28 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
4. Insert the tip of the respiratory sensing lead between the internal and external intercostal
muscle layers at a shallow angle along the superior edge of the inferior rib forming the
intercostal space.
Note: Enter the intercostal space toward the medial side of the incision in order to provide
lateral space for lead anchoring within the incision.
5. Insert approximately 3–5 cm (1–2 in) of the length of the distal lead between the internal
and external intercostal muscle layers.
• The sensor membrane (flat surface) is required to face toward the pleura.
• Raised ridges on the distal anchor are to face up, which confirms that the sensor
membrane is facing toward the thoracic cavity.
6. Secure the respiratory sensing lead with permanent sutures using the two winglet features
and two grooves of each of the two anchors on the respiratory sensing lead (i.e., eight total
sutures to secure both anchors).
• Ensure that the sensor membrane orientation is maintained during suturing of the
anchors.
Note: The distal anchor is adhered to the lead body, and the second anchor may be slid
along the lead body to the desired position. If the second anchor does not slide, use saline
to moisten the lead body, which may improve the ability to slide the anchor. Position the
sliding anchor to direct the lead toward the IPG pocket. Leave a small amount of excess
lead length between the two sutures to allow the sutures to move with the body without
placing tension on the lead. The excess lead should form an omega shape between the
two lead anchors.
7. Suture the anchor in place to the subcutaneous tissues.
8. Check that the lead body exiting the intercostal muscles transitions smoothly before
tunneling to the IPG pocket, forming the recommended omega-shaped strain relief
between the two anchors.
9. Tunnel the connector end of the respiratory sensing lead to the IPG pocket using the
tunneling tool. Refer to “Tunneling the Lead” on page 25 for instructions.
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Caution: Do not loop the lead such that the lead body crosses and touches
itself. Crossing the lead bodies can result in fibrosis at the intersection point and
reduce strain relief in the lead body.
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