CN209713862U - A kind of safe remaining needle - Google Patents

Abstract

The utility model discloses a kind of safe remaining needles, including puncturing seat, the puncture seat is equipped with needle tubing, puncture needle is equipped in the needle tubing, the puncture needle is through the needle tubing and punctures seat, cavity is equipped in the puncture seat, the front end of the cavity is equipped with needle track, and active block stop is equipped in the cavity, is equipped with a through-hole in the active block stop, the internal diameter of the needle track and through-hole is all larger than the outer diameter of puncture needle, and the outer diameter of the active block stop is less than the internal diameter of cavity.The utility model, which passes through, is provided with cavity using in puncturing seat, then it is provided with the active block stop that can be move freely in the cavities, after puncture needle completes puncture, due to the displacement of active block stop, so that puncture needle is difficult to be pierced by from puncture seat again, so that being effectively prevented from the unexpected of needle point stretches out caused accident.

Description

A kind of safe remaining needle

Technical field

The utility model relates to a kind of medical instruments, especially remaining needle.

Background technique

Venous detaining needle is also known as venous catheter needle, and application is the preferable method of clinical transfusion, on the one hand can mitigate trouble Person is because scalp acupuncture punctures bring pain repeatedly and suitable for the adult of long-term infusion, on the other hand also mitigates clinical nurse Workload.Remaining needle is mainly made of needle tubing, needle tubing seat, casing, casing seat, batching pig and rivet, is circulated currently on the market In remaining needle, needle tubing and rivet are process using stainless steel material, and needle tubing leaves remaining needle after the completion of puncture.Existing indwelling Needle remaining needle needs to exit steel needle after completing to puncture, steel needle needle point completely it is exposed outside, medical staff be accidentally easy to by It stabs.If patient is with hepatitis B or AIDS patient, it will cause medical staff to infect hepatitis B or AIDS, to bring Serious actual bodily harm threatens its life security.

Utility model content

Technical problem to be solved by the utility model is: the safety of protection can be provided to the needle point after the withdraw of the needle by providing one kind Remaining needle.

The solution that the utility model solves its technical problem is: a kind of safe remaining needle, including punctures seat, described It punctures seat and is equipped with needle tubing, puncture needle is equipped in the needle tubing, the puncture needle is through the needle tubing and punctures seat, described to wear It pierces and is equipped with cavity in seat, the front end of the cavity is equipped with needle track, and active block stop is equipped in the cavity, is set in the active block stop There is a through-hole, the internal diameter of the needle track and through-hole is all larger than the outer diameter of puncture needle, and the outer diameter of the active block stop is less than cavity Internal diameter.

As a further improvement of the above technical scheme, the active block stop is truncated cone-shaped, and the through-hole runs through active catch The front/rear end of block.

As a further improvement of the above technical scheme, gasket is additionally provided in the cavity, the outer diameter of the gasket is less than The internal diameter of cavity, the second through-hole is equipped in the gasket, and the internal diameter of second through-hole is greater than the outer diameter of puncture needle.

As a further improvement of the above technical scheme, the needle tubing includes inner needle tube and outer needle tubing, the outer needle tubing set In puncturing seat, the inner needle tube covers in outer needle tubing.

It as a further improvement of the above technical scheme, further include needle stand, the needle stand is located at the rear for puncturing seat, described The front end of needle stand and the rear end snapping of inner needle tube, the front end of the outer needle tubing and puncture seat snapping, the rear end of the outer needle tubing with The front end snapping of inner needle tube.

The beneficial effects of the utility model are: the utility model, which passes through, is provided with cavity using in puncturing seat, then exist The active block stop that can be move freely is provided in cavity, after puncture needle completes puncture, due to the shifting of active block stop Position, so that puncture needle is difficult to be pierced by from puncture seat again, so that being effectively prevented from the unexpected of needle point stretches out caused accident.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it His design scheme and attached drawing.

Fig. 1 is the partial sectional view of the utility model；

Fig. 2 is the stereoscopic schematic diagram of the puncture seat of the utility model；

Fig. 3 is the structural schematic diagram before the activation of the remaining needle of the utility model.

Specific embodiment

It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection It encloses.In addition, all connection/connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific reality Situation is applied, by adding or reducing couple auxiliary, Lai Zucheng more preferably coupling structure.Each technology in the invention is special Sign, can be with combination of interactions under the premise of not conflicting conflict.

Referring to Fig.1~Fig. 3, a kind of safe remaining needle, including seat 1 is punctured, the puncture seat 1 is equipped with needle tubing 2, described Puncture needle 3 is equipped in needle tubing 2, the puncture needle 3 is through the needle tubing 2 and punctures seat 1, is equipped with cavity in the puncture seat 1 11, the front end of the cavity 11 is equipped with needle track 12, and active block stop 4 is equipped in the cavity 11, is equipped in the active block stop 4 The internal diameter of one through-hole 41, the needle track 12 and through-hole 41 is all larger than the outer diameter of puncture needle 3, and the outer diameter of the active block stop 4 is small In the internal diameter of cavity 11.

