Peak Detection System and Method for Calculation of Signal-Derived Metrics

A method for providing a beat determination based on signals from a plurality of medical sensors attached to one patient in substantially real time, said method comprising:

• receiving in at least two analysis modules at least one signal from at least one medical sensor, wherein the signal includes at least one of an ECG signal and a pulse signal such that at least one analysis module receives the one ECG signal and at least one analysis module receives the one pulse signal;
• in each analysis module
• processing the one signal through a plurality of detection algorithm modules with each detection algorithm module producing at least one quantitative decision,
• fusing the quantitative decisions from the detection algorithm modules together with a fusion module, and
• outputting at least one detected peak from the fusion module to an aggregation module in communication with the at least two analysis modules;
• and
• producing from the aggregation module a series of detected peaks representing heartbeats of the patient based on a series of detected peaks received from the analysis module having a highest beat signal quality index for each analysis module with the analysis module with the highest best signal quality index being selected to supply the detected peaks for output by the aggregation module, and
• wherein the beat signal quality index equals the beats detected by that analysis module over a predetermined time period divided by an average of the total number of beats detected by all of the analysis modules over the predetermined time period.

A computer program product for detecting peaks in a plurality of biomedical signals, the computer program product comprising:

• a computer readable storage medium having encoded thereon:
• first program instructions executable by a processor to cause the processer to receive a plurality of biomedical signals originating from a plurality of medical sensors;
• second program instructions executable by a processor to cause the processer to assign each signal to a particular analysis module based on a type of signal that the signal is;
• third program instructions executable by a processor to cause the processer to use each analysis module to analyze one signal with a plurality of algorithms;
• fourth program instructions executable by a processor to cause the processer to use each analysis module to fuse the outputs of the plurality of algorithms to provide an output;
• fifth program instructions executable by a processor to cause the processer to select the highest quality output from the plurality of analysis modules;
• and
• sixth program instructions executable by a processor to cause the processer to use the selected output to determine at least one of heart rate complexity and heart rate variability.