User's Manual

12 – US-ENGLISH
4.4. LEAD EVALUATION AND LEAD CONNECTION
PARADYM RF SonR CRT-D 9770 has two DF-1, two IS-1 connector,
and one sonR connector ports. The sonR connector port has been
specifically designed by Sorin CRM to accept three connections (tripolar).
The two distal connections respect the same dimensions as the IS-1
standard, and an additional proximal connection allows to connect the
sonR signal.
The sonR port accepts either a conventional atrial lead (without sonR
capability) or a sonR atrial lead (bipolar pacing/sensing and sonR
capability). IS-1 refers to the international standard whereby leads and
generators from different manufacturers are assured a basic fit (ISO
5841-3:2000). DF-1 refers to the international standard for defibrillation
lead connectors (ISO 11318:2002).
Do not tie a ligature directly to the lead body, tie it too tightly, or
otherwise create excessive strain at the insertion site as this may
damage the lead. Use the lead stabilizer to secure the lead lateral to
the venous entry site.
Do not grip the lead with surgical instruments.
Do not use excessive force or surgical instruments to insert a stylet
into a lead.
Use ventricular transvenous leads with caution in patients with either
a mechanical or bioprosthetic tricuspid valvular prosthesis.
Use the correct suture sleeve (when needed) for each lead, to
immobilize the lead and protect it against damage from ligatures.
Never implant the system with a lead system that has a measured
shock impedance of less than 30 ohms. A protection circuit in the
defibrillator prevents shock delivery when impedance is too low. If the
shock impedance is less than 30 ohms, reposition the lead system to
allow a greater distance between the electrodes.
Do not kink leads. Kinking leads may cause additional stress on the
leads, possibly resulting in lead fracture.