CN211705491U - No damage needle - Google Patents

Abstract

The present application discloses an atraumatic needle, which includes a hose, a wing, a steel needle, and a clip; the clip is arranged on the hose and is used to control the on-off of the hose; the steel needle is formed at the first end of the hose, and is used for It is used to pierce the port of the infusion port; the wings are formed on both sides of the first end of the hose and are made of soft plastic sheets; the upper side of the first end of the hose is fixed with a square made of hard plastic A puncture aid block made of hard plastic is detachably mounted on the card; a track groove is formed on the lower side of the puncture aid block, and the card is inserted into the track groove. By installing a puncture auxiliary block on the upper side of the non-damaged needle, a rigid connection is formed, and during puncturing, the stability of the steel needle is ensured, and the puncture can be completed quickly and accurately.

Description

No damage needle

technical field

The present application relates to a medical device, in particular to a non-destructive needle.

Background technique

Due to the long course of disease and many treatment options, cancer patients need to undergo repeated chemotherapy, surgery, anti-infection and nutritional support. The traditional infusion method is to inject fluid through peripheral superficial venous puncture, which is likely to cause superficial phlebitis, drug leakage, local Complications such as hard swelling and even large-scale tissue necrosis have caused great pain to patients. An infusion port (called Port in medicine) is an infusion method for the convenience of long-term infusion. The infusion port is placed into the human body to reduce the stimulation of the patient's blood vessels by chemotherapy drugs, and mainly includes a port seat, a catheter and a non-invasive 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 vascular channel, which can play a similar role as a port, so it is called "infusion port".

The existing atraumatic needle 10 is shown in FIGS. 1-5 , which includes a hose 11 , a wing 12 , a steel needle 13 , and a clip 14 ; ; Steel needle 13 is formed on the first end of the hose for piercing the port; Wings 12 are formed on both sides of the first end of the hose 11, made of soft plastic sheet, and serve as a handle when puncturing, As shown in FIGS. 4 and 5 , after the puncture is completed, the wings are fixed to the body surface of the patient through a film. Since the wings 12 are relatively soft, the comfort is relatively good when they are attached to the patient's skin.

Because the texture of the wing portion 12 is relatively soft, the needle of the steel needle will be unstable during the puncturing process, and it is difficult to puncture the port seat accurately and quickly.

Utility model content

In view of the above problems, the present application aims to provide an atraumatic needle, which can keep the steel needle stable during the puncture process.

The non-damaged needle of the present application includes a hose, a wing, a steel needle, and a clip; the clip is arranged on the hose and is used to control the on-off of the hose; the steel needle is formed on the first end of the hose and is used for puncturing The port seat of the infusion port; the wings are formed on both sides of the first end of the hose and are made of soft plastic sheet;

A square card made of hard plastic is fixed on the upper side of the first end of the hose;

A puncture aid block made of hard plastic is detachably mounted on the card; the puncture aid block is formed with a track groove on its lower side, and the card is inserted into the track groove.

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

Preferably, recesses are formed on both sides of the puncture auxiliary block.

By installing the puncture auxiliary block on the upper side of the non-destructive needle to form a rigid connection, the stability of the steel needle is ensured during puncture, and it is convenient to complete the puncture quickly and accurately; To facilitate fixation of the atraumatic needle through the film.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the non-destructive needle of the prior art;

Fig. 2 is the top-view structure schematic diagram of the non-damaged needle of Fig. 1;

Fig. 3 is the side view structure schematic diagram of the atraumatic needle of Fig. 1;

Fig. 4 is the schematic diagram of the wing portion of the non-damaged needle of Fig. 1 being bent upward to form a handle;

Fig. 5 is the side view structure schematic diagram of Fig. 4;

Fig. 6 is the front view structure schematic diagram of the non-damaged needle of the application;

Fig. 7 is the side view structure schematic diagram of the non-damaged needle of Fig. 6;

FIG. 8 is a schematic diagram of the non-damaged needle of FIG. 6 when the wings are bent upward for puncturing;

FIG. 9 is a schematic front view of the non-destructive needle of FIG. 6 after removing the puncture auxiliary block;

FIG. 10 is a schematic top view of the non-damaged needle of FIG. 9;

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

Figure 12 is a schematic side view of a puncture auxiliary block;

FIG. 13 is a schematic front view of the structure of the puncture auxiliary block.

Detailed ways

Hereinafter, the damage-free needle of the present application will be described in detail with reference to the accompanying drawings.

The non-damaged needle of the present application retains the structure of the non-damaged needle in the prior art, that is, it includes a hose 11, a wing 12, a steel needle 13, and a clip 14; the clip 14 is provided on the hose 11 for controlling The on-off of the hose 11; the steel needle 13 is formed at the first end of the hose 11 for piercing the port of the infusion port; the wings 12 are formed on both sides of the first end of the hose 11, made of soft plastic made of slices.

The difference from the non-damaged needle of the prior art is that, in the non-damaged needle of the present application, a square card 15 made of hard plastic is fixed on the upper side of the first end of the flexible tube 11 .

A puncture aid block 20 made of hard plastic is detachably mounted on the card 15 ; the puncture aid block 20 is formed with a track groove 21 on its lower side, and the card 15 is inserted in the track groove 21 , as shown in FIGS. 6 and 7 .

The lower part of the track groove 21 forms an arc-shaped curved surface to closely fit the upper side surface of the first end of the hose.

Recesses 22 are formed on both sides of the puncture aid block 20 to facilitate holding the puncture aid block 20 firmly for puncturing.

When using, first install the puncture auxiliary block on the card, as shown in Figures 6 and 7; then bend the wings upward to fit both sides of the puncture auxiliary block, fully expose the steel needle to the sight, and pinch the operator's fingers. Bend up the wings and puncture aid block for puncturing. After the puncture is complete, loosen the wings and remove the puncture aid block from the card, as shown in Figure 9-11; then secure the wings with the film.

Claims (3)

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:

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.

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.

Images