CN202355647U - Safety remaining needle - Google Patents
Safety remaining needle Download PDFInfo
- Publication number
- CN202355647U CN202355647U CN2011204813807U CN201120481380U CN202355647U CN 202355647 U CN202355647 U CN 202355647U CN 2011204813807 U CN2011204813807 U CN 2011204813807U CN 201120481380 U CN201120481380 U CN 201120481380U CN 202355647 U CN202355647 U CN 202355647U
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- Prior art keywords
- needle
- containment vessel
- joint
- puncture
- remaining
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Abstract
The utility model relates to a disposable medical apparatus and instrument, in particular to a safety remaining needle which comprises a remaining needle tee joint and a puncturing needle assembly, wherein the puncturing needle assembly comprises a puncturing needle and a puncturing needle seat fixedly arranged on the tail end of the puncture needle, and the puncture needle seat is arranged outside a third joint of the remaining needle tee joint and is provided with a wing. The safety remaining needle is characterized by also comprising a protecting housing, wherein the protecting housing is detachably arranged on the third joint, a penetrating through hole can be axially movably arranged in the puncture needle seat, a housing body of the protecting housing is provided with a guide groove which is arranged in the length direction, and the wing of the puncture needle seat penetrates through the guide groove and extends out of the protecting housing. The safety remaining needle has the advantages that the puncture needle is shielded in the protecting housing when being pulled out, the protecting housing and the remaining needle tee joint are separated so as to safely discarded, and the medical personal can not be punctured accidently to cause the infection of infectious diseases.
Description
Technical field
This utility model relates to a kind of disposable medical instrument, particularly a kind of safety indwelling needle.
Background technology
Venous detaining needle is a kind of medical apparatus and instruments that is used for the venous transfusion treatment, and venous detaining needle is easy and simple to handle, is applicable to the puncture at any position, has alleviated the misery of patient's repeated localised puncture simultaneously, has alleviated nursing staff's workload, is protected deeply clinically to suffer from and welcomes.When clinical use, puncture needle leads the remaining needle sleeve pipe to get into the vein blood vessel of human body.After seeing blood back, confirm the venipuncture success, puncture needle is extracted out, and only the softish Injector Bushing of material is guaranteed and stay in the vein blood vessel.Medicinal liquid is through remaining needle sleeve pipe input human body.The remaining needle sleeve pipe adopts softness to have certain elastic material and processes, can in human vein safety indwelling time, use, and crooked synchronously with people's limb motion with vein, make the injection site still can freely move, do not have the anxiety of thorn perforating veins.So just avoided frequent puncture to cause suffering to the patient.
Yet find that in clinical manipulation when medical personnel extracted the puncture needle of venous detaining needle out, the needle point of puncture needle has necessarily possibly stab medical personnel.The reason that causes this accident mainly is because a kind of natural reaction of commonly seeing but being ignored by the people usually; With the common action of extracting bottle stopper in the life is example: when people's one held bottle keeps static; When the another hands is firmly extracted bottle stopper; The hands of holding bottle stopper has one in the whipping process that is tending towards away from bottle stops rapidly and the oppositely action of retraction, and this action is the people in order to avoid hands to bump against a natural reaction of hard thing when the whipping fast, is difficult to basically be overcome.With uncork the bottle equally, medical personnel are after firmly extracting the puncture draw point, the hands of holding draw point has the process of a retraction equally, and this moment syringe needle lucky corresponding medical personnel the another hands.In case the retraction action is excessive, the puncture draw point that is stained with blood samples of patients can be accidentally injured medical personnel, and then can cause medical personnel by entrained courses of infection in the blood samples of patients.In addition, when puncture needle is discarded in processing, possibly cause the staff to be wounded by stabbing equally, cause difficulty for the medical waste special treatment, thereby cause serious social safety hidden danger.
Summary of the invention
The purpose of this utility model is the weak point according to above-mentioned prior art; A kind of safety indwelling needle is provided, and this safety indwelling needle makes after puncture needle is extracted out to be placed in the needle stand through extract needle stand of the detachable installation in joint of puncture needle out in the remaining needle threeway; Limited the displacement stroke that medical personnel extract puncture needle out; And with this needle stand with after the remaining needle threeway separates, puncture needle is placed in this needle stand, has realized that safety abandons.
