Patent ID: 9277868
Filing Date: 2016-03-08
CPC Classification: A61B,G01D

Claim Text:
1. A vital sign measurement device comprising: a sensor pad adapted to be placed against an anatomical location of a subject, within which is an artery; an optical sensing system comprising an optical waveguide comprising an elastomer, an optical source device to supply optical energy to a first end of the optical waveguide, and an optical detector to detect an amount of optical energy exiting the second end of optical waveguide; a waveguide support structure comprising a non-compliant surface, the waveguide support structure supporting at least a portion of the optical waveguide, wherein the optical waveguide is positioned between the sensor pad and the waveguide support structure such that pressure applied to the sensor pad causes the optical waveguide to compress between the sensor pad and the wave guide support structure such that the optical sensing system will produce a reduction of the amount of optical energy exiting the second end of the optical waveguide; and an output unit configured to receive a signal indicative of the amount of light exiting the second end of the optical waveguide and to generate a measure of the vital sign based at least in part on the received signal.