Patent ID: 9642547
Date: 2017-05-09
CPC Classifications: A61B,A61H,A61N

Claim:
1. An apparatus for automatically determining which type of treatment is most appropriate for a cardiac arrest victim, the apparatus comprising processing circuitry configured to: transform one or more time domain ECG signals into frequency domain data, wherein the one or more time domain ECG signals being processed are from electrodes applied externally to the cardiac arrest victim and include periods of time when cardiopulmonary resuscitation (CPR) is being delivered to the cardiac arrest victim; process the frequency domain data to determine at least one peak; determine a parameter set of at least two parameters characteristic of the at least one peak, wherein the parameter set is calculated at more than two points in time, and wherein a sequence of parameter sets defines a trajectory, and wherein the trajectory is analyzed using a recursive filter to predict an estimated value for the parameter set; and determine the type of treatment based on the estimated value for the parameter set.