Compositions and Methods for Measurement of Oxygen Saturation in Blood Filled Structures

Abstract

Provided herein is technology relating to medical monitoring of physiologic parameters, and particularly, but not exclusively, relating to compositions, methods and systems for the measurement of venous and arterial oxygen saturation in the blood of blood-filled anatomical structures.

1 - 32 . (canceled) 
     
     
         33 . A method for measuring blood oxygen saturation in a blood-filled structure comprising:
 a) providing a subject;   b) providing a system comprising:
 1) at least one oximeter sensor comprising;
 i) at least two light sources of differing wavelength; 
 ii) at least one photodetector; and 
 iii) a sensor housing comprising:
 a′) a flexible tubular member; 
 b′) an optically transparent electrically isolated sheath; and 
 c′) a cable comprising at least one connector; and 
 
 
 3) a processor comprising:
 i) a controller; 
 ii) an oxygen saturation program on a computer-readable medium for analyzing a plurality of signals from said oximeter sensor configured to generate a distribution of the relative frequency of occurrence of oxygen saturations obtained within defined intervals of oxygen saturation at a plurality of predetermined averaging intervals; 
 iii) a database; and 
 iv) a display; and 
 
 c) positioning said oximeter sensor in a position adjacent to a blood-filled structure of said subject wherein said display of said distribution identifies said blood-filled structure; and 
 d) measuring said blood oxygen saturation in said blood filled structure of said subject.