This utility model purpose realizes being accomplished by following technical scheme:
A kind of safety indwelling needle; Comprise remaining needle threeway and puncture needle assembly; Said puncture needle assembly is made up of the puncture needle Paracentesis needle holder terminal with being fixedly set in said puncture needle; Said Paracentesis needle holder is arranged at the 3rd joint outside of said remaining needle threeway, and has a fin, and said puncture needle passes through said remaining needle threeway and extends outside first joint of said remaining needle threeway; The 3rd joint of said remaining needle threeway and first joint axis are to perforation; It is characterized in that: said safety indwelling needle also comprises a containment vessel; Said containment vessel is detachable be installed on said the 3rd joint on, but axial displacement assembles said Paracentesis needle holder in its through hole that runs through; Offer the gathering sill that is provided with along its length on the housing of said containment vessel, the fin of said Paracentesis needle holder passes through this gathering sill and extends outside the containment vessel.
Cavity length is greater than said puncture needle length component in the said containment vessel.
Said containment vessel is provided with at least one draw-in groove with the end that said the 3rd joint is connected, and said the 3rd joint correspondence is provided with the fixture block that at least one matches with draw-in groove, to realize described detachable installation.
Convex with cyclic flange on the inwall of the other end of said relatively the 3rd joint of said containment vessel, said flange internal diameter is less than said Paracentesis needle holder external diameter.
The cell wall of gathering sill one side is provided with a containment vessel stuck point on the said containment vessel, and this containment vessel stuck point has beveled surface corresponding to a side of said the 3rd joint, the cell wall setting of relative another side vertically-guided groove.
Said containment vessel stuck point and said flange spacing are greater than said Paracentesis needle holder length.
This utility model purpose advantage is: in the normal operating process of extracting out of puncture needle quilt, synchronously puncture needle is shielded in needle stand; Only threeway separates need with remaining needle with needle stand; Can realize safe abandoning, guarantee that medical personnel can not infected infectious disease by unexpected acupuncture.And technique scheme is done small change and can be realized on the basis of existing remaining needle structure, and does not change the existing operating process of medical personnel; With low cost, simple in structure, can adopt existing remaining needle production line and mould to reequip production.
Description of drawings
Accompanying drawing 1 is existing remaining needle structural representation;
Accompanying drawing 2 is this utility model remaining needle structural representation;
Accompanying drawing 3 is needle stand part-structure sketch map I;
Accompanying drawing 4 is needle stand part-structure sketch map II.
The specific embodiment
Through embodiment this utility model characteristic and other correlated characteristic are done further explain below in conjunction with accompanying drawing, so that technical staff's of the same trade understanding:
Shown in Fig. 1-4, label 1-25 representes respectively: shrink film sleeve pipe 1, helmet 2, self-locking circular cone connector 3, helmet 4, transfusion threeway 5, flexible pipe 6, tongs 7, Paracentesis needle holder 8, Injector Bushing base 9, haemostat 10, puncture needle 11, puncture guiding adapter sleeve 12, remaining needle sleeve pipe 13, remaining needle sheath 14, containment vessel draw-in groove 15, containment vessel stuck point 16, gathering sill 17, remaining needle threeway 18, containment vessel 19, first joint 20, second joint 21, the 3rd joint 22, link 23, closing end 24, fixture block 25.
Referring to Fig. 1, the structure that is common venous detaining needle shown in Figure 1 mainly is made up of transfusion device assembly and indwelling needle assembly.
Wherein as agent structure, a joint of transfusion threeway 5 is connected with flexible pipe 6 to the transfusion device assembly with transfusion threeway 5, tongs 7 is installed on this flexible pipe 6, and is communicated with indwelling needle assembly; Second joint then is equipped with helmet 4, the interim handle hole during as clinical manipulation; On the 3rd joint self-locking circular cone connector 3 is installed, this self-locking circular cone connector 3 is equipped with helmet 2, and the other end of helmet 2 is provided with shrink film sleeve pipe 1, is used for transfusion device connection being installed.
