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Net-cage electrode catheter

A technology of electrode catheter and mesh basket, which is applied in the direction of catheter, electrode, medical science, etc., can solve the problems of low success rate, time-consuming and high price of atrial fibrillation ablation, and achieve rapid mapping and linear ablation treatment, adequate endocardial ablation The effect of electrode contact

Active Publication Date: 2007-04-18
APT MEDICAL INC
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AI Technical Summary

Problems solved by technology

However, even in some well-known electrophysiological centers in Europe and America, the success rate of atrial fibrillation ablation is still low, and the recurrence rate is as high as 20%-30%
[0006] The reason is that the existing ablation catheters can only map ablation point by point due to their structural limitations, but cannot guarantee the continuity of the ablation line, and it is time-consuming
In addition, the cost of this treatment is high

Method used

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Embodiment Construction

[0020] The present invention relates to a wire basket type electrode catheter. The wire basket part can be opened under the control of a handle, so that the electric base on the wire basket can fully and firmly contact the tissue of the pulmonary vein ostium to form scars. The following describes the invention in conjunction with the accompanying drawings The basket-type lead is described in detail.

[0021] Referring to Fig. 1, the basket-type electrode catheter in the present invention includes a polymer material catheter body 1, a mesh basket 2 at one end of the catheter body, a handle at the other end of the catheter body, and a soft tip 3 at one end of the mesh basket, passing through the catheter body 1 Copper conductor 4, metal stay wire 5 and control steel wire 6, and connection handle 7.

[0022] The catheter body 1 has a bending portion 10, and the catheter body can be made of one or more than one material, such as polyethylene, polyurethane, polyester, etc., so that...

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Abstract

A net basket type electrode catheter for the stable contact between electrode and endocardium has a handle unit and a net basket unit consisting of a near-end annular coupler, a far-end annular coupler with soft head, and multiple metallic wires between said both coupler and with coated insulating layer. Said metallic wires are electrically connected to the electrode interface on handle unit. The metallic electrodes are at the middle of said metallic wires. When a push rod is moving forward, said metallic wires are curved to form a spherical body.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a novel mesh basket mapping / linear ablation electrode catheter. Background technique [0002] The diagnostic mapping catheter is a key component for recording the electrophysiological signals of various parts of the heart, electrically stimulating the heart, and performing electrophysiological mapping of heart diseases. Radiofrequency Ablation Catheter Leads are used for electrophysiological mapping of cardiac arrhythmias, temporary cardiac pacing, and radiofrequency ablation. This method of treatment not only avoids the pain of chest surgery, but also cures the disease without leaving any serious complications. It has been widely used in clinical practice at home and abroad. [0003] At present, the lead catheters used clinically in China are mostly foreign catheter companies, mainly American Johnson & Johnson, St. Jude / IBI, and Bard. Only Shenzhen Huitai Company produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61B5/0408A61B18/14A61N1/04
Inventor 吴书林成正辉韩永贵郭成军
Owner APT MEDICAL INC
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