METHODS AND APPARATUS FOR DETECTING MISAPPLIED OPTICAL SENSORS

摘要

Methods and apparatus are described for sensing misplacement of an optical sensor on a patient. A wavelength of light which is particularly subject to absorption by a physiological characteristic of interest is used to compare to a reference to determine if the sensor placement is appropriate, such as to generate accurate readings. In one example, the intensity of a wavelength of light which is subject to absorption by bulk tissue, but less subject to absorption by oxygen in the blood will be detected to evaluate the placement of the sensor.