CN209790522U

CN209790522U - Puncture needle capable of preventing puncture

Info

Publication number: CN209790522U
Application number: CN201821914172.XU
Authority: CN
Inventors: 陈海振; 胡喜燕; 戚婷婕; 邱寅龙; 张晓璇
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-20
Filing date: 2018-11-20
Publication date: 2019-12-17
Anticipated expiration: 2028-11-20

Abstract

The utility model provides a puncture-proof puncture needle, which comprises a needle handle and a fixed tube, wherein the side surface of the fixed tube is provided with a sliding groove, and the needle handle is arranged in the sliding groove; one end of the needle handle is connected with a puncture needle, the other end of the needle handle is connected with an existing catheter which can penetrate into the fixed tube, and the puncture needle is communicated with the existing catheter; the needle handle can drive the puncture needle to move in the sliding groove, so that the puncture needle penetrates out of the end face of the fixed tube. The utility model solves the problem that the puncture needle easily stabs medical staff or patients after being pulled out of the human body.

Description

Puncture needle capable of preventing puncture

Technical Field

The utility model relates to a medical treatment puncture instrument, concretely relates to prevent stabbing pjncture needle.

Background

at present, human body infusion is widely used as an important and effective medical means for treating diseases. When the human body is transfused, the puncture needle made of metal is penetrated into the human body for transfusion, and the puncture needle needs to be pulled out when the transfusion is finished; when the extracted puncture needle is exposed outside, medical staff or patients are easy to be punctured due to the small and sharp needle head, so that disease pollution is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a puncture-proof puncture needle, which solves the problem that medical staff or patients are easy to be punctured after the puncture needle is pulled out of the human body.

The technical scheme of the utility model is realized like this: a puncture needle capable of preventing puncture comprises a needle handle and a fixed tube, wherein a sliding groove is formed in the side surface of the fixed tube, and the needle handle is arranged in the sliding groove; one end of the needle handle is connected with a puncture needle, the other end of the needle handle is connected with an existing catheter which can penetrate into the fixed tube, and the puncture needle is communicated with the existing catheter; the needle handle can drive the puncture needle to move in the sliding groove, so that the puncture needle penetrates out of the end face of the fixed tube.

optionally, the needle handle comprises a handle and a fixed end, the handle is fixed on the fixed end to enable the needle handle to form a T shape, and the puncture needle and the existing catheter are respectively fixed at two ends of the fixed end.

Optionally, the handle and the fixed end are of an integral structure.

Optionally, a connecting channel is arranged in the fixed end, and the puncture needle penetrates through the connecting channel and is communicated with the existing catheter.

Optionally, a baffle is arranged at the front end of the fixed pipe.

Optionally, a limiting part for limiting the needle handle is arranged on the sliding groove.

Compared with the prior art, the utility model has the advantages of it is following: the utility model arranges the sliding groove in the fixed tube, so that the needle handle connected with the puncture needle can drive the puncture needle to move in the sliding groove; when transfusion or blood drawing is needed, the puncture needle penetrates out of the end face of the fixed tube by moving the operating handle; after the puncture needle is pulled out, the puncture needle is positioned in the fixing tube by moving the operating handle, so that the puncture needle is prevented from being exposed, and the phenomenon that medical staff or patients are punctured is avoided.

drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural view of an embodiment of the puncture needle of the present invention;

FIG. 2 is a schematic structural view of a fixing tube in an embodiment of the puncture needle for preventing puncture according to the present invention;

FIG. 3 is a cross-sectional view of the needle shaft in an embodiment of the puncture needle of the present invention;

FIG. 4 is a schematic structural view of the needle handle connected with the puncture needle in an embodiment of the puncture needle for preventing puncture of the utility model;

Fig. 5 is a schematic structural view of the puncture needle and the existing catheter respectively connected with the needle handle in an embodiment of the puncture needle for preventing puncture of the utility model.

The attached drawings are as follows: 1 fixing a tube; 101 a sliding groove; 102 a limiting member; 103 baffle plate; 2, a needle handle; 201 a handle; 202 fixed end; 203 connecting the channels; 3, puncture needles; 4 existing conduit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the puncture needle for preventing puncture disclosed in the present invention comprises a needle handle 2 and a fixed tube 1, wherein a sliding groove 101 is disposed on a side surface of the fixed tube 1, and the needle handle 2 is disposed in the sliding groove 101; one end of the needle handle 2 is connected with a puncture needle 3, the other end of the needle handle 2 is connected with an existing catheter 4 which can penetrate into the fixed tube 1, and the puncture needle 3 is communicated with the existing catheter 4; the needle handle 2 can drive the puncture needle 3 to move in the sliding groove 101, so that the puncture needle 3 penetrates out of the end face of the fixed tube 1.

