CN102371015B - Safty pin - Google Patents
Safty pin Download PDFInfo
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- CN102371015B CN102371015B CN201110257728.9A CN201110257728A CN102371015B CN 102371015 B CN102371015 B CN 102371015B CN 201110257728 A CN201110257728 A CN 201110257728A CN 102371015 B CN102371015 B CN 102371015B
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- groove
- needle
- locating slot
- slide block
- draw
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Abstract
Safty pin of the present invention, comprises needle body, the needle guard coordinated with described needle body, the injection tube be connected with described needle body, and described needle guard axially offers chute, and this chute comprises the cannelure and transverse groove that are interconnected; Described transverse groove comprises the locating slot and draw-in groove that are positioned at both sides, described cannelure bottom; Described needle body is provided with slide block near described injection tube one end, and described slide block is suitable for along described slide; Described slider surface is less than the one end towards locating slot to its width of one end of draw-in groove; Described locating slot is at least provided with projection in side towards the opening upper and lower sides of described cannelure.Described like this slide block can be crossed described projection easily and enter in the middle of described cannelure, and once described slide block skids off from described locating slot, because its one end width towards locating slot is larger, so described projection can not be recrossed and get back in described locating slot, should not reuse.
Description
Technical field
The invention belongs to technical field of medical instruments, be specifically related to a kind of safty pin.
Background technology
At present, the syringe that medical industry uses is all disposable syringe; For disposable entry needle, after injection, need to use the spryinge destroying device of specialty to destroy needle portion, to prevent the generation of secondary pollution.But even if use spryinge destroying device, medical personnel are also scratched by syringe needle very easily after injection, cause viral infection, effectively cannot ensure the safety of medical personnel.
For this reason, Chinese patent literature CN1515328A discloses a kind of multifunctional safe trocar device, the needle guard that it comprises a lengthwise cylindrical shell base unit, a set of needle body and being fixed in this lengthwise cylindrical shell base unit is placed on this lengthwise cylindrical shell base unit periphery, described lengthwise cylindrical shell base unit is that front end has a comparatively path body, body rear end has a comparatively large-diameter pipe body, described comparatively large-diameter pipe body in its back-end diameter opposite position is respectively provided with a flange, described two flanges can screw togather or be solidly plugged in the front end of described injection tube, and are provided with a slide block in described comparatively large-diameter pipe body front end peripheral part, described needle body closely overlap be fixed in described lengthwise cylindrical shell base unit front end comparatively path body on, described needle guard is a hollow tube, its periphery has a long chute, described chute comprises always to portion and a transverse groove, wherein, directly comprise a stopper section, front end, a turning point, outer end to portion, described transverse groove then comprises a square location indentations, a locking square groove has one to be located at locking square groove upstream end places restrictions on portion, described in the portion of placing restrictions on be that a slice assembly is connected with the bulk material of safe needle sleeve unit, described needle guard can be placed on the periphery of described cylindrical shell base unit, and the slide block on described cylindrical shell base unit just can move in the cannelure of described needle guard, and be subject to good guiding, when described slide block moves to described stopper section, cannelure front end, the needle body being fixed on described cylindrical shell base unit front end stretches out the front end of needle guard in order to injection use, when described slide block button terminates in the traversing section rear end turning point location indentations of cannelure, described needle body is made to shrink in needle guard and be hidden completely, when described slide block is placed restrictions on portion and is locked in locking square groove described in location indentations is crossed, described slide block and deadlock are in locking square groove, and needle guard can not be moved again, described needle body is made to shrink in needle guard and stop motionless.
Safty pin in technique scheme, first self-align for the slide block of base unit recess is shifted out in use, through traversing section, turning point and moving forward in chute, when described slide block moves to described stopper section, cannelure front end, the needle body being fixed on described cylindrical shell base unit front end stretches out the front end just injectable of needle guard.After injection, needle guard only needs contrary operation, and when namely slide block first moves the location indentations to rear end along the stopper section, front end of chute, turning point, rear end and traversing section, namely needle body is hidden within needle guard once again.When being screwed in a clockwise direction by described base unit, slide block is just crossed by location indentations the portion of placing restrictions on and enters in locking square groove, thus realizes the locking to slide block.Like this, along with the locking of slide block, syringe needle is locked in safe needle sleeve simultaneously, cannot be moved out of use once again, thus ensure that its safety.
