APPARATUS AND METHODS TO ASSESS SUB-SURFACE TISSUE PROPERTIES

Abstract

Absorption spectrophotometers are described herein. The absorption spectrophotometer comprises an illumination source and first and second spectrophotometers. The illumination source provides light to a point-of-illumination on a surface of a medium having a first layer and a second layer. The first spectrophotometer has an optical element and a first sensor. The optical element collects first reflected light passing through the first layer and emitted from the surface. The first sensor measures intensity of the first reflected light. The second spectrophotometer comprises a shroud, a center blocking module, and a second sensor. The center blocking module is supported within the shroud, forms a gap, and blocks first reflected light passing through the first layer emitted from the surface. The gap is sized and shaped to pass second reflected light passing through the deeper tissue and emitted from the surface. The second sensor measures intensity of the second reflected light.

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