US 6,983,177 B2
Layered spectroscopic sample element with microporous membrane
Peter Rule, Los Altos Hills, Calif. (US); James R. Braig, Piedmont, Calif. (US); and Philip C. Hartstein, Palo Alto, Calif. (US)
Assigned to Optiscan Biomedical Corporation, Alameda, Calif. (US)
Filed on Jan. 06, 2003, as Appl. No. 10/337,226.
Prior Publication US 2004/0133084 A1, Jul. 08, 2004
Int. Cl. A61B 5/00 (2006.01)
U.S. Cl. 600—310 115 Claims
OG exemplary drawing
 
61. A method comprising:
providing a microporous sheet disposed between first and second support members, such that at least a portion of the microporous sheet is left exposed;
contacting the exposed portion of the microporous sheet with a material sample such that at least a portion of the material sample is drawn into the microporous sheet;
transmitting electromagnetic radiation through the material sample in the microporous sheet;
piercing a patient's skin with a skin-piercing structure, the skin-piercing structure having a passageway that connects a distal portion of the skin-piercing structure with the exposed portion of the microporous sheet; and
analyzing the electromagnetic radiation transmitted through the material sample in a spectral region of interest.