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Physician’s Manual — VNS Therapy Programming Software (8.1)
Figure 41.
Low Lead Impedance on System Diagnostics in
OR - Initial Implant
Error message encountered:
“A LOW Lead impedance has been detected...”
Lead Impedance “LOW”
Verify that the Lead electrodes have been correctly placed on the nerve.
If the nerve site is saturated, remove pooled fluid.
Retry System Diagnostics.
System Diagnostics Results
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
.
Proceed with implant.
Contact Cyberonics’ Clinical Technical
Support at
1 (866) 882-8804 (U.S. and
Canada) or +1 (281) 228-7330
(Worldwide)
.
“OK” Lead Impedance
“LOW” Lead
Impedance
Back out setscrew(s) and remove test resistor.
Verify the setscrew(s) is not visible in the Lead receptacle(s).
Engage the hex screwdriver in the setscrew(s).
Insert connector pin(s) and tighten setscrew(s) until the hex
screwdriver clicks.
Visually inspect the Lead receptacle(s) and verify that the Lead
pin(s) is past the back end of the connector block(s).
Retry System Diagnostics.
“LOW” Lead Impedance
“OK” Lead Impedance
System Diagnostics Results
Proceed with implant.
“LOW” Lead Impedance
“OK” Lead Impedance
Generator Diagnostics Results
