BLOOD-OXYGEN MEASUREMENT AND METER

• US 3,572,995 A
• Filed: 06/05/1968
• Issued: 03/30/1971
• Est. Priority Date: 06/05/1968
• Status: Expired due to Term

• Current Assignee: Martin Billy Otis, Martin Robert Cherry
• Original Assignee: Martin Billy Otis, Martin Robert Cherry
• Inventors: MARTIN BILLY OTIS, MARTIN ROBERT CHERRY
• Application Number:
  US04/734,811
• Time in Patent Office: 1,028 Days
• US Class Current: 436/68
• CPC Class Codes: G01N 27/423 Coulometry
• CPC Class Codes: G01N 33/4925 measuring blood gas content, e.g. O2, CO2 , HCO3
• CPC Class Codes: Y10T 436/207497 Molecular oxygen

Abstract

APPARATUS AND METHOD FOR ELECTRICALLY AND QUICKLY MEASURING AND INDICATING THE AMOUNT OF OXYGEN IN BLOOD. THROUGH THIS PROCESS THE IONIZED OXYGEN IS CONVERTED TO OXYGEN ATOMS IN A BLOOD-SAMPLE SOLUTION. THE TOTAL VALUE OF THE GRADUALLY REDUCING FLOW OF THESE IONS IS DETERMINED IN A CIRCUIT BY CURRENT DIVISION, AMPLIFICATION, AND SUMMATION IN A CAPACITOR. THE FINAL RESULT IS QUICKLY SEEN ON AN INDICATOR, CALIBRATED TO READ IN VOLUME UNITS OF OXYGEN IN A PREDETERMINED AMOUNT OF TESTED BLOOD. ECONOMICALLY DISPOSABLE, QUICKLY REPLACEABLE ELECTRODES ARE POSITIONED IN THE IONIZED SOLUTION. TO PREVENT ADHERENCE OF EFFICIENCYDESTROYING, BLOOD PARTICLES ON THEM THEY ARE VIBRATED BY AN ULTRASONIC GENERATOR.

Claims