Knee prosthesis system
AssigneeWaldemar Link GmbH & Co. KG
InventorArnold Keller
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Abstract
A knee prosthesis system includes a single-piece tibia plateau with two sliding cavities, a single-piece femur component with two condylar sliding surfaces, the distances between and shapes of which are adapted to the tibial sliding cavities and a pair of unconnected femoral condylar cups, the shapes of the sliding surfaces of which are adapted to the tibial sliding cavities. To be able also to adapt their relative positions, including their distances apart, to the sliding cavities, the system includes a position instrument which ensures this adapted relative position of the codylar cups.
Claims16
A knee prosthesis system, comprising in combination a single-piece tibia plateau having two tibial sliding cavities, a single-piece femur component having two condylar sliding surfaces, the distance between and shape of which are adapted to the tibial sliding cavities and a pair of unconnected femoral condylar cups each having a condylar sliding surface the shape of which is adapted to the tibial sliding cavities, a positioning instrument which gives the condylar cups of the pair of unconnected pair of condylar cups predetermined positions relative to each other and to the tibial sliding cavities of the single-piece tibial plateau and a sawing gage having cutting planes in predetermined positions relative to the single-piece femur component and the pair of unconnected condylar cups.
Dependencies are inferred from the claim text.