Subannular Anchoring for Mitral Valve Prolapse Repair
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Solution Overview
Problem
Current methods for treating mitral valve prolapse are invasive and carry risks, with a need for simpler, less risky, and more effective non-surgical transcatheter solutions that preserve the native valve.
Innovation Solution
A method involving subannular anchoring, where a leaflet anchor implant is positioned adjacent to a prolapsed leaflet, and a subannular implant is placed between the prolapsed leaflet and the annulus, with a tether coupled to the leaflet anchor implant and secured to the annulus to reduce prolapse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional surgical methods are used to treat mitral valve prolapse, then effective repair can be achieved, but the procedure becomes invasive and carries surgical risks
Solution Approach 1:
A transcatheter delivery system acts as an intermediary to deliver the anchor implant and repositioning device through the bloodstream to the mitral valve, avoiding open surgery. The catheter-based delivery mechanism enables minimally invasive placement of the implant while achieving effective prolapse repair.
Solution Approach 2:
The invention replaces traditional surgical mechanical manipulation with a transcatheter delivery system that uses controlled expansion and repositioning mechanisms. The implant transitions from a compressed delivery state to an expanded functional state, providing mechanical support without requiring open surgical exposure.
2Reliability
If complex surgical procedures are performed to repair the mitral valve, then valve function can be restored, but the procedure complexity and recovery time increase
Solution Approach 1:
The treatment system is segmented into distinct functional components: a delivery catheter, an anchor implant, and a repositioning device. This segmentation allows each component to perform its specific function independently, simplifying the overall procedure while maintaining effective valve repair.
Solution Approach 2:
The anchor implant is pre-compressed within the delivery catheter before the procedure, and the delivery system is pre-positioned in the heart. This preliminary preparation reduces procedural complexity during the actual intervention, as the implant is ready for immediate deployment without requiring complex assembly during surgery.
3Reliability
If the mitral valve leaflet is repositioned using traditional methods, then prolapse can be corrected, but the native valve structure may be damaged
Solution Approach 1:
The anchor implant serves as an intermediary structure that provides support to the prolapsed leaflet without directly altering the native valve tissue. The implant distributes mechanical stress away from the vulnerable leaflet tissue, correcting prolapse while preserving native valve integrity.
Solution Approach 2:
The anchor implant utilizes a flexible structure that can adapt to the native valve geometry and provide support without rigid constraints. This flexibility allows the implant to correct prolapse while moving with the natural valve motion, preventing damage to the native valve structure.
Data Source
AI summary
Disclosed herein are methods, implants and systems for treatment of mitral valve prolapse by subannular fixation of the prolapsed mitral valve. The disclosure relates generally to the field of heart valve repair devices, methods and kits and more specifically to trans catheter methods and devices for insertion of tethers and anchors to the mitral valve leaflets for reduction the prolapsed mitral valve and subannular fixation of the prolapsed leaflet to treat mitral valve regurgitation.