Movable Paddle Valve Repair Device for Mitral Regurgitation
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Solution Overview
Problem
Current methods for treating mitral valve regurgitation, such as surgical stitching and catheter-delivered clips, are inadequate as they either restrict blood flow or create stress on patient leaflets, and there is a need for a more effective and less invasive solution to repair the mitral valve without causing further complications.
Innovation Solution
A valve repair system comprising a delivery device, a valve repair device with movable paddles and gripping members, and a paddle control mechanism that allows independent movement of the paddles to attach to the mitral valve leaflets, effectively closing the gap between them to prevent regurgitation, while minimizing stress on the valve tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If surgical stitching is used to treat mitral valve regurgitation, then the valve can be repaired, but it restricts blood flow
Solution Approach 1:
The valve repair device is divided into multiple independent paddles (first paddle, second paddle, etc.) that can be positioned and adjusted separately. Each paddle can be independently controlled to attach to specific portions of the valve leaflets, allowing localized repair without restricting overall blood flow through the valve.
Solution Approach 2:
The paddles are designed to be movable between open and closed positions, allowing the device to adapt to the dynamic nature of valve operation. The independent control of each paddle enables fine-tuning of the repair configuration to maintain optimal blood flow while achieving effective valve closure.
2Ease of operation
If catheter-delivered clips are used to treat mitral valve regurgitation, then the procedure is less invasive, but it creates stress on patient leaflets
Solution Approach 1:
The paddles are constructed with flexible, compliant materials that can conform to the natural curvature and movement of the valve leaflets. This flexibility distributes the attachment stress across a larger area and reduces concentrated stress points that could damage the delicate leaflet tissue.
Solution Approach 2:
The device allows for gradual, controlled adjustment of paddle positions after implantation, enabling the valve and surrounding tissue to adapt to the repair without experiencing sudden or excessive stress. The independent paddle control permits incremental tightening and positioning to minimize tissue trauma.
3Reliability
If multiple clips are placed on the commissures of the mitral valve, then leaflet attachment can be achieved, but operation time increases and blood flow is restricted
Solution Approach 1:
Multiple paddle attachment functions are combined into a single integrated device that can be deployed and controlled as one unit. The paddles work together simultaneously to achieve secure leaflet attachment, eliminating the need for sequential placement of multiple separate clips and reducing overall procedure time.
Solution Approach 2:
The valve repair device is designed with multiple paddles that can independently perform attachment functions at different locations on the valve. This multi-functional design allows a single device to accomplish what would otherwise require multiple separate interventions, streamlining the surgical procedure.
Data Source
AI summary
A system for implanting a repair device onto a native valve of a natural heart to repair the native valve of a patient during a non-open-heart procedure. The system includes a surgical delivery instrument, a valve repair device, and a paddle control mechanism. The surgical delivery instrument has at least one lumen. The valve repair device is configured to be delivered through the lumen of the surgical delivery instrument and to attach to a native valve of a patient. The valve repair device includes a first paddle, a second paddle, and a pair of gripping members. The first and second paddles are movable between an open position and a closed position. The paddles and the gripping members are configured to attach to the native valve of the patient. The paddle control mechanism is configured to move the first and second paddles independently of each other.