Impedance Measurement Process
First Claim
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1. Apparatus for use in performing impedance measurements on a subject, the apparatus comprising:
- a) an electrode array having a number of electrodes configured to form a rectangular array;
b) a signal generator for generating signals to be applied to the subject using drive electrodes of the array;
c) a sensor for determining measured signals induced across the subject using measurement electrodes of the array;
d) a switching device coupled to the electrode array; and
,e) a processing system that controls the switching device to selectively interconnect the signal generator and the sensor to one or more selected electrodes, which therefore function as drive and measurement electrodes.
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Abstract
A method for use in performing impedance measurements on a subject. The method includes, in a processing system, determining at least one first impedance value, measured at a site using a first electrode configuration, determining at least one second impedance value, measured at the site using a second electrode configuration, and determining the presence, absence or degree of an anomaly using the first and second impedance values.
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22 Claims
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1. Apparatus for use in performing impedance measurements on a subject, the apparatus comprising:
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a) an electrode array having a number of electrodes configured to form a rectangular array; b) a signal generator for generating signals to be applied to the subject using drive electrodes of the array; c) a sensor for determining measured signals induced across the subject using measurement electrodes of the array; d) a switching device coupled to the electrode array; and
,e) a processing system that controls the switching device to selectively interconnect the signal generator and the sensor to one or more selected electrodes, which therefore function as drive and measurement electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification