The Vercise Gevia Stimulator
Vercise Gevia™ 16 Contact IPG DFU
91168761-02 Page 13 of 419
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Stimulator Programmable Characteristics
The stimulation parameters are independent for the two DBS Leads such that stimulation of
two different brain targets can have different amplitudes, pulse widths, stimulation rates, and
contact configurations. The two DBS Leads can also have differing monopolar and multipolar
configurations. The programmable parameter ranges for the Stimulator are shown in Table 2.
Note:
Some frequency combinations may not be used. Refer to the Programming
Manual for more information on programming multiple frequencies.
Table 2: Stimulator Function
Parameter
Range
Amplitude
1
0.1 – 20 mA
Rate
2, 3
2 – 255 Hz
Pulse Width
4
20 – 450 µs
Cycle (On/Off)
1 s – 90 min
Stim Ramp On
1 – 10 s
Contact Connections
16
Independent Areas of Stim (4 Programs
with 4 Areas per Program)
16
1
The programmable coverage for each individual contact is limited to 12.7 mA.
A programming interlock is enforced to limit the total output current to 20 mA
or less per coverage area. For example, a maximum current output of 12.7 mA
on one contact would limit the total summed current output on the remaining
contacts to 7.3 mA within one coverage area.
2
The rate is limited to a sum of 255 Hz for a given port.
3
The use of higher frequencies than the ones that are established (250 Hz) is
the sole responsibility of the user.
4
The use of lower pulse widths than established (60-450 μsec) is the sole
responsibility of the user.
