BODY-WORN SYSTEM FOR CONTINOUS, NONINVASIVE MEASUREMENT OF CARDIAC OUTPUT, STROKE VOLUME, CARDIAC POWER, AND BLOOD PRESSURE

摘要

The invention provides a system for measuring stroke volume (SV), cardiac output (CO), and cardiac power (CP) from a patient having: 1) an impedance sensor connected to at least two electrodes with impedance circuit that processes analog signals from the electrodes to measure an impedance signal (TBEV waveform); 2) an ECG sensor connected to at least two electrodes and including an ECG circuit that processes analog signals from the electrodes to measure and ECG signal; 3) an optical sensor connected to a optical probe and including an optical circuit that processes signals from the probe to measure at least one optical signal from the patient; 4) a processing system that analyzes the ECG, TBEV and optical signals to determine SV, typically worn on the patient's wrist and connected through a wired interface to the optical sensor, and through either a wired or wireless interface to the TBEV and ECG sensors.