Impedance cardiograph apparatus and method

Details Impedance cardiograph apparatus and method Impedance cardiograph apparatus and method

1994-07-07

1996-04-09

Sykes, Angela D.

Surgery

Truss

Pad

128668, 128713, A61B 500

Patent

active

055052096

ABSTRACT:
An impedance cardiograph which determines cardiac output from a measurement of variations of chest impedance, provides an improved method of calculating the effect of patient volume on the measurement from measurable patient height and chest circumference, and provides a correction process that identifies as a source of error variations in the first derivative of impedance. This latter source of error is minimized by preprocessing the impedance derivative value with a compression function which reduces the range of values of the impedance derivative when that value differs significantly from a norm of the population.

REFERENCES:
patent: 3340867 (1967-09-01), Kubicek et al.
patent: 4450527 (1984-05-01), Sramek
patent: 4676253 (1987-06-01), Newman et al.
patent: 4807638 (1989-02-01), Sramek
patent: 5178154 (1993-01-01), Ackmann et al.
patent: 5265615 (1993-11-01), Frank et al.
patent: 5309917 (1994-05-01), Wang et al.
patent: 5316004 (1994-05-01), Chesney et al.
Uber ein neues Verfahren zur Darstellung der Herztatigkeit (Dielektrographie), by Edgar Atzler et al. German article with attached summary and translation.
Protecting Medical Devices from Radio-Frequency Interference, by William D. Kimmel et al., Medical Device & Diagnostic Industry, Circle Reader Service #52, pp. 68-78.
Cardiac Output by Electrical Impedance, by B. Bo Sramek, Apr. 1982.
Development and Evaluation of an Impedance Cardiac Output System, by W. G. Kubicek, Ph.D. et al., Aerospace Medicine, Dec. 1966.

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