REFLECTION HEATING TYPE OXYMETER

摘要

The sensing head of an oximeter includes a light emitter and sensor which detects light scattered and reflected by a living body. The head includes a heater which surrounds the light emitter and maintains at 43 deg.C. The light detector is sensitive to two wavelengths of light. the oximeter is used for the non invasive measurement of oxygen saturation in the blood of a living body. The heater dilates the veins so that the blood is still in the arterial state.