HANDLER, Jonathan,MARTUCCI, James,HOCKING, Kyle,EAGLE, Susan,BROPHY, Colleen,BOYER, Richard,BAUDENBACHER, Franz
申请号：
AU2018294354
公开号：
AU2018294354A1
申请日:
2018.06.29
申请国别(地区):
AU
年份:
2020
代理人:
摘要：
Devices, systems, and methods for filtering medical device noise artifacts from venous waveform signals are disclosed. A peripheral venous pressure (PVP) is measured and transformed from the time domain to the frequency domain for analysis to determine patient status. To avoid artifacts of the pumping, the time-domain PVP measurements are filtered to generate a filtered time-domain PVP signal by removing active pumping periods. The filtered time-domain PVP signal is transformed into a frequency-domain PVP signal, which is analyzed based upon peaks indicating respiratory rate, heart rate, or harmonics thereof. A metric of patient status is then determined from the peaks or corresponding frequencies. The patient status may be related to blood volume of the patient and may be used to control pump operation.
