Paul Stanley Addison,Rui Wang,Scott McGonigle,James N. Watson
申请号：
US15702112
公开号：
US20180000360A1
申请日:
2017.09.12
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The present invention relates to physiological signal processing, and in particular to methods and systems for processing physiological signals to predict a fluid responsiveness of a patient. A medical monitor for monitoring a patient includes an input receiving a photoplethysmograph (PPG) signal representing light absorption by a patient's tissue. The monitor also includes a perfusion status indicator indicating a perfusion status of the PPG signal, and a fluid responsiveness predictor (FRP) calculator programmed to calculate an FRP value based on a respiratory variation of the PPG signal. The FRP calculator applies a correction factor based on the perfusion status indicator.
