is circumferentially provided with convex spacing ring limit 531, and the below inwall on convex spacing ring limit 531 circumferentially offers eight limit sliding chutes 532.The bottom outer peripheral edges of bottom cylindrical shell 510 also offer spacing ring-shaped step 511.
Referring to shown in Fig. 9 to Figure 11, the circumferential uniform position-limited edge 310 of four length along needle stand 300 axis directions stretching, extensions that be provided with on the outer peripheral face of needle stand 300, the middle part of each position-limited edge 310 offers a stopper slot 312, position-limited edge 310 tail end 313 external diameters are greater than front end external diameter, and position-limited edge 310 front ends are evagination segmental arc 311, convenient for assembly.
Referring to shown in Figure 12 to Figure 14; bottom cylindrical shell 510 external diameters of the internal diameter of self-destruction protection sleeve 600 and rotation lock 500 are suitable; the top inwall of self-destruction protection sleeve 600 is provided with the soft convex spacing ring limit 610 firmly coordinating with rotation lock 500; the top inner wall of self-destruction protection sleeve 610 is also circumferentially evenly equipped with the 6 a pair of soft axial limiting bars 620 that coordinate with four axial slides and rotary stopper groove 521, and the top of soft axial limiting bar 620 and bottom are respectively arranged with to projecting inward inner raised edge 621,622.The bottom interior wall of self-destruction protection sleeve 610 is provided with the sleeve convex spacing ring limit 630 that coordinates its position-limiting action with bottom cylindrical shell 510 bottoms; the length of self-destruction protection sleeve 600 is greater than needle stand 300 and adds the length of syringe needle 400, to ensure that syringe needle 400 can be contained in completely in self-destruction protection sleeve 600 after self-destruction.Self-destruction protection sleeve 600 is pulled outward when the self-destruction for convenient, the outer tube wall of self-destruction protection sleeve 600 is also provided with and lifts ring limit 640, and this lifts ring limit 640 and can also play and the position-limiting action of helmet 700.
When this utility model assembling; first self-destruction protection sleeve 600 is enclosed within to syringe 100 bottoms; again needle stand 300 is inserted in the spacing cylindrical cavity 530 of rotation lock 500 inside; stopper slot 312 on four position-limited edges 310 of needle stand 300 outer peripheral faces engages with convex spacing ring limit 531; and the tail end 313 of position-limited edge 310 inserts in limit sliding chutes 532; rotation lock 500 is fixed on needle stand 300, and can not rotate and radially, axially movable.Then self-destruction protection sleeve 600 is up pushed up along syringe 100; make the top of self-destruction protection sleeve 600 realize and firmly coordinating with rotation lock 500 by soft convex spacing ring limit 610; be set in rotation lock 500; now soft convex spacing ring limit 610 slides in the axial slide of bottom cylindrical shell 510, between rotation lock 500 and self-destruction protection sleeve 600, can not relatively rotate.Finally put helmet 700 and load onto core bar 200.
Shown in Figure 15, after injection, self-destruction protection sleeve 600 is pulled outward, make self-destruction protection sleeve 600 along syringe 100 axially to front slide, and soft axial limiting bar 620 slides along the axial slide of bottom cylindrical shell 510, limiting stand 514 limits the radially movable of self-destruction protection sleeve 600, in the time that the spacing ring-shaped step 511 of the bottom of bottom cylindrical shell 510 is conflicted on sleeve convex spacing ring limit 630, and now soft axial limiting bar 620 is deviate from axial slide, self-destruction protection sleeve 600 can rotate, self-destruction protection sleeve 600 is rotated to an angle, the bottom of soft axial limiting bar 620 is fallen within the rotary stopper groove 521 of top hollow square column 520, make rotation lock 500 and self-destruction protection sleeve 600 lockings, now can not rotate can not be axial for self-destruction protection sleeve 600, radially movable, make syringe needle 400 be contained in the cylinder intracavity of self-destruction protection sleeve 600, put again helmet 700, reach self-destruction effect.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; this utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed this utility model.The claimed scope of this utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. draw a protection shell type self-destroyed syringe outward, comprising:
Syringe;
Be arranged on the core bar in described syringe, the front end of described core bar is provided with piston;
Be arranged on the needle stand of described syringe front end;
Through the syringe needle of pin hole in described needle stand;
It is characterized in that, the circumferential uniform position-limited edge of some length along described needle stand axis direction stretching, extension that be provided with on the outer peripheral face of described needle stand, described in each, the middle part of position-limited edge offers a stopper slot, and described position-limited edge tail end external diameter is greater than front end external diameter, and described position-limited edge front end is evagination segmental arc;
Also comprise:
