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Apparatus and method for indicating cardiac output

Heartsine Technologies Limited (2015) Apparatus and method for indicating cardiac output. [Patent]

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Abstract

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.

Item Type:Patent
Keywords:Cardiac output, cardiac arrest, defibrillator, ICG, impedance, filters, electrodes
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:35168
Deposited By: Dr Cesar Navarro-Paredes
Deposited On:26 Jul 2016 08:32
Last Modified:26 Jul 2016 08:32

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