System Manual

26-0002-0003/5 (en) (2021) 57
14 DEVICE LIFETIME
14.1 IPG Lifetime, Removal, and Replacement
All MicroTransponder IPGs eventually require surgical replacement as a result of battery
depletion. IPG replacement does not, of itself, require Lead replacement unless a Lead
discontinuity (a break) is suspected.
14.1.1 Signs of End of Life for the Vivistim
®
System
The most common reason for the absence of stimulation is battery depletion, although there
may be other reasons. When end of life (EOL) occurs, the IPG will be unable to provide
stimulation. If the IPG is not explanted or replaced at EOL, the battery voltage will continue to
gradually decrease, and communication with the IPG may not be possible.
14.1.2 Replacement Based on Battery Status Indicators
During patient visits, you will use SAPS to check the status of the patient’s IPG (see Figure
4.8: ). The SAPS will display warning messages if the battery is nearing its depletion.