Wireless ECG in implantable devices
First Claim
1. A method for acquiring a signal approximating a surface electrocardiogram (ECG) using an implantable medical device, the method comprising:
- receiving an ECG acquisition command using a command receiver of the implantable medical device;
programming a pass band of a sensing circuit of the implantable medical device, the sensing circuit programmable for at least a surface ECG pass band and an intracardiac electrogram pass band, the programming the pass band caused by a processor of the implantable medical device in response to the ECG acquisition command and including programming the pass band to the surface ECG pass band;
programming a sense interface of the implantable medical device to electrically connect at least two implantable electrodes to the sensing circuit, the programming the sense interface caused by the processor of the implantable medical device in response to the ECG acquisition command; and
sensing a cardiac signal after the pass band of the sensing circuit and the sense interface are programmed in response to the ECG acquisition command.
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Abstract
An implantable medical device such as an implantable pacemaker or implantable cardioverter/defibrillator includes a programmable sensing circuit providing for sensing of a signal approximating a surface electrocardiogram (ECG) through implanted electrodes. With various electrode configurations, signals approximating various standard surface ECG signals are acquired without the need for attaching electrodes with cables onto the skin. The various electrode configurations include, but are not limited to, various combinations of intracardiac pacing electrodes, portions of the implantable medical device contacting tissue, and electrodes incorporated onto the surface of the implantable medical device.
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Citations
20 Claims
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1. A method for acquiring a signal approximating a surface electrocardiogram (ECG) using an implantable medical device, the method comprising:
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receiving an ECG acquisition command using a command receiver of the implantable medical device; programming a pass band of a sensing circuit of the implantable medical device, the sensing circuit programmable for at least a surface ECG pass band and an intracardiac electrogram pass band, the programming the pass band caused by a processor of the implantable medical device in response to the ECG acquisition command and including programming the pass band to the surface ECG pass band; programming a sense interface of the implantable medical device to electrically connect at least two implantable electrodes to the sensing circuit, the programming the sense interface caused by the processor of the implantable medical device in response to the ECG acquisition command; and sensing a cardiac signal after the pass band of the sensing circuit and the sense interface are programmed in response to the ECG acquisition command. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification