Patent ID: 7374542

Claim:
A method of noninvasively determining a blood pressure (P) of a patient ( 2 ), in which a) an electrical cardiac potential measurement signal (EM) is detected; b) a pulse measurement signal (PM) of a pulse pressure wave which, starting from a patient's heart, propagates within blood vessels is detected at a pulse-feeling location ( 15 ); c) a propagating time (T) of the pulse pressure wave between the heart and the pulse-feeling location ( 15 ) is determined, based on the electrical measurement signal (EM) and the pulse measurement signal (PM); d) wherein the blood pressure (P) is determined from the propagating time (T) by means of a function interrelationship that comprises a first portion specifying an active elasticity behaviour of the blood vessels and a second portion specifying a passive elasticity behaviour of the blood vessels.