Indwelling needle assembly comprises remaining needle threeway 18 and puncture needle assembly.Remaining needle threeway 18 has the cavity of hollow, and its second joint is communicated with flexible pipe 6.20 are connected with remaining needle sheath 14 on first joint of remaining needle threeway 18, are used for protecting remaining needle sleeve pipe 13.The internal sleeve of remaining needle threeway 18 first joints 20 is equipped with puncture guiding adapter sleeve 12, is fixed with remaining needle sleeve pipe 13 on this puncture guiding adapter sleeve 12, and remaining needle sleeve pipe 13 extends in the described remaining needle sheath 14.The 3rd joint 22 and first joint 20 of remaining needle threeway 18 axially connect, and are used as the perforate of extracting the puncture needle assembly out.Be set with Injector Bushing base 9 and haemostat 10 in the hollow cavity of remaining needle threeway 1.
The puncture needle assembly is made up of Paracentesis needle holder 8 and puncture needle 11.The body-fixed of Paracentesis needle holder 8 is arranged at the end of puncture needle 11, and has a fin, and Paracentesis needle holder 8 is set at outside the 3rd joint 22 of remaining needle threeway 18.11 of puncture needles stretch in the cavity of remaining needle threeway 18; And run through Injector Bushing base 9, haemostat 10 and puncture guiding adapter sleeve 12 successively and stretch out outside first joint 20 of remaining needle threeway 18, puncture needle 11 extends first joint 20 part outward by remaining needle sleeve pipe 13 suits.
Shown in Fig. 2-4, this utility model technical scheme is that a containment vessel 19 is set on existing remaining needle.
The roughly cylindrical structure of this containment vessel 19, the inner chamber with hollow, this inner chamber can contain the body of Paracentesis needle holder 8, and containment vessel 19 1 ends are link 23, and the other end is a closing end 24.
This link 23 detachably is installed on the 3rd joint 22 places of remaining needle threeway 18, makes Paracentesis needle holder 8 be set in this containment vessel 19 inside.Specifically, offer a L shaped containment vessel draw-in groove 15 on the link 23, containment vessel draw-in groove 15 has vertical slot parts that axially are provided with along containment vessel 19 and the horizontal slot part of being located at vertical slot part bottom.Corresponding, the 3rd joint convexes with a fixture block 25 on 22 lateral walls.When both join; Described fixture block 25 can correspondingly get in the containment vessel draw-in groove 15; And axially reach radial moving along vertical slot part and horizontal slot part, and promptly the width of vertical slot part is not less than said fixture block 25 width, and the height of said horizontal slot part is not less than fixture block 25 thickness.When dismounting, the fixture block 25 on the containment vessel 19 moves slip until the vertical slot part 1 of correspondence along horizontal slot part, spurs containment vessel 19 afterwards fixture block 25 is slided along vertical slot part, breaks away from containment vessel draw-in groove 15 fully until fixture block 25, and containment vessel 19 separates with remaining needle threeway 18.
Offer the gathering sill 17 that is provided with along its length on the housing of containment vessel 19, the fin of Paracentesis needle holder 8 passes through this gathering sill 17 and extends outside the containment vessel 19, constitutes the position that grips that medical personnel extract puncture needle 11 out.The fin of Paracentesis needle holder 8 can slide along gathering sill 17, drives Paracentesis needle holder 8 body parts simultaneously and endwisely slips at containment vessel 19 inner chambers.Convex with cyclic flange on the inwall of closing end 24, shift out in the containment vessel 19 with restriction Paracentesis needle holder 8.When the flange of Paracentesis needle holder 8 conflict closing ends 24, puncture needle 11 should be included in the containment vessel 19 fully, and promptly the length of containment vessel 19 inner chambers is greater than the length of puncture needle assembly.
