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Physician’s Manual — VNS Therapy Programming Software (8.1)
Impedance to assess how hard the device has to work to deliver a
selected output current, or how much the flow of current is impeded
(see Table 8, and Table 9). This parameter is not displayed for Models
103, 104, and 105.
Table 8.
DC-DC Converter Codes and Lead Impedance
(Model 100, SN
≥
10,000)
Table 9.
DC-DC Converter Codes and Lead Impedance
(Model 101)
* See the physician’s manual for the Pulse Generator for details.
DC-DC
Converter Code
Estimated Lead Impedance
(1mA, 500
μ
sec)
0
<
0.8 kOhms
1
0.8–2 kOhms
2
2–4 kOhms
3
4–6.5 kOhms
4
6.5–10 kOhms
5
10–16 kOhms
6
16–20 kOhms
7
>
20 kOhms
DC-DC
Converter Code*
Estimated Lead Impedance
(1mA, 500
μ
sec)
0
≤
1.7 kOhms
1
1.8-2.8 kOhms
2
2.9-4.0 kOhms
3
4.1-5.2 kOhms
4
5.3-6.5 kOhms
5
6.6-7.7 kOhms
6
7.8-8.9 kOhms
7
≥
9 kOhms
