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US 12,714,444 B2Granted
Knee arthroplasty instrument with sensing capability
AssigneeOrthosoft Ulc
InventorsCatherine Leveille, Jerome Casaubon
Life of this patent
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Abstract
A knee arthroplasty instrument may include a tensioning instrument and at least a first sensor. The tensioning instrument can optionally include a tibial component configured to engage the tibia and a femoral component configured to engage the femur. The femoral component can be movably coupled to the tibial component to place the knee joint in tension by separating the tibia and the femur. The first sensor can be coupled to the tensioning instrument and can be configured to collect first data regarding a torque of the tensioning instrument when separating the tibia and the femur.
Claims15
A knee arthroplasty system comprising:
- a tensioning instrument including a tibial component configured for placement against a tibia and a femoral component configured for placement against a femur, the femoral component being moveable relative to the tibial component to place a knee joint in tension by separating the tibia and the femur, wherein the tensioning instrument includes comprises:
- a base to which the tibial component and femoral component are coupled;
- a gear at least partially housed inside the base, wherein the gear meshes with a rack to drive movement of the femoral component relative to the tibial component;
- and
- a first sensor at least partially housed inside the base and coupled to the gear of the tensioning instrument, the first sensor configured to collect first data regarding a torque of the tensioning instrument when separating the tibia and the femur;
- and
- a robotic surgical device including processing circuitry, the robotic surgical device configured to assist in a knee arthroplasty, wherein the processing circuitry of the robotic surgical device electronically communicates with at least the first sensor to receive the first data and triggers an update of a display to visually indicate a tension load of the tensioning instrument based upon the torque of the gear of the tensioning instrument.
4 more elements
A method for intraoperatively determining a tension or laxity of a knee joint during a knee arthroplasty, the method comprising:
- positioning a tensioning instrument within the knee joint, the tensioning instrument including a tibial component that abuts a tibia and a femoral component abuts a femur, the tensioning instrument comprising:
- a base to which the tibial component and femoral component are coupled;
- a gear at least partially housed inside the base, wherein the gear meshes with a rack to drive movement of the femoral component relative to the tibial component;
- and
- a first sensor at least partially housed inside the base and coupled to the gear of the tensioning instrument, the first sensor configured to collect first data regarding a torque of the tensioning instrument when separating the tibia and the femur;
- tensioning the knee joint by separating the femur from the tibia with the tensioning instrument;
- measuring a torque of the tensioning instrument using the first sensor, the first sensor configured to collect first data regarding the torque of the tensioning instrument when separating the tibia and the femur;
- transmitting data regarding the torque to a robotic surgical device including processing circuitry, the robotic surgical device configured to assist in a knee arthroplasty, wherein the processing circuitry of the robotic surgical device electronically communicates with at least the first sensor to receive the first data and triggers an update of a display;
- and
- displaying a tension load of the tensioning instrument based upon the torque of the gear of the tensioning instrument.
7 more elements
A knee arthroplasty system comprising:
- a tensioning instrument including a tibial component configured for placement against a tibia and a femoral component configured for placement against a femur, the femoral component being moveable relative to the tibial component to place a knee joint in tension by separating a tibia and a femur of the knee joint, the tensioning instrument comprising:
- a base to which the tibial component and femoral component are coupled;
- a gear at least partially housed inside the base, wherein the gear meshes with a rack to drive movement of the femoral component relative to the tibial component;
- and
- a first sensor at least partially housed inside the base and coupled to the gear of the tensioning instrument, the first sensor configured to collect first data regarding a torque of the tensioning instrument when separating the tibia and the femur;
- and
- a robotic surgical device including processing circuitry, the robotic surgical device configured to assist in a knee arthroplasty, wherein the processing circuitry of the robotic surgical device is configured to:
- (i) electronically communicate with at least the first sensor to receive the first data;
- (ii) perform predictive analytics using at least the first data and a database of patient anatomical models to generate a personalized recommendation;
- and
- (iii) triggers an update of a display to visually indicate a tension load of the tensioning instrument based upon the torque and an alert recommending a position for a femoral resection of the femur based on the personalized recommendation.
8 more elements
Dependencies are inferred from the claim text.