A prosthetic heart valve is circumferentially collapsible for less invasive delivery into a patient. The valve re-expands to operating size at the implant site in the patient. A frame structure of the valve includes restraining structure that can help to push one or more of the patient's native heart...http://www.google.fr/patents/US20100249923?utm_source=gb-gplus-shareBrevet US20100249923 - COLLAPSIBLE/EXPANDABLE PROSTHETIC HEART VALVES WITH NATIVE CALCIFIED LEAFLET RETENTION FEATURES
COLLAPSIBLE/EXPANDABLE PROSTHETIC HEART VALVES WITH NATIVE CALCIFIED LEAFLET ...
