A blood pressure monitor including a cuff, a pressure sensor which detects a pressure in the cuff, a pressure regulating device which increases the pressure of the cuff, a pulse-amplitude determining device for determining an amplitude of each of pulses of a pulse wave which are produced in the cuff...http://www.google.es/patents/US6527726?utm_source=gb-gplus-sharePatente US6527726 - Blood pressure monitor
