Coronary Sinus Annuloplasty Device Preventing Artery Compression

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Solution Overview

Problem

Traditional mitral valve annuloplasty procedures require open-heart surgery, which is morbid and has significant convalescence, while percutaneous approaches face challenges such as coronary artery compression during coronary sinus annuloplasty and inefficient pacing methods like RVAP and RVSP that lead to ventricular desynchronization.

Innovation Solution

A device with a bridge and elongate inner tether is implanted through the coronary sinus to straddle the coronary artery, preventing compression and improving mitral valve function, combined with a pacing system that includes a cardiac pacing controller and electrodes for efficient heart stimulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If percutaneous coronary sinus annuloplasty is performed, then surgical morbidity is reduced, but coronary artery compression occurs

Engineering Contradiction:

Improvesurgical morbidityVSAvoidcoronary artery compression

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

A protective device is introduced as an intermediary element between the annuloplasty tether and the coronary artery. The device includes a first portion that contacts the tether and a second portion that contacts the coronary artery, creating a protective barrier that prevents direct compression of the artery by the tether while allowing the annuloplasty procedure to proceed effectively

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If traditional open-heart annuloplasty is performed, then mitral valve repair effectiveness is ensured, but surgical morbidity and convalescence time increase

Engineering Contradiction:

Improvemitral valve repair effectivenessVSAvoidconvalescence time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the traditional open-heart surgical approach with a percutaneous catheter-based system. The annuloplasty tether is delivered through a catheter into the coronary sinus, eliminating the need for sternotomy, thoracotomy, and cardiopulmonary bypass, thereby maintaining repair effectiveness while dramatically reducing surgical trauma and recovery time

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If RVAP or RVSP pacing is used, then pacemaker function is provided, but ventricular desynchronization occurs

Engineering Contradiction:

Improvepacemaker functionVSAvoidventricular synchronization

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent transitions from single-site ventricular pacing (RVAP/RVSP) to biventricular pacing by adding a left ventricular pacing capability. The lead system includes both right ventricular and left ventricular electrodes, enabling coordinated stimulation of both ventricles and restoring ventricular synchronicity while maintaining pacemaker functionality

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11007059B2Annuloplasty procedures, related devices and methods

Publication Date: 2021.05.18 TRANSMURAL SYSTEMS LLC

AI summary

Devices and methods are disclosed for the treatment or repair of regurgitant cardiac valves, such as a mitral valve. An illustrative annuloplasty device can be placed in the coronary sinus to reshape the mitral valve and reduce mitral valve regurgitation. The disclosure also provides improved techniques for cardiac pacing.