CN219630315U - One-time enhanced CT using high pressure-resistant safety intravenous indwelling needle - Google Patents

Abstract

The utility model belongs to the field of medical consumables, and relates to a disposable reinforced CT (computed tomography) high-pressure-resistant safe venous indwelling needle which comprises a needle, an extension tube and a stop assembly, wherein the needle is communicated with a high-pressure injector through the extension tube, and the stop assembly is arranged on the extension tube in a penetrating way; the needle head is connected with one end of the extension tube through a hose and is connected with the heparin cap; the stop assembly comprises a clip and a fixed ring, the fixed ring is sleeved on the extension tube through penetration, and the extension tube adopts a high-pressure-resistant catheter; the needle head comprises a funnel-shaped limit groove fixedly arranged in the front end of the tube seat; the tail end of the outer needle is penetrated through the front end of the tube seat and is correspondingly connected with the lower end of the limit groove; the inner needle is arranged in the outer needle in a penetrating way, the front end of the inner needle penetrates out of the outer needle, and the tail end of the inner needle penetrates through the limiting groove and the isolating plug fixedly arranged in the tube seat and is fixedly connected with the needle seat inserted into the tail end of the tube seat. The utility model has simple structure, and when a patient feels uncomfortable, the CT injection can be stopped to strengthen, the autonomous consciousness protection is carried out, the occurrence of unexpected situations is avoided, and the puncture-preventing needle head effectively protects the patient and medical staff.

Description

One-time enhanced CT using high pressure-resistant safe intravenous indwelling needle

technical field

The utility model relates to an indwelling needle, in particular to a high-voltage-resistant safe intravenous indwelling needle for disposable enhanced CT.

Background technique

During the process of enhanced CT, the patient will receive enhanced CT injection. The injection needs to use a high-pressure injector (50ml/min). Some people (especially the elderly and children) will experience strong discomfort due to blood vessel swelling and pain when injected with a high-pressure injector. , but no one can be left in the CT room, and this situation cannot be terminated or dealt with for the patient. The best way is to terminate the enhanced CT injection automatically when the patient feels a strong sense of discomfort. Therefore, the utility model is born.

Contents of the invention

In view of this, the purpose of this utility model is to provide a one-time enhanced CT using a high pressure resistant safe intravenous indwelling needle, which can quickly terminate the enhanced CT injection when the patient feels a strong sense of discomfort.

In order to achieve the above object, the technical scheme adopted is as follows:

One-time enhanced CT uses a high-pressure safe intravenous indwelling needle, including a needle, an extension tube and a cut-off assembly. The needle is connected to a high-pressure syringe through the extension tube, and the cut-off assembly is worn on the extension tube;

The needle is connected to a heparin cap through a flexible tube and one end of an extension tube;

The cut-off assembly includes a clip and a fixing ring, and the fixing ring is threaded on the extension tube through a thread, and the extension tube adopts a high-pressure-resistant conduit.

Preferably, the needle is a Braun venous indwelling needle.

Preferably, the needle comprises:

The pipe seat is fixed with a funnel-shaped limiting groove inside the front end, which is made of hard material;

The outer needle, the tail end of which is passed through the front end of the tube base and correspondingly connected with the lower end of the limit groove, is made of soft transparent material;

The inner needle is threaded inside the outer needle, the front end of the inner needle passes through the outer needle, and the tail end passes through the limiting groove and the isolation plug fixedly arranged in the tube base is fixedly connected with the needle base inserted into the tail end of the tube base;

One end of the hose connecting seat obliquely communicates with the limiting groove in the pipe seat and the cavity of the isolation plug, and the other end is connected with the hose.

Preferably, the front end of the tube base is covered with a needle sheath to protect the outer needle and the inner needle, and a handle part is provided on one side of the needle base to facilitate pulling out the inner needle.

Preferably, the hose is connected to the extension pipe through an integrally connected threaded joint.

Preferably, the extension tube has a length of 40-80 cm and is made of high-pressure resistant PVC material.