Referring to Fig. 3, before activation, puncture needle is completely through puncture seat and casing seat, certainly together to remaining needle When also extended through puncture seat in active block stop and needle track.After remaining needle is completed to puncture, puncture needle can the withdraw of the needle, elder generation is from people It is exited in body blood vessel, is then log out casing seat, the casing on casing seat will be retained in the blood vessel of human body, be facilitated subsequent defeated Liquid treatment.And puncture seat and will continue to retreat, when puncture needle, which recedes into, punctures seat, continue to retreat in needle track first, so Needle point recedes into the through-hole of active block stop afterwards, after needle point has exited the through-hole of active block stop completely, referring to Fig. 1, active catch Block 4 is supported due to losing, and is freely moved in cavity, and active block stop can block needle track at this time, and due to active catch Block only one can be for puncturing the through-hole that pass through of seat, so puncture needle is difficult to again after puncture needle has exited active block stop It is pierced by from needle track across active block stop, to effectively play a protective role to needle point.

It of courses, active block stop is in order to play the role of needle track to be blocked, and not only outer diameter is less than the internal diameter of cavity, makes Obtaining active block stop can be movable in the cavities；And when needle track is located among cavity, the outer diameter of active block stop is also big In the internal diameter of the cavity of half, it just can guarantee that active block stop can block needle track always.

It is further used as preferred embodiment, the active block stop 4 is truncated cone-shaped, and the through-hole 41 runs through active block stop 4 front/rear end.When active block stop is truncated cone-shaped, active block stop is easier to be flipped in the cavities, and after overturning Active block stop, since through-hole is not located on same plane in needle track, puncture needle is more difficult to be pierced by from needle track.

It is further used as preferred embodiment, gasket 5 is additionally provided in the cavity 11, the outer diameter of the gasket 5 is less than The internal diameter of cavity 11, the second through-hole 51 is equipped in the gasket 5, and the internal diameter of second through-hole 51 is greater than the outer diameter of puncture needle 3. It is in the cavities to increase a gasket more, an active block stop has been functioned as mostly, has thus gone up one again to protective device Road insurance, puncture needle are wanted to be pierced by from puncture seat, it is necessary to also cross through-hole and the second through-hole and needle track, that is, only have When through-hole, the second through-hole and needle track are located along the same line and puncture needle can be allowed to pass through, and due to active block stop and gasket Irregular movement is done in cavity, therefore puncture needle is to there is no fear of being pierced by from puncture seat substantially.

Referring to Fig. 1, Fig. 2, it is further used as preferred embodiment, the needle tubing 2 includes inner needle tube 21 and outer needle tubing 22, 22 sets of the outer needle tubing is in puncturing seat 1, and 21 sets of the inner needle tube in outer needle tubing 22.It further include needle stand 6, the needle stand 6 In the rear for puncturing seat 1, the front end of the needle stand 6 and the rear end snapping of inner needle tube 21, the front end of the outer needle tubing 22 and puncture 1 snapping of seat, the rear end of the outer needle tubing 22 and the front end snapping of inner needle tube 21.

Inner needle tube covers in outer needle tubing, so that inner needle tube can be free to slide in outer needle tubing, and one end quilt of inner needle tube Needle stand is closed, and one end of outer needle tubing is punctured seat and is closed, therefore puncture needle after receding into puncture seat completely, opposite In being sealed.Puncture needle can be effectively prevented using the active block stop and gasket that puncture on seat to stretch out from front end, And utilize the needle tubing that can be stretched and by needle stand, puncture needle can be wrapped in needle tubing after completing to puncture, so that Puncture needle can be lockable in needle stand, needle tubing and puncture in the space that seat is surrounded after completing to puncture." button mentioned here Connect " be not the fixed installation connection realized between two components, be in order to enable there is the connection to contact with each other in two end faces, Separation both to limit.Such as needle stand front end and inner needle tube rear end snapping, can exactly make inner needle tube can not be from The front end of needle stand is deviate from, but it can be mobile toward the rear end of needle stand.

The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.

Claims (5)

1. a kind of safe remaining needle, it is characterised in that: including puncturing seat (1), the puncture seat (1) is equipped with needle tubing (2), institute It states in needle tubing (2) and is equipped with puncture needle (3), the puncture needle (3) is through the needle tubing (2) and punctures seat (1), the puncture seat (1) cavity (11) are equipped in, the front end of the cavity (11) is equipped with needle track (12), and active block stop is equipped in the cavity (11) (4), a through-hole (41) are equipped in the active block stop (4), the internal diameter of the needle track (12) and through-hole (41) is all larger than puncture The outer diameter of needle (3), the outer diameter of the active block stop (4) are less than the internal diameter of cavity (11).

2. safe remaining needle according to claim 1, it is characterised in that: the active block stop (4) is truncated cone-shaped, described Through-hole (41) runs through the front/rear end of active block stop (4).

3. safe remaining needle according to claim 1, it is characterised in that: gasket (5) are additionally provided in the cavity (11), The outer diameter of the gasket (5) is less than the internal diameter of cavity (11), is equipped with the second through-hole (51) in the gasket (5), and described second is logical The internal diameter in hole (51) is greater than the outer diameter of puncture needle (3).

4. safe remaining needle according to claim 1, it is characterised in that: the needle tubing (2) include inner needle tube (21) with Outer needle tubing (22), the outer needle tubing (22) cover in puncturing seat (1), and the inner needle tube (21) covers in outer needle tubing (22).

5. safe remaining needle according to claim 4, it is characterised in that: it further include needle stand (6), needle stand (6) position In the rear for puncturing seat (1), the rear end snapping of the front end of the needle stand (6) and inner needle tube (21), before the outer needle tubing (22) End and puncture seat (1) snapping, the rear end of the outer needle tubing (22) and the front end snapping of inner needle tube (21).