Patent No. EP3310301 (titled "Prosthetic Heart Valve") was filed by Fondazione Rimed on Jun 16, 2016. The application was issued on Feb 21, 2024.
A prosthetic heart valve for mitral annulus implantation comprises a wire support framework reversibly transformable between collapsed and expanded configurations. In the expanded state, the framework defines a fluid pathway with a D-shaped cross-section at the annulus engagement portion, featuring a tension adjusting mechanism. One or more leaflets enable unidirectional flow. The framework consists of multiple loops, including two petal-shaped loops extending from the D-shaped portion. Additional loops are located at the apex of one or more loops to reduce tension during transformation. In the collapsed configuration, petal-shaped loops form elongate arms of unequal lengths. The device is designed as a bi-leaflet, self-expanding valve to restore unidirectional blood flow from the left atrium to the left ventricle.

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