Prosthetic Cardiac Valve Anchoring for Percutaneous Implantation
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Solution Overview
Problem
Existing transcatheter procedures for heart valve replacement, particularly for mitral and tricuspid valves, face challenges due to anatomical complexities and patient variability, limiting their adoption and effectiveness compared to surgical methods.
Innovation Solution
A method and system for deploying a prosthetic heart valve using a delivery device with an anchor and expandable frame structure, allowing for percutaneous implantation by advancing the anchor through a native valve, rotating it around structures, and expanding the frame within the valve to secure it, accommodating various patient anatomies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If surgical valve replacement is used, then reliability of valve replacement is improved, but invasiveness of procedure increases
Solution Approach 1:
The prosthetic valve is nested within a delivery catheter system, allowing the valve to be delivered through a percutaneous approach while maintaining the structural integrity and reliability of the valve components. The valve is compressed within the catheter and then expanded at the target site, combining the reliability of surgical-grade valves with the minimally invasive delivery method.
2Object-affected harmful factors
If existing transcatheter procedures are used, then invasiveness of procedure is reduced, but adaptability to different patient anatomies worsens
Solution Approach 1:
The delivery system incorporates adjustable features that allow customization to local anatomical variations. The catheter system can be adapted to different patient anatomies through adjustable delivery mechanisms and configurable valve positioning, enabling the same device to accommodate varying anatomical conditions while maintaining minimally invasive access.
Solution Approach 2:
The delivery system employs dynamic, adjustable components that can be modified during the procedure to match different patient anatomies. The system allows for real-time adjustments in valve positioning, expansion timing, and delivery angle, providing versatility across different anatomical presentations while maintaining the benefits of percutaneous access.
3Object-affected harmful factors
If existing transcatheter procedures are used, then invasiveness of procedure is reduced, but procedure time increases
Solution Approach 1:
The valve is pre-assembled and pre-positioned within the delivery catheter system before the procedure begins. The delivery system is prepared in advance with all necessary components in place, allowing for rapid deployment at the target site without requiring complex assembly steps during the procedure, thereby reducing overall procedure time while maintaining minimally invasive access.
Data Source
AI summary
Systems, devices, and methods for treating a diseased native valve in a patient, the system comprising a compressible and expandable frame structure and an anchor. The anchor comprises a wire having a free end and is configured to be fully advanced from an atrial side of a native valve in a patient into a ventricle of the heart and anchor the frame structure to the native valve when the frame structure is in the expanded configuration adjacent the native valve.