US2001016778A1PendingUtilityA1

Fixation of a ceramic structural member by way of gliding component in a femoral part

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Priority: Jan 17, 1997Filed: Feb 1, 2001Published: Aug 23, 2001
Est. expiryJan 17, 2017(expired)· nominal 20-yr term from priority
Inventors:Dirk BadorfHartmut Kalberer
A61F 2002/3079A61F 2310/00179A61F 2310/00011A61F 2002/30774A61F 2002/30433A61F 2310/00604A61F 2002/30929A61F 2002/30451A61F 2/30767A61F 2002/30383A61F 2220/0025A61F 2/3859A61F 2220/0058A61F 2002/30385A61F 2220/0041
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Claims

Abstract

The invention relates to a knee-joint endoprosthesis with a metallic femoral part ( 2 ) anchored in the femur that articulates with a tibial part anchored in the tibia bone, the articulating surface of the femoral part ( 2 ) being a ceramic structural member ( 3 ) that is connected to the femoral part ( 2 ) in mechanically stable manner. With a view to optimising the attachment of the ceramic structural member ( 3 ) to the femoral part ( 2 ), various possible solutions are proposed.

Claims

exact text as granted — not AI-modified
1 . Knee-joint endoprosthesis with a metallic femoral part anchored in the femur that articulates with a tibial part anchored in the tibia bone, the articulating surface of the femoral part being a ceramic structural member that is connected to the femoral part in mechanically stable manner, characterised in that the ceramic structural member is non-detachably connected to the femoral part by shrinking on, soldering or welding.  
     
     
         2 . Knee-joint endoprosthesis according to    claim 1   , characterised in that the ceramic structural member is connected to the femoral part additionally by means of congruent surface arrangements.  
     
     
         3 . Knee-joint endoprosthesis according to    claim 2   , characterised in that the ceramic structural member is connected to the femoral part by means of a slot/spring connection.  
     
     
         4 . Knee-joint endoprosthesis according to    claim 1   , characterised in that two structural members are used per knee-joint endoprosthesis.  
     
     
         5 . Knee-joint endoprosthesis with a metallic femoral part anchored in the femur that articulates with a tibial part anchored in the tibia bone, the articulating surface of the femoral part being a ceramic structural member that is connected to the femoral part in mechanically stable manner, characterised in that the ceramic structural member is in the form of a layer and is secured by vapour deposition, spray application or such like.

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