Passive charge recovery circuitry for an implantable medical device

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United States of America Patent

PATENT NO 10716937
APP PUB NO 20180071527A1
SERIAL NO

15695999

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Abstract

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Recovery circuitry for passively recovering charge from capacitances at electrodes in an Implantable Pulse Generator (IPG) is disclosed. The passive recovery circuitry includes passive recovery switches intervening between each electrode node and a common reference voltage, and each switch is in series with a variable resistance that may be selected based on differing use models of the IPG. The passive recovery switches may also be controlled in different modes. For example, in a first mode, the only recovery switches closed after a stimulation pulse are those associated with electrodes used to provide stimulation. In a second mode, all recovery switches are closed after a stimulation pulse, regardless of the electrodes used to provide stimulation. In a third mode, all recovery switches are closed continuously, which can provide protection when the IPG is in certain environments (e.g., MRI), and which can also be used during stimulation therapy itself.

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Patent Owner(s)

Patent OwnerAddress
BOSTON SCIENTIFIC NEUROMODULATION CORPORATION25155 RYE CANYON LOOP VALENCIA CA 91355

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Feldman, Emanuel Simi Valley, US 57 1483
Marnfeldt, Goran N Valencia, US 127 4099
Parramon, Jordi Valencia, US 179 7284

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