Thrombus aspiration catheter with telescopic clot crushing assembly

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

Active Publication Date: 2019-10-11
THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH
View PDF7 Cites 7 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thrombus aspiration catheter with telescopic clot crushing assembly
  • Thrombus aspiration catheter with telescopic clot crushing assembly
  • Thrombus aspiration catheter with telescopic clot crushing assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]As shown in the figure: a thrombus aspiration catheter with a telescopic thrombus block crushing component, including a suction tube 1, a multi-channel tube base 2 and a crushing component 3, the head end of the suction tube 1 can be placed in the patient's artery , the multi-channel socket 2 is connected to the tail of the suction tube 1, and is used for injecting medicine into the suction tube 1, aspirating thrombus, and crushing. broken. The suction pipe 1 is composed of an inner pipe 1-1 and an outer pipe 1-2. The head end and the tail end of the inner pipe 1-1 and the outer pipe 1-2 are closed by a ring plate, and the inner pipe 1-1 and the outer pipe An annular drug injection channel is formed between 1-2, and the side wall of the outer tube 1-2 close to the head end is provided with a drug outlet hole 1-3, and the thrombolytic drug in the annular drug injection channel enters the patient's artery through the drug outlet hole 1-3 Inside. The multi-channel socket ...

Embodiment 2

[0035] As shown in the figure: a thrombus aspiration catheter with a telescopic thrombus block breaking assembly, its basic structure is the same as that of Example 1, the difference is that the head end of the suction tube 1 is a beveled structure, and the breaking assembly 3 also includes a top cover 3-3 arranged at the head end of the rotating shaft 3-2. The suction tube 1 of the beveled structure has a larger suction port for thrombus, but when the spikes formed by the beveled structure travel in the blood vessel, the spikes The end of the rotating shaft is easy to scratch the blood vessel wall. In order to solve this problem, a top cover is set on the top of the rotating shaft, which can play a protective role in the process of advancing.

Embodiment 3

[0037] As shown in the figure: a thrombus aspiration catheter with a telescopic thrombus block breaking assembly, its basic structure is the same as that of embodiment 1, the difference is that the end of the outer tube 1-2 is provided with a plurality of circularly distributed The drug outlet hole 1-3 is different from embodiment 1. The drug outlet hole 1-3 of the present embodiment is arranged on the end face of the nozzle, and is arranged towards the direction of suction, which is beneficial to the direct access of the drug to the clogged place of the thrombus. In order to prevent the injected drug from It is sucked directly into the suction tube, and the suction operation is stopped during the drug injection.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a thrombus aspiration catheter with a telescopic clot crushing assembly. The catheter comprises a suction tube, a multi-channel tube base and a crushing assembly, and an annular medicine injection channel is formed between an inner tube and an outer tube of the suction tube, and the multi-channel tube base is composed of a main tube body, a medicine injection branch pipe and a suction branch pipe, the crushing assembly comprises a control channel tube, a rotating shaft, a control rod and a crushing unit, the rotating shaft penetrates through the control channel tube, and the crushing unit comprises a first sleeve, a second sleeve and a crushing rod, the crushing rod is composed of two rod bodies with two head ends hinged together, the tail ends of the two rod bodies are hinged to the first sleeve and the second sleeve respectively, the first sleeve fixedly sleeves the rotating shaft, and the second sleeve slidingly sleeves the rotating shaft. When the thrombuswhich is large in volume and high in viscosity exists, the crushing assembly is unfolded, by means of the crushing assembly, the large block of thrombus can be crushed, the large block of the thrombuscan smoothly enter the suction tube conveniently, and meanwhile crushing and oil suction can be conducted; the working efficiency is high.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a thrombus suction catheter with a telescoping thrombus block crushing component. Background technique [0002] Acute myocardial infarction (AMI) is a sharp reduction or interruption of coronary blood supply on the basis of coronary artery disease, causing severe and persistent acute ischemia of the corresponding myocardium, leading to myocardial necrosis. The incidence of AMI is dangerous, with a high mortality and disability rate. Since atherosclerosis is the pathological basis of acute cardiovascular and cerebrovascular events, the main cause of acute cardiovascular events is local atherosclerotic plaque rupture and thrombus formation, and thrombus formation depends on the susceptibility of atherosclerotic plaques. Destructive, vulnerable plaques are prone to plaque rupture and thrombosis, leading to the occurrence of acute coronary syndrome. [0003] Thrombus aspirat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap