Between 1968 and 1973, the Carpentier-Edwards bioprosthetic porcine valve was introduced. In 1970, a clinical evaluation of Carpentier-Edwards valves was conducted. The first Carpentier-Edwards bioprosthesis incorporating a special preservation method was implanted by Prof. Alain Carpentier in 1975. This valve was released for general use one year later. In 1982, the Carpentier-Edwards S.A.V. (supra-annular valve) Bioprosthesis was introduced outside the USA.
The Edwards family of porcine stented bioprostheses include:
Carpentier-Edwards Bioprostheses are comprised of pig aortic valves that have been “fixed” in a preservation liquid and then mounted on flexible frames. The frame is designed to be flexible at the opening as well as where the leaflets come together. The frame is covered with a porous, knitted polytetrafluoroethlyene (PTFE) cloth. A sewing ring made of molded silicone rubber covered by polytetrafluoroethylene cloth enables the surgeon to sew the valve into the patient.