Greatbatch Ltd.

Gabriel A Kustra

Robert A Stevenson

James Coffed

James Kinney

An MRI-compatible electronic medical therapy system includes an active medical device connected to a plurality of electrodes. An independently actuatable switch selectively electrically connects at least one circuit protection device in electrical series with the electrodes and the medical device. The circuit protection device is adapted to permit current flow therethrough during normal medical device related therapy, but substantially prevent current flow therethrough in the presence of an induced electromagnetic field.

Independently actuatable switch for selection of an MRI compatible bandstop filter placed in series with a particular therapy electrode of an active implantable medical device

An MRI-compatible electronic medical therapy system includes an active medical device connected to a plurality of electrodes. A multiplexer circuit includes at least one circuit protection device in electrical series with the electrodes and the medical device. The circuit protection device is adapted to permit current flow therethrough during normal medical device related therapy, but substantially prevent current flow therethrough in the presence of an induced electromagnetic field.

Multiplexer for selection of an MRI compatible bandstop filter placed in series with a particular therapy electrode of an active implantable medical device

A header assembly for connecting an implantable medical device to at least one conductor lead terminating within a patient intended to be assisted by the medical device is provided. The implantable medical device is comprised of numerous feedthrough wires in a dense, non-linear, scattered format extending from the control circuitry and through a wall of the housing. The header assembly is comprised of an insulative body that is mountable on the housing of the medical device. The insulative body supports at least one conductor subassembly comprising a terminal that is directly connectable to the conductor lead, an intermediate conductor wire comprising a distal end connected to the terminal and a proximal end connected to a connector sleeve. Methods for making the header assembly and for connecting the header assembly to the implantable medical device are also disclosed.

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Cheektowaga, NY, United States of America

Gabriel A Kustra