Boston Scientific Precision Novi Guia De Informacion página 14

Information for Prescribers
IPG Battery Life
The Precision Novi IPG has a non-rechargeable battery. The longevity of the IPG battery
depends on the following factors:
• Programmed parameters (i.e., amplitude, rate, pulse width, number of electrodes used, and
number of stimulation areas)
• System impedance
• Use of cycling or burst settings
• Hours per day of stimulation
• Changes made by the patient to programmed parameters
It is possible to estimate the battery longevity of a new Precision Novi IPG based on usage
over 12 or 24 hours per day with a selected Program. The estimate is based on the settings of
a program, the system impedance at time of estimation, and the hours per day of stimulation.
These estimates will not reflect adjustments to stimulation parameters or changes in
impedance. The estimate functions as a reference value to approximate the period that a new
Precision Novi stimulator will last (see Estimating Longevity section).
Note: If the Precision Novi System is being considered for permanent implant, it is
recommended that the battery longevity of the Precision Novi IPG be estimated during the
trial. It is also recommended to estimate the battery longevity at the initial programming of the
implant.
Note: Estimations made after initial programming of the Precision Novi IPG may overestimate
the longevity of its battery.
Estimating Longevity
After the optimal settings have been identified for a program, click on Battery Estimate in the
Program Options Menu in the Bionic Navigator™ 3D software to obtain the Energy Use Index.
For programs in which all programmed areas make use of pulse widths greater than 30 μs,
use Figure 1 (if estimated usage of stimulation is 12 hours) or Figure 2 (if estimated usage of
stimulation is 24 hours) to identify the longevity that corresponds to this Energy Use Index.
For programs in which any programmed area makes use of pulse widths less than or equal
to 30 µs, use Figure 3 (if estimated usage of stimulation is 12 hours) or Figure 4 (if estimated
usage of stimulation is 24 hours) to identify the longevity that corresponds to this Energy Use
Index. Figures 1 to 4 take into account nominal non-therapy power consumption, including
shelf-life and patient remote control use. If the estimate for longevity obtained by these Figures
is below 12 months, consider evaluating a Boston Scientific rechargeable system.
Precision Novi™ System Information for Prescribers
90962628-03 Rev A 10 of 357