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Thrombus aspiration catheter

A technology for suctioning catheters and thrombus, which is applied in the fields of suctioning equipment, medical science, surgery, etc. It can solve the problems of hard texture, large volume, prolonging operation time, etc., and achieve the effect of improving efficiency

Active Publication Date: 2022-01-28
XINKAINUO MEDICAL TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, thrombus is generally divided into acute fresh thrombus and old thrombus. For old thrombus, it is not only large in size, but also hard in texture. It is generally difficult to directly suck it out with a thrombus suction catheter. The old thrombus is separated first, and then the thrombus suction catheter is used for suction after separation, which not only increases the difficulty of the operation, but also greatly prolongs the operation time of the operation. obviously inappropriate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, a thrombus aspiration catheter includes a catheter adapter, a stress relief tube, a catheter body, and a developing logo. The catheter adapter is connected to the catheter body through a stress relief tube; the catheter body consists of a three-layer structure of an inner tube, a middle layer, and an outer tube The inner tube and the outer tube are made of polyether block amide Pebax and polyurethane PU, and the middle layer is made of 304 stainless steel wire; it is characterized in that: the outer tube is composed of two layers, and the inner tube of the inner tube The chamber is a suction chamber 1, and a liquid passage chamber 2 is formed between the two layers of the outer tube. The catheter adapter has a main channel and a side channel, the main channel is connected with the suction chamber, and the side channel is connected with the liquid passage chamber ; The side wall of the distal end of the outer tube is provided with a liquid hole...

Embodiment 2

[0032] Such as figure 1 As shown, a thrombus aspiration catheter includes a catheter adapter, a stress relief tube, a catheter body, and a developing logo. The catheter adapter is connected to the catheter body through a stress relief tube; the catheter body consists of a three-layer structure of an inner tube, a middle layer, and an outer tube The inner tube and the outer tube are composed of polyether block amide Pebax and nylon PA, and the middle layer is made of nickel-titanium alloy wire; it is characterized in that: the outer tube is composed of a two-layer structure, and the inner tube of the inner tube The chamber is a suction chamber 1, and a liquid passage chamber 2 is formed between the two layers of the outer tube. The catheter adapter has a main channel and a side channel, the main channel is connected with the suction chamber, and the side channel is connected with the liquid passage chamber ; The side wall of the distal end of the outer tube is provided with a l...

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Abstract

The invention provides a thrombus aspiration catheter. The thrombus aspiration catheter comprises a catheter seat, a stress release tube, a catheter body and a developing identifier; when thrombus aspiration is carried out, blood vessels can be blocked, so that broken small thrombus is prevented from flowing to smaller blood vessels at the far end; more importantly, in the aspiration process, thrombus can be crushed and cut through thrombus crushing equipment at the tail end of the catheter; old or hard thrombus can be smoothly sucked out through suction, so that the success rate of an operation is greatly improved, and the risk of the operation is reduced; the invention has great significance in reducing complications and improving the aspiration effect of thrombus.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a thrombus suction catheter for cardiovascular intervention. Background technique [0002] A thrombus is a small piece of blood that forms on the surface of a peeled or repaired vessel in the cardiovascular system. In variable fluid dependence, thrombi consist of insoluble fibrin, deposited platelets, accumulated leukocytes, and trapped erythrocytes. If the thrombus forms a blockage in the blood vessels of the human body and interrupts the blood flow, it is easy to cause myocardial infarction, stroke and other life-threatening diseases. [0003] Currently, thrombolytic therapy is still the mainstream treatment for ischemic stroke, but it has certain limitations, mainly reflected in the short treatment time window and low rate of revascularization. The treatment method of mechanical thrombectomy has significant advantages in the treatment effect. At present, the commonly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22A61M1/00
CPCA61B17/22012A61B2017/22054A61B2017/22079
Inventor 成立萍赵振心朱佳英
Owner XINKAINUO MEDICAL TECH SHANGHAI CO LTD
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