Patent ID: 8221475

Claim:
A method for creating a positive-fit connection capable of load-bearing to a tissue part in a human or animal body, the method comprising the steps of: providing a plate- or film-shaped implant or implant part comprising a first surface to be in contact with the tissue part and a second surface opposite the first surface and further comprising a first material which is biocompatible, has thermoplastic properties, is liquefiable by mechanical oscillation, and is arranged to be liquefied by the mechanical oscillation at the first surface, positioning the implant on the tissue part with the first surface in contact therewith, impinging the second surface of the positioned implant with mechanical oscillation and simultaneously pressing the implant against the tissue part for a time sufficient for liquefying at least a part of the first material and for pressing it into surface unevennesses, cavities or pores of the implant part, letting the first material pressed into said surface unevennesses, cavities or pores to re-solidify to constitute the positive-fit connection.