Tablet Instructions
35
RNS
®
System Programming Manual
Figure 24 Recording Montage screen
3.
At Neurostimulator Implant and When Changing Leads – Select Lead Type:
Upon first
use of leads, you must select the lead type for
P
ORT
#1
and/or
P
ORT
#2
. To do this, select the
field that says
N
ONE
, just below the
P
ORT
#1
or
P
ORT
#2
names at the top, and select the type
of lead installed in each port. When lead types are already selected for the ports, proceed to
the next step.
4.
Assign Channels:
Use the channel rows and electrode columns to assign two electrodes to
each
C
HANNEL
(1 through 4). To do this, select the small, square field where the channel and
electrode intersect and then select a positive [+] non-inverting input, a negative [–] inverting
input, or zero [0]. Detection occurs across the selected electrodes for each channel.
Each electrode can be assigned to one or two channels. The tablet requires you to use a
positive [+] input for electrodes assigned to two channels.
Note: The tablet does not permit use of a negative [–] input for electrodes assigned to two
channels because it may result in ECoG artifacts.
5.
Set Gain:
Next to the channel name on the left, select the
G
AIN
field for each channel to
select
H
IGH
,
M
EDIUM
-
H
IGH
,
M
EDIUM
-
L
OW
, or
L
OW
. The default is
H
IGH
and it is usually not
changed. After programming, you can assess ECoG signal amplification by viewing the live
ECoGs.
6.
Scheduled Impedance Settings:
These settings are at lower left. By default, the tablet
schedules an impedance test on all electrodes every 7 days with 3.0 mA current at 2:00
AM
.
Select the fields next to
I
NTERVAL
,
C
URRENT
and
T
IME
to choose different settings. Normally
there is no need to use other than the default settings.
Recommended Initial Montage Settings
•
Channel 1
= Lead 1: Electrode 1 [+], Electrode 2 [–]
Select type of lead for Port #1 and Port #2
Channel
Rows
Lead label is
editable
Measured
Impedances
Electrodes 1 - 4
for lead on Port #2
Summary of Contents for PDMS 4340
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