CN202982818U - Safety protection sleeve for two-piece safety insulin injection syringe - Google Patents
Safety protection sleeve for two-piece safety insulin injection syringe Download PDFInfo
- Publication number
- CN202982818U CN202982818U CN 201220689336 CN201220689336U CN202982818U CN 202982818 U CN202982818 U CN 202982818U CN 201220689336 CN201220689336 CN 201220689336 CN 201220689336 U CN201220689336 U CN 201220689336U CN 202982818 U CN202982818 U CN 202982818U
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- CN
- China
- Prior art keywords
- chute
- syringe
- needle
- edge
- protection sleeve
- 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 - Lifetime
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Abstract
The utility model discloses a safety protection sleeve for a two-piece safety insulin injection syringe. The safety protection sleeve comprises a needle protection sleeve, a locating ring and a bushing, wherein the a strip-shaped slide chute is formed in the wall surface of the needle protection sleeve; the chute wall on one side of the upper part of the slide chute extends to form a locating edge; the chute wall on one side of the lower part of the slide chute extends to form a locking edge with a latch function; an inversed-L shaped branch groove is formed in the middle of the slide chute in a separating manner; the groove wall on one side of the middle of the branch groove extends to form a fixing edge; the locating ring is clipped at the top of a syringe cylinder; a slide block is arranged on the surface in a protruding manner; the slide block can slide in the slide chute, and the branch groove is limited by the locating edge, the locking edge and the fixing edge; the injection syringe cylinder is glidingly sleeved with the bushing; and the bushing is connected to the tail end of the syringe protection sleeve. The safety protection sleeve has the advantages that the structure is simple, the cost is low, and the like. Besides, when the safety protection sleeve is stand-by, a temporary protection effect on the syringe can be provided, dangers of a syringe needle to human bodies by accident in the stand-by process are avoided, and the operation is very simple and convenient.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of safety protective cover for the safe insulin syringe of two-piece type.
Background technology
Granted publication number for the Chinese utility model patent of CN 2719316Y discloses a kind of entry needle with after the needle tubing safe re-covering device, as shown in Figure 1, this entry needle comprises syringe 10, needle tubing 12, needle stand 13 and needle cover 40, this needle tubing re-covering device comprise one on syringe cylinder 10 combination protect needle guard 20 ', one be sandwiched in this protect needle guard 20 ' and syringe 10 between centring ring 30 ', and one be nested with this protect the lining 33 of needle guard 20 ' tail end ', described protect needle guard 20 ', have a spatial accommodation corresponding with syringe 10 shapes, its wall cut a chute 24 that is strip ', its end face 21 ' central authorities be provided with a perforation 22 that penetrates for needle tubing 12 and needle stand 13, the aperture of this perforation 22 also must be complementary with the external diameter of the needle cover 40 of entry needle, wherein:
A location edge 241 extends on a side channel wall on this chute 24 ' top;
A locking edge 242 with breech lock effect extends on a side channel wall of this chute 24 ' bottom; And
This chute 24 ' the centre tell a discrimination groove 243 that is the shape of falling L, this discrimination groove 243 is broken cut to protect needle guard 20 ' the bottom;
Described centring ring 30 ' clamp is at syringe 10 tops, its surface convex with a slide block 31 ', this slide block 31 ' width with protect needle guard 20 ' chute 24 ', the width of discrimination groove 243 is complementary, make this slide block 31 ' can chute 24 ', slippage and only be subject to location edge 241 and locking edge 242 in discrimination groove 243;
Described lining 33 ' slide on syringe cylinder 10, and be engaged on described protect needle guard 20 ' tail end, move on it and be subject to supporting of centring ring 30 ' bottom;
Protecting on needle guard 20 ' wall of described chute 24 ' side, namely the side of location edge 241, also be provided with the side channel 244 of elastic reaction together.
When entry needle is in original product, the chute 24 of slide block 31 ' be positioned at location edge 241 tops ' in, also namely prevented when syringe from using protect needle guard 20 ' movement, entry needle can use as long as take out needle cover 40 before using.
