Fan Phuong Xu

US Patent:

6882873, Apr 19, 2005

Filed:

Nov 26, 2002

Appl. No.:

10/303832

Inventors:

Mark A. Samuels - Norcross GA, US
Keith D. Ignotz - Duluth GA, US
Gregory J. Newman - Atlanta GA, US
Jonathan A. Eppstein - Atlanta GA, US
Fan Xu - Lawrenceville GA, US

Assignee:

Respironics, Inc. - Murrysville PA

International Classification:

A61B005/00

US Classification:

600315, 600322

Abstract:

A system and method embodying the invention can be used to detect a characteristic or condition of a patient. A method embodying the invention may include the steps of illuminating a portion of a skin of the patient with light, detecting a frequency spectrum of light scattered from the skin, determining, from first and second portions of the spectrum, a first parameter indicative of a blood content of the skin and a second parameter indicative of a melanin content of the skin, determining, from a third portion of the spectrum, a third parameter indicative of an uncorrected bilirubin concentration, and calculating a corrected bilirubin concentration based on the first, second and third parameters.