Programming The Patient; Stimulator Programmable Characteristics - Boston Scientific Vercise DBS Programming Manual

Vercise™ DBS Programming Manual

Programming the Patient

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.
It is possible to configure one Lead as monopolar, and one as multipolar. It is also
possible to configure a single Lead with both monopolar and multipolar areas, as long as
the same contacts are not used in both.
The programmable parameter ranges for the Stimulator are shown below.
Parameter
Amplitude
1
Rate
2, 3
Pulse Width
4
Cycle (On/Off)
Stim Ramp On
Contact Connections
Independent Areas of Stim
(4 Programs with 4 Areas per Program)
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 255 Hz for a given area.
The use of higher frequencies than the ones that are established (250 Hz) is the sole responsibility of the
3
user.
The use of lower pulse widths than established (60 to 450 μsec) is the sole responsibility of the user.
4
Note: While it is possible to program stimulation rates higher than 255 pps, clinical
effectiveness and safety of these cumulative rates has not been demonstrated and is
not recommended.
WARNING: Although the CP utilizes warnings to aid clinicians in their
determination of safe charge density levels, the primary responsibility
of keeping safe current levels resides with the clinician. Additionally,
maximum and minimum amplitude levels allowed by the
Remote Control should be set and verified by the physician to ensure
that these levels are safe.
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Stimulator Function
Range
0.1 mA to 20 mA
2 Hz to 255 Hz
10 µs to 450 µs
1 sec to 90 minutes
1 to 10 seconds
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