Cardiac probe enabling use of personal computer for monitoring h

Details Cardiac probe enabling use of personal computer for monitoring h Cardiac probe enabling use of personal computer for monitoring h

1987-09-10

1989-08-22

Picard, Leo P.

Surgery

Truss

Pad

128710, 128712, 128731, A61B 504

Patent

active

048586170

ABSTRACT:
A compact and economical probe unit has projecting electrodes for sensing minute voltage variations at spaced apart locations on a persons skin or other surface. Internal circuits generate serial form digital signals indicative of the voltage variations for transmission to a personal computer where an electrocardiogram or other data presentation may be displayed. The probe includes a digital type of optical isolator through which the serial signals are transmitted, the output circuit of the isolator being energized by voltage taken from the computer and the input circuit being independently energized from a battery within the probe and thus there is no electrically conductive path between the computer and the electrodes. Among other uses, the probe enables unskilled persons to monitor their own heart activity as it is economical, safe and easily operated and makes use of a common computer for display rather than a costly electrocardiograph.

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Makoto Takagi, "The Electrodes-Triangle" (Date not known), Annotations, pp. 427-428.

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