This open-caged ball valve has silastic or silicone rubber poppets. This was the first time a valve had cloth-covered struts. The reasoning behind this design was that Dr. Nina Starr Braunwald, one of ...

The Wada-Cutter cardiac valve prosthesis is a hingeless, tilting disc valve. There are two struts which project into the valve orifice, acting as hinges. The titanium inner ring and radiolucent solid ...