Transcutaneous measurement of substance in body tissues or fluid

Details Transcutaneous measurement of substance in body tissues or fluid Transcutaneous measurement of substance in body tissues or fluid

1998-05-15

2000-07-11

Kim, Robert H.

Optics: measuring and testing

Blood analysis

600473, G01N 3348

Patent

active

060880872

ABSTRACT:
An apparatus and method for transcutaneous measurement of a substance within a body. Transcutaneous measurement of substances within a subjects' tissues or fluids is effected through the use of the present invention. A light source, focused by an optical system, directs light towards a subject. Light returning from the subject as a result of this illumination, is collected, focused and directed to a detection system. The output of this detection system can then be analyzed to determine the concentration of the substance being measured. In a preferred embodiment bilirubin is measured. However, the measurement of substances such as oxygen, carbon dioxide, glucose, albumin, hemoglobin and cholesterol, among others, is also contemplated.

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