Multiple probe diagnostic apparatus with artifact reduction

A - Human Necessities – 61 – B

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A61B 5/02 (2006.01) A61B 5/04 (2006.01) A61B 5/0408 (2006.01) A61B 5/0432 (2006.01) G06F 19/00 (2006.01)

Patent

CA 1128138

MULTIPLE PROBE DIAGNOSTIC APPARATUS WITH ARTIFACT REDUCTION Abstract of the Disclosure The invention provides an improved electronic clinical apparatus. The apparatus has an array of probes positioned on or above at least one body surface of a patient. A multichannel amplifier is provided for amplifying electrical potential sensed at each of the probes. A multiplexer is connected with the amplifier at its output and an AD-converter is connected with the multiplexer at its output. An electronic computer for processing the digital outputs from the AD-converter is provided. Various and several display units are provided for displaying outputs from the computer. Control means are provided between the multiplexer and the computer for the successive read-out of the sensed potentials of the array of probes and within a variable operating period and for providing a pause period thereafter. The variable operating period added with the pause period defines a predetermined functional cycle period of approximately 2 ms. During the pause period, improper probe signals are removed and replaced by imaginary signals which are generated by interpolating valid probe signals.

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