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US 10,863,995 B2Granted
Soft tissue measurement and balancing systems and methods
AssigneeOrthAlign, Inc.
InventorsJonathan Nielsen, Matthew Yacono
Life of this patent
Estimating the term…
Abstract
Systems and methods for joint replacement are provided. The systems and methods can include a surgical orientation device and/or a reference sensor device. The surgical orientation device and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, to distract a joint, to measure an angle, to orient a cutting guide, to orient a resection guide, to resect the femur, or to otherwise assist in an orthopedic procedure or procedures.
Claims19
An orthopedic system for orienting a cutting plane during a joint replacement procedure comprising:
- a tibial member configured to contact a tibia while distracting a joint;
- a femoral member configured to contact to a femur while distracting the joint;
- an adjustment device coupling the tibial member and the femoral member while distracting the joint, the adjustment device enabling at least one degree of freedom between the tibial member and the femoral member;
- a surgical orientation device coupled or configured to couple to one of the tibial member or the femoral member, the surgical orientation device comprising:
- a housing,
- an inertial sensor configured to monitor the orientation of the surgical orientation device in a three-dimensional coordinate reference system while distracting the joint,
- a user interface comprising a display screen configured to display a measurement related to distracting the joint;
- and
- a reference sensor device coupled or configured to couple to the other of the tibial member or the femoral member, the reference sensor device comprising:
- a housing, and
- an inertial sensor configured to monitor the orientation of the reference sensor device while distracting the joint,
- wherein the surgical orientation device and the reference sensor device are configured to determine an angle between the tibial member and the femoral member while distracting the joint.
9 more elements
An orthopedic orientation system, for use in a joint procedure, comprising:
- a tibial member configured to contact a tibia while distracting a joint;
- a femoral member configured to contact to a femur while distracting the joint;
- an adjustment device enabling at least one degree of freedom of the femoral member relative to the tibial member when the tibial member is in a fixed position and orientation relative to the tibia;
- the adjustment device enabling at least one additional and different degree of freedom of the femoral member relative to the tibial member when the tibial member is in a fixed position and orientation relative to the tibia;
- a first orientation device configured to be coupled to the femoral member, the first orientation device comprising:
- a first sensor located within a first housing, the first sensor configured to monitor the position and/or orientation of the femoral member, and
- a display configured to inform a user of the position and/or orientation of the femoral member;
- a second orientation device configured to be coupled to the tibial member, the second orientation device comprising a second sensor located within a second housing, the second sensor configured to monitor the position and/or orientation of the tibial member,
- wherein the first orientation device and the second orientation device are configured to calculate the distraction distance between the tibial member and the femoral member.
6 more elements
An orthopedic system for orienting a cutting plane during a joint replacement procedure comprising:
- a tibial member configured to contact a tibia while distracting a joint;
- a femoral member configured to contact a femur while distracting the joint;
- a guide coupled to the tibial member;
- a surgical orientation device coupled or configured to couple to one of the tibial member or the femoral member, the surgical orientation device comprising:
- a housing,
- an inertial sensor configured to monitor the orientation of the surgical orientation device in a three-dimensional coordinate reference system while distracting the joint,
- a user interface comprising a display screen configured to display a measurement related to femur rotation;
- and
- a reference sensor device coupled or configured to couple to the other of the tibial member or the femoral member, the reference sensor device comprising:
- a housing, and
- an inertial sensor configured to monitor the orientation of the reference sensor device while distracting the joint,
- wherein the surgical orientation device and the reference sensor device are configured to calculate femur rotation relative to the tibia.
9 more elements
Dependencies are inferred from the claim text.