Tablet Instructions
76
RNS
®
System Programming Manual
Illustration: If A
DAPT
M
IN
A
MPLITUDE
= 100% and the detected signal frequency = 20 Hz (50
ms period), the stimulation frequency is delivered at 20 Hz (50 ms p-p interval). If
A
DAPT
M
IN
A
MPLITUDE
= 50% and the sensed signal frequency = 20 Hz (50 ms
period), the stimulation frequency is delivered at 40 Hz (25 ms p-p interval).
If the neurostimulator cannot detect a stable frequency in the ECoG signal, or if
the calculated stimulation frequency is not between the
M
AX
T
HERAPY
F
REQUENCY
and
M
IN
T
HERAPY
F
REQUENCY
, then the burst is delivered at the
D
EFAULT
T
HERAPY
F
REQUENCY
.
Lower portion—Synchronized Therapy:
For
B
URST
1
only, synchronize delivery of therapy into
a specific part of the detected ECoG waveform over a chosen channel. The available options are:
Figure 61 Synchronized therapy settings—lower portion of Advanced Settings dialog
•
S
YNCH
C
HANNEL
:
Select one of four channels over which to deliver synchronized therapy.
•
S
YNCH
M
IN
A
MPLITUDE
:
Select a percentage of the detected signal amplitude to be used as
the minimum amplitude for synchronized therapy.
Then for
B
URST
1
and/or
B
URST
2
, select settings for the following:
•
S
YNCHRONIZATION
:
Turn
O
N
or
O
FF
synchronized therapy for
B
URST
1
. (Burst 2 is always
delivered asynchronously.)
•
D
ELAY
:
Set the delay (in ms) for delivery of
B
URST
1
therapy after detection of the target
ECoG waveform.
•
S
YNCH
S
LOPE
:
Select
U
P
or
D
OWN
.
Note: If the neurostimulator is unable to synchronize therapy into a detected waveform, it reverts
to asynchronous therapy delivery after 2 seconds.
Bottom portion—Post-Episode Interval:
Select the
P
OST
-
EPISODE
I
NTERVAL
, from
O
FF
(default)
to
24
HRS
, to specify the time the neurostimulator waits after the end of an episode before treating
a new episode. During the post-episode interval, monitoring continues but the system will not
deliver therapy for a new episode.
Summary of Contents for PDMS 4340
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