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Incon-trol Corp.

Willis A Tacker, Jr

Darrell Orvin Wagner

An atrial defibrillation system monitors activity of a heart, detects atrial fibrillation, and cardioverts detected atrial fibrillation. The system includes an implantable atrial defibrillator including a plurality of operating stages for monitoring heart activity, detecting atrial fibrillation, and cardioverting atrial fibrillation, a message generator for generating messages indicative of operating stage operation status, and a transmitter to transmit the messages indicative of operating stage operating status. A nonimplantable communication device is dimensioned to be hand-held and includes a receiver for receiving the transmitted messages indicative of operating stage operation status, an addressable memory for storing a plurality of voice signals, a decoder responsive to received messages indicative of operating stage operation status for addressing selected ones of the stored voice signals, and a converter for converting the selected voice signals to audible sound.

Atrial defibrillation system including a portable audible speech

A method is provided for removing an implanted cardiac lead having a lead body and at least one conductive electrode from a mammalian body. The method includes the steps of providing an indifferent electrode, establishing electrical contact between the indifferent electrode and the body, and providing a generator of electrical energy. The method further includes the steps of coupling the generator between the conductive electrode and the indifferent electrodes and causing the generator to apply electrical energy between the conductive electrode and the indifferent electrode. The energy has a magnitude sufficient to produce gas by electrolysis between the conductive electrode and fibrotic tissue grown around the electrode. Thereafter, the lead body is pulled in an anterior direction relative to the mammalian body to remove the cardiac lead from the mammalian body.

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Redmond, WA, United States of America

Willis A Tacker, Jr