CN218075006U

CN218075006U - Negative pressure blood drawing needle with anti-needling effect

Info

Publication number: CN218075006U
Application number: CN202220741417.3U
Authority: CN
Inventors: 梁丽娜; 谷一梅; 郑云; 祝赛; 葛刘娜
Original assignee: First Affiliated Hospital of Anhui Medical University
Current assignee: First Affiliated Hospital of Anhui Medical University
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-12-20
Anticipated expiration: 2032-04-01

Abstract

The utility model relates to a negative pressure blood drawing needle with anti-needling effect, which comprises an outer cylinder body, a soft catheter and a needle body which are respectively arranged at the upper end and the lower end of the outer cylinder body, and a needle head sleeve, wherein the needle head sleeve is arranged at the outer part of the needle body; when blood is drawn, the needle cover is pulled towards the upper part of the outer barrel until the lower end of the needle cover is exposed out of the needle body and the needle body is clamped by the clamping piece, and the needle cover is pushed back to be reset after blood is drawn so as to wrap the needle body. The utility model discloses have and prevent the acupuncture effect, and simple structure, the cost is low, and application prospect is good.

Description

Negative pressure blood drawing needle with anti-needling effect

Technical Field

The utility model belongs to the field of medical supplies, concretely relates to negative pressure blood drawing needle with prevent acupuncture effect.

Background

The needle tube for negative pressure blood drawing is externally provided with an outer needle point body, the packaged negative pressure blood drawing needle is provided with a needle head sleeve for sealing to protect the outer needle point body from being polluted, when the needle head sleeve is used, the needle head sleeve is taken off, the outer needle point body is inserted into a blood vessel of a detected person, the needle tube is provided with a piston rod or is connected with a negative pressure blood test tube, after the blood drawing action is finished, the outer needle point body is collected in the needle head sleeve by using a needle head sleeve and then is recovered and treated in a centralized way, and medical care personnel carelessly poke the needle body in the practice process to cause injury; moreover, after the needle cover is pulled out, the medical staff may lose the needle cover carelessly, so that the used outer needle tip body is exposed outside, and the risk of needle stick still exists during the recovery of medical waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a negative pressure blood drawing needle with anti-needling effect, which has simple structure and reasonable design for solving the problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a negative pressure blood drawing needle with anti-needle-prick effect comprises an outer barrel, a soft catheter and a needle body which are respectively arranged at the upper end and the lower end of the outer barrel, and a needle head sleeve, wherein the needle head sleeve is arranged outside the needle body;

when blood is drawn, the needle cover is pulled towards the upper part of the outer barrel until the lower end of the needle cover is exposed out of the needle body and the needle body is clamped by the clamping piece, and the needle cover is pushed back to be reset after blood is drawn so as to wrap the needle body.

As a further optimization scheme of the utility model, the upper end of syringe needle cover is equipped with first fixed plate, the upper end of outer barrel is equipped with the second fixed plate, first fixed plate is unanimous and through setting up the mutual fixed connection of fastener with the second fixed plate structure.

As a further optimization scheme of the utility model, the fixed lug of first fixed plate up end is located for the symmetry to the fastener, the catching groove corresponding with fixed lug is seted up to the symmetry on the second fixed plate.

As a further optimization scheme of the utility model, the length of the outer cylinder body is the same as that of the needle cover, and the cylinder diameter of the outer cylinder body is smaller than that of the needle cover.

As the utility model discloses a further optimization scheme, the holder is including locating the cylinder of the interior bottom of syringe needle cover, the through hole has been seted up to cylinder inside and the symmetry is equipped with two centre gripping spheroids in the through hole, the centre gripping spheroid is outside to be connected with the cylinder inner wall through setting up the spring part, two the spheroidal relative terminal surface of centre gripping all is equipped with the cotton layer of absorption.

As a further optimization scheme of the utility model, the lower end of the outer cylinder body is provided with a needle head seat for fixing the needle body.

As a further optimization scheme of the utility model, the one end that outer barrel was kept away from to the soft pipe is equipped with the connector, and the outside of connector is pegged graft and is had dustproof cap.

