CN215841091U

CN215841091U - Oversleeve radiography catheter

Info

Publication number: CN215841091U
Application number: CN202021102992.6U
Authority: CN
Inventors: 卢长青; 卢淑欣
Original assignee: Henan University of Traditional Chinese Medicine HUTCM
Current assignee: Henan University of Traditional Chinese Medicine HUTCM
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2022-02-18
Anticipated expiration: 2030-06-16

Abstract

A sleeve contrast catheter comprises a catheter body, wherein the catheter body is a hollow round tube body, the diameter of the catheter body is 5-6F, the length of the catheter body is 1.05-1.3m, one end of the catheter body is provided with a luer connector, the other end of the catheter body is in a hook shape, a sleeve is sleeved on the hook, the sleeve is a hollow film body, the diameter of the sleeve is the same as the outer diameter of the catheter body, the length of the sleeve is 1-3cm, and two radiopaque marker bands are symmetrically arranged on the outer wall of the sleeve along the length direction.

Description

Oversleeve radiography catheter

Technical Field

The utility model belongs to the field of medical instruments, and particularly relates to an oversleeve radiography catheter.

Background

Coronary angiography is a common technical means for diagnosing coronary atherosclerotic heart disease (coronary heart disease), is a safe and reliable invasive diagnosis technology, is widely applied to clinic at present, and is considered as the 'gold standard' for diagnosing coronary heart disease. The existing radial artery coronary artery angiography catheter needs to be placed at a coronary artery opening in the using process, if the force for pushing the contrast agent is too small, the quality of an angiography image is poor, the result judgment is influenced, if the force is too large, the catheter is often popped up due to the counterforce or a large amount of contrast agent flows backwards, particularly, when the force is not coaxial, the dosage of the contrast agent and the related side effects of the contrast agent are increased, due to the structural defects, the head hardness of the catheter is high, the blood vessel is easily damaged, and serious complications are caused, so that the structure and the design of the existing catheter need to be further improved and innovated, but no public report is found so far.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, the present invention provides an oversleeve angiography catheter, which can effectively solve the problems of poor quality of angiography images and easy damage to blood vessels.

In order to achieve the purpose, the technical scheme of the utility model is that the oversleeve radiography catheter comprises a catheter body, wherein the catheter body is a hollow round tube body, the diameter of the catheter body is 5-6F, the length of the catheter body is 1.05-1.3m, one end of the catheter body is provided with a luer connector, the other end of the catheter body is in a hook shape, a oversleeve is sleeved on the hook, the oversleeve is a hollow thin film body, the diameter of the oversleeve is the same as the outer diameter of the catheter body, the length of the oversleeve is 1-3cm, and two radiopaque marker bands are symmetrically arranged on the outer wall of the oversleeve along the length direction.

The utility model has simple structure, novel and unique design, good controllability, deep coronary artery and good contrast image quality, reduces the damage to blood vessels because the head is provided with the soft oversleeve, and has great social and economic benefits.

Drawings

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a schematic view of the structure of the present invention before it is opened.

Detailed Description

The following detailed description of the embodiments of the utility model is provided in connection with the accompanying drawings and the detailed description.

The oversleeve radiography catheter comprises a catheter body, wherein the catheter body 1 is a hollow round tube body, the diameter of the catheter body 1 is 5-6F, the length of the catheter body is 1.05-1.3m, one end of the catheter body 1 is provided with a luer connector 2, the other end of the catheter body is in a hook shape, a oversleeve 3 is sleeved on the hook, the oversleeve 3 is a hollow film body, the diameter of the oversleeve 3 is the same as the outer diameter of the catheter body 1, the length of the oversleeve 3 is 1-3cm, and two radiopaque mark belts 4 are symmetrically arranged on the outer wall of the oversleeve 3 along the length direction.

In order to ensure better implementation effect, the catheter 1 is a multifunctional angiography catheter, a Judkins left and right coronary angiography catheter or an Amplatz coronary angiography catheter.

The oversleeve 3 is a hollow film body made of nylon, polyethylene or polyurethane.

The mark belt 4 is a radiopaque long mark belt made of 18K gold or platinum-iridium alloy.

The luer fitting 2 (known and commercially available) is connected to an external contrast bolus device.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto in any way, and those skilled in the art can make modifications or equivalent variations to the above-mentioned embodiments without departing from the scope of the present invention.

When the utility model is implemented specifically, before the cuff radiography catheter is unsealed for use, the outlet end of the cuff is plugged into the catheter, so that the problem that the use is influenced because the cuff is directly clamped between the catheter and a blood vessel opening is avoided, when radial artery puncture or femoral artery puncture is carried out in the operation process, firstly, a 6F sheath tube (known and sold products) is placed into the head of an artery, the length of the sheath tube is 20cm, a 0.035 ' guide wire (known and sold products) is placed into the catheter 1 to play a guiding role, the 0.035 ' guide wire and the utility model are sent into the root part of an ascending aorta along the inside the 6F sheath tube, after the cuff 3 reaches the root part of the ascending aorta, 0.035 ' is extracted, a luer connector at one end of the cuff radiography catheter is connected with a contrast agent injection device, under DSA fluoroscopy, the left coronary artery angiography catheter is controlled to enter a left coronary artery through the radial artery angiography catheter, contrast is carried out, and when contrast agent is injected, the cuff inserted into the catheter is flushed into the coronary artery by the impact force of the contrast medium, so that the overflow of the contrast medium is reduced, the contrast medium is saved, the developing quality is high, the right coronary artery is accessed into the right coronary artery through the radial coronary artery angiography catheter for right coronary artery angiography, and during operation, the position of the cuff can be clearly seen due to the fact that the mark is provided with radiopacity, and the operation difficulty is reduced.

The utility model has simple structure and scientific and reasonable design, the oversleeve part can easily enter coronary artery during coronary angiography, the utility model has good controllability, can go deep into the coronary artery to achieve the best use effect, improves the working efficiency, can obtain high-quality images only by a small amount of contrast agent, reduces the use amount of the contrast agent by more than 40 percent, saves the operation cost, has soft structure, can float into the coronary artery along with blood flow, is easier to enter, reduces the damage to blood vessels, reduces the operation difficulty and operation complications, and has great social and economic benefits.

Claims

1. A oversleeve radiography catheter comprises a catheter body and is characterized in that the catheter body (1) is a hollow round tube body, the diameter of the catheter body (1) is 5-6F, the length of the catheter body is 1.05-1.3m, one end of the catheter body (1) is provided with a luer connector (2), the other end of the catheter body is in a hook shape, a oversleeve (3) is sleeved on the hook, the oversleeve (3) is a hollow film body, the diameter of the oversleeve is the same as the outer diameter of the catheter body (1), the length of the oversleeve (3) is 1-3cm, and two radiopaque marker bands (4) are symmetrically arranged on the outer wall of the oversleeve (3) along the length direction.

2. The oversleeve angiographic catheter according to claim 1, wherein the catheter body (1) is a multifunctional angiographic catheter, a Judkins left and right coronary angiographic catheter or an Amplatz coronary angiographic catheter.

3. The oversleeve angiography catheter as claimed in claim 1, wherein the oversleeve (3) is a hollow film body made of nylon, polyethylene or polyurethane.

4. A oversleeve contrast catheter according to claim 1, wherein the marker band (4) is a radiopaque elongate marker band made of 18K gold or platinum iridium alloy.

5. A cuff contrast catheter as claimed in claim 1, characterised in that the luer fitting (2) is connected to an external contrast agent infusion device.