摘要 |
<p>Sputtering of a carbon cathode (20) is effected under regulated (45) voltage and current, which ensure proper adhesion of the sputtered carbon onto the substrate of the prosthesis while avoiding adverse effects on the substrate itself. The substrate is constituted by low melting materials such as polyester resins or polytetrafluoroethylene and may be flat, tubular or in the form of a yarn.</p> |