Table 1. Operating values for the Activa PC Model 37601 neurostimulator
Programmable parameter
Number of defined groups
Number of programs per group
Amplitude (voltage mode)
Amplitude (current mode)
Amplitude – upper patient limit
Amplitude – lower patient limit
Pulse width
Pulse width – upper patient limit
Pulse width – lower patient limit
Rate (voltage mode)
Rate (current mode)
Rate – upper patient limit
Rate – lower patient limit
SoftStart/Stop
Cycling
Interlocks will prevent the use of some parameter combinations.
a
b
Full range = -10.5 V (voltage mode); -25.5 mA (current mode).
c
Rate limited to 125 Hz when two programs are active on a single lead.
10 English 37601 2020-01-01
Operating range and resolution
1 to 4
1 to 4
0 to 10.5 V with 0.05-V or 0.1-V resolution
0 to 25.5 mA with 0.1-mA resolution
Tracking limit (by hemisphere): +0 to +2 (0.2 resolution);
+2 to +4.5 (0.5 resolution)
Tracking limit (by hemisphere): -0 to -2 (0.2 resolution);
-2 to -4.0 (0.5 resolution); full range
60 to 450 µs (10-µs resolution)
Tracking limit: +0 to +100 µs (10-µs resolution)
Tracking limit: -0 to -100 µs (10-µs resolution)
2 to 250 Hz (resolution: 1 Hz from 2 Hz to 10 Hz, 5 Hz
from 10 Hz to 250 Hz)
30 to 250 Hz (5-Hz resolution)
Tracking limit: +0 to +50 Hz (10-Hz resolution)
Tracking limit: -0 to -50 Hz (10-Hz resolution)
Off, On: 1-, 2-, 4-, or 8-second ramp duration
Off, On: 0.1 s to 24 hr (resolution: 0.1 s from 0.1 s to
1 s, 1 s from 1 s to 59 s, 1 min from 1 min to 59 min, 1
hr from 1 hr to 24 hr)
a
b
c
c