Catching device

A capture system and delivery system technology, applied in the field of medical devices, can solve problems such as re-embolization, easy to fall off distal blood vessels, etc., and achieve the effect of reducing workload, simplifying the operation process, and saving valuable treatment time

Inactive Publication Date: 2016-04-06
SHANGHAI ACHIEVA MEDICAL SUZHOU CO LTD
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  • Abstract
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Problems solved by technology

[0021] In order to solve the above-mentioned technical problems, the present invention provides an improved thrombus capture device, which solves the problem of repeated thrombus removal in the prior art and the easy fall-off of blood vessel wall plaque and broken thrombus, which causes the distal blood vessel to relapse. The problem of embolism has the following characteristics: easy operation, accurate and rel

Method used

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Embodiment Construction

[0050] Refer below Figure 1-Figure 13 Embodiments of the present invention are described in detail.

[0051] Figure 1~Figure 8 The structure of the device of the present invention has been shown, and relevant descriptions are as follows:

[0052] like figure 1 The capture device shown includes a thrombectomy system, a delivery system and a guiding system. The thrombus retrieval system is a bag-like structure with a distal end closed, and the bag-like structure is composed of a skeleton structure and a membrane structure; the skeleton structure consists of Composed of metal materials or polymer materials; the membrane structure is composed of polymer materials with microporous structures; the bag-like structure shrinks into the conveying system under external force; the conveying system transports the capture system reach the target blood vessel location. The delivery system includes a long and thin delivery guide wire with a lubricating layer on the delivery guide wire; ...

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Abstract

The invention relates to a medical apparatus, in particular to a thrombus extraction device for mechanical elimination of thrombus blocked in intracranial vessels of patients when acute ischemic stroke attacks the patients so as to recover blood flow. The catching device is characterized in that a catching system is of a bagged structure with the remote end sealed. The bagged structure is composed of a framework structure and a membrane structure. The framework structure is made of metal or high polymer materials, the membrane structure is made of high polymer materials, and a cellular structure is formed on the membrane structure. The bagged structure is retracted into a conveying system under external acting force, and the conveying system conveys the catching system to the target blood vessel position.

Description

technical field [0001] The present invention relates to a medical device, and more specifically, the present invention relates to a device for recovering blood by mechanically eliminating the thrombus blocked in the patient's intracranial blood vessel when the patient suffers from acute ischemic stroke. [0002] Thrombectomy device for flow purposes. Background technique [0003] In my country, acute stroke is the third leading cause of death and the first leading cause of disability. According to statistics, there are about 2 million new cases of stroke in the country every year, about 1.5 million people die of stroke every year, and about 6.5 million stroke survivors. The annual direct cost of treating stroke in the country exceeds 20 billion yuan, of which Ischemic stroke (ischemicstroke) accounts for about 85% of all patients. In the United States, there are 250,000 to 500,000 new stroke patients every year, and more than 150,000 of them die. According to the statistic...

Claims

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Application Information

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IPC IPC(8): A61B17/22
CPCA61B17/22032A61B2017/22034A61B2017/22094
Inventor 黄飞飞叶萍刘建民
Owner SHANGHAI ACHIEVA MEDICAL SUZHOU CO LTD
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