Intracranial artery plaque recovery cutting stent

A technology for arterial plaques and plaques, applied in the field of medical devices, can solve the problems of uncontrollable radial cutting force and poor cutting effect, achieve good fixation effect, avoid the movement of the stent body, and avoid the effect of secondary damage

Active Publication Date: 2020-11-24
BEIJING TIANTAN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a stent for recovery and cutting of intracranial artery plaque to solve the technical problems in the prior art that the radial cutting force of the stent for recovery and cutting of intracranial artery plaque cannot be controlled and the cutting effect is not good

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  • Intracranial artery plaque recovery cutting stent
  • Intracranial artery plaque recovery cutting stent
  • Intracranial artery plaque recovery cutting stent

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Embodiment Construction

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them.

[0026] The components of the embodiments of the invention generally described and shown in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0027] Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the...

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Abstract

The invention discloses an intracranial artery plaque recovery cutting stent, and relates to the technical field of medical instruments. The intracranial artery plaque recovery cutting stent comprisesa stent body, an adjusting pull tube, an adjusting pull wire, an expanding and supporting assembly and a plaque cutting assembly, wherein the stent body is internally provided with an adjusting cavity; the front end of the stent body is provided with a mounting step; the adjusting cavity is internally provided with a driving assembly; a connector is arranged at the front end of the adjusting pullwire; the plaque cutting assembly comprises a cutting net, an expanding and supporting air bag and two expanding and supporting nets; two ends of the cutting net are fixedly connected with the adjusting pull tube and a connecting block respectively; the other ends of the two expanding and supporting nets are fixedly connected with the adjusting pull wire; the expanding and supporting air bag is annular and is mounted in the middle of the adjusting pull wire; and the expanding and supporting air bag is located between the two expanding and supporting nets. Radial cutting force of the cutting net on thrombus plaques is guaranteed and control is facilitated, so that the thrombus plaque cleaning effect is improved; and the stent body can be effectively fixed through the expanding and supporting assembly, so that secondary injury to a patient is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a stent for recovery and cutting of intracranial artery plaque. Background technique [0002] Intracranial artery plaque recovery and cutting stent is a common medical device for the treatment of intracranial thrombosis, mainly through the elastic cutting mesh to cut and recover the thrombus plate. [0003] Chinese Patent No. CN109350180A discloses a stent-like thrombus remover, a stent body; the stent body includes a distal structure, a middle structure, and a proximal structure; the distal structure, the middle structure, and the proximal structure are sequentially connected together; the distal The structure is formed as a first cage, and the circumference of the first cage includes a plurality of first meshes; the distal structure is used to pass through the thrombus and remain on the outside of the thrombus; the diameter of the distal structure is larger than that of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82A61B17/3207
CPCA61F2/82A61B17/32075
Inventor 邓一鸣缪中荣高峰陈端端
Owner BEIJING TIANTAN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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