Microstructural Observations of Pure Pyrolytic Carbons for Heart Valves
نویسندگان
چکیده
Near-isotropic pyrolytic carbon containing a small amount of co-deposited silicon carbide has been used for years as the materials from which prosthetic heart valves are fabricated [ 1 ]. Silicon carbide was introduced into this material to increase the hardness and thereby the wear resistance of the material. Silicon carbide, however, has poor thromboresistance relative to pyrolytic carbon, so its removal might improve the thromboresistance of the material.
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