Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1998-01-23
2000-06-13
Willse, David H.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
623 18, A61F 238
Patent
active
060744243
ABSTRACT:
An implantable orthopedic knee joint prosthesis includes a femoral component having an internal box geometry defined by a bone-engaging surface configured as a primary prosthesis. The femoral component has a threaded bore therein communicating with the bone-engaging surface. An adapter has a mating surface complementary to the box geometry of the femoral component and an internal box geometry defined by a bone-engaging surface configured as a revision prosthesis. A hole through the adapter is aligned with the threaded bore of the femoral component and has a recessed shoulder. An adapter screw has a head and a threaded shank, the head sized to be received within the hole of the adapter in engagement with the shoulder, and the shank being sized to be threadedly received within the threaded bore of the femoral component. The adapter screw includes a threaded bore therein. A spacer has a mating surface complementary to the box geometry of the adapter and an internal box geometry defined by a bone-engaging surface configured as a revision prosthesis. The spacer has a hole therethrough aligned with the threaded bore of the adapter screw. A spacer screw has a head and a threaded shank, the shank being sized to be threadedly received within the threaded bore of the adapter screw.
REFERENCES:
patent: 5702460 (1997-12-01), Carls et al.
patent: 5755800 (1998-05-01), O'Neil et al.
patent: 5766255 (1998-06-01), Slamin et al.
patent: 5766257 (1998-06-01), Goodman et al.
patent: 5782921 (1998-07-01), Coleran et al.
patent: 5876456 (1999-03-01), Sederholm et al.
Hofmann Aaron
Mumme Charles W.
Perrone, Jr. Charles H.
Barrow Kenneth S.
Jackson Suzette J.
Lyren Philip S.
Sulzer Orthopedics Inc.
Willse David H.
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