Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2006-05-12
2010-06-29
Bockelman, Mark W (Department: 3766)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
Reexamination Certificate
active
07747320
ABSTRACT:
An implanted cardioverter defibrillator (ICD) delivers an electrical therapy signal to the heart of a patient. When ventricular fibrillation or another condition of the heart requiring high voltage therapy is sensed, the therapy signal is delivered to the heart. When a partial short-circuit or other low impedance condition occurs, an over-current protection circuit will stop delivery of a shocking pulse. The ICD will then reduce the voltage of the shocking pulse and try again to deliver electrical therapy. This process is repeated until a voltage level is found that is able to deliver the electrical therapy without causing an over-voltage condition. Alternate lead configurations may also be tried in an attempt to find a signal path that is not affected by the low impedance or short-circuit condition.
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NonFinal Office Action, mailed Oct. 20, 2008: Related U.S. Appl. No. 11/188,278.
NonFinal Office Action, mailed Mar. 6, 2009: Related U.S. Appl. No. 11/188,278.
Kroll Mark W.
Mouchawar Gabriel A.
Moulder J. Christopher
Walker Andre
Bockelman Mark W
Dinga Roland
Pacesetter Inc.
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