Detachable ablation tip for left atrial appendage closure devices
The detachable ablation catheter with an expandable frame and biocompatible cover ensures a secure seal within the LAA, addressing the strength issues of existing devices and preventing emboli reentry, while enabling effective tissue ablation and occlusion.
JP7789957B2Active Publication Date: 2025-12-22BOSTON SCIENTIFIC SCIMED INC
Patent Information
- Application Number
- JP2024565056
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-05-06
- Filing Date
- 2023-04-19
- Publication Date
- 2025-12-22
- Estimated Expiration
- 2043-04-19
AI Technical Summary
Technical Problem
Existing occlusion devices for the left atrial appendage lack sufficient circumferential and radial strength to resist deforming forces, compromising the seal with the LAA wall and allowing material to reenter the bloodstream.
Method used
A detachable ablation catheter with an expandable frame that can be maneuvered between focal and wide configurations, featuring a connector assembly and deployment mechanism to ensure a secure seal within the LAA, combined with a biocompatible cover and ablation energy delivery.
Benefits of technology
The system provides a robust seal within the LAA, preventing emboli or thrombi from returning to the bloodstream, while allowing for effective tissue ablation and occlusion.
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Smart Images
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Abstract
The present disclosure generally relates to devices, systems, and methods for ablation and occlusion of a body lumen or cavity, including implementations for occluding the left atrial appendage of the heart. An exemplary assembly includes a connector assembly having a connector assembly proximal end and a connector assembly distal end, the connector assembly proximal end and the connector assembly distal end being opposite ends of the connector assembly, and an expandable frame removably disposed on the connector assembly distal end, the expandable frame having a plurality of deployed positions including a first deployed position in which the expandable frame is in a focal configuration and a second deployed position in which the expandable frame is in a wide configuration, the connector assembly being operably connected to the expandable frame and configured to enable movement of the expandable frame between the plurality of deployed positions.
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Citation Information
Patent Citations
Left atrial appendage occluder delivery device incorporating ablation functionality
EP3970634A1
Wire centering correction device
JP2017502788A
Medical device for modification of left atrial appendage and related system and method
JP2018134410A
Devices, systems, and methods for treating a tissue of the heart
US20220087741A1
catheter
WO2020225776A1