Long-term monitoring for discrimination of different heart rhythms
AssigneeUniversity of Washington
InventorDavid Thor Linker
Life of this patent
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Abstract
A method, system, and device for detection of an arrhythmia, and discrimination between different types of arrhythmia, for example to determine whether to administer an electric shock to the heart, the device comprising a wearable monitor with electrodes that detect the electrical activity of a beating heart, attached to an embedded monitoring system having an amplifier, a microprocessor, a data storage device, and a power supply, all disposed on a substrate having large distal end portions that attach to the electrodes and a narrow intermediate portion that attaches to the monitoring system.
Claims22
A wearable cardiac arrhythmia monitoring and detection device comprising:
- a substrate having a first end incorporating a first electrode, a second end incorporating a second electrode, and an intermediate portion connecting the first and second ends, the intermediate portion incorporating an integrated monitoring device;
- wherein the integrated monitoring device comprises:
- (i) an amplifier configured to receive and amplify electrocardiography data from the first and second electrodes;
- (ii) a programmable microprocessor configured to receive the electrocardiography data from the amplifier and to analyze the received data;
- (iii) a data storage device configured to receive and store at least a portion of the electrocardiography data from the programmable microprocessor;
- and (iv) a power supply;
- and further
- wherein the integrated monitoring device is configured to:
- (v) determine the duration of heart beat intervals from the electrocardiography data for a selected analysis segment comprising a plurality of heart beat intervals;
- (vi) calculate an instantaneous heart rate for each of the heart beat intervals in the analysis segment;
- (vii) calculate a test result using the calculated instantaneous heart rates;
- and (viii) compare the test result with a predetermined threshold to discriminate between different types of cardiac arrhythmia.
A wearable atrial fibrillation monitoring and detection device comprising:
- a substrate having a first end incorporating a first electrode, a second end incorporating a second electrode, and an intermediate portion with an embedded monitoring system;
- wherein the embedded monitoring system comprises:
- (i) a preamplifier configured to receive electrocardiography data from the first and second electrodes;
- (ii) a microprocessor configured to receive the electrocardiography data from the amplifier and to analyze the received data;
- (iii) a data storage device configured to receive and store at least a portion of the electrocardiography data from the microprocessor;
- and (iv) a power supply;
- and further
- wherein the embedded monitoring system is configured to:
- (v) determine the duration of heart beat intervals from the electrocardiography data for an analysis segment comprising a plurality of heart beat intervals;
- (vi) calculate an instantaneous heart rate for each of the heart beat intervals in the analysis segment;
- (vii) calculate a test result using the calculated instantaneous heart rates;
- and (viii) compare the test result with a predetermined threshold to identify an atrial fibrillation event.
Dependencies are inferred from the claim text.