Medtronic Prostiva 8930 Guía Para El Usuario página 76

8930EN_4.fm 12/17/10 2:44 pm
UCxxxxxx EN
7 x 9 inches (178 mm x 229 mm)
Chapter 4
76
Patient Treatment
English 8930 System User Guide 2010-12
MA07445A008 Rev X
4. Coat the tip of the hand piece with a generous amount of
water-soluble lubricating or anesthetizing gel. Carefully insert
the hand piece into the urethra through the meatus.
5. Use the hand piece telescope to locate the bladder neck and
the verumontanum.
6. Adjust the telescope as necessary for the best view of the
patient's anatomy.
7. Use the predetermined measurements to position the hand
piece tip 0.75-1.0 cm distal from the bladder neck (refer to
"Establishing Treatment Nomogram" on page 63).
8. Position the needles at the deployment site by rotating the
hand piece sheath completely to the appropriate lobe.
Note: The needles exit the hand piece at approximately a
90 degree angle.
9. Reposition the telescope to view and locate the site for
needle deployment.
Warning: Do not deploy the needles, until the hand piece
is properly placed. Proper placement of the needles and
accurate needle length selections are essential. Improper
positioning of the hand piece, misplacement of the needles, or
improper needle length selections could result in damage to
the external sphincter or urethra, perforation of the prostatic
capsule or bladder neck, incomplete ablation, incontinence, or
damage to the rectum.
Notes:
The first needle deployment should be approximately
■
0.75-1.0 cm from the bladder neck.
Needle deployments in the apex region should be at least
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0.75-1.0 cm above the verumontanum.
When treating the median lobe, it is recommended that
■
you select a needle length of 12 mm or 14 mm.
It is necessary to visualize the size and structure. It is
■
recommended that you deploy the needles 1.0 cm away
from the proximal margin of the bladder neck. Then, as
needed, advance down the median lobe under direct
vision.
10. To fully deploy the needles and appropriately retract the
shields, firmly pull the trigger mechanism all the way back
until the trigger reaches the automatic stop.
Note: Confirm that the hand piece tip is flush against the
urethra.
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