The beneficial effects of the utility model reside in that:

(1) The utility model has the advantages that the needle cover is arranged, when blood is drawn, the needle cover is pulled towards the upper part of the outer cylinder until the lower end of the needle cover exposes out of the needle body and the needle body is clamped by the clamping piece, and the needle cover is pushed back to reset after the blood is drawn to wrap the needle body, so that the structural design can effectively prevent medical personnel from being pricked by the needle and avoid the problem of losing the needle cover;

(2) The utility model discloses a set up the holder, when external force pulling syringe needle cover, syringe needle cover atress makes and produces the contact between two centre gripping clamp bodies and the needle body, causes the spring part that the centre gripping spheroid is connected to produce slight deformation back, and the needle body passes so far from the syringe needle cover bottom from the slit and exposes, and the centre gripping spheroid of two relative settings realizes spacing centre gripping to the needle body well simultaneously, and then has guaranteed the structural stability when puncturing.

Drawings

Fig. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a diagram of the working state provided by the present invention;

FIG. 3 is a schematic view of the insertion structure of the needle cover and the needle body provided by the present invention;

fig. 4 is a schematic structural view of the clamping member provided by the present invention;

in the figure: 1. an outer cylinder; 2. a soft catheter; 3. a needle cover; 4. a needle body; 5. a clamping member; 51. a cylinder; 52. a through hole; 53. clamping the ball; 54. a spring member; 55. an absorbent cotton layer; 6. a needle head seat; 7. a first fixing plate; 8. fixing the bump; 9. a second fixing plate; 10. buckling grooves; 11. a connector; 12. a dust cap.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention; in the description of the present invention, "a plurality" or "a plurality" means two or more unless otherwise specified.

Referring to the attached drawings 1-4 of the specification, the negative pressure blood drawing needle with the anti-needle-prick effect comprises an outer barrel 1, a soft catheter 2 and a needle body 4 which are respectively arranged at the upper end and the lower end of the outer barrel 1, and a needle cover 3, wherein the needle cover 3 is arranged outside the needle body 4 and plays a role of sealing the needle body 4 during packaging, a needle seat 6 for fixing the needle body 4 is arranged at the lower end of the outer barrel 1, the upper end of the needle cover 3 is sleeved on the outer wall of the outer barrel 1 and is in sliding fit with the outer barrel 1, the length of the outer barrel 1 is the same as that of the needle cover 3, and the tube diameter of the outer barrel 1 is smaller than that of the needle cover 3;

the syringe needle cover is characterized in that a first fixing plate 7 is arranged at the upper end of the syringe needle cover 3, a second fixing plate 9 is arranged at the upper end of the outer barrel 1, the first fixing plate 7 and the second fixing plate 9 are consistent in structure and are fixedly connected with each other through a fastener, the fastener is a fixing lug 8 symmetrically arranged on the upper end face of the first fixing plate 7, and a fastening groove 10 corresponding to the fixing lug 8 is symmetrically arranged on the second fixing plate 9.

The specific operation process is that during the blood drawing operation, the needle cover 3 is pulled to move along the upper part of the outer barrel 1, because the lower end of the needle cover 3 is in an open shape, at the moment, the needle 4 in the needle cover 3 is exposed from the lower end opening, at the moment, the first fixing plate 7 at the upper end of the needle cover 3 contacts the second fixing plate 9 at the upper end of the outer barrel 1, and meanwhile, after the fixing lug 8 on the first fixing plate 7 is buckled with the buckle groove 10 on the second fixing plate 9, the temporary structure fixation of the needle cover 3 and the outer barrel 1 can be realized, and then, because the opening is provided with the clamping piece 5, the stable clamping of the needle 4 can be realized, thereby ensuring that the needle 4 is not easy to generate the structure shake during the puncture;

after drawing blood, pulling syringe needle cover 3 makes first fixed

plate

7 and 9 structural separation of second fixed plate, and the outside barrel of pulling syringe needle cover 3 below removes and makes needle body 4 withdraw syringe needle cover 3, avoids needle body 4 to expose outside, also need not medical personnel oneself with syringe needle cover 3 cover on needle body 4, can effectually prevent that medical personnel from being needled.

