WEARABLE AMBULATORY MEDICAL DEVICE WITH MULTIPLE SENSING ELECTRODES

摘要

An ambulatory medical device including a plurality of electrodes configured to be disposed at spaced apart positions about a patient's body, an electrode signal acquisition circuit, and a monitoring circuit. The acquisition circuit has a plurality of inputs each electrically coupled to a respective electrode of the plurality of electrodes and is configured to sense a respective signal provided by a plurality of different pairings of the plurality of electrodes. The monitoring circuit is electrically coupled to an output of the acquisition circuit and is configured to analyze the respective signal provided by each of the plurality of different pairings and to instruct the acquisition circuit to select at least one of the plurality of different pairings to monitor based on at least one of the quality of the respective signal, a phase difference between the respective signal and that of other pairings, a position of electrodes relative to the patient's body, and other criteria.

主权项

1. A wearable monitoring device, comprising:
at least two ECG channels corresponding to different pairings of a plurality of ECG sensing electrodes, wherein the plurality of ECG sensing electrodes are configured to be disposed at spaced apart positions about a body of a patient; at least one activity sensor configured to monitor a physical activity of the patient; an electrode signal acquisition circuit configured to be electrically coupled to the plurality of ECG sensing electrodes of the at least two ECG channels and configured to sense respective signals provided by the at least two ECG channels; and a monitoring and detection circuit electrically coupled to an output of the electrode signal acquisition circuit, the monitoring and detection circuit including at least one processor configured to
instruct the electrode signal acquisition circuit to analyze the respective signals provided by the at least two ECG channels,select one or more of the at least two ECG channels to monitor based on analysis of the respective signals provided by the at least two ECG channels and the monitored physical activity of the patient, anddetermine a presence of an arrhythmia condition based on the respective signals from the selected one or more of the at least two ECG channels.