Appendix - Boston Scientific SC-5210 Manuel

Appendix

Rechargeable Implant Battery Longevity
The rechargeable implant battery should provide at least five years of service. In many cases, the implant battery should provide at
least 25 years of service. Battery-longevity is dependent on the stimulation settings and conditions. The battery-longevity projections
provided in the table below are based on continuous stimulation with one area (as described on page 11) and one program (as
described on page 11). The longevity estimates are generated using projections of typical results based on Boston Scientific internal
testing data. Actual results may vary. To determine battery-longevity with multiple-area stimulation, please use the Multiple-Area
Longevity Worksheet provided below. To determine battery-longevity with multiple stimulation programs, please use the Multiple-
Program Longevity Worksheet provided below. If stimulation is not used continuously, the projected battery longevity should exceed
the value shown.
Defining End of Battery Longevity
The expected battery longevity is defined as the longer of either:
a) Typical case: the time from initiating therapy to the time at which therapy cannot be maintained with daily charging
OR
b) High energy case: when the maximum time between charging has decreased by more than 50% from the initial maximum time
between charging.
Effect of Impedance on Battery-Longevity Projections
This chart assumes a maximum impedance of 750 ohms between any 2 contacts in use. For lower impedance values, the projected
battery longevity should slightly exceed the value shown, for higher impedances, the projected battery longevity should be slightly less
than the value shown. For example, the following stimulation settings/conditions give battery-longevity projections of 10.2 years:
Amplitude: 6 mA
Rate: 240 Hz
Pulse width: 400 micro seconds
Impedance: 750 ohms
Appendix
Patient System Handbook
9055960-003 REV B 47 of 233