Boston Scientific Precision Manuel Supplémentaire page 6

Precision™ System for Peripheral Nerve Stimulation
1. Position, prep and drape the patient in the usual accepted manner. Inject a local
anesthetic at the needle insertion site. Be careful to avoid anesthetizing the target nerve(s)
(i.e. minimize lateral injections, minimize injection volume).
2. Insert the needle provided in the Lead Kit, with stylet inserted, into the subcutaneous tissue
plane. Advance the needle to the target location. The needle can be advanced slightly
beyond the target location to allow for more proximal repositioning during intraoperative
testing. Pinching superficial tissue away from the fascial layer helps guide the needle within
the subcutaneous fat.
CAUTION: Use only an insertion needle provided by Boston Scientific. Other needles may
damage the lead. The stamped number "14" on the needle hub (or the triangle on the hub
of the curved Epimed needle, sold separately) corresponds to the orientation of the bevel,
which must face up. Turning the bevel down may result in lead damage.
Note: Engaging the dermis can be prevented by facing the needle bevel down from the
dermal interface and pinching the skin.
CauTioN: if electrodes are too close to (or through) the fascia, the patient may experience
painful direct muscle stimulation. If they are too superficial, the risk of electrode erosion is
increased.
3. Remove the needle stylet from the insertion needle.
4. Slowly introduce the lead, with lead stylet, through the insertion needle. Advance to the tip
of the needle.
5. OPTIONAL. If exchange of the lead stylet is desired, carefully pull out the existing stylet
and insert the preferred stylet. While inserting the stylet into the lead, if resistance is
encountered, withdraw the stylet approximately 3 cm, rotate the lead and/or stylet and
gently advance the stylet. If resistance is still encountered, repeat the above procedure until
the stylet can be fully inserted.
WaRNiNG: Do not exchange the lead stylet while the electrode array of the lead is in the
bevel of the insertion needle. if the electrode array is in the bevel area, remove the lead
from the insertion needle before exchanging the stylet. inserting the lead stylet in the lead
while the electrode array is in the bevel of the insertion needle increases the risk of lead
and tissue damage.
WaRNiNG: if the lead stylet is removed and reinserted, do not use excessive force when
inserting the stylet into the lead. The use of instruments, such as forceps, to grasp the stylet
during insertion is not recommended as this could result in applying excessive force and
could increase the risk of lead and tissue damage.
Precision™ System for Peripheral Nerve Stimulation
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