Can see from above-mentioned use procedure, after syringe is finished using, needle guard only needs contrary operation, when namely slide block first moves the location indentations to rear end along the stopper section, front end of chute, turning point, rear end and traversing section, namely needle body is hidden within needle guard once again, namely recovers the state before using.So just burying hidden danger for reusing disposable syringe, being easy to cause doctors and patients' superinfection problem.
Summary of the invention
For this reason, technical problem to be solved by this invention enters locking square groove by described slide block is crossed by location indentations the portion of placing restrictions on after syringe of the prior art uses, namely the factory state of syringe can be recovered, thus reuse, easily cause the problem of superinfection, and then factory state cannot be returned to after a kind of use is provided again, effectively can avoid the safty pin of superinfection.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of safty pin, comprises needle body, the needle guard coordinated with described needle body, the injection tube be connected with described needle body; Described needle body comprises the fixture of syringe needle and fixing described syringe needle; Described needle guard is the hollow tube that one end is provided with Needle outlet, and described body axially offers chute, and this chute comprises the cannelure and transverse groove that are interconnected; Described transverse groove comprises the locating slot and draw-in groove that are positioned at described cannelure bottom; Described needle body is provided with slide block near described injection tube one end, and described slide block is suitable for along described slide; The length of described cannelure is more than or equal to the distance of described slide block to needle point, and described slide block to the distance of needle point be greater than described cannelure near Needle outlet one end the distance to described Needle outlet; Described slider surface is less than the one end towards locating slot to its width of one end of draw-in groove; Described locating slot is at least provided with projection in side towards the opening upper and lower sides of described cannelure; Distance between described projection and described locating slot sidewall or the distance between relative two described projections, be less than described slider surface to the width of locating slot one end and be greater than the width of described slider surface to draw-in groove one end.
Described slide block is arranged in " D " shape, and its arc end is towards described draw-in groove, and its flat end is towards described locating slot.
Described draw-in groove is at least provided with projection in side towards the opening upper and lower sides of described cannelure.
Below described draw-in groove, corresponding described raised position place is provided with bottom perforate.
Described bottom perforate ovalize is arranged.
Above described draw-in groove, corresponding described raised position place is provided with top perforate.
Perforate rectangular triangle in described top is arranged.
At described needle guard outer wall, be circumferentially provided with anti-slip ring.
At described needle guard inwall, be provided with below described locating slot and be suitable for the groove that described slide block enters described needle guard when mounted.
One end from described slider surface to draw-in groove its be less than one end towards locating slot relative to the height on fixture surface.
Technical scheme of the present invention has technique effect useful as follows compared to existing technology:
(1) safty pin of the present invention, comprises needle body, the needle guard coordinated with described needle body, the injection tube be connected with described needle body, and described needle body comprises the fixture of syringe needle and fixing described syringe needle; Described needle guard is the hollow tube that one end is provided with Needle outlet, and described body axially offers chute, and this chute comprises the cannelure and transverse groove that are interconnected; Described transverse groove comprises the locating slot and draw-in groove that are positioned at both sides, described cannelure bottom; Described needle body is provided with slide block near described injection tube one end, and described slide block is suitable for along described slide; Described slider surface is less than the one end towards locating slot to its width of one end of draw-in groove; Described locating slot is at least provided with projection in side towards the opening upper and lower sides of described cannelure.
During original state, described slide block button terminates in described locating slot, because described slider surface is less than one end towards locating slot to its width of one end of draw-in groove, described like this slide block can utilize protruding elasticity overcome protruding resistance and enter in the middle of described cannelure easily.And once described slide block skids off from described locating slot, because its one end width towards locating slot is greater than the distance between distance between described projection and described locating slot sidewall or relative two described projections, so can not return in described locating slot.Like this, when described slide block is outside described locating slot, can illustrate that it is used that this safty pin is housed, the secondary having stopped disposable safe pin uses.
(2) safty pin of the present invention, described draw-in groove is at least provided with projection in side towards the opening upper and lower sides of described cannelure.Because described slider surface is less than one end towards locating slot to its width of one end of draw-in groove, described like this slide block can be crossed described projection easily and enter in the middle of described draw-in groove.And once described slide block enters in described draw-in groove, because its one end width towards locating slot is comparatively large, so described projection can not be recrossed and skid off from described draw-in groove.
