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US 8,545,569 B2Granted
Patient selectable knee arthroplasty devices
AssigneeConforMIS, Inc.
InventorsWolfgang Fitz, Philipp Lang, Daniel Steines, Konstantinos Tsougarakis, Rene Vargas-Voracek, Hacene Bouadi, Cecily Anne Snyder
Life of this patent
Estimating the term…
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.
Claims24
An implant for implantation on a patient's femur, the implant comprising:
- (a) a condylar portion having (i) a condylar bone-facing implant surface configured to oppose at least a portion of a femoral condyle of the patient's femur and (ii) a condylar articular implant surface configured to articulate with at least a portion of a tibial surface;
- and
- (b) a trochlear portion having (i) a bone-facing implant surface configured to oppose at least a portion of a trochlea and (ii) an articular implant surface configured to articulate with at least a portion of a patellar surface, when the implant is implanted on the patient's femur;
- wherein the condylar portion and the trochlear portion are formed as a single component;
- and
- wherein at least a portion of one of the bone-facing implant surfaces comprises a chamfer cut surface to abut a bone cut surface and wherein the condylar portion is configured to have at least portions of the patient's femoral shape and include patient-specific shape information derived from electronic image data of the femoral condyle.
3 more elements
An implant for implantation on a patient's femur, the implant comprising:
- (a) a condylar portion having (i) a condylar bone-facing implant surface configured to oppose at least a portion of a femoral condyle of the patient's femur and (ii) a condylar articular implant surface configured to articulate with at least a portion of a tibial surface;
- and
- (b) a trochlear portion having (i) a bone-facing implant surface configured to oppose at least a portion of a trochlea and (ii) an articular implant surface configured to articulate with at least a portion of a patellar surface, when the implant is implanted on the patient's femur;
- and
- wherein at least a portion of one of the bone-facing implant surfaces comprises chamfer cut surface to abut a bone cut surface and wherein the condylar portion is configured to match a corrected joint anatomy of the patient and include patient-specific shape information derived from electronic image data of the femoral condyle.
2 more elements
An implant for implantation on a patient's femur, the implant comprising:
- (a) a condylar portion having (i) a condylar bone-facing implant surface configured to oppose at least a portion of a femoral condyle of the patient's femur and (ii) a condylar articular implant surface configured to articulate with at least a portion of a tibial surface;
- and
- (b) a trochlear portion having (i) a bone-facing implant surface configured to oppose at least a portion of a trochlea and (ii) an articular implant surface configured to articulate with at least a portion of a patellar surface, when the implant is implanted on the patient's femur;
- and
- wherein at least a portion of one of the bone-facing implant surfaces comprises a chamfer cut surface to abut a bone cut surface and wherein the condylar portion is configured to have at least portions of the patient's femoral shape and include patient-specific information derived from electronic image data of the femoral condyle,
- wherein the implant is selected from a library of implants and further manipulated to match the patient's femur.
3 more elements
Dependencies are inferred from the claim text.