CN217852982U

CN217852982U - Prevent stabbing artery blood taking needle

Info

Publication number: CN217852982U
Application number: CN202122658516.3U
Authority: CN
Inventors: 郭丹; 安雪瑾; 王秋芳; 朱晓芳; 李亚文
Original assignee: Henan Provincial Peoples Hospital
Current assignee: Henan Provincial Peoples Hospital
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-11-22
Anticipated expiration: 2031-11-02

Abstract

An anti-stabbing artery blood taking needle effectively solves the problem that the existing artery blood taking needle is easy to stab medical care personnel; the needle cylinder is coaxially and slidably connected with a piston in an up-and-down axial direction, a needle core is coaxially and detachably connected with the upper end of the needle cylinder, lower spiral blocks in the up-and-down axial direction are respectively arranged at the front end and the rear end of the outer edge surface of the needle cylinder, the upper surface of the lower spiral block is gradually raised clockwise, a rotating shell is coaxially arranged on the needle cylinder, upper spiral blocks in the up-and-down axial direction are respectively arranged at the front end and the rear end in the rotating shell, the lower surface of the upper spiral block is gradually lowered anticlockwise and is contacted with the lower spiral block, left and right sides of the inner side wall on the rotating shell are respectively provided with left and right push blocks, and opposite ends of the two push blocks are inserted between the needle core and the needle cylinder; the utility model relates to an ingenious, convenient to use.

Description

Prevent stabbing artery blood taking needle

Technical Field

The utility model relates to a clinical laboratory technical field, especially a prevent stabbing artery blood taking needle.

Background

Medical personnel need gather arterial blood sometimes when examining the patient, need take off the nook closing member after the collection finishes, and current artery blood taking needle can stab medical personnel's hand when medical personnel take off the nook closing member to increase medical personnel's misery, and in current artery blood taking needle can't prevent external air admission blood, thereby influence the inspection result.

SUMMERY OF THE UTILITY MODEL

To the above situation, in order to remedy the deficiencies of the prior art, the utility model aims to provide a puncture-proof arterial blood taking needle, which effectively solves the problem that the existing arterial blood taking needle easily punctures medical care personnel.

The technical scheme of its solution is, the utility model discloses an upper and lower axial and opening cylinder up, coaxial sliding connection has the piston in the cylinder, cylinder upper end coaxial dismantlement is connected with the nook closing member, axial lower spiral piece about both ends are equipped with respectively around the cylinder outer fringe face, the upper surface of lower spiral piece risees along clockwise gradually, the coaxial shell that rotates that is equipped with on the cylinder, both ends are equipped with axial last spiral piece about respectively around in the shell rotates, the lower surface of going up the spiral piece reduces and contacts with lower spiral piece along anticlockwise gradually, the left and right sides of inside wall is equipped with the ejector pad of left and right sides direction respectively on the shell rotates, the looks remote site of two ejector pads inserts between nook closing member and the cylinder.

The utility model relates to an ingenious, convenient to use rotates the shell through rotating, can realize pulling out the nook closing member automatically, has avoided medical personnel direct contact nook closing member and the condition emergence of being stabbed, can prevent simultaneously in the air admission blood of external world.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is the ladder cuts open main visual axis mapping of the utility model.

Fig. 3 is a full-section right perspective view diagram of the utility model.

Fig. 4 is a left side perspective view of the present invention without the rotating housing.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

The needle cylinder comprises a needle cylinder 1 with an upward axial direction and an upward opening, a piston 2 is coaxially and slidably connected in the needle cylinder 1, a needle core 3 is coaxially detachably connected to the upper end of the needle cylinder 1, an upper spiral block 4 and a lower spiral block 4 which are in the upper axial direction and the lower axial direction are respectively arranged at the front end and the rear end of the outer edge surface of the needle cylinder 1, the upper surface of the lower spiral block 4 is gradually lifted clockwise, a rotating shell 5 is coaxially arranged on the needle cylinder 1, an upper spiral block 6 which is in the upper axial direction and the lower axial direction is respectively arranged at the front end and the rear end in the rotating shell 5, the lower surface of the upper spiral block 6 is gradually lowered anticlockwise and is contacted with the lower spiral block 4, pushing blocks 7 in the left and right directions are respectively arranged at the left side and the right side of the inner side wall of the rotating shell 5, and the opposite ends of the two pushing blocks 7 are inserted between the needle core 3 and the needle cylinder 1.

In order to prevent outside air from entering the injection tube, the rear end of the rotating shell 5 is slidably connected with an upper axial blocking plate 8 and a lower axial blocking plate 8, the lower end of the blocking plate 8 is connected with the rotating shell 5 through a tension spring 9 in the front-back direction, and the blocking plate 8 can block the rotating shell 5.

In order to facilitate the medical staff to reset the rotating shell 5, the needle cylinder 1 is sleeved with a spring 10 between the lower spiral block 4 and the rotating shell 5.

In order to facilitate the medical staff to move the piston 2, the lower end of the piston 2 is coaxially provided with a pull rod 11 with the lower end penetrating through the syringe 1.

In order to facilitate the rotation of the rotating shell 5 by medical personnel, a plurality of rotating grooves 12 which are distributed along the circumferential direction and are in the vertical direction are arranged on the outer edge surface of the rotating shell 5.

In order to prevent the stylet 3 from being polluted by the outside, the upper end of the rotating shell 5 is coaxially and detachably connected with a protective cover 13 with a downward opening, and the stylet 3 is positioned in the protective cover 13.

