Molecular physiological monitoring system

• US 3,212,496 A
• Filed: 08/21/1962
• Issued: 10/19/1965
• Est. Priority Date: 08/21/1962
• Status: Expired due to Term

• Current Assignee: Richard J. Preston
• Original Assignee: Richard J. Preston
• Inventors: Preston, Richard J.
• Application Number:
  US04/218,265
• Time in Patent Office: 1,155 Days
• US Class Current: 600/484
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/0245 by using sensing means generating electric signals, i.e. ECG signals
• CPC Class Codes: A61B 5/07 Endoradiosondes
• CPC Class Codes: A61B 5/0809 by impedance pneumography
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: Y10S 128/903 Radio telemetry

Claims

1. A PHYSIOLOGICAL MEASURING APPARATUS FOR SIMULTANEOUSLY MEASURING THE HEART RATE, RESPIRATION RATE AND RESPIRATION VOLUME OF A LIVING BODY COMPRISING A PAIR OF ELECTRODES IMPERVIOUS TO BODY FLUIDS, MEANS FOR POSITIONING SAID PAIR OF ELECTRODES IN CONTACT WITH A LIVING BODY ADJACENT THE HEART AREA THEREOF, MEANS FOR GENERATING A D.C. CURRENT FLOW THROUGH THE PORTION OF THE BODY BETWEEN SAID ELECTRODES AND PRODUCING A FIRST VOLTAGE BETWEEN SAID ELECTRODES AS A FUNCTION OF THE BODY IMPEDANCE THEREBETWEEN, SAID ELECTRONICS ALSO SENSING THE VOLTAGE PRODUCED BY THE BEATING OF THE HEART OF SAID BODY WHEREBY A SECOND VOLTAGE PROPORTIONAL THERETO IS PRODUCED BETWEEN SAID ELECTRODES, AN AMPLIFIER HAVING A PAIR OF INPUT TERMINALS, AND MEANS ELECTRICALLY CONNECTING SAID ELECTRODES WITH SAID AMPLIFIER INPUT TERMINALS WHEREBY SAID AMPLIFIER PRODUCES AN OUTPUT VOLTAGE HAVING A COMPONENT PROPORTIONAL TO SAID FIRST VOLTAGE PRODUCED BY IMPEDANCE CHANGES IN THE PORTION OF THE BODY BETWEEN SAID ELECTRODES AND INDICATIVE OF BODY RESPIRATION RATE AND VOLUME, AND HAVING A COMPONENT PROPORTIONAL TO SAID SECOND VOLTAGE PRODUCED BY THE HEARTBEAT AND INDICATIVE OF BODY HEART RATE.