Method for making a metal-backed acetabular implant
First Claim
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1. An acetabular implant comprising:
- a longitudinal axis;
a shell having an outer shell surface and an inner shell surface, the outer shell surface configured to contact bone;
an integument having an outer integument surface and an inner integument surface, the outer integument surface configured to couple to the inner shell surface; and
a plastic bearing having an outer bearing surface and an inner bearing surface, the inner bearing surface defining a socket, the inner integument surface configured to form a friction-fit with the outer bearing surface;
wherein the inner integument surface comprises a base centered about the longitudinal axis and extending substantially perpendicular to the longitudinal axis; and
wherein the inner integument surface further comprises a first taper portion and a second taper portion, the first taper portion extending a first distance from the base of the integument and the second taper portion extending a second distance from the first taper portion, the second distance exceeding the first distance.
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Abstract
A metal-backed acetabular implant and a method of forming the same.
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Citations
18 Claims
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1. An acetabular implant comprising:
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a longitudinal axis; a shell having an outer shell surface and an inner shell surface, the outer shell surface configured to contact bone; an integument having an outer integument surface and an inner integument surface, the outer integument surface configured to couple to the inner shell surface; and a plastic bearing having an outer bearing surface and an inner bearing surface, the inner bearing surface defining a socket, the inner integument surface configured to form a friction-fit with the outer bearing surface; wherein the inner integument surface comprises a base centered about the longitudinal axis and extending substantially perpendicular to the longitudinal axis; and wherein the inner integument surface further comprises a first taper portion and a second taper portion, the first taper portion extending a first distance from the base of the integument and the second taper portion extending a second distance from the first taper portion, the second distance exceeding the first distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An acetabular implant comprising:
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a longitudinal axis; a shell configured to contact bone; a plastic bearing defining a socket; and an integument positionable between the shell and the bearing, the integument configured to form a friction-fit with the bearing; wherein the integument comprises a base centered about the longitudinal axis and extending substantially perpendicular to the longitudinal axis; and wherein the integument further comprises a first taper portion and a second taper portion, the first taper portion extending a first distance from the base of the integument and the second taper portion extending a second distance from the first taper portion, the second distance exceeding the first distance. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification