Method and apparatus of non-invasive measurement of human/animal

Details Method and apparatus of non-invasive measurement of human/animal Method and apparatus of non-invasive measurement of human/animal

1999-02-03

2000-12-26

Winakur, Eric F.

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

600316, A61B 500

Patent

active

061672904

ABSTRACT:
A method and apparatus for non-invasively measuring animal/human blood glucose and other metabolites including an excitation laser source, a negative pressure based sampling port which interfaces to a human or other animal tissue sample in vivo, a Raman spectrometer, and data analysis and display devices. The device can be made in a compact size and may be portable, and it can be used in homes, offices or clinics. A negative atmospheric sampling port is made of a vacuum chamber that is connected with an electrically or manually driven vacuum pump which creates a negative air pressure inside the vacuum chamber. Under the negative air pressure, a substantial amount of blood is "sucked" into a small area of the human finger so that measurement of an enhanced Raman signal can be made.

REFERENCES:
patent: 5109849 (1992-05-01), Goodman et al.
patent: 5827181 (1998-10-01), Dias et al.

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