CN204951816U - Needle is kept somewhere to safe formula - Google Patents
Needle is kept somewhere to safe formula Download PDFInfo
- Publication number
- CN204951816U CN204951816U CN201520307552.7U CN201520307552U CN204951816U CN 204951816 U CN204951816 U CN 204951816U CN 201520307552 U CN201520307552 U CN 201520307552U CN 204951816 U CN204951816 U CN 204951816U
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- CN
- China
- Prior art keywords
- needle
- draw point
- needle tip
- tip shield
- tail end
- 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 a needle is kept somewhere to safe formula, including Y type pipe seat, first, the second of Y type pipe seat, third passageway return the device that contracts with pipe, infusion coupling assembling and needle point respectively to be connected, and the needle point returns the device that contracts and includes the needle point sheath that seals the bottom, and the steel needle setting is slided to dispose one and is in on the steel needle needle file in the needle point sheath, the side of needle point sheath is provided with the spout along the axial, the steel needle needle file with stir the handle and be connected, it is in to stir handle slip configuration on the spout, spacing groove and back spacing groove before the front end of spout and tail end lateral part have been offered respectively, the steel needle periphery is still overlapped and is equipped with the reset spring of restriction in the needle point sheath, reset spring's both ends respectively the butt the steel needle needle file with on the needle point sheath front end internal surface, the tail end of steel needle needle file is provided with elasticity barb foot, is provided with the draw -in groove with elasticity barb foot cooperation locking on the tail end internal surface of needle point sheath.
Description
Technical field
This utility model relates to remaining needle field, particularly a kind of safety type remaining needle.
Background technology
Venous detaining needle is the nursing new technique carried out in recent years; along with it applies with clinical more and more widely; replace traditional intravenous transfusion methods gradually, the advantage of this nursing technique is, has both solved the misery of patient's repeated localised puncture; protect vein again; decrease chance that is hemorrhage and that infect, also mitigate the nursing work load of nurse, particularly critical patient simultaneously; venous access medication early can be opened at any time, improve salvage success rate.
In order to avoid giving during mankind's input media, cross infection occurs, the necessary single use of venous detaining needle, namely does garbage disposal after use.Remaining needle after a procedure its draw point is still trapped in outside, relative to the acuity of draw point, be not only the carrying of remaining needle rubbish, destroy and make troubles, the thing of simultaneously stabbing medical and nursing work personnel because of careless often occurs, and this just inevitably there will be the secondary cross infection of pathogenic bacteria.Practice shows, the needle stick injuries that dangerous needle set causes is obviously more than the damage that other surprisingly cause.
For this reason, current most remaining needle adopts Spring driving draw point needle stand retraction, reaches the object preventing draw point from exposing.But the draw point needle stand of this mode still can be pushed out when overcoming spring force, and draw point can not be made completely to reach self-destruction object.
Utility model content
The purpose of this utility model is deficiency for existing remaining needle and defect, provides a kind of safety type remaining needle, draw point part is limited in sheath after automatic retracted, prevents from stabbing, can solve the problem.
The technical problem that this utility model solves can realize by the following technical solutions:
Safety type remaining needle, comprise Y type catheter block, first of described Y type catheter block, second, third channel respectively with conduit, transfusion coupling assembling and needle tip retracts device connect, described conduit is outside equipped with catheter sheath, batching pig is provided with in described third channel, described needle tip retracts device comprises the needle tip shield of bottom seal, draw point is arranged on the draw point needle stand of a slide arrangement in described needle tip shield, described draw point needle point stretches in conduit through batching pig, the side of described needle tip shield is provided with chute vertically, described draw point needle stand with stir handle and be connected, described handle slide arrangement of stirring is on described chute, front limit groove and rear stopper slot is offered respectively in the front end of described chute and tail end-side portion, the inwall of described front limit groove is provided with front elastic spacing crisperding, stir handle described in described front elastic spacing crisperding restriction easily to go out difficulty and enter, the inwall of described rear stopper slot is provided with rear elastic spacing crisperding, stir handle described in described rear elastic spacing crisperding restriction easily to enter difficulty and go out, described draw point periphery is also arranged with one and is limited in back-moving spring in described needle tip shield, the two ends of described back-moving spring are connected on described draw point needle stand and described needle tip shield front inner surface respectively, it is characterized in that, the tail end of described draw point needle stand is provided with resilient barb foot, the tail end inner surface of described needle tip shield is provided with the draw-in groove locked with described resilient barb foot.
In a preferred embodiment of the present utility model, described resilient barb foot is several, and circumference is distributed on the tail end outer peripheral face of described draw point needle stand; Described draw-in groove is cone tank, the notch of described cone tank is provided with the interior defining flange extended internally, the internal diameter in the hole that described interior defining flange surrounds is less than described some resilient barb feet outer end points place diameter of a circle, and the internal diameter in the hole that described interior defining flange surrounds is greater than the tail end outer peripheral face external diameter of described draw point needle stand.
