Soft tissue balancing in articular surgery
AssigneeZimmer, Inc.
InventorsPierre Couture, Alain Richard, Olivier Boisvert, Emily Gogarty, Louis-Philippe Amiot, Sebastien Parratte, Di Li
Life of this patent
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Abstract
Systems and methods may be used to perform robot-aided surgery. A system may include a robotic controller to monitor a position and orientation of an end effector coupled to an end of a robotic arm. The robotic controller may apply a force to a bone using the end effector, such as via a soft tissue balancing component. The robotic controller may determine soft tissue balance using information from a tracking system, such as a position of a first tracker affixed to the bone. The soft tissue balance may be output, such as to a display device.
Claims25
A soft tissue balancing system comprising:
- a tibial baseplate including:
- a plurality of force sensors to detect forces at corresponding locations of the tibial baseplate;
- and
- a plurality of actuators corresponding to the plurality of force sensors, the plurality of actuators causing the tibial baseplate to displace a femur from a tibia at respective locations;
- and
- a processor to:
- receive force information related to forces at the corresponding locations from the plurality of force sensors of the tibial baseplate;
- determine a rotation angle of the femur relative to the tibia based on the force information;
- and
- output the rotation angle for display.
A soft tissue balancing system comprising:
- a tibial baseplate including a plurality of force sensors to detect forces at corresponding locations of the tibial baseplate;
- a processor to:
- receive force information for the corresponding locations from the plurality of force sensors of the tibial baseplate;
- determine a rotation angle of a femur relative to a tibia based on the force information;
- and
- output the rotation angle for display.
A method of using a knee joint force detection system comprising:
- receiving, at processing circuitry and from a force sensor, information indicative of a force imparted by a femur and corresponding to a respective location of the femur relative to a tibia;
- determine a rotation angle of a femur relative to a tibia based on the received information;
- and
- output the rotation angle for display.
A method of using a soft tissue balancing system comprising:
- receiving, at processing circuitry, force information corresponding to respective locations from a plurality of force sensors of a tibial baseplate affixed to a tibia:
- determine a rotation angle of a femur relative to the tibia based on the force information;
- and
- output the rotation angle for display.
Dependencies are inferred from the claim text.