COMPOSITE IMPLANT

摘要

A composite interbody vertebral implant for facilitating fusion of adjacent vertebrae. The implant includes a first endplate of a porous metal material and a second endplate of a porous metal material which are configured to allow bone in-growth. The implant also includes a polymeric body positioned between and bonded to the first and second endplates such that polymeric material of the polymeric body is impregnated into pores of the first and second endplates to bond the components together. The implant may include a cavity extending through the composite implant configured to receive bone growth material to facilitate fusion between a first vertebra and a second vertebra.

主权项

1. A composite vertebral implant for positioning between adjacent vertebrae, the composite vertebral implant comprising:
a ring-like thermoplastic polymeric body having an inner surface and an inner shelf portion, the inner shelf portion having a first ledge surface and a second ledge surface; a first ring-like porous member having a plurality of pores formed therein, the first ring-like porous member having a first surface on a first side of the first ring-like porous member; a second ring-like porous member having a plurality of pores formed therein, the second ring-like porous member having a first surface on a first side of the second ring-like porous member; wherein the first surface of the first-ring like porous member is configured to contact the first ledge surface of the inner shelf portion of the ring-like polymeric body; and wherein the first surface of the second ring-like porous member is configured to contact the second ledge surface of the inner shelf portion of the ring-like polymeric body.