Wearable ambulatory medical device with multiple sensing electrodes
First Claim
1. An ambulatory medical device, comprising:
- a garment to be worn about a body of a patient;
a plurality of electrodes configured to be attached to the garment and disposed at spaced apart positions about the body of the patient;
an electrode signal acquisition circuit having a plurality of inputs, each respective input of the plurality of inputs being electrically coupled to a respective electrode of the plurality of electrodes, the electrode signal acquisition circuit being configured to sense a respective signal provided by each of a plurality of different pairings of the plurality of electrodes; and
a monitoring circuit, electrically coupled to an output of the electrode signal acquisition circuit, the monitoring circuit being configured to analyze the respective signal provided by each of the plurality of different pairings and to instruct the electrode signal acquisition circuit to select at least one of the plurality of different pairings to monitor based upon at least two of a quality of the respective signal provided by the selected at least one of the plurality of different pairings, a phase difference between the respective signal provided by the selected at least one of the plurality of different pairings and the respective signal provided by another selected at least one of the plurality of different pairings, a position of the respective electrodes of the selected at least one of the plurality of different pairings relative to the body of the patient, and a plane defined by the respective electrodes of the selected at least one of the plurality of different pairings.
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Accused Products
Abstract
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.
131 Citations
23 Claims
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1. An ambulatory medical device, comprising:
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a garment to be worn about a body of a patient; a plurality of electrodes configured to be attached to the garment and disposed at spaced apart positions about the body of the patient; an electrode signal acquisition circuit having a plurality of inputs, each respective input of the plurality of inputs being electrically coupled to a respective electrode of the plurality of electrodes, the electrode signal acquisition circuit being configured to sense a respective signal provided by each of a plurality of different pairings of the plurality of electrodes; and a monitoring circuit, electrically coupled to an output of the electrode signal acquisition circuit, the monitoring circuit being configured to analyze the respective signal provided by each of the plurality of different pairings and to instruct the electrode signal acquisition circuit to select at least one of the plurality of different pairings to monitor based upon at least two of a quality of the respective signal provided by the selected at least one of the plurality of different pairings, a phase difference between the respective signal provided by the selected at least one of the plurality of different pairings and the respective signal provided by another selected at least one of the plurality of different pairings, a position of the respective electrodes of the selected at least one of the plurality of different pairings relative to the body of the patient, and a plane defined by the respective electrodes of the selected at least one of the plurality of different pairings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13)
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12. A method of monitoring ECG signals, the method comprising acts of:
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selecting, from among a plurality of ECG sensors attached to a garment configured to be worn about a body of a patient, a plurality of different pairings of ECG sensors; analyzing a respective ECG signal provided by each of the plurality of different pairings; identifying at least one of the plurality of different pairings to monitor based upon at least two of a quality of the respective ECG signal provided by the identified at least one of the plurality of different pairings, a phase difference between the respective ECG signal provided by the identified at least one of the plurality of different pairings and the respective ECG signal provided by another identified at least one of the plurality of different pairings, a position of respective ECG sensors of the identified at least one of the plurality of different pairings relative to the body of the patient, and a plane defined by the respective ECG sensors of the identified at least one of the plurality of different pairings; and monitoring the identified at least one of the plurality of different pairings. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification