Document Reference: ENG-UMAN-000731
Revision: 5.00
Page 13 of 61
5.1.2.1
ECAP measurement
This section is to be completed by the programming clinician outside of the sterile field.
Refer to Section 7 ‘Clinical Programming - Introduction’ for detailed programming
instructions.
1.
Connect the CI to the eCLS.
2.
Check electrode impedance using the CI to ensure the leads are connected properly
(see Section 8.5).
o
If electrode impedance is greater than 4000Ω check all the connections.
o
Check impedance after each reconnection of the proximal connector to the lead
adapter
3.
Select the stimulation and measurement electrodes and settings.
4.
Verify that an ECAP can be measured by stimulating, for example, at the top and
bottom of the lead
o
If the ECAP measured is not satisfactory, change the electrodes, stimulation or
measurement settings using the CI or move the percutaneous lead to a new
position.
o
Verify ECAP measurement after changing settings or moving the percutaneous
lead.
5.
When satisfied with the lead placement, turn stimulation off and disconnect the
eCLS from the lead adapter extension.
6.
The surgeon then disconnects the lead adapter from the lead.
5.1.2.2
Paresthesia mapping
This section is to be completed by the programming clinician outside of the sterile field.
Refer to Section 8 ‘Clinical Programming ’ for detailed programming instructions.
1.
Connect the CI to the eCLS.
2.
Check electrode impedance using the CI to ensure the leads are connected properly
(see Section 8.5).
a.
If electrode impedance is greater than 4000Ω check all the connections.
b.
Check impedance after each reconnection of the proximal connector to the
adapter.
3.
Select the stimulation and measurement electrodes and settings.
4.
Increase stimulation current until the patient reports a medium level of paresthesia
(tingling).
5.
Adjust settings to ensure that ECAPs are being measured correctly.
a.
The patient should report paresthesia coverage of the body that aligns with
their pain area.
b.
If paresthesia coverage is not satisfactory, change the electrode and
stimulation settings using the CI or move the percutaneous lead to a new
position.
6.
Retest paresthesia coverage after changing settings or moving the percutaneous
lead.
7.
When satisfied with the lead placement, turn stimulation off and disconnect the