The puncture needle, the needle handle and the existing catheter are arranged into an integral structure or a detachable structure, or the puncture needle is not detachable from the handle, but the needle handle and the existing catheter are detachable, or the puncture needle is detachable from the handle, but the needle handle and the existing catheter are not detachable. Preferably, the puncture needle, the needle handle and the existing catheter are of an integrated structure, so that the dropping of the puncture needle and the existing catheter can be effectively avoided, and the injection or the blood can flow out.

When transfusion or blood drawing is needed, the puncture needle 3 connected with one end of the handle 201 penetrates out of the end surface of the fixed tube 1 by moving the handle 201 forwards in the sliding groove 101, so that transfusion or blood drawing is realized; when transfusion or blood drawing is finished, the movable handle 201 moves backwards in the sliding groove 101, so that the puncture needle 3 connected with one end of the handle 201 does not penetrate out of the end face of the fixed tube 1, the puncture needle 3 is prevented from being exposed, and medical staff or patients are effectively prevented from being punctured.

Further, the needle handle 2 comprises a handle 201 and a fixed end 202, the handle 201 is fixed on the fixed end 202 to make the needle handle 2 form a T shape, and the puncture needle 3 and the existing catheter 4 are respectively fixed at two ends of the fixed end 202. Wherein, the handle 201 and the fixed end 202 are an integral structure. In this embodiment, the movement of the needle shaft 2 is realized by operating the handle 201.

Further, a connecting channel 203 is arranged in the fixed end 202, and the puncture needle 3 is communicated with the existing catheter 4 through the connecting channel 203, so that the injection liquid flows into the puncture needle 3 from the existing catheter 4, and the transfusion is realized; alternatively, blood is drawn from the body through the puncture needle 3 into the existing catheter 4.

Further, a baffle plate 103 is arranged at the front end of the fixed pipe 1. When transfusion or blood drawing is needed, the baffle 103 is pinched by the left thumb and the left index finger at the same time, the handle 201 is pinched by the right thumb and the right index finger at the same time, and the handle 201 is operated to move in the sliding groove 101, so that transfusion, blood drawing and the like are realized. Wherein, the baffle plate 103 and the fixed pipe 1 can be detachably connected or fixedly connected.

Furthermore, a limiting member 102 for limiting the needle handle 2 is disposed on the sliding groove 101. When the puncture needle 3 is pulled out, the baffle 103 is pinched by the left thumb and the left index finger at the same time, the handle 201 is pinched by the right thumb and the right index finger at the same time, the handle 201 is operated to move backwards in the sliding groove 101, and when the sliding groove 101 moves to the rear end of the fixed tube 1, the handle 201 is limited by the limiting piece 102, so that the puncture needle 3 is prevented from being driven by the handle 201 to move forwards.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-puncture needle is characterized by comprising a needle handle and a fixed tube, wherein a sliding groove is formed in the side surface of the fixed tube, the sliding groove does not penetrate through the two ends of the fixed tube, and the needle handle is arranged in the sliding groove; one end of the needle handle is connected with the puncture needle, and the sum of the lengths of the needle handle and the puncture needle is slightly longer than the length of the sliding groove; the other end of the needle handle is connected with an existing catheter which can penetrate into the fixed tube, and the puncture needle is communicated with the existing catheter; one end of the fixed tube, which is close to the existing catheter, is provided with a limiting piece, and the length of the limiting piece from one end of the sliding groove, which is close to the existing catheter, is equivalent to the length of the needle handle so as to limit the needle handle and prevent the puncture needle from penetrating out of the end surface of the fixed tube; when the puncture needle is used, the needle handle can drive the puncture needle to move in the sliding groove, so that the puncture needle penetrates out of the end face of the fixed tube.

2. A puncture needle according to claim 1, wherein the needle shaft includes a handle and a fixing end, the handle is fixed to the fixing end such that the needle shaft is formed in a T-shape, and the puncture needle and the existing catheter are fixed to both ends of the fixing end, respectively.

3. A puncture needle according to claim 2, wherein the handle and the fixed end are of a unitary construction.

4. A puncture needle according to claim 2 or 3, wherein a connecting passage is provided in the fixing end, through which the puncture needle communicates with an existing catheter.

5. A puncture needle according to claim 4, wherein a stopper is provided at the front end of the fixing tube.