DETERMINING A RANGE OF MOTION OF AN ARTIFICIAL KNEE JOINT

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United States of America Patent

SERIAL NO

14405427

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Abstract

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A data processing method for determining a range of motion of an artificial knee joint which connects a femur and a tibia via a medial ligament and a lateral ligament, wherein at least the femur comprises an implant which forms a medial condyle and a lateral condyle, the method comprising the steps of: acquiring the maximum lengths of the lateral ligament and the medial ligament for a particular flexion angle of the knee joint; calculating a first virtual position between the femur and the tibia in which the lateral condyle of the femoral implant touches the tibia and the medial ligament is stretched to its maximum length; calculating a maximum valgus angle of the range of motion from the first virtual position; calculating a second virtual position between the femur and the tibia in which the medial condyle of the femoral implant touches the tibia and the lateral ligament is stretched to its maximum length; and calculating a maximum varus angle of the range of motion from the second virtual position.

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Patent Owner(s)

Patent OwnerAddress
SMITH & NEPHEW INC1450 BROOKS ROAD MEMPHIS TN 38116
SMITH & NEPHEW ORTHOPAEDICS AGTHEILERSTRASSE 1A ZUG 6300
SMITH & NEPHEW PTE LIMITED50 RAFFLES PLACE #32-01 SINGAPORE LAND TOWER SINGAPORE 048623

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bauer, Martin Munich, DE 104 542
Brack, Christian Neusass, DE 21 409
Fleig, Oliver Baldham, DE 23 104
Leder, Zohar Munich, DE 6 21

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