Surgery – Truss – Pad
Patent
1993-04-08
1994-10-25
Howell, Kyle L.
Surgery
Truss
Pad
36441303, 36441305, A61B 5024
Patent
active
053579704
ABSTRACT:
A method for determining a dominant heart rate from a series of beat triggers representative of a mixed series of normal heart beats and non-arrhythmic activities, with the beat triggers being determined at a specific sampling rate defining sample intervals, comprising the steps of: framing a window to include a portion of the series of beat triggers and to be beat-aligned with a first beat trigger and a last beat trigger, the window thereby defining a plurality of trigger intervals for respective adjacent beat triggers, with each trigger interval containing a plurality of the sample intervals existing between the respective adjacent beat triggers; summing the windowed sample intervals; for each of the trigger intervals, computing a weight factor based upon the ratio of the summed windowed sample intervals to the number of sample intervals within that trigger interval; grouping the trigger intervals according to the weight factors; computing the percentage of the window that each group of weight factors constitutes to determine the dominant group containing the dominant beat triggers; and analyzing the dominant beat triggers within the dominant group to determine the dominant heart rate.
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Critikon Inc.
Howell Kyle L.
Schaetzle Kennedy J.
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