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US 8,945,230 B2Granted
Patient selectable knee joint arthroplasty devices
AssigneeConforMIS, Inc.
InventorsPhilipp Lang, Daniel Steines, Wolfgang Fitz, Konstantinos Tsougarakis, Rene Vargas-Voracek
Life of this patent
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Abstract
Disclosed herein are methods and devices for repairing articular surfaces in a knee joint. The articular surface repairs are customizable or highly selectable for each patient and geared toward providing optimal fit and function. Kits are also provided to enable customized repairs to be performed.
Claims26
A patient-specific implant for a patient's knee joint, the implant comprising:
- a condyle implant portion having a bone-facing surface configured to oppose at least a portion of the femoral condyle of the patient's knee joint and joint-facing surface configured to provide an articular surface, wherein at least a portion of the bone-facing surface has a shape configured to abut one or more planar cut surfaces of the femoral condyle;
- and wherein the joint-facing surface has a three-dimensional shape that includes articular shape information of a corresponding portion of the femoral condyle of the patient's knee joint, wherein the articular shape information is derived from electronic image data of the corresponding portion of the femoral condyle of the patient's knee joint.
A patient-specific knee implant for a patient's knee joint, the implant comprising:
- a femoral implant having a bone-abutting surface portion and an articular surface portion, wherein the bone-abutting surface portion is sized and shaped to abut the femoral condyle of the patient's knee joint;
- and wherein the articular surface has a three-dimensional size and shape that includes articular shape information of a corresponding portion of the femoral condyle of the patient's knee joint, wherein the articular shape information is derived from electronic image data of the corresponding portion of the femoral condyle of the patient's knee joint.
Dependencies are inferred from the claim text.