Patent ID: 7212852
Filing Date: 2007-05-01
Classification: A61B

Abstract:
1. A system for measuring a voltage in a body part, the system comprising a multiplexing unit; N body leads for electrically connecting the multiplexing unit to the body part; an impedance module for generating a current and for measuring a resultant voltage, the impedance module calculating an impedance from the current and the resultant voltage; a controller switching unit electrically connecting the impedance module to the multiplexing unit, the controller switching unit having a first switch connected to the multiplexer and at least a second switch connected to the multiplexer to allow the current to flow through the body part between two body leads, n a current input lead connected to the first switch for injecting the current into the body part; a current output lead connected to the second switch for receiving the current from the body part; and a first voltage lead connected to the first switch and a second voltage lead connected to the second switch for measuring the resultant voltage.