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

Claim 0:
1. A system for total knee replacement comprising:
a proximal tibial alignment guide:
configured to locate on a tibia of a leg in extension;
defining a first set of tibial pin guides configured to guide location of a first set of pins on the tibia; and
defining a tibial reference surface relative to the first set of tibial pin guides;

a distal femoral alignment guide:
configured to locate on a femur of the leg in extension;
constrained relative to the proximal tibial alignment guide by the tibial reference surface; and
defining a first set of femoral pin guides, relative to the first set of tibial pin guides, configured to guide location of a second set of pins on the femur;

a proximal tibial cut guide:
configured to locate on the tibia via the first set of pins; and
defining a proximal tibial cut plane for resecting a proximal structure of the tibia to form a resected proximal tibial face;

a distal femoral cut guide:
configured to locate on the femur via the second set of pins; and
defining a distal femoral cut plane, linearly offset from the proximal tibial cut plane, for resecting a distal structure of the femur to form a resected distal femoral face;

an intermediate femoral alignment guide:
configured to insert between the tibia and the femur in partial flexion;
comprising a tibial side configured to mate with the resected proximal tibial face;
comprising a femoral side angularly offset from the tibial side by an intermediate angle and configured to mate with the resected distal femoral face; and
defining a second set of femoral pin guides, relative to the tibial side and the femoral side, configured to guide location of a third set of pins on the femur; and

a posterior femoral cut guide:
configured to locate on the third set of pins; and
defining a posterior femoral cut plane, angularly offset from the resected distal femoral face, for resecting a posterior structure of the tibia to form a resected distal femoral face.