Displacement stroke when said structure has realized that restriction puncture needle 11 is pulled out.In addition; The puncture needle assembly drops in containment vessel 19 when puncture needle 11 abandoneds in order to avoid; On the cell wall of gathering sill 17 1 sides, also be provided with a containment vessel stuck point 16; This containment vessel stuck point 16 is a rubber-like protrusion, and a side of its corresponding remaining needle threeway 18 has beveled surface, and the another side is then perpendicular to the cell wall of gathering sill 17.In use, pull out remaining needle sheath 14, operation puncture needle 11 leads remaining needle sleeve pipe 13 to get into the vein blood vessel of human bodies, see blood back after, confirm the venipuncture success.This moment, the fin of hand-held Paracentesis needle holder 8 was extracted puncture needle 11 out; Puncture needle 11 is extracted out from remaining needle sleeve pipe 13, puncture guiding adapter sleeve 12, haemostat 10 and needle guard base 9 successively; The fin of Paracentesis needle holder 8 gets into the gathering sill 17 of containment vessel 19; And slide into the oblique section of its leading section (moving direction) conflict containment vessel stuck point 16 along gathering sill 17; Containment vessel stuck point 16 is compressed distortion, and Paracentesis needle holder 8 fins continue outwards to slide, and slip over containment vessel stuck point 16 until Paracentesis needle holder 8 fin integral body.This moment, the other end of Paracentesis needle holder 8 fins was stopped by containment vessel stuck point 16; The flange that the front end of Paracentesis needle holder 8 bodies then is closed end 24 stops; The axial location of puncture needle assembly this moment in containment vessel 19 is defined; Again containment vessel 9 is separated with remaining needle threeway 18 afterwards, can realize that the safety of puncture needle abandons.
Claims (6)
1. safety indwelling needle; Comprise remaining needle threeway and puncture needle assembly; Said puncture needle assembly is made up of the puncture needle Paracentesis needle holder terminal with being fixedly set in said puncture needle; Said Paracentesis needle holder is arranged at the 3rd joint outside of said remaining needle threeway, and has a fin, and said puncture needle passes through said remaining needle threeway and extends outside first joint of said remaining needle threeway; The 3rd joint of said remaining needle threeway and first joint axis are to perforation; It is characterized in that: said safety indwelling needle also comprises a containment vessel; Said containment vessel is detachable be installed on said the 3rd joint on, but axial displacement assembles said Paracentesis needle holder in its through hole that runs through; Offer the gathering sill that is provided with along its length on the housing of said containment vessel, the fin of said Paracentesis needle holder passes through this gathering sill and extends outside the containment vessel.
2. a kind of safety indwelling needle according to claim 1 is characterized in that: cavity length is greater than said puncture needle length component in the said containment vessel.
3. a kind of safety indwelling needle according to claim 1; It is characterized in that: said containment vessel is provided with at least one draw-in groove with the end that said the 3rd joint is connected; Said the 3rd joint correspondence is provided with the fixture block that at least one matches with draw-in groove, to realize described detachable installation.
4. a kind of safety indwelling needle according to claim 1 is characterized in that: convex with cyclic flange on the inwall of the other end of said relatively the 3rd joint of said containment vessel, said flange internal diameter is less than said Paracentesis needle holder external diameter.
5. according to claim 1,2,3 or 4 described a kind of safety indwelling needles; It is characterized in that: the cell wall of gathering sill one side is provided with a containment vessel stuck point on the said containment vessel; This containment vessel stuck point has beveled surface corresponding to a side of said the 3rd joint, the cell wall setting of relative another side vertically-guided groove.
6. a kind of safety indwelling needle according to claim 5 is characterized in that: said containment vessel stuck point and said flange spacing are greater than said Paracentesis needle holder length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204813807U CN202355647U (en) | 2011-11-28 | 2011-11-28 | Safety remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204813807U CN202355647U (en) | 2011-11-28 | 2011-11-28 | Safety remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202355647U true CN202355647U (en) | 2012-08-01 |
Family
ID=46566872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204813807U Expired - Lifetime CN202355647U (en) | 2011-11-28 | 2011-11-28 | Safety remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202355647U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248354A (en) * | 2018-09-25 | 2019-01-22 | 王祖扬 | A kind of anti-needle stabs safety indwelling needle |
| CN112472250A (en) * | 2020-12-30 | 2021-03-12 | 泰瑞医用品(泰州)有限公司 | Repeated puncture preventing structure for remaining needle |
-
2011
- 2011-11-28 CN CN2011204813807U patent/CN202355647U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248354A (en) * | 2018-09-25 | 2019-01-22 | 王祖扬 | A kind of anti-needle stabs safety indwelling needle |
| CN109248354B (en) * | 2018-09-25 | 2023-12-15 | 重庆医药集团威逊医疗科技有限公司 | Needle-stick injury prevention safety indwelling needle |
| CN112472250A (en) * | 2020-12-30 | 2021-03-12 | 泰瑞医用品(泰州)有限公司 | Repeated puncture preventing structure for remaining needle |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |