Catheter shaft for an implant delivery device

The use of a docking device implanted within the native valve annulus to securely anchor artificial heart valves addresses the challenges of sizing and anchoring, enhancing the fit and reducing leakage in diverse valve anatomies.

JP2025519832APending Publication Date: 2025-06-26EDWARDS LIFESCIENCES CORP
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Patent Information

Application Number
JP2024574778
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-06-20
Filing Date
2023-06-19
Publication Date
2025-06-26

AI Technical Summary

Technical Problem

Existing technologies face challenges in appropriately sizing and shaping artificial heart valves for diverse native valve anatomies, and in securely anchoring these valves to ensure proper function and prevent paravalvular leakage.

Method used

A docking device is implanted within the native valve annulus, configured to receive and securely anchor an artificial heart valve. The docking device is delivered using a transcatheter delivery device, which includes a pusher shaft with a polymer tip to deploy the docking device in a coiled configuration within the native valve annulus, providing a stable anchoring site for the artificial valve.

Benefits of technology

The docking device creates a stable and circular anchoring site, allowing the artificial heart valve to be expanded and implanted securely, reducing the risk of paravalvular leakage and improving the fit of the artificial valve to the native valve anatomy.

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Abstract

A catheter shaft that can be used in a delivery device for an artificial implant is disclosed. As an example, the catheter shaft can include a tube having a distal end portion with at least one axially extending slot, the slot extending proximally into the tube from the distal end of the tube and radially through the thickness of the tube. The catheter shaft further can include a polymer layer comprising a jacket portion disposed around the tube, a tip portion extending distally of the jacket portion and the tube, and a channel portion disposed within the slot, and an inner liner disposed on the inner surface of the tube and the inner surface of the tip portion, the material of the polymer layer bonding to the inner liner.
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