User's Manual

US-ENGLISH – 31
13. DEVICE DESCRIPTION
The PARADYM RF VR system includes the model 9250 ICD device
and programming system. The programming system includes the
Sorin CRM Orchestra Plus programmer with the SMARTVIEW
programming software connected to a CPR3 programming head. The
programming system is configured and furnished by Sorin CRM.
The PARADYM RF VR 9250 can serve as a defibrillation electrode
(active housing) with a total surface area of 76 cm².
The PARADYM RF VR 9250 is designed to recognize and treat slow
or fast VT and VF by continuously monitoring ventricular activity to
identify persistent ventricular arrhythmias and to deliver appropriate
therapies. PARADYM RF VR 9250 features DISCRIMINATION
algorithm, which is specifically designed to differentiate ventricular
tachycardias from fast rhythms of supraventricular origin.
DISCRIMINATION continuously monitors R-R interval stability,
searches for long cycles and evaluates sudden onset.
In addition to the advanced detection scheme, PARADYM RF VR 9250
offers programmable single-chamber pacing therapy with or without
rate-responsive capabilities using an acceleration sensor.
PARADYM RF VR 9250 offers tiered therapy. Therapies can be
programmed independently in each zone:
 in the Slow VT and VT zones: two ATP programs, up to
two shocks with programmable energy and up to four
shocks with maximum energy can be programmed;
 in the VF zone: one ATP program, up to two shocks with
programmable energy and up to four shocks with
maximum energy can be programmed.
When the rhythm changes from one zone to another, the device
delivers the therapy programmed in this zone, starting with the same
or more aggressive program for the area. The ATP program in the
VF zone will only be applied if the VT coupling interval is longer than
the programmed fast VT cycle length.