Method of forming tissue ingrowth surface on surgical implants
AssigneePfizer Hospital Products Group, Inc.
InventorsRuey Y. Lin, Casper F. Stark
Life of this patent
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Abstract
A method of producing a site for tissue ingrowth on a surgical implant by embedding a space occupier possessing a desired pattern in the surface of the implant at the desired location for ingrowth and then solubilizing the embedded space occupier to leave the pattern on the implant surface. Preferably, the implant is fabricated from a composite comprising a semi-crystalline thermoplastic resin such as polyetheretherketone or polyphenylene sulfide, and the space occupier is an acid-soluble metal plate machined to produce the desired pattern and removed by aqueous acid solution.
Claims13
A method of producing a site for tissue ingrowth on a surgical implant, which comprises the steps of:
- embedding a space occupier possessing a desired pattern for tissue ingrowth directly into the surface of the implant by pressing the space occupier directly into the implant surface at a selected portion of the implant where tissue growth is desired;
- and
- solubilizing the embedded space occupier with an agent non-reactive toward the implant to remove the space occupier and leave the desired pattern of sufficient depth in the implant surface to accept tissue ingrowth.
Dependencies are inferred from the claim text.