Optical non-invasive blood monitoring system and method

Details Optical non-invasive blood monitoring system and method Optical non-invasive blood monitoring system and method

2006-07-25

2009-02-03

Winakur, Eric F (Department: 3768)

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

C600S316000

Reexamination Certificate

active

07486976

ABSTRACT:
A simple noninvasive technique that is capable of very accurate and fast blood analyte, e.g., glucose, level monitoring is provided. Fluctuation in the levels of glucose and other analytes affect the refractive index of blood and extra cellular fluid in biological tissue. Given that the propagation speed of light through a medium depends on its refractive index, continuous monitoring of analyte levels in tissue is achieved by measuring characteristics of the tissue that can be correlated to the refractive index of the tissue. For instance, the frequency or number of optical pulse revelations that are transmitted through an individual's tissue of known thickness within a certain time period can be correlated to an individual's blood glucose level.

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