A DEVICE FOR MEASURING BLOOD PRESSURE

摘要

A device for measuring blood pressure, the device comprising: a laser (4) for directing coherent light onto a patient's skin; a light receiver for receiving light scattered back from the patient's body; a sensor comprising: a photodetector (6) for receiving light from the light receiver and creating a detector signal indicative of blood flow oscillation; and an indicator for indicating blood pressure at a predetermined level of blood flow oscillation. The device further comprises a pressure cuff for compressing a portion of a patient's body. The sensor is preferably a laser Doppler sensor which measures microcirculatory blood flow in the patient's skin.