Methods and apparatuses for arrhythmia detection and classification using wireless ECG
First Claim
1. A cardiac rhythm management (CRM) system, comprising:
- an implantable medical device including;
an electrogram sensing circuit to sense an intracardiac electrogram;
a wireless electrocardiogram (ECG) sensing circuit to sense a subcutaneous ECG;
a first arrhythmia detection circuit, coupled to the electrogram sensing circuit, to detect an arrhythmia based on the intracardiac electrogram; and
an arrhythmia classification circuit, coupled to the wireless ECG sensing circuit and the arrhythmia detection circuit, to classify the detected arrhythmia based on at least the subcutaneous ECG; and
a plurality of implantable subcutaneous electrodes coupled to the wireless ECG sensing circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
A CRM system enhances intracardiac electrogram-based arrhythmia detection using a wireless electrocardiogram (ECG), which is a signal sensed with implantable electrodes and approximating a surface ECG. In one embodiment, an intracardiac electrogram allows for detection of an arrhythmia, and the wireless ECG allows for classification of the detected arrhythmia by locating its origin. In another embodiment, the wireless ECG is sensed as a substitute signal for the intracardiac electrogram when the sensing of the intracardiac electrogram becomes unreliable. In another embodiment, a cardiac signal needed for a particular purpose is selected from one or more intracardiac electrograms and one or more wireless ECGs based on a desirable signal quality. In another embodiment, intracardiac electrogram-based arrhythmia detection and wireless ECG-based arrhythmia detection confirm with each other before indicating a detection of arrhythmia of a certain type.
300 Citations
20 Claims
-
1. A cardiac rhythm management (CRM) system, comprising:
-
an implantable medical device including; an electrogram sensing circuit to sense an intracardiac electrogram; a wireless electrocardiogram (ECG) sensing circuit to sense a subcutaneous ECG; a first arrhythmia detection circuit, coupled to the electrogram sensing circuit, to detect an arrhythmia based on the intracardiac electrogram; and an arrhythmia classification circuit, coupled to the wireless ECG sensing circuit and the arrhythmia detection circuit, to classify the detected arrhythmia based on at least the subcutaneous ECG; and a plurality of implantable subcutaneous electrodes coupled to the wireless ECG sensing circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A cardiac rhythm management (CRM) system, comprising:
-
an implantable medical device having a circuit including; an electrogram sensing circuit to sense an intracardiac electrogram; a wireless electrocardiogram (ECG) sensing circuit to sense a subcutaneous ECG; a first arrhythmia detection circuit, coupled to the electrogram sensing circuit, to detect an arrhythmia based on the intracardiac electrogram; an arrhythmia classification circuit, coupled to the wireless ECG sensing circuit and the arrhythmia detection circuit, to classify the detected arrhythmia based on at least the subcutaneous ECG; and a hermetically sealed can to house the circuit of the implantable medical device; and a plurality of implantable subcutaneous electrodes coupled to the wireless ECG sensing circuit and including a can electrode including at least a conductive portion of the hermetically sealed can. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A cardiac rhythm management (CRM) system, comprising:
-
an implantable medical device having a circuit including; an electrogram sensing circuit to sense an intracardiac electrogram; a wireless electrocardiogram (ECG) sensing circuit to sense a subcutaneous ECG; a first arrhythmia detection circuit, coupled to the electrogram sensing circuit, to detect an arrhythmia based on the intracardiac electrogram; an arrhythmia classification circuit, coupled to the wireless ECG sensing circuit and the arrhythmia detection circuit, to classify the detected arrhythmia based on at least the subcutaneous ECG; a hermetically sealed can to house the circuit of the implantable medical device; and a header attached to the hermetically sealed can; and a plurality of implantable subcutaneous electrodes coupled to the wireless ECG sensing circuit and including one or more header electrodes incorporated into the header. - View Dependent Claims (19, 20)
-
Specification