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Tablet Instructions
17
RNS
®
System Programming Manual
The
I
NTERROGATING NEUROSTIMULATOR
dialog shows progress and the
H
OME
screen appears when
complete. It takes from 10 seconds up to 5 minutes, depending on the amount of data to be retrieved.
Interrogation does not significantly drain the neurostimulator battery
The dialog has bars that show the
L
EVEL
and
Q
UALITY
of the
S
IGNAL
. The
L
EVEL
measures the
strength of the communication between the neurostimulator and the tablet. The
Q
UALITY
measures
the absence of electronic interference in the environment. Poor signal level or quality can result in
Poor or No Communication Between the RNS® Neurostimulator and the RNS® Tablet
—see
for troubleshooting information.
D
ATA
R
ETENTION AND
A
CCESS ON THE
N
EUROSTIMULATOR
,
P
ROGRAMMER AND
PDMS
Programmed Settings
The neurostimulator retains its programmed settings until it is programmed again. These include the
recording montage, ECoG capture triggers and reservations, and the detection and stimulation
settings.
Note: ECoG capture triggers are inactive during programming. Programming clears activity
information (diagnostics) and ECoGs stored in the neurostimulator. If there is any new
information, be sure to interrogate the neurostimulator prior to programming.
Storage of ECoGs and Neurostimulator Activity (Diagnostics)
Between interrogations
by the patient or a clinician, the neurostimulator stores ECoGs and
neurostimulator activity events up to its storage limit. (Neurostimulator activity events are also known
as diagnostics, which include, for example, detection and stimulation events and magnet swipes.)
Once the memory for ECoGs or diagnostics is full, the neurostimulator will store new data by
overwriting the oldest ECoG or diagnostics. Reserved ECoGs are overwritten only by newer ECoGs
of the same ECoG capture trigger type.
•
The limit to the number of ECoGs stored on the neurostimulator depends on the capture
duration you select in the ECoG capture settings (see
details).
•
You can make no adjustments that affect the number of neurostimulator activity events that
can be stored. However, the number of events that can be stored is large compared to the
number of ECoGs, because the data size of each event is relatively small.
At each interrogation
with the remote monitor or programmer, the neurostimulator transfers all
stored ECoGs and diagnostics to the programmer or remote monitor, at which point the successfully
transferred data is cleared from the neurostimulator.
•
If the programmer or remote monitor is not connected to the PDMS (via the Internet), the
transferred data remains on the programmer or remote monitor hard drive. You cannot view
ECoGs or diagnostics while stored on the programmer or remote monitor; it must be
transferred to the PDMS before you can view it.
•
When the programmer is connected to the PDMS (via the Internet), the transferred data is
automatically uploaded to the PDMS and cleared from the programmer memory. When the
patient synchronizes using the remote monitor, data is transferred to the PDMS and cleared
from the remote monitor. Data is retained on the PDMS.
Summary of Contents for PDMS 4340
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