A CONTACTLESS SYSTEM AND METHOD FOR ASSESSING TISSUE VIABILITY AND OTHER HEMODYNAMIC PARAMETERS

摘要

A contactless system for assessing tissue viability and other hemodynamic parameters includes one or more light sources configured to emit lights at a predetermined wavelength sensitive to hemoglobin concentration associated with spontaneous hemodynamic oscillations at tissue in a predetermined area of a human subject. One or more polarizers are each coupled to one or more of the light sources and are configured to polarize the light to a polarized stale such that the polarized light in the polarized state diffuses into the tissue in the predetermined area at a predetermined depth and the polarized light is maintained in the polarized state at the predetermined depth. One or more detectors, each including a detector polarizer coupled thereto are configured to discriminate the light maintained in the polarized state and at the predetermined depth, are configured to generate a plurality of frames of the tissue in the predetermined area at the predetermined depth.