Boston Scientific Vercise DB-1110-C Manual página 64

Vercise™ DBS Physician Manual
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. The two DBS Leads can also have differing
monopolar and multipolar configurations; however, a given DBS Lead contact cannot be
programmed as both monopolar and multipolar.
The programmable parameter ranges for the Stimulator are shown in Table 2.
Note: Some frequency combinations may not be used. See the DBS Programming
Manual for specific frequency combinations.
Amplitude
4
Rate
5, 6
Pulse Width
7
Cycle (On/Off)
Stim Ramp On
Contact Connections
Independent Areas of Stim (4 Programs with
4 Areas per Program)
Note: While it is possible to program stimulation rates higher than 255 Hz, clinical
effectiveness and saftey 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.
The programmable coverage for each individual contact is limited to 12.7 mA. A programming
4
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.
The rate is limited to 255 Hz for a given area.
5
The use of higher frequencies than the ones that are established (250 Hz) is the sole responsibility of
6
the user.
The use of lower pulse widths than established (60 μs to 450 μs) is the sole responsibility of the user.
7
Vercise™ DBS Physician Manual
91098825-11 60 of 341
Table 2: Stimulator Function
Parameter Range
0.1 mA to 20 mA
2 Hz to 255 Hz
10 µs to 450 µs
1 s to 90 min
1 s to 10 s
16
16