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Low force thrombectomy device

A technology for thrombus and blockage, applied in the field of system for the treatment of vascular blockage, can solve the problems of long recovery period, downstream blockage, fragmentation of thrombotic materials, etc., so as to reduce the fragmentation of blockage and vascular wall damage, and reduce the possibility of blockage Sex, Possibility-Reducing Effects

Active Publication Date: 2015-10-21
THE HONG KONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical thrombectomy devices typically utilize devices that apply high radial force to capture the blockage within the blocked vessel, which scrapes at and damages the vessel wall and, during removal, dislodges the thrombotic material Fragmentation, causing downstream blockage
Surgery is an invasive treatment that entails high risk and requires a long recovery period

Method used

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Embodiment Construction

[0017] The present invention relates to systems and methods for treating blood vessel blockages. The purpose of this description is to illustrate the principles of the invention and should not be considered in a limiting sense. Those skilled in the art will appreciate that the following description is only illustrative of the principles of the invention, which can be applied in various ways to provide many different methods of application.

[0018] Current methods for treating vascular blockages include mechanical thrombectomy devices and drug therapy, which dissolves or breaks down blockages, often in combination with the use of devices or physical structures to open the lumen of blood vessels within the vasculature. Partially or completely restore patency. Common devices used to locally restore blocked blood vessels include balloon angioplasty devices and stents.

[0019] The following description discloses that the invention is particularly suitable for use in angiographi...

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Abstract

The claimed biocompatible device is designed to remove vessel occlusions such as a thrombus, blood clot, or embolus. The claimed devices maybe used to treat occlusions in the brain, in the vasculature, and in tissues and organs. The device is in a form of a wire or wire-like structure which can capture the occlusion with minimal contact force with the vessel wall by an application of electricity, or electrical, chemical, or microwave generated heat to enable capture of the occlusion by the device. The device, compared to conventional mechanical thrombectomy devices, captures the occlusion and reduces occlusion fragmentation without large radial force and vessel wall friction that can damage the vessel wall.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application No. 61 / 728,822, filed November 21, 2012, which is hereby incorporated by reference in its entirety. Background technique [0003] Blockage of blood vessels in arteries and veins is often caused by thrombi, blood clots, or emboli, and can reduce blood perfusion. If blood perfusion falls below a certain level, cells cannot receive enough oxygen. If this situation persists, the cells will die. [0004] The death of brain cells due to blockage of blood vessels is one of the causes of stroke, which can also be fatal if the patient does not receive appropriate drugs or treatment in time. Currently, stroke treatments include thrombolysis, mechanical thrombectomy, and surgery. Thrombolytic techniques are usually only effective in the first three hours after stroke symptoms appear. Mechanical thrombectomy devices typically utilize devices that apply high ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22
CPCA61B17/22A61B17/22031A61B17/221A61B18/06A61B18/08A61B18/14A61B18/1815A61B2018/00083A61B2018/00101A61B2018/00107A61B2018/00404A61B2018/00446A61B2018/1861
Inventor 林铨振庄智恒郭正光袁铭辉秦臻林嘉毅梁家杰高伟伦
Owner THE HONG KONG UNIV OF SCI & TECH
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