Pulse ablation catheter and ablation system

CN224331018UActive Publication Date: 2026-06-09艾科脉医疗器械(绍兴)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
艾科脉医疗器械(绍兴)有限公司
Filing Date
2025-04-15
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing pulse ablation catheters have an insufficient number of metal electrodes and poor support, resulting in a small ablation area, poor electrode adhesion and uniformity, which affects treatment efficiency and stability.

Method used

Design a catheter assembly including an outer tube and an inner tube. The inner tube is movable and has multiple spokes and a first electrode. The distal end of the outer tube has a specific projection surface. The overlapping area of ​​the projection surfaces of adjacent spokes is between 5% and 40%. The inner and outer tubes can switch states to adapt to different ablation locations. The electrodes are arranged in a matrix.

Benefits of technology

It improves the coverage area of ​​the ablation zone and the uniformity of the electrodes, reduces the number of treatments, improves treatment efficacy and safety, and reduces surgical risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a pulse ablation catheter and an ablation system, wherein the pulse ablation catheter comprises a handle and a catheter assembly; the catheter assembly comprises an outer tube, an inner tube and a spline; the spline comprises a plurality of spokes and a first electrode; the distal end of the outer tube has a plane A perpendicular to the axis of the outer tube; when in a third state, each spoke has a projection B on the outer tube outside the plane A, the projections B surround to form a projection plane C; the projection plane C of any two adjacent spokes has a coincident plane D, and the area ratio of the coincident plane D to the projection plane C of any one of the two adjacent spokes is greater than or equal to 5% and less than or equal to 40%. The pulse ablation catheter of the application can be switched among three states to be respectively suitable for pulse ablation in a pulmonary vein and at a pulmonary vein orifice; and more first electrodes can be arranged on the small and compact spline to enable more accurate ablation treatment on specific affected parts, thereby reducing the treatment risk and improving the treatment effect.
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