c. Pull plunger back until it is locked into place at desired setting, creating
a suction.
d. Set prepared syringe aside until aspiration biopsy is desired.
3. Advance device into ultrasound endoscope to determine preferred sheath
length. To adjust length, loosen thumbscrew lock on sliding sheath adjuster and
slide until preferred length is attained. Note: Reference mark for sheath length
will appear in sliding sheath adjuster window. (See fig. 2) Tighten thumbscrew
on sliding sheath adjuster to maintain preferred sheath length.
INSTRUCTIONS FOR USE
1. Identify desired biopsy site by endoscopic ultrasound.
2. Introduce ultrasound needle into accessory channel and advance device in small
increments until Luer lock fitting at base of sliding sheath adjuster meets fitting
on accessory channel. (See fig. 3)
3. Attach device to accessory channel port by rotating device handle until fittings
are connected.
4. With ultrasound endoscope and device straight, adjust needle to desired length
by loosening thumbscrew on safety ring, and advancing it until desired reference
mark for needle advancement appears in the window of safety ring. (See fig. 4)
Tighten thumbscrew to lock safety ring in place. Note: Number in safety lock ring
window indicates extension of needle in centimeters.
Caution: During needle adjustment or extension, ensure device has been
attached to accessory channel. Failure to attach device prior to needle
adjustment or extension may result in damage to endoscope.
5. While maintaining position of ultrasound endoscope, extend needle by
advancing needle handle to pre-positioned safety ring.
6. Advance needle into lesion.
7. Remove stylet from needle by gently pulling back on plastic hub seated in metal
fitting of needle handle. Preserve stylet for use if additional cell collection is
desired.
8. Attach Luer lock fitting of previously prepared syringe securely onto fitting
on handle.
9. Turn stopcock to "open" position aligned with syringe, allowing negative pressure
in syringe to aspirate cells. Gently move handle in small increments back and
forth within biopsy site. Note: Do not remove needle from biopsy site during cell
collection.
10. Upon completion of cell collection, retract needle into sheath by pulling back on
handle shaft. Lock thumbscrew on safety ring at 0 cm mark.
11. Disconnect Luer lock fitting from accessory channel and withdraw entire device
from ultrasound endoscope.
6
Illustrations