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(Worldwide)
Physician’s Manual — VNS Therapy Programming Software (8.1)
10.3.5.
Low Lead impedance on System Diagnostics in
OR – Pulse Generator replacement
Low Lead impedance (
≤
600 Ohms) in the OR can be attributed to:
Short-circuit condition within the Lead
Defective Pulse Generator
To alleviate the condition, perform these steps (see Figure 42):
1. Remove the Lead connector pin(s) from the Lead receptacle(s).
2. Insert the connector pin(s) of the test resistor assembly into the Lead
receptacle(s) in the Pulse Generator.
3. Tighten the setscrew(s) until the hex screwdriver clicks.
4. Perform the Generator Diagnostics.
If the Generator Diagnostics indicates “LOW” or “OK” Lead
impedance, contact LivaNova at 1 (866) 882-8804 (U.S. and
Canada) or +1 (281) 228-7330 (Worldwide).
Figure 42.
Low Lead Impedance on System Diagnostics in
OR - Pulse Generator Replacement
Error message encountered:
“A LOW Lead impedance has been detected...”
Lead Impedance “LOW”
Back out setscrew(s) and remove Lead pin(s).
Insert test resistor into Pulse Generator and tighten setscrew(s) with hex
screwdriver until the screwdriver clicks (resistor is packaged with generator).
On the Computer select
Other Diagnostics
.
Select
Generator Diagnostics
.
Contact Cyberonics’ Clinical Technical Support at
1 (866) 882-8804
(U.S. and Canada) or +1 (281) 228-7330 (Worldwide)
.
“LOW” Lead Impedance
or
“OK” Lead Impedance
Generator Diagnostics Results
