Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2007-05-31
2010-12-21
Patel, Niketa I (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
Reexamination Certificate
active
07856266
ABSTRACT:
An implantable cardiac defibrillation device provides pre-shock stimuli to reduce the defibrillation threshold (DFT). The device includes an arrhythmia detector that detects fibrillation of a fibrillating chamber of a heart and a pulse generator that provides a fibrillation therapy output responsive to the arrhythmia detector detecting fibrillation of the fibrillating chamber of the heart. The therapy output includes a defibrillating shock having an output magnitude exceeding a temporary defibrillation threshold of the fibrillating chamber and at least one pre-defibrillating shock output pulse that reduces an initial defibrillation threshold of the fibrillating chamber to the temporary defibrillation threshold. An electrode system having at least two defibrillation electrodes delivers both the at least one pre-defibrillating shock output pulse to the heart and the defibrillating shock to the fibrillating chamber of the heart.
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Benser Michael E.
Bornzin Gene A.
Farazi Taraneh Ghaffari
Park Euljoon
Holmes Rex
Pacesetter Inc.
Patel Niketa I
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