Continuous Blood Pressure Measurement

Abstract

We disclose a system and method for estimating values of hemodynamic parameters of a subject, by calibrating arterial pressure during one time and tracking arterial pressure at another time.

1 - 23 . (canceled) 
     
     
         24 . A system for estimating values of hemodynamic parameters of a subject, comprising:
 a processing system comprising a processing unit and memory;   wherein the processing system is designed to receive tracking sensor data from a tracking sensor;   wherein the processing system is designed to calculate estimated hemodynamic values of a hemodynamic parameter at two or more time instances, based upon:   one or more outputs of a DFT of tracking sensor data relating to the arterial pressure, which tracking sensor data was obtained from the subject during a first tracking time period;   one or more outputs of a DFT of tracking sensor data relating to the arterial pressure, which tracking sensor data was obtained from the subject during a second tracking time period;   wherein the first tracking time period and the second tracking time period do not overlap in time; and   wherein the processing system is designed to display, store or transmit data relating to the estimated hemodynamic values.   
     
     
         25 - 27 . (canceled) 
     
     
         28 . A method for estimating values of hemodynamic parameters of a subject, comprising using a processing system comprising a processing unit and memory, comprising:
 receiving tracking sensor data from a tracking sensor in the processing system;   the processing system calculating estimated hemodynamic values of a hemodynamic parameter at two or more time instances, based upon:   one or more outputs of a DFT of tracking sensor data relating to the arterial pressure, which tracking sensor data was obtained from the subject during a first tracking time period;   one or more outputs of a DFT of tracking sensor data relating to the arterial pressure, which tracking sensor data was obtained from the subject during a second tracking time period;   wherein the first tracking time period and the second tracking time period do not overlap in time; and   the processing system displaying, storing, or transmitting data relating to the estimated hemodynamic values.