After entry needle uses, syringe 10 is pulled down, fixing centring ring 30 on syringe 10 ' slide block 31 ' chute 24 ' in move down, when be obstructed in locking edge 242 places of slide block 31 ' move to chute 24 ' bottom, firmly can pass through, due to 242 overhead kicks of locking edge, make the chute 24 of slide block 31 ' firmly be locked in locking edge 242 belows ' in, at this moment, the needle tubing 12 with sharpened tip be accommodated in fully protect needle guard 20 ' in, avoided needle point to stab dangerous generation.
although above-mentioned safe re-covering device is applied to the safe insulin syringe of two-piece type, can avoid the accidental needle sticks human body, but, due to when the chute 24 of slide block 31 ' firmly be locked in locking edge 242 belows ' middle, have that the needle tubing 12 of sharpened tip is fully locked is protecting needle guard 20 ' interior, so need fractional injection or first aspirate insulin running into, after a while the injection situation the time, this safe re-covering device can't be realized needle tubing being placed in for 12 times and protect needle guard 20 ' interior stand-by function temporarily, make injection personnel or patient that the danger of being stabbed by the syringe needle accident be arranged in this process.
Summary of the invention
The purpose of this utility model provides a kind of safety protective cover for the safe insulin syringe of two-piece type exactly in order to address the above problem.
The purpose of this utility model is achieved in that
a kind of safety protective cover for the safe insulin syringe of two-piece type of the present utility model, the safe insulin syringe of described two-piece type comprises syringe, needle tubing, needle stand and needle cover, described safety protective cover comprises and protects needle guard, centring ring and lining, the described needle guard wall that protects is cut a chute that is strip, a location edge extends on a side channel wall on this chute top, a locking edge with breech lock effect extends on a side channel wall of this chute bottom, and tell a discrimination groove that is the shape of falling L in the centre of this chute, described centring ring clamp is at the syringe top, its surface convexes with a slide block, described lining slides on syringe, and be engaged on the described tail end that protects needle guard, a fixed edge extends on the one side channel wall at described discrimination groove middle part, and this fixed edge and described locking edge are positioned on same circumference, the slippage and be subject to fixed edge in the discrimination groove of described chute.
Above-mentioned a kind of safety protective cover for the safe insulin syringe of two-piece type, wherein, described fixed edge is the projection that is "＜" shape.
Above-mentioned a kind of safety protective cover for the safe insulin syringe of two-piece type, wherein, it is trapezoidal that described slide block is chamfer, and its oblique waist limit is towards described fixed edge place side.
This utility model is set up fixed edge in the discrimination groove, make slide block can be positioned in the discrimination groove of fixed edge below, and this moment, needle tubing returns to be placed in and protects in needle guard, avoid the accidental needle sticks human body, when needing injection, a little firmly slide block can be skidded off fixed edge, make needle tubing expose and protect needle guard, can inject.
The utlity model has simple in structure, low cost and other advantages.And, treating the used time, can play the effect of provisional protection to needle tubing, avoided the danger of accidental needle sticks human body in this process, operate very easy.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the needle tubing safe re-covering device after existing entry needle is used;
Fig. 2 is three-dimensional exploded view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See also Fig. 1, there is shown the safety protective cover that this utility model is used for the safe insulin syringe of two-piece type.The safe insulin syringe of two-piece type comprises syringe 10, needle tubing 12, needle stand 13 and needle cover 40; this utility model safety protective cover comprise protect needle guard 20 ', centring ring 30 ' and lining 33 '; protect needle guard 20 ' a have spatial accommodation corresponding with syringe 10 shapes; its wall cut a chute 24 that is strip '; its end face 21 ' central authorities be provided with a perforation 22 that penetrates for needle tubing 12 and needle stand 13; the aperture of this perforation 22 also must be complementary with the external diameter of the needle cover 40 of entry needle, wherein:
A location edge 241 extends on the right side cell wall on this chute 24 ' top;
A locking edge 242 with breech lock effect extends on the left side cell wall of this chute 24 ' bottom; And
This chute 24 ' the centre tell a discrimination groove 243 that is the shape of falling L, this discrimination groove 243 is broken cut to protect needle guard 20 ' the bottom, a fixed edge 245 extends on the right side cell wall at discrimination groove 243 middle parts, and this fixed edge 245 is positioned on same circumference with locking edge 242, protecting on needle guard 20 ' wall of chute 24 ' side, be the side of location edge 241, also be provided with the side channel 244 of elastic reaction together;
Centring ring 30 ' clamp is at syringe 10 tops, its surface convex with a slide block 31 ', this slide block 31 ' width with protect the chute 24 of needle guard ', the width of discrimination groove 243 is complementary, make this slide block 31 ' can chute 24 ', slippage and be subject to location edge 241, locking edge 242 and fixed edge 245 in discrimination groove 243, slide block 31 ' be chamfer is trapezoidal, and the trapezoidal oblique waist limit of this chamfer is towards fixed edge 245 place sides, namely towards the right side;
Lining 33 ' slide on syringe 10, and be engaged on protect needle guard 20 ' tail end, move on it and be subject to supporting of centring ring 30 ' bottom;
When the safe insulin syringe of two-piece type is in original product, the chute 24 of slide block 31 ' be positioned at location edge 241 tops ' in, also namely prevented when syringe from using protect needle guard 20 ' movement, entry needle can use as long as take out needle cover 40 before using.
