Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1993-10-07
1995-04-11
Pellegrino, Stephen C.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
623 22, 606 99, A61F 234
Patent
active
054054044
ABSTRACT:
An apparatus for disassembling a head and acetabular component of a bipolar orthopedic hip prosthesis. The head includes a female taper configured for engaging a corresponding male taper of a femoral component of a hip prosthesis. The acetabular component includes a cavity in which the head is elastically constrained. The apparatus includes a rod having a male taper at one end thereof sized and configured to be received in taper locking engagement in the female taper of the head of the bipolar prosthesis. The rod has external threads that engage internal threads of a sleeve surrounding the rod. The sleeve includes a thrust surface at one end that engages the acetabular component as the sleeve is rotated relative to the rod. The sleeve causes the acetabular component to be pressed off of the head while the head remains taper locked to the rod. Continued rotation of the sleeve causes the head to be pressed off of the taper of the rod. A handle attached to the rod facilitates gripping the rod and preventing its rotation while the sleeve is being rotated.
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Arlitt Mark L.
de la Barcena Adriana
Dye Donald W.
Gardner Kenneth J.
Okoye Amber E.
Intermedics Orthopedics, Inc.
Pellegrino Stephen C.
Robinson Richard L.
Tucker Guy V.
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