CN204233535U - A kind of safety scalp needle - Google Patents

Abstract

This utility model relates to a kind of safety scalp needle, comprise syringe needle, tube for transfusion and tubulose safety shield, described syringe needle and tube for transfusion are axially slidably disposed in safety shield, length and the described needle length of described safety shield match, described syringe needle has the working position that a syringe needle exposes and the recovery position be in completely in safety shield in safety shield, the end tube wall of described tube for transfusion is provided with elastic button, the inwall of described safety shield rear and front end is respectively equipped with the first button hole matched with elastic button and the second button hole, working position is with under the state of recovery position, described elastic button position is corresponding with the first button hole and the second button hole respectively.Syringe needle, after use, can be retracted in safety shield, thus avoid surprisingly causing accidental injury to medical worker by safety scalp needle completely.

Description

A kind of safety scalp needle

Technical field

This utility model relates to a kind of medical needle set, is specifically related to a kind of safety scalp needle.

Background technology

Pricking wound a kind ofly enters skin deep part by syringe needle and be enough to the unexpected injury that makes victim hemorrhage.As contaminated syringe needle, sharp instrument injury then have the danger infecting Emperical Bayesian method.Existing disposable scalp acupuncture is made up of syringe needle, the pin wing, nylon leather hose, the pin wing is fixed on the front portion of nylon leather hose, syringe needle is fixed on the front end of nylon leather hose, and also always exposedly not protect outside after using, its major defect is: scalp acupuncture syringe needle is in free exposed state or puts into sharp disposable container process again in separation after extracting in patient body, easily causes pricking wound.Much research shows, nurse is the professional colony that in hospital, pricking wound occurrence frequency is the highest, and incidence rate is 88.97%, and nurse is also the colony occurred frequently infecting Emperical Bayesian method simultaneously.More than 20 can be propagated by pricking wound and plant hematogenous infectious disease, wherein the most common, to endanger maximum be HBV, HCV, HIV.When nursing staff's accidental needle sticks wound almost all occurs in and pulls out liquid, trace it to its cause and mainly contain: 1. tradition is separated after pin is pulled out in scalp needle for infusion operation and gets fluid bag immediately, scalp acupuncture is in free state, easily stab the people of oneself and periphery, and when processing the syringe needle pricking bottle stopper, likely cause the secondary pollution of blood.2. all pending article of tradition separation scalp needle for infusion operation are put together, easily stab, although the injuries such as medical worker is stabbed by sharp instrument in curative activity, scratch are still inevitably.

Summary of the invention

For the deficiency that prior art exists, the purpose of this utility model is that providing a kind of uses safer safety scalp needle.

For achieving the above object, this utility model provides following technical scheme: a kind of safety scalp needle, comprise syringe needle, tube for transfusion, it is characterized in that: be also provided with safety shield, described syringe needle is fixed on the end of tube for transfusion, described safety shield is tubular element, described syringe needle and tube for transfusion are axially slidably disposed in safety shield, length and the described needle length of described safety shield match, described syringe needle has the working position that a syringe needle exposes and the recovery position be in completely in safety shield in safety shield, the end tube wall of described tube for transfusion is provided with outstanding elastic button, the inwall of described safety shield rear and front end is respectively equipped with the first button hole matched with elastic button and the second button hole, working position is with under the state of recovery position, described elastic button position is corresponding with the first button hole and the second button hole respectively.

This utility model safety scalp needle is owing to being axially slidably disposed in a safety shield by syringe needle and tube for transfusion, and the end tube wall of tube for transfusion is provided with outstanding elastic button, the inwall of safety shield rear and front end and working position and reclaim on position that position matches and be respectively equipped with the first button hole and the second button hole that match with elastic button, like this, when scalp acupuncture is in the process punctured and infuse, elastic button is stuck in the first button hole and is in working position, after completing transfusion operation, by pressing elastic button, pull back tube for transfusion to elastic button to be stuck in the second button hole to be in and to reclaim position state simultaneously, syringe needle is retracted in safety shield completely, thus avoid surprisingly causing accidental injury to medical worker.

This utility model is arranged further: described safety shield inwall is provided with connection first button hole and the second button hole gathering sill, and described gathering sill cross section and elastic button cross section match.By arranging gathering sill, conveniently pull back syringe needle time elastic button energy auto-alignment snap in the second button hole.

Below in conjunction with the drawings and specific embodiments, this utility model is further described.

Accompanying drawing explanation

Fig. 1 is that this utility model specific embodiment syringe needle stretches out state perspective view;

Fig. 2 is the I portion enlarged drawing of Fig. 1;

Fig. 3 is that this utility model specific embodiment syringe needle reclaims position state three-dimensional structure diagram;

Fig. 4 is this utility model specific embodiment decomposition texture schematic diagram;

Fig. 5 is that this utility model specific embodiment syringe needle stretches out state front view;

Fig. 6 is the A-A sectional view of Fig. 5;

Fig. 7 is that this utility model specific embodiment reclaims position state front view;

Fig. 8 is the B-B sectional view of Fig. 7;

Fig. 9 is the II portion enlarged drawing of Fig. 8.

Detailed description of the invention

As shown in figs 1-9, safety scalp needle comprises syringe needle 1, tube for transfusion 2 and safety shield 3, and described syringe needle 1 is fixed on the end of tube for transfusion 2.Described safety shield 3 is tubular element, conveniently operates, and described safety shield 3 side can also be provided with the pin wing 301.The internal diameter of safety shield 3 coordinates with the crest clearance of syringe needle 1 and tube for transfusion 2, described syringe needle 1 and tube for transfusion 2 are axially slidably disposed in safety shield 3, length and described syringe needle 1 length of described safety shield 3 match, namely the length of safety shield 3 wants long enough, whole syringe needle 1 can be accommodated in wherein.Described syringe needle 1 has the working position (being namely in the position of using state) that a syringe needle 1 exposes and the recovery position be in completely in safety shield 3 in safety shield 3.The end tube wall of described tube for transfusion 2 is provided with elastic button 4, and elastic button 4 can be made up of button cap 401 and spring 402, is arranged on the end of tube for transfusion 2.The inwall of described safety shield 3 rear and front end is respectively equipped with the first button hole 302 and the second button hole 303 matched with elastic button 4, working position is with under the state of recovery position, described elastic button 4 position is corresponding with the first button hole 302 and the second button hole 303 respectively, the first button hole 302 and the second button hole 303 and elastic button 4 matched in clearance.Conveniently pull back syringe needle 1 time elastic button 4 can auto-alignment snap in the second button hole 303, in this specific embodiment, described safety shield 3 inwall is preferably provided with the gathering sill 304 of connection first button hole 302 and the second button hole 303, described gathering sill 304 cross section and elastic button 4 cross section match.

Claims (2)

1. a safety scalp needle, comprise syringe needle, tube for transfusion, it is characterized in that: be also provided with safety shield, described syringe needle is fixed on the end of tube for transfusion, described safety shield is tubular element, described syringe needle and tube for transfusion are axially slidably disposed in safety shield, length and the described needle length of described safety shield match, described syringe needle has the working position that a syringe needle exposes and the recovery position be in completely in safety shield in safety shield, the end tube wall of described tube for transfusion is provided with outstanding elastic button, the inwall of described safety shield rear and front end is respectively equipped with the first button hole matched with elastic button and the second button hole, working position is with under the state of recovery position, described elastic button position is corresponding with the first button hole and the second button hole respectively.

2. safety scalp needle according to claim 1, is characterized in that: described safety shield inwall is provided with connection first button hole and the second button hole gathering sill, and described gathering sill cross section and elastic button cross section match.