When the utility model is used, the tension spring 9 has forward tension and the front end of the blocking plate 8 is in contact with the protective cover 13 in the original state, the rotary shell 5 extends out of the upper end of the needle cylinder 1, when the artery blood sampling of a patient is needed, medical personnel take off the protective cover 13, and at the moment, the blocking plate 8 moves forward due to the forward tension of the tension spring 9 until the front end is in contact with the lower end of the needle core 3;

at the moment, medical personnel can take arterial blood, when the blood sampling is finished and the needle core 3 needs to be pulled out, the medical personnel holds the needle cylinder 1 and enables the needle core 3 to aim at the medical garbage can, at the moment, the medical personnel clockwise rotates the rotating shell 5, the rotating shell 5 drives the upper spiral block 6 to clockwise rotate on the lower spiral block 4, at the moment, the lower spiral block 4 drives the upper spiral block 6 to move upwards, and the upper spiral block 6 drives the rotating shell 5 to move upwards;

the rotating shell 5 moves upwards and compresses the spring 10 upwards at the same time, so that the spring 10 has downward elasticity, the rotating shell 5 rotates clockwise and moves upwards at the same time, the rotating shell 5 moves upwards and drives the push block 7 to move upwards, the push block 7 moves upwards for a certain distance and then contacts with the lower end of the stylet 3, at the moment, the medical staff continues to rotate the rotating shell 5 clockwise, the rotating shell 5 drives the push block 7 to continue to move upwards, and at the moment, the push block 7 moves upwards and pushes the stylet 3 to move upwards at the same time;

after the needle core 3 moves upwards for a certain distance, the needle core is separated from the contact with the needle cylinder 1 and falls into a garbage can, at the moment, the blocking plate 8 moves forwards due to the forward pulling force of the tension spring 9, the blocking plate 8 moves forwards for a certain distance to block the rotating shell 5, so that outside air is prevented from entering blood of the injection cylinder, at the moment, medical personnel can stop rotating and loosen the rotating shell 5, the rotating shell 5 moves downwards due to the downward elastic force of the spring 10, and the rotating shell 5 moves downwards and rotates anticlockwise through the matching of the lower spiral block 4 and the upper spiral block 6;

the rotating shell 5 drives the blocking plate 8 to move downwards, the lower end of the blocking plate 8 moves downwards by one end distance and then contacts with the upper end of the needle cylinder 1, the needle cylinder 1 is sealed, external air is prevented from entering blood of the injection cylinder, when medical workers need to operate the blood of the needle cylinder 1, the medical workers work the blocking plate 8 backwards, and the blocking plate 8 is enabled to be removed from blocking the needle cylinder 1.

The utility model discloses simple structure, the design is novel, high durability and convenient use, therefore, the clothes hanger is strong in practicability, the cylinder that is equipped with, the nook closing member, the shell rotates, go up the spiral piece, lower spiral piece, the ejector pad, the piston etc., medical personnel of can being convenient for carry out the artery blood sampling to the patient, can avoid medical personnel to be stabbed the risk when taking off the nook closing member simultaneously, medical personnel's misery has been reduced, the closure plate that is equipped with, extension spring etc., can avoid in the external air admission blood, the spring that is equipped with, medical personnel of can being convenient for operate, the safety cover that is equipped with, can avoid the nook closing member to be contaminated by the external world.

Claims

1. The utility model provides a prevent stabbing artery blood taking needle, including upper and lower axial and opening syringe (1) up, a serial communication port, coaxial sliding connection has piston (2) in syringe (1), syringe (1) upper end coaxial dismantlement is connected with nook closing member (3), both ends are equipped with axial lower spiral piece (4) about respectively around syringe (1) outer fringe face, the upper surface of lower spiral piece (4) risees along clockwise gradually, coaxial being equipped with rotation shell (5) on syringe (1), both ends are equipped with axial last spiral piece (6) about respectively around in rotation shell (5), the lower surface of going up spiral piece (6) reduces and contacts with spiral piece (4) down along anticlockwise gradually, the left and right sides of inside wall is equipped with ejector pad (7) of left and right directions respectively on rotation shell (5), the looks remote site insert between nook closing member (3) and syringe (1) of two ejector pad (7).

2. A puncture-proof arterial blood taking needle according to claim 1, wherein the rear end of the rotating shell (5) is slidably connected with a blocking plate (8) in the vertical axial direction, the lower end of the blocking plate (8) is connected with the rotating shell (5) through a tension spring (9) in the front-back direction, and the blocking plate (8) can shield the rotating shell (5).

3. A puncture-proof arterial blood taking needle according to claim 1, characterized in that the needle cylinder (1) is sleeved with a spring (10) positioned between the lower spiral block (4) and the rotary shell (5).

4. A puncture preventing arterial blood taking needle according to claim 1, wherein the lower end of the piston (2) is coaxially provided with a pull rod (11) the lower end of which penetrates through the needle cylinder (1).

5. A puncture-proof arterial blood collection needle according to claim 1, wherein the outer edge surface of the rotary case (5) is provided with a plurality of rotary grooves (12) which are distributed along the circumferential direction and are arranged in the vertical direction.

6. A puncture-proof arterial blood taking needle according to claim 1, characterized in that the upper end of the rotary shell (5) is coaxially and detachably connected with a protective cover (13) with a downward opening, and the needle core (3) is positioned in the protective cover (13).