Method of forming sites for tissue ingrowth in synthetic implants

摘要

An improved method of producing a site for tissue ingrowth on a surgical implant 20, 20 min by embedding a space occupier 10 possessing a desired pattern in the surface of the implant at the desired location for ingrowth and then solubilizing the embedded space occupier 10 to leave the pattern on the implant surface. Preferably, the implant 20, 20 min is fabricated from a composite comprising a semi-crystalline thermoplastic resin such as polyetheretherketone or polyphenylene sulfide, and the space occupier 10 is an acid-soluble metal plate machined to produce the desired pattern and removed by aqueous acid solution. The space occupier 10 is embedded onto the composite surface by induction heating. IMAGE