Mitral Valve Inversion Prostheses Annulus Reshaping

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Solution Overview

Problem

Current methods for treating mitral valve regurgitation, such as open-heart surgery, are invasive and carry significant risks, and there is a need for less invasive techniques to effectively repair the mitral valve and address leakage.

Innovation Solution

A minimally invasive method using a tubular implant with piercing members that transitions from a smaller to a larger diameter configuration, anchored to the mitral valve annulus via helical anchors or barbs, to reshape the valve and prevent leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If open-heart surgery is performed to repair the mitral valve, then the mitral valve can be effectively repaired and regurgitation corrected, but the procedure becomes highly invasive with significant risks

Engineering Contradiction:

Improvemitral valve repair effectivenessVSAvoidinvasiveness and surgical risks

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical open-heart surgical system with a transcatheter delivery system that uses a catheter to deliver the mitral valve prosthesis percutaneously through the femoral artery, eliminating the need for sternotomy and cardiopulmonary bypass

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a catheter as an intermediary device to deliver the mitral valve prosthesis to the target location without requiring direct surgical access to the heart, thereby reducing invasiveness while maintaining repair effectiveness

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If a tubular implant with piercing members is used to reshape the mitral valve annulus, then the valve can be repaired percutaneously with reduced invasiveness, but the device complexity increases

Engineering Contradiction:

ImproveinvasivenessVSAvoidimplant structure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent divides the implant into distinct functional segments: a tubular body for structural support, piercing members for anchoring to the annulus, and an expandable component for reshaping, allowing each segment to perform its specific function independently

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent incorporates an expandable tubular body that can transition from a compressed delivery state to an expanded functional state, allowing the device to be delivered through a small catheter and then deployed to its full functional configuration at the target site

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10543088B2Mitral valve inversion prostheses

Publication Date: 2020.01.28 BOSTON SCIENTIFIC SCIMED INC

AI summary

Systems, devices and methods for resizing a valve annulus are described. An implant is delivered proximate a mitral valve, the implant comprising a tubular body and a plurality of piercing helical anchors, the tubular body comprising an proximal diameter and a distal diameter. Tissue proximate the mitral valve is engaged by rotating the plurality of anchors with corresponding rotational drivers. The tubular body may be transitioned from a first structural configuration having the proximal diameter smaller than the distal diameter to a second structural configuration having the proximal diameter larger than the distal diameter.