Design of a specialized computer for on-line monitoring of cardiac stroke volume /
by John A. Webb, Jr. and Vernon D. Gebben.

Description

Main Author

Webb, John A.

Related Names

Gebben, Vernon D.
Lewis Research Center.
United States. National Aeronautics and Space Administration.

Language(s)

English

Published

Washington, D.C. : National Aeronautics and Space Administration ; 1972.

Subjects

Patient monitoring > Patient monitoring / Data processing.
Cardiac output > Cardiac output / Data processing.

Summary

The design of a specialized analog computer for on-line determination of cardiac stroke volume by means of a modified version of the pressure pulse contour method is presented. The design consists of an analog circuit for computation and a timing circuit for detecting necessary events on the pressure waveform. Readouts of arterial pressures, systolic duration, heart rate, percent change in stroke volume, and percent change in cardiac output are provided for monitoring cardiac patients. Laboratory results showed that computational accuracy was within 3 percent, while animal experiments verified the operational capability of the computer. Patient safety considerations are also discussed.

Note

Cover title.

Physical Description

34 p. : ill. ; 27 cm.

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