Optical vital sign detection method and measurement device

vital sign measuring device a vital sign measuring device, including a sensor fixture device, an optical sensing system, and an output unit. the sensor fixation device is adapted to be placed against an anatomical location of an individual, within which an artery is located. the optical sensing system includes an optical source, an optical refractor, and an optical detector, which are held by the sensor holder and move with the movement of the sensor holder. the optical sensing system is positioned relative to the sensor fixture to sense movement corresponding to an arterial pulse when the sensor fixture is placed against the subject's anatomical location. the optical sensing system may sense an arterial pulse from moving, bending, or compressing at least a portion of the optical sensing system relative to other portions of the optical sensing system resulting in a change in an optical signal received by the detector optical. the output unit receives, from the optical sensing system, an input indicative of the movement corresponding to an arterial pulse and generates, using the input, a measure of the vital sign.