Method of calibration for the representation of knee kinematics and harness for use therewith
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United States of America Patent
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Jan 27, 2009
Grant Date -
Jun 30, 2005
app pub date -
Dec 11, 2002
filing date -
Dec 11, 2001
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Abstract
A method for creating a frame of reference of a leg of a subject for subsequent 3-D kinematic analysis of the leg with non-invasive trackable references secured to the femur and the tibia of the leg. The method comprises the steps of: i) obtaining tibial and femoral axes with respect to the trackable references by tracking points and motions of the leg; ii) registering a known posture of the subject with respect to the trackable references; iii) obtaining a desired posture of the subject with respect to the trackable references as a function of the known posture by tracking a predetermined motion of the leg; and iv) setting a frame of reference to said tibial and femoral axes of the leg in the desired posture of the subject with respect to the trackable references.
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