System using green light to determine parmeters of a cardiovascular system

Authors

John Edward Scharf

Document Type

Patent

Publication Date

12-11-2001

Patent Number

63304686

Abstract

A reflectance pulse oximeter that determines oxygen saturation of hemoglobin using two sources of electromagnetic radiation in the green optical region, which provides the maximum reflectance pulsation spectrum. The use of green light allows placement of an oximetry probe at central body sites (e.g., wrist, thigh, abdomen, forehead, scalp, and back). Preferably, the two green light sources alternately emit light at 560 nm and 577 nm, respectively, which gives the biggest difference in hemoglobin extinction coefficients between deoxyhemoglobin, RHb, and oxyhemoglobin, HbO₂.

Application Number

09/185,140

Recommended Citation

Scharf, John Edward, "System using green light to determine parmeters of a cardiovascular system" (2001). USF Patents. 800.
https://digitalcommons.usf.edu/usf_patents/800

Assignees

University of South Florida

Filing Date

11/03/1998

Primary/U.S. Class

600/476