One rotation lock, described rotation lock comprises bottom cylindrical shell and is coaxially arranged on the top hollow square column of described bottom cylinder top, the junction, four sides of described top hollow square column offers the rotary stopper groove extending along axis direction, the outer surface of described bottom cylindrical shell is circumferentially uniform offers four axial slides, in each axial slide, be provided with a limiting stand, see along axis direction, stagger in described four axial slides and described four rotary stopper groove intervals, the external diameter of the catercorner length of described top hollow square column and described bottom cylindrical shell is suitable, the external diameter of described bottom cylindrical shell is greater than described syringe internal diameter, the inner chamber of the inner chamber of described bottom cylindrical shell and described top hollow square column forms the spacing cylindrical cavity inserting for the position-limited edge of described needle stand, the upper inside wall of described spacing cylindrical cavity is circumferentially provided with the convex spacing ring limit suitable with the stopper slot of the position-limited edge of described needle stand, the below inwall on described convex spacing ring limit circumferentially offers the limit sliding chutes that the position-limited edge tail end of the described needle stand of some confessions slips into,
One is set in the self-destruction protection sleeve on described syringe, the bottom cylindrical shell external diameter of the internal diameter of described self-destruction protection sleeve and described rotation lock is suitable, the top inwall of described self-destruction protection sleeve is provided with the soft convex spacing ring limit firmly coordinating with described rotation lock, the top inner wall of described self-destruction protection sleeve is also circumferentially evenly equipped with the soft axial limiting bar that some and described four axial slides and described rotary stopper groove coordinate, the bottom interior wall of described self-destruction protection sleeve is provided with the sleeve convex spacing ring limit that coordinates its position-limiting action with described bottom cylinder body bottom, the length of described self-destruction protection sleeve is greater than described needle stand and adds the length of syringe needle,
One is set in described self-destruction protection sleeve top and described syringe needle is accommodated in to interior helmet.
2. one as claimed in claim 1 is drawn protection shell type self-destroyed syringe outward, it is characterized in that, described in each, axial slide comprises the V-type groove that Open Side Down and the straight type groove that is connected to described V-type groove top.
3. one as claimed in claim 2 is drawn protection shell type self-destroyed syringe outward, it is characterized in that, the bottom of described soft axial limiting bar is provided with to projecting inward inner raised edge.
4. one as claimed in claim 3 is drawn protection shell type self-destroyed syringe outward; it is characterized in that; the bottom outer peripheral edges of described bottom cylindrical shell also offer spacing ring-shaped step, and the internal diameter on the external diameter of described spacing ring-shaped step and described sleeve convex spacing ring limit adapts.
5. the one as described in claim as arbitrary in claim 1 to 4 is drawn protection shell type self-destroyed syringe outward, it is characterized in that, the outer tube wall of described self-destruction protection sleeve is also provided with and lifts ring limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317689.6U CN203898855U (en) | 2014-06-14 | 2014-06-14 | Externally-pulled protective sleeve type self-destruction injection syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317689.6U CN203898855U (en) | 2014-06-14 | 2014-06-14 | Externally-pulled protective sleeve type self-destruction injection syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203898855U true CN203898855U (en) | 2014-10-29 |
Family
ID=51773151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420317689.6U Expired - Fee Related CN203898855U (en) | 2014-06-14 | 2014-06-14 | Externally-pulled protective sleeve type self-destruction injection syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203898855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016138630A1 (en) * | 2015-03-03 | 2016-09-09 | 江苏采纳医疗科技有限公司 | Insulin syringe |
| CN109260551A (en) * | 2018-10-31 | 2019-01-25 | 苏州大学附属第医院 | A kind of medical needle with safeguard protection and self-destroying function |
-
2014
- 2014-06-14 CN CN201420317689.6U patent/CN203898855U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016138630A1 (en) * | 2015-03-03 | 2016-09-09 | 江苏采纳医疗科技有限公司 | Insulin syringe |
| CN109260551A (en) * | 2018-10-31 | 2019-01-25 | 苏州大学附属第医院 | A kind of medical needle with safeguard protection and self-destroying function |
| CN109260551B (en) * | 2018-10-31 | 2024-01-09 | 苏州大学附属第一医院 | Medical needle with safety protection and self-destruction functions |
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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 JUMIN BIOTECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI SHUANGGE INDUSTRIAL CO., LTD. Effective date: 20141015 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141015 Address after: 201400 Shanghai City, Fengxian District Hangzhou Highway No. 1888 building Sixth Patentee after: SHANGHAI JUMIN BIOLOGICAL TECHNOLOGY CO., LTD. Address before: 201400 No. 1888, Shanghai Hangzhou highway, Jianghai Economic Zone, Fengxian District, Shanghai Patentee before: Double-Dove Industrial Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201400 Shanghai City, Fengxian District Hangzhou Highway No. 1888 building Sixth Patentee after: Poly Biological Technology Co Ltd Address before: 201400 Shanghai City, Fengxian District Hangzhou Highway No. 1888 building Sixth Patentee before: SHANGHAI JUMIN BIOLOGICAL TECHNOLOGY 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: 20141029 Termination date: 20190614 |