22 English Inspire System Models 3024, 4063, 4323
200-079-101 Rev A
3024EN_ch.fm 5/6/14 10:31 pm
4.625 x 6 inches (117 mm x 152 mm)
Inspire Medical Confidential
Test Stimulation
Use intraoperative test stimulation to help confirm proper lead position. Steps 1–6 describe test
stimulation with the IPG; step 7 describes an alternative method using a stimulator other than
the IPG.
1. Confirm that IPG therapy is off.
2. Insert the stimulation lead connector into the IPG connector port marked STIM (Figure 10).
Note: Refer to page 31 for instructions on connecting the stimulation lead to the IPG.
Figure 10. Insert the stimulation lead into the connector port marked STIM
3. Program the IPG using the physician programmer (see the programming manual for
instructions). It is recommended to start at 0.5 volts and increase stimulation in 0.2 volt
increments. Conduct intraoperative test stimulation while observing the tongue and neck
area for signs of patient muscle response to stimulation.
4. Verify that the stimulation gives the appropriate response. Reposition the lead as
necessary. During and after repositioning of the lead, apply sterile saline to the cuff to
facilitate electrical contact of the cuff electrodes with the nerve. Continue to reposition the
cuff if a stimulation response does not occur.
5. Confirm that IPG therapy is off when finished with intraoperative test stimulation.
6. Carefully disconnect the stimulation lead connector from the IPG.
7. Alternate method:
a. Use an approved external stimulator to conduct intraoperative test stimulation as an
alternative to using the IPG.
b. The external stimulator will require sterile wires to interface with the connector of the
stimulation lead.
c. Repeat the stimulation process described in steps 3 and 4 above to ensure proper
placement of the cuff.
Cautions:
• Use care not to dislodge the lead.
• Use care to not loosen the IPG set screws too far, which can result in the set
screws unseating from the connector.
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