(3) safty pin of the present invention, below described draw-in groove, corresponding described raised position place is provided with bottom perforate, or above described draw-in groove, corresponding described raised position place is provided with top perforate.The object arranging perforate is, when described slide block for entering into described draw-in groove from described cannelure, part between described projection and described perforate can produce an elastic deformation towards described perforate, thus expands the A/F of described draw-in groove, facilitates entering of described slide block.And after described slide block enters described draw-in groove, elastic deformation disappears, the opening of described draw-in groove recovers original size, and described slider surface is comparatively large to one end width of locating slot in addition, and described like this slide block can not recross described projection and skid off from described draw-in groove.
Accompanying drawing explanation
In order to make the present invention be more clearly understood, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.Wherein,
Fig. 1 is the structure chart of needle body of the present invention;
Fig. 2 is the structure chart of needle guard of the present invention;
Fig. 3 is the upward view of needle guard of the present invention;
Fig. 4 is the state diagram of slide block of the present invention when moving to described cannelure top;
Fig. 5 is the state diagram of slide block button of the present invention when terminating in described locating slot;
Fig. 6 is the state diagram of slide block button of the present invention when terminating in described draw-in groove;
Fig. 7 is the structure chart of the another embodiment of needle guard of the present invention;
Fig. 8 is the state diagram after each assembling components of safty pin of the present invention;
In figure, Reference numeral is expressed as: 1-needle body, 101-syringe needle, 102-fixture, 103-slide block, 2-needle guard, 201-Needle outlet, 202-groove, 3-chute, 301-cannelure, 302-transverse groove, 4-locating slot, 5-draw-in groove, 6-is protruding, 7-perforate, the anti-slip ring of 8-, 9-injection tube.
Detailed description of the invention
Safty pin of the present invention, the needle guard 2 as shown in Figure 8, comprise needle body 1, coordinating with described needle body 1, the injection tube 9 be connected with described needle body 1.As depicted in figs. 1 and 2, described needle body 1 comprises syringe needle 101 and fixture 102; Described needle guard 2 is provided with the hollow tube of Needle outlet 201 for one end, and described body axially offers chute 3, and this chute 3 comprises the cannelure 301 and transverse groove 302 that are interconnected; Described transverse groove 302 comprises the locating slot 4 and draw-in groove 5 that are positioned at described cannelure 301 bottom; Described needle body 1 is provided with slide block 103 near described injection tube 9 one end, and described slide block 103 is suitable for sliding along described chute 3; The length of described cannelure 301 is more than or equal to the distance of described slide block 103 to needle point, and the distance of described slide block 103 to needle point is greater than the distance that described cannelure 301 exports to described syringe needle 101 near syringe needle 101 exit end;
As shown in Figure 3, at described needle guard 2 inwall, be provided with below described locating slot 4 and be suitable for the groove 202 that described slide block 103 enters described needle guard 2 when mounted.Arrange groove 202 can easily described syringe needle 1 be arranged in described needle guard 2.As seen from Figure 4, slide block 103 on described needle body 1 fixture 102 just can move in the cannelure 301 of described needle guard 2, when described slide block 103 moves to described cannelure 301 top, the syringe needle 101 of described needle body 1 stretches out the Needle outlet 201 of needle guard 2 in order to injection use, as can be seen from Fig. 5, Fig. 6, when described slide block 103 button terminates in described locating slot 4 and draw-in groove 5, described needle body 1 is made to retract in needle guard 2 and be hidden completely.
Can see from Fig. 1-Fig. 6, described slide block 103 is less than the one end towards locating slot 4 towards its width of one end of draw-in groove 5; Described locating slot 4 is at least provided with protruding 6 in side towards the opening upper and lower sides of described cannelure 301; Distance between described protruding 6 and described locating slot 4 sidewall or the distance between relative two described protruding 6, be less than described slide block 103 towards the width of locating slot 4 one end and be greater than the width of described slide block 103 towards draw-in groove 5 one end.In the present embodiment, described slide block 103 is arranged in D font, and its arc end is towards described draw-in groove 5, and its flat end towards described locating slot 4, thus makes described slide block 103 be less than the one end towards locating slot 4 towards its width of one end of draw-in groove 5.Described locating slot 4 is provided with protruding 6 on the downside of the opening of described cannelure 301.Described draw-in groove 5 is provided with protruding 6 on the upside of the opening of described cannelure 301, and below described draw-in groove 5, corresponding described protruding 6 positions are provided with bottom perforate 7, and described bottom perforate 7 ovalize is arranged.And at described needle guard 2 outer wall, being circumferentially provided with anti-slip ring 8, the object arranging described anti-slip ring 8 is person's finger grip easy to use.
