Bi-ventricular pacemaker â Maintains heart rate using synchronized pacing, or cardiac resynchronization therapy (CRT), that connects both the right and left ventricles; used to treat advanced heart failure; Implantable cardioverter defibrillator (ICD) â Monitors and paces the heart; delivers energy that restores the heart to a normal rhythm when it detects a dangerous rhythm; available in single-chamber, dual-chamber and bi-ventricular models.
The rotor is a moving component of an electromagnetic system in the electric motor, electric generator, or alternator. Its rotation is due to the interaction between the windings and magnetic fields which produces a torque around the rotor's axis.
In other words, in an induction motor the current flow in the rotor is not caused by any direct connection of the conductors to a voltage source, but rather the influence of the rotor conductors cutting across the lines of flux produced by the stator magnetic fields.