In a preferred embodiment of the present utility model, the front end of described needle tip shield is also provided with needle point retaining clip, described needle point retaining clip front end has left elastic clip, right elastic clip, the front end of described left elastic clip is provided with varus rib, and the face at described varus rib place covers the centrage of described needle tip shield.
Owing to have employed technical scheme as above, this utility model only need be dialled stirring handle and after being locked in stopper slot after using backward, draw point can be made to be locked in needle tip shield by self-destruction, medical and nursing work personnel can not be stabbed, and be convenient to carrying and the destruction of remaining needle rubbish.Moreover under the force of a spring, draw point needle stand can not move forward in needle tip shield, also draw point self-destruction is locked in needle tip shield further.Even if stir handle to be deviate from by rear stopper slot, because resilient barb foot is now locked in draw-in groove, also can limit the activity of draw point needle stand, play multiple self-destruction locking function.
Accompanying drawing explanation
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of embodiment of this utility model.
Fig. 2 is the structural representation of the Y type catheter block of a kind of embodiment of this utility model.
Fig. 3 is the structural representation of the needle tip retracts device of a kind of embodiment of this utility model.
Fig. 4 is the I place enlarged drawing of Fig. 3.
Detailed description of the invention
The technological means realized to make this utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth this utility model further.
Y type catheter block 100, catheter sheath 200, transfusion coupling assembling 300 and needle tip retracts device 400 is comprised see the safety type remaining needle shown in Fig. 1 to Fig. 4, first passage 110 front end of Y type catheter block 100 is connected with conduit 210, catheter sheath 200 is enclosed within outside conduit 210, and the tail end of catheter sheath 200 is set in the tapered front end 111 of the first passage 110 of Y type catheter block 100.
The second channel 120 of Y type catheter block 100 is connected with transfusion coupling assembling 300 by extension tube 121, and extension tube 121 is provided with flow-stopping clip 122.
The third channel 130 of Y type catheter block 100 is connected with needle tip retracts device 400, is provided with batching pig 131 in third channel 130.Needle tip retracts device 400 comprises the needle tip shield 410 of bottom seal, draw point 420 is arranged in needle tip shield 410, draw point 420 needle point stretches in conduit 210 through batching pig 400, the afterbody of draw point 420 is fixed on draw point needle stand 430, draw point needle stand 430 slide arrangement in needle tip shield 410, the outside of draw point needle stand 430 also with stir handle 440 and be connected.
The side of needle tip shield 410 is provided with chute 450 vertically, stirs handle 440 slide arrangement on chute 450, offers front limit groove 451 and rear stopper slot 452 respectively in the front end of chute 450 and tail end-side portion.The inwall of front limit groove 451 is provided with front elastic spacing crisperding 451a, the shape of front elastic spacing crisperding 451a be hypotenuse 451aa away from chute 450 right-angle side 451ab near the right angled triangle elastic spacing crisperding of chute 450, right angled triangle elasticity edge (not shown) before the sidepiece stirring handle 440 is provided with and coordinates with front elastic spacing crisperding 451a, front right angled triangle elasticity edge coordinates restriction to stir handle 440 easily to go out difficulty and enter with front elastic spacing crisperding 451a.
The inwall of rear stopper slot 452 is provided with rear elastic spacing crisperding 452a, the shape of rear elastic spacing crisperding 452a be hypotenuse 452aa near chute 450 right-angle side 452ab away from the right angled triangle elastic spacing crisperding of chute 450, the sidepiece stirring handle 440 is provided with the rear right angled triangle elasticity edge (not shown) coordinated with rear elastic spacing crisperding 452a, and rear right angled triangle elasticity edge coordinates restriction to stir handle 440 easily to enter difficulty and go out with rear elastic spacing crisperding 452a.
Draw point 420 periphery is also arranged with one and is limited in back-moving spring 460 in needle tip shield 410, and the two ends of back-moving spring 460 are connected on draw point needle stand 430 and needle tip shield 410 front inner surface 411 respectively.
Expose to prevent remaining needle draw point 420 after self-destruction further, the front end of needle tip shield 410 is also provided with needle point retaining clip 470, needle point retaining clip 470 front end has left elastic clip 471, right elastic clip 472, the front end of left elastic clip 471 is provided with varus rib 471a, and the face at varus rib 471a place covers the centrage of needle tip shield 410.After draw point 420 is set back in needle tip shield 410, due to the existence of varus rib 471a, draw point 420 just cannot pass needle tip shield 410 again.