Fig. 7 gives another embodiment of needle guard 2 described in safty pin of the present invention, draw-in groove 5 described in the present embodiment is relatively set with two projections 6 towards the upper and lower both sides of opening of described cannelure 301, and corresponding described protruding 6 positions of described draw-in groove 5 upper and lower are provided with perforate 7, described top perforate 7 at right angles triangle is arranged, and described bottom perforate 7 ovalize is arranged.
In other embodiment of safe needle sleeve of the present invention, described slide block 103 can be arranged to other any shapes, as long as satisfied its width of one end towards draw-in groove 5 is less than the one end towards locating slot 4, as being arranged to triangle, wherein an edged surface is to locking groove, and relative base is towards locating slot 4.Described locating slot 4 and draw-in groove 5 are at least provided with protruding 6 in side towards the opening upper and lower sides of described cannelure 301, can arrange protruding 6, also can arrange protruding 6 in downside, can also arrange protruding 6 in upper and lower both sides simultaneously in upside.Corresponding described protruding 6 positions, above described draw-in groove 5 or below are provided with top perforate 7 or bottom perforate 7, or arrange described top perforate 7 and bottom perforate 7 simultaneously; Described perforate 7 can be arranged to other any shape, and as circle, rectangle etc., the object arranging perforate 7 is to make the part between described protruding 6 and described perforate 7 produce elastic deformation, facilitates described slide block 103 to enter described draw-in groove 5.
Preferably, described slide block 103 towards draw-in groove 5 one end its be less than one end towards locating slot 4 relative to the height on fixture surface.
Safty pin of the present invention, the fixture 102 of described needle body 1 can be plugged on injection tube 9.As shown in Figure 8, during original state, described slide block 103 button terminates in described locating slot 4.Screw described needle guard 2, described slide block 103 can be made to skid off described locating slot 4 and enter in the middle of described cannelure 301, when described slide block 103 moves to described cannelure 301 front end, the Needle outlet 201 that the needle body 1 be fixed on described injection tube 9 stretches out needle guard 2 uses in order to injection.After injection, needle guard 2 only needs contrary operation, and namely slide block 103 slides back to along described cannelure 301, and namely described needle body 1 is hidden within needle guard 2 once again.Screw described needle guard 2, slide block 103 can be made to enter in draw-in groove 5.Continue to screw described needle guard 2 described needle sleeve to be unloaded from described injection tube 9.
When described slide block 103 button terminates in described locating slot 4, because described slide block 103 is less than one end towards locating slot 4 towards its width of one end of draw-in groove 5, described like this slide block 103 can utilize the elasticity of protruding 6 overcome the resistance of protruding 6 and enter in the middle of described cannelure 301 easily.And once described slide block 103 skids off from described locating slot 4, because its one end width towards locating slot 4 is comparatively large, so can not return in described locating slot 4.Like this, when described slide block 103 is outside described locating slot 4, can illustrate that it is used that this safty pin is housed, the secondary having stopped disposable safe pin uses.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments, and thus the apparent change of extending out or variation be still among the protection domain of the invention claim.
Claims (10)
1. a safty pin, comprises needle body, the needle guard coordinated with described needle body, the injection tube be connected with described needle body;
Described needle body comprises the fixture of syringe needle and fixing described syringe needle;
Described needle guard is the hollow tube that one end is provided with Needle outlet, and described body axially offers chute, and this chute comprises the cannelure and transverse groove that are interconnected; Described transverse groove comprises the locating slot and draw-in groove that are positioned at described cannelure bottom;
Described needle body is provided with slide block near described injection tube one end, and described slide block is suitable for along described slide;
The length of described cannelure is more than or equal to the distance of described slide block to needle point, and described slide block to the distance of needle point be greater than described cannelure near Needle outlet one end the distance to described Needle outlet;
It is characterized in that: described slider surface is less than the one end towards locating slot to its width of one end of draw-in groove; Described locating slot is at least provided with projection in side towards the opening upper and lower sides of described cannelure; Distance between described projection and described locating slot sidewall or the distance between relative two described projections, be less than described slider surface to the width of locating slot one end and be greater than the width of described slider surface to draw-in groove one end.
