Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1997-06-02
1998-12-29
Jastrzab, Jeffrey R.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 139
Patent
active
058534261
ABSTRACT:
A method for defibrillating a patient's atria with an implantable defibrillator having defibrillation synchronized to the atrial fibrillation waveform. The defibrillator is used to detect fibrillation in a patient's aria, monitor at least one atrial fibrillation signal across two electrodes, then deliver a high energy shock during a period of atrial fibrillation when the cycle lengths are stable within a desired measure of the cycle lengths monitored during the monitoring time period. The shock is then delivered synchronous with the R wave to avoid inducing ventricular fibrillation. The defibrillator also includes a timer so that if the desired cycle length stability is not reached within a specified time limit, the shock will be delivered with less stringent cycle length stability criteria.
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Jastrzab Jeffrey R.
Mitchell Steven M.
Pacesetter Inc.
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