Further, the holding member 5 includes a cylinder 51 disposed at the inner bottom of the needle cover 3, a through hole 52 is disposed inside the cylinder 51, two holding spheres 53 are symmetrically disposed in the through hole 52, the outer portions of the holding spheres 53 are connected to the inner wall of the cylinder 51 by disposing a spring member 54, opposite end surfaces of the two holding spheres 53 are both provided with an absorbent cotton layer 55, the absorbent cotton layer 55 can absorb blood on the needle 4 when the needle 4 is recovered, so as to ensure no blood residue, specifically, the two holding spheres 53 are symmetrically disposed in the through hole 52, a slit is formed at the opposite position of the two holding spheres 53, when the needle 4 passes through the through hole 52 inside the cylinder 51, the needle 4 first contacts the slit between the two holding spheres 53, when the needle cover 3 is pulled by an external force, the two holding spheres 53 contact the needle 4, so that the spring member 54 connected to the holding spheres 53 is slightly deformed, the needle 4 passes through the slit, so as to pass through the bottom end of the needle cover 3, and the two holding spheres 53 disposed opposite holding spheres expose the needle 4 to achieve a limiting holding and holding effect of the needle, thereby ensuring structural stability during puncturing.

The one end that outer barrel 1 was kept away from to soft pipe 2 is equipped with connector 11, and the blood pipe of collecting blood is connected to connector 11, can constitute the collection pipeline, and the outside of connector 11 is pegged graft and is had dustproof cap 12, has dustproof effect and can guarantee the dustless effect of connector 11.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A negative pressure blood drawing needle with an anti-needle-prick effect comprises an outer cylinder body (1), a soft catheter (2) and a needle body (4) which are respectively arranged at the upper end and the lower end of the outer cylinder body (1), and is characterized by also comprising a needle cover (3), wherein the needle cover (3) is arranged outside the needle body (4), the upper end of the needle cover (3) is sleeved on the outer wall of the outer cylinder body (1) and is in sliding fit with the outer cylinder body and the needle body, the lower end of the needle cover (3) is in an opening shape, and a clamping piece (5) for clamping the needle body (4) is arranged at the opening;

when blood is drawn, the needle cover (3) is pulled towards the upper part of the outer barrel body (1) until the lower end of the needle cover (3) is exposed out of the needle body (4) and the needle body (4) is clamped by the clamping piece (5), and the needle cover (3) is pushed back to reset to wrap the needle body (4) inside after blood is drawn.

2. The negative pressure blood drawing needle with the anti-needle-prick effect as claimed in claim 1, wherein: the syringe needle cover is characterized in that a first fixing plate (7) is arranged at the upper end of the syringe needle cover (3), a second fixing plate (9) is arranged at the upper end of the outer barrel (1), and the first fixing plate (7) and the second fixing plate (9) are consistent in structure and are fixedly connected with each other through a fastener.

3. The negative pressure blood drawing needle with the anti-needle-prick effect as claimed in claim 2, wherein: the buckling pieces are fixing lugs (8) symmetrically arranged on the upper end face of the first fixing plate (7), and buckling grooves (10) corresponding to the fixing lugs (8) are symmetrically formed in the second fixing plate (9).

4. The negative pressure blood drawing needle with the anti-needle-prick effect as claimed in claim 1, wherein: the length of the outer cylinder body (1) is the same as that of the needle cover (3), and the cylinder diameter of the outer cylinder body (1) is smaller than that of the needle cover (3).

5. The negative pressure blood drawing needle with the anti-needle-prick effect as claimed in claim 1, wherein: the needle holder (5) comprises a cylinder (51) arranged at the inner bottom of the needle cover (3), a through hole (52) is formed in the cylinder (51), two holding spheres (53) are symmetrically arranged in the through hole (52), the outer portions of the holding spheres (53) are connected with the inner wall of the cylinder (51) through spring pieces (54), and absorbing cotton layers (55) are arranged on the opposite end faces of the two holding spheres (53).

6. The negative pressure blood drawing needle with the anti-needle-prick effect as claimed in claim 1, wherein: the lower end of the outer cylinder body (1) is provided with a needle head seat (6) for fixing the needle body (4).

7. The negative pressure blood drawing needle with the anti-needle-prick effect as claimed in claim 1, wherein: one end of the soft catheter (2) far away from the outer barrel (1) is provided with a connector (11), and a dustproof cap (12) is inserted outside the connector (11).