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A thrombectomy device

A guiding device and metal cap technology, which is applied in the field of medical devices, can solve the problems of inability to take out thrombus, thrombus falling off, secondary embolism, etc., and achieve the effect of shrinking volume, smooth pipeline and avoiding falling off

Active Publication Date: 2020-08-21
THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects in the prior art, the present invention proposes a thrombus removal device to solve the problem that the thrombus cannot be completely removed by mechanically removing the thrombus in the process of removing the thrombus, and the thrombus falls off and easily leads to secondary embolism.

Method used

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  • A thrombectomy device
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Embodiment Construction

[0021] The following is further described in detail through specific implementation methods:

[0022] The reference signs in the drawings of the description include: guiding device 1, guiding piece 11, set 12, microcatheter 2, thrombus retrieval bracket 3, metal wire 31, metal cap 32, mounting hole 321, through hole 322, metal parts 33. Torsion spring 331, metal sleeve 332, developing wire 34, metal tube 35, mesh 36, thrombus 4, blood vessel 5.

[0023] like figure 1 , figure 2 and image 3 As shown, a thrombectomy device includes a guide device 1 , a microcatheter 2 and a thrombectomy support 3 , the microcatheter 2 is used to transport the thrombectomy support 3 , and the guide device 1 is used to push and pull the thrombus retrieval support 3 . The thrombectomy bracket 3 includes metal wires 31 and metal caps 32. In this embodiment, there are eight metal wires 31, and both the metal wires 31 and the metal caps 32 are made of shape memory alloy. like figure 1 and ima...

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Abstract

The invention relates to the technical field of medical instruments, in particular to a thrombus removal device. The device includes a guide device, a microcatheter and a thrombus removal stent. The microcatheter is used for transporting the thrombus removal stent. The guide device is used for pushing and pulling the thrombus removal stent. The thrombus removal stent includes several metal wires and a metal cap. The several metal wires are intertwined to form a net structure, the inside of which is a cavity and the surface of which is cylindrical. The net structure is attached to the inner wall of blood vessel after being propped open. One end of the net structure is an aggregated end formed by gathering of several metal wires, and the other end of the net structure is an open end formed by dispersing of several metal wires. The aggregated end is fixedly connected to the guide device. The metal cap is an umbrella-shaped structure, and the metal cap is fixedly connected with the open end. An open end of the metal cap surrounds the net structure. The invention aims to solve the problem that the thrombus cannot be completely removed by mechanical removal of the thrombus during the process of thrombus removal for a patient and the problem that the falling of thrombus easily leads to secondary embolism.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a thrombus removal device. Background technique [0002] Intravascular thrombosis is a common clinical and frequently-occurring disease, and intracranial thrombosis is the most important. Intracranial thrombosis has the characteristics of high incidence, high disability rate, high mortality rate and high recurrence rate. Major diseases that kill and disable people. With the continuous increase of the elderly population and the improvement of living standards, the incidence of intracranial thrombosis is increasing. [0003] Currently, conventional methods for the treatment of intracranial intravascular thrombosis include two categories: intravascular thrombolysis and mechanical thrombectomy. Intravascular thrombolysis means that the catheter injects a thrombolytic agent into the vicinity of the lesion in the blood vessel where the lesion is located, and instantly for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/221
CPCA61B17/22031A61B17/221A61B2017/00778A61B2017/00867A61B2017/00902A61B2017/22035A61B2017/22038
Inventor 周振华
Owner THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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