CPC A61B 5/332 (2021.01) [A61B 5/02405 (2013.01); A61B 5/282 (2021.01); A61B 5/33 (2021.01); A61B 5/346 (2021.01); A61B 5/352 (2021.01); A61B 5/361 (2021.01); A61B 5/366 (2021.01); A61B 5/7221 (2013.01)] | 10 Claims |
1. An ambulatory medical device for monitoring a patient's cardiac activity using a digital front-end, the ambulatory medical device comprising:
a plurality of sensing electrodes, each comprising an electrode housing, and each configured to be coupled externally to a patient and to detect one or more ECG signals of the patient;
a plurality of electrode-specific digital signal circuitries, each configured to be disposed within a corresponding one of the electrode housings, wherein each of the electrode-specific digital signal circuitries is configured to provide an electrode-specific digital signal; and
one or more processors operably coupled to the plurality of sensing electrodes and being configured to
receive the electrode-specific digital signal for each of the plurality of sensing electrodes,
filter the electrode-specific digital signal for each of the plurality of sensing electrodes to determine a noise component for each of the electrode-specific digital signals,
analyze each of the noise components for each of the plurality of sensing electrodes to identify a particular one of the sensing electrodes with a physically compromised connection with the patient,
ignore the particular one of the sensing electrodes with the physically compromised connection with the patient, thereby resulting in a reduced set of sensing electrodes,
generate electrode matching information for each sensing electrode of the reduced set of sensing electrodes based upon analysis of each of the noise components,
determine one or more sensing electrode pairs based upon the electrode matching information, and
monitor each of the one or more sensing electrode pairs for ECG activity of the patient.
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