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An apparatus and method for indicating cardiac output
专利权人:
HEARTSINE TECHNOLOGIES LIMITED
发明人:
Navarro-Paredes, Cesar Oswaldo,Dimaio, Rebecca,Anderson, John McCune
申请号:
AU2009221154
公开号:
AU2009221154B2
申请日:
2009.03.04
申请国别(地区):
AU
年份:
2015
代理人:
摘要:
An apparatus for indicating cardiac output comprises means for monitoring a patient's transthoracic impedance and generating a corresponding impedance signal, and signal processing means for (a) deriving a signal S1 which is a measure of the average amplitude of the impedance signal, (b) filtering the impedance signal at a plurality of different wavelengths within a predetermined frequency band, (c) for each filter deriving a signal S2 which is a measure of the average amplitude of the respective filter output, (d) calculating the ratio of the maximum one of the signals S2 derived from step (c) to the signal S1 derived from step (a), and (e) using the ratio from step (d) in a decision tree to provide a signal indicating cardiac output or not.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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