Biostable composite implants

The biocompatibihty of PSURs with various compositions of PHMO and PDMS was assessed by implantation into sheep for 3 months. The implants were examined microscopically and compared with the control implants of Pellethane 2363-80A and Pellethane 2363-55D. Polyurethanes based on PDMS had excellent flexibility, strength, and biostability. 

The biostable materials such as metals, ceramics, glasses, polymers, and stable composites are intended to stay in a body for the patient s lifetime and function appropriately. They should be physiologically inert, cause only minimal response of the surrounding tissues, and retain their properties for years in vivo. Biostable materials have wide application in permanent prostheses such as joint prostheses, sutures, and other implants. 

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