Patent US2895668A successfully refreshed from Google Patents.
Patent EP0986994A2 successfully refreshed from Google Patents.
EP0986994A2
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EP
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Tapped box femoral stem attachment for a modular knee prosthesis
Assignee: DePuy Products Inc
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Filing: 1999-09-17
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Granted: —
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Expires: 2019-09-17
Abstract
Abstract The present invention provides a knee prosthesis having a femoral component having a pair of spaced apart condylar portions and a boss structure extending between the condylar portions. The knee prosthesis also includes a stem component having a proximal end and a distal end. The knee prosthesis further includes a lock nut for securing the stem member to the femoral component.
Inventors
- 👤 Michael O'neil
- 👤 Arnold Oyola
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 21:02
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/38; A61F2/3859; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30146; A61F2002/30316; A61F2002/30329; A61F2002/30405; A61F2002/30476; A61F2002/30507; A61F2002/30535; A61F2002/30604; A61F2002/30667; A61F2002/30682; A61F2002/30708; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30774; A61F2002/30795; A61F2002/30797; A61F2002/3082; A61F2002/30827; A61F2002/30828; A61F2002/30878; A61F2002/30886; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2250/00; A61F2250/0058; A61F2250/0084; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00029
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
37 words
A modular knee prosthesis comprising: a first component having a pair of spaced apart condylar portions and a boss
structure extending between the condylar portions, the boss structure having a cavity
formed within a superior surface thereof.
Claim 2
Dependent Claim
31 words
The knee prosthesis of claim 1, further comprising a second component
having a proximal and a distal end, wherein the distal end is mateable with the
cavity of the first component.
Claim 3
Dependent Claim
20 words
The knee prosthesis of claim 2, further comprising a third component for
securing the second component to the first component.
Claim 4
Dependent Claim
29 words
The knee prosthesis of claim 3, wherein the first component is a femoral
component, the second component is an elongate stem and the third component is a
lock nut.
Claim 5
Dependent Claim
42 words
The knee prosthesis of claim 4, wherein a portion of the distal end of the
stem is threaded, the cavity has threads formed therein and the lock nut has threads
formed therein both for threadably engaging the distal end of the stem.
Claim 6
Dependent Claim
31 words
The knee prosthesis of claim 5, wherein the distal end of the stem component
is offset a selected distance in the medial lateral direction towards the medial side of
the prosthesis.
Claim 7
Dependent Claim
31 words
The knee prosthesis of claim 5, wherein the distal end of the stem component
is offset a selected distance in the medial lateral direction towards the lateral side of
the prosthesis.
Claim 8
Dependent Claim
21 words
The knee prosthesis of claim 5, wherein the distal end of the stem component
is centered in the medial lateral direction.
Claim 9
Dependent Claim
12 words
The knee prosthesis of claim 5, wherein the elongate stem is bowed.
Claim 10
Dependent Claim
88 words
A modular knee prosthesis comprising: a femoral component having a pair of spaced apart condylar portion and a
boss structure extending between the condylar portions, the boss structure having a
superior mounting surface with a cavity formed therein, the cavity defined at one
end by a substantially horizontal endwall; a stem component having a proximal end and a distal end which is mateable
with the boss cavity; and a lock nut positionable between the femoral component and stem component
for securing the stem member to the femoral component.
References Cited (Backward Citations)
No citation records indexed.
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