Patent ID: 6463319
Filing Date: 2002-10-08
Classification: A61B,B82Y

Abstract:
A system for determining the position of a body part, the system comprising:a base fixed in relation to a body part; a light source positionable to direct light at the base and a surface of the body part; an array of sensors located remotely from the body part and positioned to receive light reflected from the base and the surface of the body part; a processor in communication with the array, the processor is configured to determine the position of the body part relative to the array based on the light reflected to the array; an additional array of sensors; and base reference points fixed relative to the base, the base reference points in communication with the additional array of sensors, wherein the processor is in communication with the additional array of sensors and the position of base is known based on the communication between the base reference points and the additional array of sensors.