Apparatus and method for quantifying stability of the knee
AssigneeThe Regents of the University of California
InventorsFrank A. Petrigliano, Henrik Borgstrom, Keith Markolf, David R. McAllister, William Kaiser, Mahdi Ashktorab
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Abstract
A wireless motion sensor platform comprising MEMS inertial sensors and accompanying software for classification of diverse motion characteristics and kinematics of patient anatomy at high resolution. The sensor platform comprises a low-cost, compact, and low-weight device that can be applied to a patient's upper and/or lower leg during a knee examination to measure acceleration along three axes as well as rotations about these axes.
Claims30
A system for kinematic evaluation of a skeletal joint having at least one body member, comprising:
- a sensor unit comprising an accelerometer and a gyroscope;
- wherein the sensor unit is configured to attach to a first body member of the skeletal joint to acquire data with respect to the first body member;
- wherein said data comprises acceleration data from the accelerometer and rotation data from the gyroscope;
- a processor coupled to the sensor unit;
- and
- programming executable on the processor for:
- computing orientation data relating to the first body member from one or more of the acquired acceleration data and rotation data;
- and
- generating one or more metrics from the orientation data;
- the one or more metrics relating to a kinematic characteristic of the skeletal joint.
A system for kinematic evaluation of a skeletal joint having at least one body member, comprising:
- a processor;
- and
- programming executable on the processor for:
- acquiring data relating to a first body member of the skeletal joint from a sensor unit comprising an accelerometer and a gyroscope;
- wherein said data comprises acceleration data from the accelerometer and rotation data from the gyroscope;
- computing orientation data relating to the first body member from one or more of the acquired acceleration data and rotation data;
- and
- generating one or more metrics from the orientation data;
- the one or more metrics relating to a kinematic characteristic of the skeletal joint.
A method for kinematic evaluation of a skeletal joint having at least one body member, comprising:
- acquiring data relating to a first body member of the skeletal joint from a sensor unit comprising an accelerometer and a gyroscope;
- wherein said data comprises acceleration data from the accelerometer and rotation data from the gyroscope;
- computing orientation data relating to the first body member from one or more of the acquired acceleration data and rotation data;
- and
- generating one or more metrics from the orientation data;
- the one or more metrics relating to a kinematic characteristic of the skeletal joint.
Dependencies are inferred from the claim text.