The beneficial effects of the utility model are:

The utility model has a simple structure and an ingenious design. When the patient feels strong discomfort, the enhanced CT injection can be terminated in time, and self-awareness protection can be carried out to avoid accidents. The anti-stab needle can effectively protect patients and medical staff.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure of the needle involved in the utility model.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

Please refer to Figure 1-2:

The one-time enhanced CT uses a high-pressure safe intravenous indwelling needle, including a needle 1, an extension tube 2 and a cut-off assembly 3. The needle 1 is connected to a high-pressure syringe through the extension tube 2, and the extension tube 2 is pierced with a cut-off assembly 3;

The needle 1 is connected to the heparin cap 4 through the hose 11 and one end of the extension tube 2;

The cut-off assembly 3 includes a clip 31 and a fixing ring 32. The fixing ring 32 is threaded on the extension tube 2 through a threading sleeve 33. The fixing ring 32 is softly connected with the threading sleeve 33. The extension tube 2 adopts a high-pressure conduit, and the fixing ring 32 Adopt rubber ring.

The needle 1 includes: a tube base 12, a funnel-shaped limiting groove 13 is fixedly installed inside the front end, and is made of hard material;

The outer needle 14, the tail end of which is passed through the front end of the tube base 12 and correspondingly connected with the lower end of the limiting groove 13, is made of soft transparent material;

The inner needle 15 is set in the outer needle 14, the front end of the inner needle 15 passes through the outer needle 14, and the tail end passes through the limiting groove 13 and the isolation plug 16 fixedly arranged in the tube base 12 and the plug connected to the tube base 12 tail end. The pin seat 17 is fixedly connected;

Hose connection seat 18, one end communicates obliquely with the spacer 13 in the tube seat 12 and the cavity of the isolation plug 16, and the other end is connected with the hose 11;

The front end of the tube base 12 is covered with a needle sheath 20 to protect the outer needle 14 and the inner needle 15, and the side of the needle base 17 is provided with a handle 21 that is convenient for pulling out the inner needle 15. The pipe 2 is connected, and the length of the extension pipe 2 is 40-80cm, which is made of high-pressure-resistant PVC material.

In addition, the needle can also adopt the Braun intravenous indwelling needle.

When in use, put the fixing ring 32 on the patient's finger to ensure that the extension tube 2 is in the hand of the patient, and the clamp 31 can be quickly and accurately closed, thereby stopping the injection of the high-pressure syringe and eliminating discomfort.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. The disposable reinforced CT high-pressure-resistant safe venous indwelling needle is characterized by comprising a needle head, an extension tube and a stop assembly, wherein the needle head is communicated with a high-pressure injector through the extension tube, and the stop assembly is arranged on the extension tube in a penetrating manner;

the needle head is connected with one end of the extension tube through a hose and is connected with the heparin cap;

the stop assembly comprises a clamp and a fixing ring, the fixing ring is sleeved on the extension tube in a penetrating mode, and the extension tube adopts a high-pressure-resistant catheter.

2. The single use enhanced CT use high pressure resistant safety intravenous needle of claim 1, wherein said needle is a belan intravenous needle.

3. The single use enhanced CT use high pressure resistant safety intravenous needle of claim 1, wherein the needle comprises:

the front end of the tube seat is fixedly provided with a funnel-shaped limit groove which is made of hard materials;

the tail end of the outer needle is penetrated at the front end of the tube seat and is correspondingly connected with the lower end of the limit groove, and is made of soft transparent material;

the inner needle is penetrated in the outer needle, the front end of the inner needle penetrates out of the outer needle, and the tail end of the inner needle penetrates through the limit groove and the isolation plug fixedly arranged in the tube seat and is fixedly connected with the needle seat inserted at the tail end of the tube seat;

one end of the hose connecting seat is obliquely communicated with the limiting groove in the tube seat and the cavity of the isolating plug, and the other end of the hose connecting seat is connected with the hose.

4. The single use enhanced CT use high pressure resistant safety intravenous needle of claim 3, wherein: the front end of the tube seat is sleeved with a needle sleeve for protecting the outer needle and the inner needle, and one side of the needle seat is provided with a hand-held part for conveniently pulling out the inner needle.

5. The single use enhanced CT use high pressure resistant safety intravenous needle of claim 3, wherein the hose is connected to the extension tube by an integrally connected threaded fitting.

6. The disposable reinforced CT safety type venous indwelling needle with high pressure resistance according to claim 5, wherein the length of said extension tube is 40-80cm, and is made of high pressure resistant PVC material.