Safety-improved left auricle ablation plugging device

A blocking device and safety technology, applied in parts of surgical instruments, medical science, heating surgical instruments, etc.

Pending Publication Date: 2021-07-16
HANGZHOU NUOMAO MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a safety-improved left atrial appendage ablation and closure device, which can not only improve the problem of cooling liquid perfusion hole blockage, but also improve the ablation efficiency of the inner wall of the left atrial appendage

Method used

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  • Safety-improved left auricle ablation plugging device
  • Safety-improved left auricle ablation plugging device
  • Safety-improved left auricle ablation plugging device

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.

[0023] In the description of the present invention, the "proximal end" refers to the end relatively close to the operator during the operation, and the "distal end" refers to the end relatively far away from the operator during the operation. The axial direction refers to the direction of the central axis of the device, and the radial direction refers to the direction perpendicular to the central axis. This definition is only for the convenience o...

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Abstract

The invention provides a safety-improved left auricle ablation plugging device. The device comprises a hollow supporting framework, an ablation part and a cooling liquid filling mechanism, the ablation part is attached to the inner wall of a left auricle, and the ablation part is electrically connected with a radio frequency source to conduct annular ablation on the inner wall of the left auricle. The cooling liquid filling mechanism comprises a liquid conveying pipe inserted into an inner cavity of the supporting framework, spraying holes are formed in the pipe wall of the liquid conveying pipe, and the liquid conveying pipe is used for conveying and spraying cooling liquid to the position close to the ablation part, so that the ablation area of the left auricle is evenly cooled, eschar is prevented, and the ablation depth can also be increased.

Description

technical field [0001] The present invention relates to the technical field of interventional medical devices, and relates to a safety-improved left atrial appendage ablation and occlusion device. The device uses percutaneous puncture to deliver it to the left atrial appendage of the heart through a delivery catheter, so as to treat the inner wall of the left atrial appendage. Blockage ablation. Background technique [0002] Atrial fibrillation (abbreviated as atrial fibrillation) is the most common sustained arrhythmia, and with age, the incidence of atrial fibrillation continues to increase, reaching 10% in people over 75 years old. During atrial fibrillation, the frequency of atrial excitement reaches 300-600 beats / min, and the heartbeat frequency is often fast and irregular, sometimes up to 100-160 beats / min. Effective retraction function. The prevalence of atrial fibrillation is also closely related to diseases such as coronary heart disease, hypertension and heart fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12A61B18/14
CPCA61B17/12122A61B17/12145A61B17/1215A61B18/1402A61B2017/1205A61B2018/00029A61B2018/00351
Inventor 王永胜刘成王坤李建民
Owner HANGZHOU NUOMAO MEDTECH CO LTD
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