Co-moulded single-piece prosthetic finger joint made from liquid silicone rubber and polyether ether ketone

摘要

An implantable prosthesis made from first and second materials which may be polyetheretherketone (PEEK) and a silicone rubber. The materials may be injection moulded into unitary finger joints and craniomaxillofacial implants (100, figure 12) in a co-moulding process. An exemplary finger joint has a body 20 made of silicone rubber which defines intramedullary shafts 12, 14 and a hinge portion 22. Regions 24, 26 of the body on opposing sides of hinge 22 are over-moulded with a protective reinforcing sleeve of PEEK. The co-moulding process may utilize heat from the first injected material to cure the second injected material.