Evoke
®
SCS System Clinical Manual
CLIN-UMAN-005175
Revision: 9.00
Page 81 of 101
1. Stimulation should be stopped before charging is started. Stimulation can be stopped
using the CPA (see 6.14.1) or the EPC (see Evoke SCS System User Manual).
2. During charging the CLS automatically disables closed-loop stimulation.
3. After charging has started, stimulation may be turned on, but closed-loop will remain
disabled. Stimulation will restart at the current level saved when stimulation was
stopped.
4. If charging starts while stimulation is on, the CLS can be set using CPA to respond in
one of two ways (see settings screen in Section 8.6):
a.
When ‘PCLCS Supervisor Charger Mitigation Enabled’ is not checked,
stimulation will automatically stop when charging starts. After charging has
started, stimulation may be turned on, but closed-loop will remain disabled.
Stimulation current will be set to 0 mA and the patient can increase it with the
EPC.
b.
When ‘PCLCS Supervisor Charger Mitigation Enabled’ is checked (default),
stimulation continues with closed-loop disabled when charging starts, and the
stimulation current is set to the minimum from the previous 10 seconds.
5. After charging has finished, the CLS will automatically enable closed-loop stimulation.
If stimulation was on during charging, the target is set to the average ECAP amplitude
from the previous 5 seconds.
Caution
: Refer to the Evoke SCS System Surgical Guide for precautions when
operating equipment. During charging, closed-loop is disabled, so patients should turn
stimulation off if charging while driving or operating equipment.
Note:
When the CLS automatically enables or disables closed-loop stimulation, the
patient may feel changes in paresthesia intensity.
Note:
During charging, ECAP measurements may be distorted by the charging field.
15
Patient education and ID card
Educate the patient on the use of their EPC and Charger (if applicable) using the Evoke SCS
System User Manual.
All patients should be supplied with a Patient ID card for the clinician to complete.
1. Give the completed Patient ID card to the patient so that they can use it to show
other medical practitioners or security personnel that they have an active implanted
medical device.
2. Educate the patient to show the Patient ID card to healthcare professionals before
undergoing any medical procedure.