To be deviate from by rear stopper slot 452 and back-moving spring 460 deformation under external force and can not self-destruction to prevent from stirring handle 440, on tail end 431 outer peripheral face of draw point needle stand 430, circumference is distributed with some resilient barb feet 500, and tail end 401 inner surface of needle tip shield 410 is provided with the draw-in groove 600 locked with resilient barb foot 500.Draw-in groove 600 in the present embodiment is cone tank, the notch of cone tank is provided with the interior defining flange 610 extended internally, the internal diameter in the hole that interior defining flange 610 surrounds is less than some resilient barb feet 500 outer end points 501 place diameter of a circle, and the internal diameter in the hole that interior defining flange 610 surrounds is greater than the tail end outer peripheral face external diameter of draw point needle stand 430.
When this utility model uses, first stir handle 440 is be limited in front limit groove 451, draw point 420 is through conduit 210, after medical and nursing work personnel complete transfusion to patient, move to direction, chute 450 side and stir handle 440, make to stir handle 440 and depart from front limit groove 451, under the operation of back-moving spring 460 and medical and nursing work personnel, stir handle 440 and slide to bottom along chute 450, now draw point 420 has bounced back in needle tip shield 410, handle 440 will be stirred again turn to and slip in rear stopper slot 452, draw point is locked in needle tip shield by self-destruction and can not stabs medical and nursing work personnel, and be convenient to carrying and the destruction of remaining needle rubbish.Even if stir handle 440 to be deviate from by rear stopper slot 452, because resilient barb foot 500 is now locked in draw-in groove 600, also can limit the activity of draw point needle stand 430, play multiple self-destruction locking function.
More than show and describe 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; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from 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 (2)
1. safety type remaining needle, comprise Y type catheter block, first of described Y type catheter block, second, third channel respectively with conduit, transfusion coupling assembling and needle tip retracts device connect, described conduit is outside equipped with catheter sheath, batching pig is provided with in described third channel, described needle tip retracts device comprises the needle tip shield of bottom seal, draw point is arranged on the draw point needle stand of a slide arrangement in described needle tip shield, described draw point needle point stretches in conduit through batching pig, the side of described needle tip shield is provided with chute vertically, described draw point needle stand with stir handle and be connected, described handle slide arrangement of stirring is on described chute, front limit groove and rear stopper slot is offered respectively in the front end of described chute and tail end-side portion, the inwall of described front limit groove is provided with front elastic spacing crisperding, stir handle described in described front elastic spacing crisperding restriction easily to go out difficulty and enter, the inwall of described rear stopper slot is provided with rear elastic spacing crisperding, stir handle described in described rear elastic spacing crisperding restriction easily to enter difficulty and go out, described draw point periphery is also arranged with one and is limited in back-moving spring in described needle tip shield, the two ends of described back-moving spring are connected on described draw point needle stand and described needle tip shield front inner surface respectively, it is characterized in that, the tail end of described draw point needle stand is provided with resilient barb foot, the tail end inner surface of described needle tip shield is provided with the draw-in groove locked with described resilient barb foot, described resilient barb foot is several, and circumference is distributed on the tail end outer peripheral face of described draw point needle stand, described draw-in groove is cone tank, the notch of described cone tank is provided with the interior defining flange extended internally, the internal diameter in the hole that described interior defining flange surrounds is less than described some resilient barb feet outer end points place diameter of a circle, and the internal diameter in the hole that described interior defining flange surrounds is greater than the tail end outer peripheral face external diameter of described draw point needle stand.
2. safety type remaining needle as claimed in claim 1, it is characterized in that, the front end of described needle tip shield is also provided with needle point retaining clip, described needle point retaining clip front end has left elastic clip, right elastic clip, the front end of described left elastic clip is provided with varus rib, and the face at described varus rib place covers the centrage of described needle tip shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520307552.7U CN204951816U (en) | 2015-05-13 | 2015-05-13 | Needle is kept somewhere to safe formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520307552.7U CN204951816U (en) | 2015-05-13 | 2015-05-13 | Needle is kept somewhere to safe formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204951816U true CN204951816U (en) | 2016-01-13 |
Family
ID=55046920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520307552.7U Expired - Fee Related CN204951816U (en) | 2015-05-13 | 2015-05-13 | Needle is kept somewhere to safe formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204951816U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944190A (en) * | 2016-05-30 | 2016-09-21 | 浙江康德莱医疗器械股份有限公司 | Matched needle for safety insulin pen |
| CN108568010A (en) * | 2018-04-28 | 2018-09-25 | 冯莞婷 | Remaining needle |
-
2015
- 2015-05-13 CN CN201520307552.7U patent/CN204951816U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944190A (en) * | 2016-05-30 | 2016-09-21 | 浙江康德莱医疗器械股份有限公司 | Matched needle for safety insulin pen |
| CN108568010A (en) * | 2018-04-28 | 2018-09-25 | 冯莞婷 | Remaining needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20200513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |