Left atrial appendage occlusion ablation device

By designing an integrated left atrial appendage occlusion and ablation device that combines the anchoring plate and sealing plate, the problem of complex procedures in left atrial appendage occlusion and ablation surgery has been solved. This simplifies the surgical steps, improves the ablation effect, and ensures electrical isolation between the left atrial appendage and the left atrium, as well as thrombosis prevention.

CN115444542BActive Publication Date: 2026-06-12HANGZHOU NUOMAO MEDTECH CO LTD
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Patent Information

Application Number
CN202110790616.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-06-08
Filing Date
2021-07-13
Publication Date
2026-06-12
Estimated Expiration
2041-07-13

AI Technical Summary

Technical Problem

In the existing technology, the one-stop treatment procedure of left atrial appendage occlusion and ablation is complex and difficult. The positioning of the ablation catheter and left atrial appendage occlusion device at the opening of the left atrial appendage is difficult, resulting in long operation time and hindering the improvement of convenience.

Method used

A left atrial appendage occlusion ablation device is designed, comprising an anchoring plate and a sealing plate, both of which are radially expandable support structures. The anchoring plate is anchored inside the left atrial appendage, and the sealing plate seals the entrance of the left atrial appendage. The sealing plate is conductive as a whole to transmit ablation energy or collect tissue physiological signals. The conductive components of the anchoring plate and the sealing plate are combined to achieve integrated ablation and occlusion.

Benefits of technology

It simplifies the one-stop treatment procedure of ablation and closure, reduces the difficulty of the operation, and improves the ablation effect. It can form a complete annular ablation zone at the opening of the left atrial appendage, completely electrically isolating the left atrial appendage from the left atrium and preventing thrombi from entering the left atrium.

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Abstract

The application relates to a left auricle occlusion and ablation device. The left auricle occlusion and ablation device comprises an anchoring disc which is a radially telescopic stent structure, and a sealing disc which is a radially telescopic stent structure and is arranged at the proximal end of the anchoring disc; the sealing disc is made of a conductive material, and the sealing disc as a whole serves as a first conductive part for transmitting ablation energy or collecting tissue physiological signals. The anchoring disc is released in the left auricle and can anchor the tissue inner wall of the left auricle, and the sealing disc is released at the entrance of the left auricle so as to occlude the entrance of the left auricle and occlude thrombus in the interior of the left auricle, thereby effectively preventing the thrombus from entering the left atrium. Meanwhile, the sealing disc is conductive as a whole and transmits ablation energy, and ablation is performed on the left auricle mouth, which is more conducive to forming a complete annular ablation zone at the mouth, thereby facilitating complete electrical isolation of the left auricle from the left atrium at the left auricle mouth, and greatly improving the ablation effect.
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