26-0008-1100/5
(Worldwide)
— 59 of 92
Physician’s Manual — VNS Therapy Programming Software (8.1)
9. P
RECAUTIONS
______________________
If problems occur with the Programming Software, review the information
in this section:
When in use, LivaNova recommends the handheld computer be
operated on battery power only (unplugged from AC power). When
not in use, the handheld computer should be plugged into AC power to
maintain charge.
LivaNova recommends that no other software be loaded onto the VNS
Therapy System computer because it may interfere with proper
functioning of the software already installed on the handheld
computer.
For Models 100, 101, and 102 Pulse Generators, if the
System
Diagnostics
or
Generator Diagnostics
is interrupted, the output
current may be left at 0 mA or 1 mA. See “Interrupted System and
Generator Diagnostics” on page 31.
The Pulse Generator stores a value representing the total number of
magnet activations. It also stores the date and time of the previous 15
magnet activations (provided the date and time settings on the
handheld are correct). Therefore, only the 15 most recent magnet
activations will be stored in the database at each follow-up visit.
Detecting EMI is possible only while the Programming Wand is turned
on (indicated by the green “POWER” light). If the green light stops
shining before the EMI source has been located, turn on the
Programming Wand again. If EMI or other electrical noise is detected,
the yellow DATA/RCVD light will come on and remain on as long as
the Programming Wand is in the presence of an EMI signal.
Programming in an area with EMI can be difficult or impossible, but
problems can usually be resolved by repositioning the patient, the
Programming Wand, or the EMI source.
For Models 100, 101, and 102, in the
VIEW MAGNET HISTORY
Screen
, only the hour of the magnet activation is shown. Although
there are spaces for minutes and seconds, the software will not display
those values.
For Model 105 Pulse Generator, using the cross pattern swiping
technique for magnet activations may cause duplication in the magnet
activation time-stamps and in the total magnet activation counts.
Depending on Generator and Magnet orientation, one or two entries
may be shown in the Magnet History data for each cross-pattern
swipe. This is an expected occurrence due to Pulse Generator design
and is not considered a device malfunction. For more information, see
the Pulse Generator Physician’s and Patient’s manuals.
For Model Pulse Generators previously programmed to a treatment
time per day of less than 24 hours (using earlier Versions of the
Programming Software), attempts to interrogate the Pulse Generator
