Inventors:
Sami Kanderian - Northbridge CA, US
Randal Goldberg - Mountain View CA, US
Katrina Obell - Ann Arbor MI, US
Barbara de Lateur - Baltimore MD, US
Louis Whitcomb - Baltimore MD, US
Fred Lenz - Baltimore MD, US
International Classification:
A61B005/103, A61B005/117
Abstract:
A method and device for the quantification of muscle tone, particularly the wrist, wherein non-sinusoidal and non ramp trajectories are used to drive the wrist. Equation 1 is utilized determine the stiffness, viscosity and inertial parameters. wherein where is the total torque, is the offset torque, Kand Bare the angular stiffness and viscosity of the combined flexor and extensor muscle groups that act on the joint, Jis the combined inertia of the oscillating appendage, is the angular displacement of the system, and
are the velocity and acceleration. In accordance with the method, the trajectory (t) is controlled, the torque response (t) is measured and the stiffness, viscosity, and inertial parameters are determined using Equation 1. The method and device are particularly suitable for use on patients with spacisityf