2. safty pin according to claim 1, is characterized in that, described slide block is arranged in " D " shape, and its arc end is towards described draw-in groove, and its flat end is towards described locating slot.
3. safty pin according to claim 1 and 2, is characterized in that, described draw-in groove is at least provided with projection in side towards the opening upper and lower sides of described cannelure.
4. safty pin according to claim 3, is characterized in that, below described draw-in groove, corresponding described raised position place is provided with bottom perforate.
5. safty pin according to claim 4, is characterized in that, described bottom perforate ovalize is arranged.
6. the safty pin according to claim 4 or 5, is characterized in that, above described draw-in groove, corresponding described raised position place is provided with top perforate.
7. safty pin according to claim 6, is characterized in that, perforate rectangular triangle in described top is arranged.
8. the safty pin according to claim 1 or 2 or 4 or 5 or 7, is characterized in that, at described needle guard outer wall, be circumferentially provided with anti-slip ring.
9. the safty pin according to claim 1 or 2 or 4 or 5 or 7, is characterized in that, at described needle guard inwall, be provided with and be suitable for the groove that described slide block enters described needle guard when mounted below described locating slot.
10. the safty pin according to claim 1 or 2 or 4 or 5 or 7, is characterized in that, one end from described slider surface to draw-in groove its be less than one end towards locating slot relative to the height on fixture surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257728.9A CN102371015B (en) | 2011-09-02 | 2011-09-02 | Safty pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257728.9A CN102371015B (en) | 2011-09-02 | 2011-09-02 | Safty pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102371015A CN102371015A (en) | 2012-03-14 |
| CN102371015B true CN102371015B (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110257728.9A Active CN102371015B (en) | 2011-09-02 | 2011-09-02 | Safty pin |
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| Country | Link |
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| CN (1) | CN102371015B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706410B (en) * | 2012-09-29 | 2015-09-30 | 益善生物技术股份有限公司 | Liquid transfer intercommunicating device and transfer method |
| CN109771079A (en) * | 2019-03-05 | 2019-05-21 | 高爱文 | A kind of continuous syringe of animal doctor |
| CN114225158B (en) * | 2021-12-25 | 2023-08-29 | 南华大学 | Puncture-proof injector and self-destruction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108140A (en) * | 1994-03-08 | 1995-09-13 | 陈俊雄 | Safety syringe reservoir of closing gate type |
| CN1515328A (en) * | 2003-01-08 | 2004-07-28 | 汪贤宗 | Multifunctional safety needle cover device |
| CN202366271U (en) * | 2011-09-02 | 2012-08-08 | 汪贤宗 | Safety needle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1953776B (en) * | 2004-04-30 | 2010-04-28 | 杨章民 | A disposable safety injector |
| CN2877738Y (en) * | 2006-03-28 | 2007-03-14 | 李健全 | Disposable completely self-destroyable safety syringe |
-
2011
- 2011-09-02 CN CN201110257728.9A patent/CN102371015B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108140A (en) * | 1994-03-08 | 1995-09-13 | 陈俊雄 | Safety syringe reservoir of closing gate type |
| CN1515328A (en) * | 2003-01-08 | 2004-07-28 | 汪贤宗 | Multifunctional safety needle cover device |
| CN202366271U (en) * | 2011-09-02 | 2012-08-08 | 汪贤宗 | Safety needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102371015A (en) | 2012-03-14 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20171211 Address after: 515300 Guangdong province Puning City quicksand North Nanyuan Industrial Zone Patentee after: GUANGDONG HAIOU MEDICAL APPARATUS STOCK Co.,Ltd. Address before: 518104, No. 267-269, Wan An Road, Wan Feng Village, manholes Town, Guangdong, Shenzhen Patentee before: Wang Xianzong |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Safety needle Effective date of registration: 20230324 Granted publication date: 20160420 Pledgee: Agricultural Bank of China Limited Puning City Branch Pledgor: GUANGDONG HAIOU MEDICAL APPARATUS STOCK Co.,Ltd. Registration number: Y2023980036077 |
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