Abstract: The present invention is a system for terminating cardiac arrhythmia using existing defibrillators found in the field in conjunction with a safe junction box. The system is designed to allow the defibrillator to connect to specially designed catheters equipped with specially designed electrodes and external electrodes for coupling energy to the heart that is greatly less than that used with external defibrillation alone. The system has the ability to create internal cardioversion vectors and also “hybrid” cardioversion vectors by allowing the external and internal electrodes to act together in the cardioversion process that is used to terminate arrhythmia in temporary and quasi-permanent implant applications. The quasi-permanent implant applications are greater than thirty day but less than twelve month applications where an implanted defibrillator may not be the ideal solution for patient care.

Abstract: The present invention is a system for terminating cardiac arrhythmia using existing defibrillators found in the field in conjunction with a safe junction box. The system is designed to allow the defibrillator to connect to specially designed catheters equipped with specially designed electrodes and external electrodes for coupling energy to the heart that is greatly less than that used with external defibrillation alone. The system has the ability to create internal cardioversion vectors and also “hybrid” cardioversion vectors by allowing the external and internal electrodes to act together in the cardioversion process that is used to terminate arrhythmia in temporary and quasi-permanent implant applications. The quasi-permanent implant applications are greater than thirty day but less than twelve month applications where an implanted defibrillator may not be the ideal solution for patient care.