After the suction insulin or after having injected the part insulin, when the safe insulin syringe of two-piece type is in dormant state, fixing centring ring 30 on syringe 10 ' slide block 31 ' chute 24 ' in move down, and enter discrimination groove 243, when be obstructed in fixed edge 245 places at slide block 31 ' move to discrimination groove 243 middle parts, firmly can pass through, the needle tubing 12 that have sharpened tip this moment be accommodated in fully protect needle guard 20 ' in, avoided needle point to stab dangerous generation; When again needing to inject, by with syringe 10 to up pushing away, fixing centring ring 30 on syringe 10 ' slide block 31 ' move up in discrimination groove 243, and reenter chute 24 ' in, when be obstructed in location edge 241 places that continue to be moved upward to chute 24 ' top, firmly can pass through, this moment, needle tubing 12 exposed fully, and then injected.
After the safe insulin syringe of two-piece type is finished using, syringe 10 is pulled down, fixing centring ring 30 on syringe 10 ' slide block 31 ' chute 24 ' in move down, when be obstructed in locking edge 242 places of slide block 31 ' move to chute 24 ' bottom, firmly can pass through, due to 242 overhead kicks of locking edge, make the chute 24 of slide block 31 ' firmly be locked in locking edge 242 belows ' in, at this moment, needle tubing 12 with sharpened tip be accommodated in fully protect needle guard 20 ' in, avoided needle point to stab dangerous generation.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that do not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (3)
1. safety protective cover that is used for the safe insulin syringe of two-piece type, the safe insulin syringe of described two-piece type comprises syringe (10), needle tubing (12), needle stand (13) and needle cover (40), described safety protective cover comprises and protects needle guard (20 '), centring ring (30 ') and lining (33 '), described needle guard (20 ') wall that protects is cut a chute (24 ') that is strip, a location edge (241) extends on a side channel wall on this chute (24 ') top, extension one has the locking edge (242) of breech lock effect on a side channel wall of this chute (24 ') bottom, and tell a discrimination groove (243) that is the shape of falling L in the centre of this chute (24 '), described centring ring (30 ') clamp is at syringe (10) top, its surface convexes with a slide block (31 '), described lining (33 ') slides on syringe (10), and be engaged on the described tail end that protects needle guard (20 '), it is characterized in that, a fixed edge (245) extends on the one side channel wall at described discrimination groove (243) middle part, and this fixed edge (245) is positioned on same circumference with described locking edge (242), described chute (24 ') can be in discrimination groove (243) slippage and be subject to fixed edge (245).
2. a kind of safety protective cover for the safe insulin syringe of two-piece type as claimed in claim 1, is characterized in that, described fixed edge (245) is the projection that is "＜" shape.
3. a kind of safety protective cover for the safe insulin syringe of two-piece type as claimed in claim 1, is characterized in that, it is trapezoidal that described slide block (31 ') is chamfer, and its oblique waist limit is towards described fixed edge (245) place side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689336 CN202982818U (en) | 2012-12-13 | 2012-12-13 | Safety protection sleeve for two-piece safety insulin injection syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689336 CN202982818U (en) | 2012-12-13 | 2012-12-13 | Safety protection sleeve for two-piece safety insulin injection syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202982818U true CN202982818U (en) | 2013-06-12 |
Family
ID=48554052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220689336 Expired - Lifetime CN202982818U (en) | 2012-12-13 | 2012-12-13 | Safety protection sleeve for two-piece safety insulin injection syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202982818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3141276A4 (en) * | 2014-10-29 | 2017-08-23 | Promised Hangzhou Meditech Co., Ltd. | Safety insulin pen needle |
| CN109475682A (en) * | 2016-07-18 | 2019-03-15 | 拜耳医药保健有限公司 | Fluid injector and its patient's external member |
-
2012
- 2012-12-13 CN CN 201220689336 patent/CN202982818U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3141276A4 (en) * | 2014-10-29 | 2017-08-23 | Promised Hangzhou Meditech Co., Ltd. | Safety insulin pen needle |
| CN109475682A (en) * | 2016-07-18 | 2019-03-15 | 拜耳医药保健有限公司 | Fluid injector and its patient's external member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |