Patent ID: 11969252
Assignee: TRIVIRUM, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 0:
1. A body-worn ECG monitor, comprising:
at least one ECG lead configured be worn on the body of an individual and to measure electrical signals indicative of electrical activity of the individual's cardiac cycle on a continuous basis and generate therefrom an analog waveform;
sensor electronics comprising an analog-to-digital converter operably connected to the at least one ECG lead to receive the analog waveform or a frequency-filtered form thereof and to generate therefrom a digital waveform;
a processing component operably connected to the sensor electronics and configured to receive the digital waveform and to continuously monitor the digital waveform for changes in cardiac rhythm indicative of a transient arrhythmic event by
(i) storing a segment of the digital waveform in a circular data buffer, wherein the stored segment contains digital data for the current cardiac cycle and a plurality of consecutive previous cardiac cycles, and wherein the stored segment is of time length bi and is continuously updated for new cardiac cycles,
(ii) processing the digital waveform on a beat-by-beat basis to identify an occurrence of a first rhythm transition from a normal cardiac rhythm to an arrhythmia,
(iii) upon identifying the first rhythm transition, initiating storage of data from the data buffer into a storage memory beginning from a point in the data preceding the first rhythm transition by a predetermined time length l2, and ending the storage of data at a predetermined time length l3 following the first rhythm transition;
(iv) following the first rhythm transition, processing the digital waveform on a beat-by-beat basis to identify an occurrence of a second rhythm transition from the arrhythmia to a normal cardiac rhythm;
(v) upon identifying the second rhythm transition, initiating storage of data from the data buffer into a storage memory beginning from a point in the data preceding the second rhythm transition by a predetermined time length l4 and ending the storage of data at a predetermined time length l5 following the second rhythm transition; and
(vi) repeating steps (ii)-(vi).