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US 6,221,110 B1Granted
Set of prostheses of different sizes
OwnerFranz Copfinventor
Life of this patent
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OwnerFranz Copfinventor
Estimating the term…
A set of prostheses of different sizes comprises in each case a pair of prostheses (10, 10*), which apart from the clear external contour of their anchoring sections (20, 20*) have the same geometry. The anchoring section (20) of a first prosthesis (10) of the pair is constructed as an anchoring section with a cage structure which can be implanted in a cement-free manner, whilst the anchoring section (20*) of the second prosthesis of the pair is constructed as an anchoring section with smooth boundary surfaces which is to be cemented in place. The clear external surface of the anchoring section (20) of the prosthesis (10) which is to be implanted in a cement-free manner lies at a substantially constant distance beyond the clear external surface of the anchoring section (20*) of the prosthesis (10*) which is to be cemented in place. In this manner, the surgeon can still decide, after preparing the bone end, whether he prefers a cemented prosthesis (10*) or a prosthesis (10) which is to be incorporated without cement.
A set of prostheses (10) of different sizes, each prosthesis comprising a support plate (14), to which a condyle joint element (18) is fitted, and an anchoring section (20), which can be introduced into a cavity of a bone (28), wherein the set comprises at least one pair of alternatively useable prostheses (10, 10*), wherein said anchoring section (20) of a first prostheses (10) is to be implanted in a cement-free manner and is more particularly constructed as a cage, and wherein said anchoring section (20*) of a second prosthesis (10*) is constructed as a solid shaft, a clear external contour of the first prosthesis (10) lying at a substantially constant distance beyond and parallel to a clear external contour of the second prosthesis (10*).
Dependencies are inferred from the claim text.