Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2003-10-15
2008-11-11
Layno, Carl H (Department: 3766)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
C607S004000, C607S005000, C607S007000
Reexamination Certificate
active
07450995
ABSTRACT:
An output circuit for use in an implantable cardiac defibrillation provides an output pulse having a waveform of virtually any desired shape. The device includes a sensing circuit that senses cardiac activity. An arrhythmia detector detects fibrillation responsive to the cardiac activity signal. The device further includes an output circuit that provides a stimulation output pulse when the arrhythmia detector detects a cardiac arrhythmia. The output circuit includes an H-bridge having a pair of switching devices which control the output pulse waveform with pulse-width modulation and a second pair of switching devices that control the output pulse polarity.
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Badelt Steven W.
Kroll Mark W.
Mouchawar Gabriel A.
Moulder J. Christopher
Layno Carl H
Malamud Deborah
Pacesetter Inc.
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