System and method for determining native cardiac output while continuing support to the heart with a catheter-mounted intracardiac blood pump having an imbedded thermistor
Abiomed, Inc.;Icahn School of Medicine at Mount Sinai
发明人:
Curran, Jerald Wayne,Ishikawa, Kiyotake,Hajjar, Roger J.
申请号：
AU2018239421
公开号：
AU2018239421A1
申请日:
2018.03.21
申请国别(地区):
AU
年份:
2019
代理人:
摘要：
A system and method for determining native cardiac output of a heart while maintaining operation of an intracardiac blood pump includes determining a current drawn by the pump motor, a blood pressure within the ascending aorta, and a change in the blood temperature based on a thermodilution technique. An intracardiac blood pump positioned in the aorta includes at least one sensor for determining a motor current and blood pressure and a thermistor for determining the change in blood temperature after a precise fluid bolus has been introduced into the vasculature. A processor receives current, pressure, and temperature measurements, and calculates a pump flow output and a total cardiac output from which the native cardiac output is calculated. The native cardiac output and other clinically relevant variables derived from the measurements inform decisions related to continued therapeutic care, including increasing or decreasing cardiac assistance provided by the intracardiac pump.
