Method and arrangement for blood pressure measurement

Abstract

The invention relates to a method and arrangement for blood pressure measurement. In the method, a variable compressive acting pressure is applied to a measuring point, such as a person's extremity at a compression point by a pressure generator, and at the same time the effect of the variable pressure on the artery is measured at a second point, the second point being located farther away from the heart, i.e. closer to the end point of peripheral circulation than the compression point to which the pressure is applied. In the method diastolic pressure (PDIAS) and/or systolic pressure (PSYS) is determined as a result of an actual measurement. In addition, the method further includes an estimation cycle for the actual measurement, during which the magnitude of the pressure pulse is measured by a sensor measuring a pressure pulse signal, and in the estimation one or more statistical parameters are calculated from the pressure pulse measurement data to represent the magnitude of pressure pulse variation for forecasting and/or depicting the quality of the actual blood pressure measurement.