PERIODIC SAMPLING OF CARDIAC SIGNALS USING AN IMPLANTABLE MONITORING DEVICE
First Claim
1. A method of diagnosing an atrial fibrillation or atrial flutter condition, comprising:
- acquiring, using a monitoring device implanted in a subject, strips of a subcutaneous ECG signal of a predetermined length, wherein the strips are acquired at regular, periodic intervals, and wherein the timing of when the strips are acquired is not triggered by analysis of the subcutaneous ECG signal by the monitoring device;
storing the acquired subcutaneous ECG strips in memory of the implanted monitoring device;
transmitting the acquired subcutaneous ECG strips from the implanted monitoring device for receipt by an external analysis system; and
processing, in the external analysis system, the received subcutaneous ECG strips to generate information for an assessment of an atrial fibrillation or atrial flutter burden for the subject.
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Accused Products
Abstract
In a method of diagnosing an atrial fibrillation or atrial flutter condition, a monitoring device implanted in a subject acquires strips of a subcutaneous ECG signal of a predetermined length. The strips are acquired at regular, periodic intervals, and the timing of when the strips are acquired is not triggered by analysis of the subcutaneous ECG signal by the monitoring device. The acquired subcutaneous ECG strips are stored in memory of the implanted monitoring device, and transmitted from the implanted monitoring device for receipt by an external analysis system. In the external analysis system, the received subcutaneous ECG strips are processed to generate information for an assessment of an atrial fibrillation or atrial flutter burden for the subject.
61 Citations
19 Claims
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1. A method of diagnosing an atrial fibrillation or atrial flutter condition, comprising:
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acquiring, using a monitoring device implanted in a subject, strips of a subcutaneous ECG signal of a predetermined length, wherein the strips are acquired at regular, periodic intervals, and wherein the timing of when the strips are acquired is not triggered by analysis of the subcutaneous ECG signal by the monitoring device; storing the acquired subcutaneous ECG strips in memory of the implanted monitoring device; transmitting the acquired subcutaneous ECG strips from the implanted monitoring device for receipt by an external analysis system; and processing, in the external analysis system, the received subcutaneous ECG strips to generate information for an assessment of an atrial fibrillation or atrial flutter burden for the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable monitoring device for implantation in a subject, comprising:
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sense electrodes for sensing a subcutaneous ECG signal; circuitry that causes strips of the subcutaneous ECG signal of a predetermined length to be acquired using the sense electrodes, wherein the circuitry causes the strips to be acquired at regular, periodic intervals, and wherein the timing of when the strips are acquired is not triggered by analysis of the subcutaneous ECG signal by the implantable monitoring device; memory in which the strips of the subcutaneous ECG signal are stored; and a transmitter that transmits the acquired strips for receipt by an external analysis system and processing, in the external analysis system, the received strips to generate information for an assessment of an atrial fibrillation or atrial flutter burden for the subject. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A system for detecting atrial arrhythmia in an ambulatory subject, comprising:
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an implantable monitoring device that includes; sense electrodes for sensing a subcutaneous ECG signal; circuitry that causes strips of the subcutaneous ECG signal of a predetermined length to be acquired using the sense electrodes, wherein the circuitry causes the strips to be acquired at regular, periodic intervals, and wherein the timing of when the strips are acquired is not triggered by analysis of the subcutaneous ECG signal by the implantable monitoring device; memory in which the strips of the subcutaneous ECG signal are stored; and a transmitter that transmits the acquired strips; and a remote computing device that includes a receiver for receiving the transmitted strips, and an analysis module to generate information for an assessment of an atrial fibrillation or atrial flutter burden for the subject. - View Dependent Claims (19)
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Specification