Patent ID: 11911050
Assignee: KNIMBLE DESIGNS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. The system for total knee replacement of claim 5:
wherein the proximal tibial alignment guide is configured to locate on the tibia and the distal femoral alignment guide is configured to locate on the femur with the knee located in extension, the medial ligament tensioned to a target extension tension, and the lateral ligament tensioned to the target extension tension;
wherein the tibial reference surface locates the distal femoral alignment guide with the first set of pin guides distally offset from the second set of pin guides by a first distance;
wherein the proximal tibial cut guide:
locates on the tibia via the first set of pins; and
defines the proximal tibial cut plane offset from the first set of pins by a second distance;

wherein the distal femoral tibial cut guide:
locates on the femur via the second set of pins; and
defines the distal femoral cut plane parallel to the proximal tibial cut plane and offset from the first set of pins by a third distance; and

wherein a sum of the second distance, the third distance, and a target combined height of an artificial tibial component and an artificial femoral component in extension approximates the first distance to produce the target extension tension on the medial ligament and the lateral ligament with the artificial tibial component and the artificial femoral component installed in the knee and with the knee in extension.