Mitral Annular Platform for Stable Prosthetic Valve Anchoring
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Solution Overview
Problem
Current percutaneous mitral valve replacement technologies face challenges in accurately addressing the dimensions and geometry of the mitral valve, making it difficult to deploy devices that effectively reduce mitral regurgitation and require complex implantation procedures, especially in patients with heart conditions.
Innovation Solution
A method and system for delivering a mitral annular platform via a catheter that is anchored in the mitral valve annulus, allowing for the subsequent deployment of a valved-stent mitral valve prosthetic device, utilizing a stent-like tube with radially bending elements and a resilient ring to create a stable platform for prosthetic valve mounting, enabling percutaneous or transapical implantation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a percutaneous catheter-based approach is used for mitral valve replacement, then minimally invasive deployment is achieved, but the device complexity and difficulty of implantation increase
Solution Approach 1:
The device is divided into two distinct stages: first, a mitral annular platform is delivered and anchored to create a stable foundation; second, a valved-stent prosthetic device is mounted on the platform. This segmentation allows each component to be optimized independently and simplifies the overall implantation process by breaking down the complex procedure into manageable steps.
Solution Approach 2:
The mitral annular platform is deployed and anchored in advance to create a consistent, standardized platform before the valved-stent prosthetic device is mounted. This preliminary action establishes a stable foundation that simplifies subsequent device placement and reduces the complexity of the overall implantation procedure.
2Reliability
If existing percutaneous mitral valve replacement devices are used, then mitral regurgitation reduction is attempted, but the devices fail to accurately address the dimensions and geometry of the mitral valve
Solution Approach 1:
The mitral annular platform is designed with specific geometric features that match the local anatomy of the mitral valve annulus. The platform includes an annular portion with a specific diameter and shape that conforms to the mitral valve's dimensions, ensuring accurate positioning and support for the prosthetic device while addressing the specific geometric requirements of the mitral valve.
3Adaptability or versatility
If a standardized platform is created for mitral valve prosthetic devices, then adaptability to different vendor devices is improved, but the device complexity increases
Solution Approach 1:
The mitral annular platform is designed as a universal, standardized structure that can accommodate valved-stent prosthetic devices from different vendors. The platform's consistent geometry and standardized mounting interface allow it to serve as a universal platform, improving adaptability without requiring multiple different platform designs.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a consistent platform for mitral valve prosthetic devices, facilitating uniform sizing and stable anchoring, thereby reducing mitral regurgitation and simplifying the implantation process, accommodating different vendor devices and improving safety for patients with heart conditions.
Implementation Method 1
the plurality of lower elements are bent by imparting a plastic deformation to the metal until the plurality of lower elements extend radially
Data Source
AI summary
A method for delivering a platform for reinforcing an annulus of a mitral valve: Passing a catheter having a sheath covering a tube formed from a metal into the left atrium, the tube including: an annular portion defining at least one opening, a plurality of upper elements attached to an upper perimeter of the annular portion and extending axially, and a plurality of lower elements attached to a lower perimeter of the annular portion. Inserting the tube into the annulus of the mitral valve; withdrawing the sheath, but leaving the sheath covering the annular portion and the upper elements; bending the lower elements until the lower elements extend radially so as to be positioned beneath the mitral valve; then withdrawing the sheath from covering the annular portion and the upper elements; bending the upper elements until the upper elements extend radially so as to be positioned above the mitral valve.