04270547 is referenced by 161 patents and cites 5 patents.

A system is disclosed for monitoring vital physiological signs. Each of the system components utilizes a single hybrid circuit with each component having high accuracy without the necessity of repeated calibration. The system also has low power requirements, provides a digital display, and is of sufficiently small size to be incorporated into a hand-carried case for portable use. Components of the system may also provide independent outputs making the component useful, of itself, for monitoring one or more vital signs. The overall system preferably includes an ECG amplifier and cardiotachometer signal conditioner unit, an impedance pneumograph and respiration rate signal conditioner unit, a heart/breath rate processor unit, a temperature monitoring unit, a selector switch, a clock unit, and an LCD driver unit and associated LCDs, with the system being capable of being expanded as needed or desired, such as, for example, by addition of a systolic/diastolic blood pressure unit.

Title
Vital signs monitoring system
Application Number
5/948139
Publication Number
4270547
Application Date
October 3, 1978
Publication Date
June 2, 1981
Inventor
George A Rinard
Denver
CO, US
Ronald E Sturm
Denver
CO, US
Dale A Steffen
Aurora
CO, US
Agent
O Rourke & Harris
Assignee
University Patents
CT, US
IPC
A61B 5/02
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