CN211705491U

CN211705491U - Needle without injury

Info

Publication number: CN211705491U
Application number: CN202020209685.1U
Authority: CN
Inventors: 翟丹丹; 郭梅
Original assignee: Chinese PLA General Hospital
Current assignee: Chinese PLA General Hospital
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-10-20
Anticipated expiration: 2030-02-26

Abstract

The application discloses a non-invasive needle, which comprises a hose, a wing part, a steel needle and a clamp; the clamp is arranged on the hose and used for controlling the on-off of the hose; a steel needle formed at a first end of the hose for piercing a port seat of the port; wing parts formed at both sides of the first end of the hose and made of a soft plastic sheet; a square clamping piece made of hard plastic is fixed on the upper side of the first end of the hose; a puncture auxiliary block made of hard plastic is detachably arranged on the card; the puncture auxiliary block is formed with a rail groove at a lower side thereof, and the card is inserted into the rail groove. The upper side of the nondestructive needle is provided with the puncture auxiliary block to form rigid connection, so that the stability of the steel needle is ensured during puncture, and the puncture is conveniently, quickly and accurately completed.

Description

Needle without injury

Technical Field

The present application relates to medical devices, and more particularly to a atraumatic needle.

Background

Because the course of disease is long, the treatment scheme is many, need to accept treatments such as chemotherapy, operation, anti-infection and nutrition support repeatedly, traditional infusion method is through peripheral superficial vein puncture injection liquid, easily causes complications such as superficial phlebitis, liquid medicine seepage, local hard swelling, even large tracts of land tissue necrosis, has caused very big misery to the patient. A Port (medically known as Port) is an infusion method for facilitating long-term infusion. The transfusion port is arranged in a human body for relieving the stimulation of chemotherapy drugs on blood vessels of a patient, and mainly comprises a port seat, a catheter and an atraumatic needle (also called a butterfly wing needle). After the injection seat is implanted subcutaneously, the catheter inserted into the central vein is connected to establish a long-term blood vessel channel, and the function similar to that of a port can be played, so the device is called as an 'infusion port'.

The existing atraumatic needle 10 is shown in fig. 1-5, and comprises a hose 11, a wing 12, a steel needle 13 and a clip 14; the clamp 14 is arranged on the hose 11 and used for controlling the on-off of the hose 11; a steel needle 13 is formed at the first end of the hose for piercing the port seat; wings 12 are formed on both sides of the first end of the hose 11, made of a soft plastic sheet, and serve as handles during puncturing, as shown in fig. 4 and 5, and are fixed to the body surface of the patient by means of a film after completion of puncturing, and comfort is relatively good when attaching to the skin of the patient because the wings 12 are soft.

Due to the soft texture of the wings 12, the needle tip of the steel needle is unstable during the puncture process and is difficult to accurately and quickly penetrate into the port seat.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application aims to provide an atraumatic needle capable of keeping a steel needle stable during puncturing.

The atraumatic needle comprises a hose, a wing part, a steel needle and a clamp; the clamp is arranged on the hose and used for controlling the on-off of the hose; a steel needle formed at a first end of the hose for piercing a port seat of the port; wing parts formed at both sides of the first end of the hose and made of a soft plastic sheet;

a square clamping piece made of hard plastic is fixed on the upper side of the first end of the hose;

a puncture auxiliary block made of hard plastic is detachably arranged on the card; the puncture auxiliary block is formed with a rail groove at a lower side thereof, and the card is inserted into the rail groove.

Preferably, a lower portion of the rail groove forms an arc-shaped curved surface to closely fit an upper side of the first end of the hose.

Preferably, recesses are formed at both sides of the penetration assisting block.

The puncture auxiliary block is arranged on the upper side of the atraumatic needle to form rigid connection, so that the stability of the steel needle is ensured during puncture, and the puncture is conveniently and accurately completed; the puncture auxiliary block can be taken down from the non-invasive needle after the puncture is finished so as to fix the non-invasive needle through the film.

Drawings

FIG. 1 is a front view of a prior art atraumatic needle;

FIG. 2 is a top view of the atraumatic needle of FIG. 1;

FIG. 3 is a side view of the atraumatic needle of FIG. 1;

FIG. 4 is a schematic view of the atraumatic needle of FIG. 1 with the wings bent up to form a handle;

FIG. 5 is a side view of the structure of FIG. 4;

FIG. 6 is a front view of the atraumatic needle of the present application;

FIG. 7 is a side view of the atraumatic needle of FIG. 6;

FIG. 8 is a schematic view showing the atraumatic needle of FIG. 6 with the wings bent upward;

FIG. 9 is a front view of the atraumatic needle of FIG. 6 with the puncture aid removed;

FIG. 10 is a top view schematic of the atraumatic needle of FIG. 9;

FIG. 11 is a side elevational view of the atraumatic needle of FIG. 9;

FIG. 12 is a schematic side view of the lancing auxiliary block;

fig. 13 is a front view schematically showing the structure of the puncture auxiliary block.

Detailed Description

The atraumatic needle of the present application will be described in detail below with reference to the drawings.

The atraumatic needle of the application reserves the structure of the atraumatic needle in the prior art, namely the atraumatic needle comprises a hose 11, a wing part 12, a steel needle 13 and a clamp 14; the clamp 14 is arranged on the hose 11 and used for controlling the on-off of the hose 11; a steel needle 13 is formed at a first end of the hose 11 for piercing a port seat of the port; wing parts 12 are formed at both sides of the first end of the hose 11 and are made of a soft plastic sheet.

The atraumatic needle of the present application is different from the atraumatic needle of the prior art in that a square card 15 made of hard plastic is fixed to the upper side of the first end of the hose 11.

A puncture auxiliary block 20 made of hard plastic is detachably mounted on the card 15; the puncture auxiliary block 20 is formed with a rail groove 21 at a lower side thereof, and the card 15 is inserted into the rail groove 21, as shown in fig. 6 and 7.

The lower portion of the rail groove 21 forms an arc-shaped curved surface to be closely attached to the upper side of the first end of the hose.

The auxiliary piercing block 20 is formed with recesses 22 at both sides thereof to facilitate firmly holding the auxiliary piercing block 20 for piercing.

When in use, the puncture auxiliary block is firstly arranged on the card, as shown in fig. 6 and 7; then the wing part is bent upwards to be attached to two sides of the puncture auxiliary block, the steel needle is fully exposed under the sight line, and the operator fingers pinch the bent-up wing part and the puncture auxiliary block to puncture. After the piercing is completed, the wings are released and the piercing aid is removed from the card, as shown in FIGS. 9-11; the wings are then secured with a film.

Claims

1. A non-traumatic needle comprises a hose, a wing part, a steel needle and a clamp; the clamp is arranged on the hose and used for controlling the on-off of the hose; a steel needle formed at a first end of the hose for piercing a port seat of the port; wing parts formed at both sides of the first end of the hose and made of a soft plastic sheet; the method is characterized in that:

2. The atraumatic needle of claim 1, wherein:

the lower part of the track groove forms an arc-shaped curved surface so as to be tightly attached to the upper side face of the first end of the hose.

3. The atraumatic needle of claim 1, wherein:

and concave parts are formed on two sides of the puncture auxiliary block.