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A thrombus aspiration catheter with a telescopic thrombus fragment breaking component

A technique for suctioning catheters and thrombus blocks, which is applied in catheters, medical science, surgery, etc., can solve the problems of cumbersome operation, large suction volume, low suction efficiency, etc., to avoid damage to blood vessels, high safety factor, and work efficiency. high effect

Active Publication Date: 2021-06-08
THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technical solution solves the problem of aspiration of large-volume and highly viscous thrombus, there are still some deficiencies.
First of all, the head end of the suction tube is an oblique cut opening, although it is convenient for the puncture of the suction tube, but there is also a risk of operation error and the head end punctures the blood vessel
Secondly, the operation of dispersing the thrombus and the suction operation cannot be carried out at the same time. The operation of dispersing the thrombus cannot be performed during suction, and the operation of dispersing the thrombus cannot be performed during suction. Frequent replacement of parts is required between the two operations. Complicated operation and low suction efficiency

Method used

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  • A thrombus aspiration catheter with a telescopic thrombus fragment breaking component
  • A thrombus aspiration catheter with a telescopic thrombus fragment breaking component
  • A thrombus aspiration catheter with a telescopic thrombus fragment breaking component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]As shown in the figure: a thrombus drawing catheter having a telescopic thrombus crush assembly, including the suction tube 1, the multi-channel tube 2, and the broken assembly 3, the head end of the suction tube 1 can be placed in the artery of the patient The multi-channel holder 2 is connected to the tail of the suction tube 1, and is used to perform the operation of injection, thrombosis and crushing in the suction tube 1, and the broken assembly 3 is used to make the volume high viscous thrombus. broken. The suction tube 1 is composed of the inner tube 1-1 and the outer tube 1-2, and the head and tail ends of the inner tube 1-1 and the outer tube 1-2 are closed through the loopboard, and the inner tube 1-1 and the outer tube. 1-2 is formed between the annular injection channel, and the outer tube 1-2 is provided with a pharmaceutical hole 1-3 on the side wall of the head end, and the thrombolytic drug in the annular injection passage is entered into the patient artery b...

Embodiment 2

[0035] As shown in the figure: a thrombus drawing catheter having a telescopic thrombus crush assembly, the basic structure is the same as in Example 1, and the distinction is that the head end of the suction tube 1 is a slope structure, a broken assembly 3 also includes a top cover 3-3 provided at the head end of the rotating shaft 3-2, the suction tube 1 of the slope structure has a large thrombus inlet, but the spike formed by the slope structure is in the blood vessel, its spike The end is easy to scratch the blood vessel wall, in order to solve this problem, the top cover is provided at the top of the shaft, and the top cover can be protected during travel.

Embodiment 3

[0037] As shown in the figure: a thrombus drawing conduit having a telescopic thrombus crush assembly, the basic structure is the same as in Example 1, and the end portion of the outer tube 1-2 is provided with a plurality of annular distributions. Different pharmaceutical holes 1-3, unlike Example 1, the pharmaceutical holes 1-3 of the present embodiment are disposed on the end face of the tube, toward the direction of suction, facilitating the drug direct thrombus closure, in order to prevent injection drugs During the suction suction pipe, the suction operation is stopped during the drug injection.

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Abstract

The invention relates to a thrombus aspiration catheter with a telescopic thrombus fragment crushing component, which includes a suction tube, a multi-channel socket and a crushing component. An annular drug injection channel is formed between the inner tube and the outer tube of the suction tube, and the multi-channel The pipe seat is composed of a main body, an injection branch pipe and a suction branch pipe. The crushing assembly includes a control channel pipe, a rotating shaft, a control rod and a crushing unit. As well as the breaking rod, the breaking rod is composed of two rods whose head ends are hinged together, the tail ends of the two rods are respectively hinged on the first sleeve and the second sleeve, the first sleeve is fixedly sleeved on the shaft, and the second The two sleeves are slidingly sleeved on the rotating shaft. When a thrombus with large volume and high viscosity is encountered, the crushing component can be unfolded, and the large thrombus can be broken through the crushing component so that it can enter the suction tube smoothly. The crushing operation and suction operation can be performed at the same time, and the work efficiency is high. .

Description

Technical field [0001] The present invention relates to the field of medical devices, and more particularly to a thrombotic drawing conduit having a telescopic thrombus crush assembly. Background technique [0002] Acute myocardial infarction (AMI) is based on coronary artery disease, and coronary blood supply has decreased dramatically or interrupted, so that the corresponding myocardium is serious and lasting acute ischemia leads to myocardial necrosis, and AMI is in danger. The residue is high. Since atherosclerosis is the pathological foundation of acute cardiovascular and cerebrovascular events, the main cause of acute cardiovascular event is the rupture of local atherosclerosis and thrombosis, and thrombus formation depends on atherosclerotic plaques. Dueism, it is prone to spatum rupture and thrombosis, resulting in acute coronary syndrome. [0003] Thrombus suction is a new method for use in the clinic in recent years. The purpose is to quickly extract the thrombus of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/14A61B17/22
CPCA61B17/22A61B2017/22079A61M25/0023A61M25/007A61M2025/0063
Inventor 曲红培陈瑞晓
Owner THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH
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