Implantable cardiac device with satellite refresh

Details Implantable cardiac device with satellite refresh Implantable cardiac device with satellite refresh

2008-07-31

2011-10-04

Layno, Carl H (Department: 3766)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

Reexamination Certificate

active

08032218

ABSTRACT:
In one embodiment an implantable cardiac device is provided that includes an implantable cardiac stimulation device with an implantable satellite device coupled to it. The implantable satellite device has a charge storage device. The implantable stimulation device having a refresh generator configured to generate a charge and voltage balanced multi-phasic refresh signal with a duration less than a capacitive time constant of an electrode-electrolyte interface of the implantable cardiac device and transmit the charge and voltage balanced multi-phasic refresh signal to the implantable satellite device for charging the charge storage device. In various embodiments, the charge and voltage balanced multi-phasic refresh signal having alternating phase signs and null durations between the alternating phases. In some embodiments, the refresh generator is configured to modulate the multi-phasic waveform refresh signal. The multi-phasic waveform refresh signal may be modulated to contain configuration information, status information, or other information.

REFERENCES:
patent: 6141588 (2000-10-01), Cox
patent: 6402689 (2002-06-01), Scarantino
patent: 6963770 (2005-11-01), Scarantino
patent: 6963771 (2005-11-01), Scarantino

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