Measuring electrical impedance or conductance of body portion:
(under subclass 300) Subject matter for measuring (a) the impedance of any part of the body to flow of electric current therethrough or (b) the readiness with which any part of the body transmits an electric current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
506, for methods and apparatus for measuring blood flow by measuring body electrical impedance.
536, for methods and apparatus for detecting breathing by measuring body electrical impedance.
SEE OR SEARCH CLASS
324, Electricity: Measuring and Testing,
600+, for impedance measuring not specifically for medical diagnosis.