Medtronic ProstivaRF Therapy 8930 Bedienungsanleitung Seite 111

8930EN_7.fm 12/17/10 2:44 pm
UCxxxxxx EN
7 x 9 inches (178 mm x 229 mm)
Table 7-1. Troubleshooting Checklist
Symptom
Impedance is
■
less than 80 Ω
Temperature
■
increase on one
needle is slower
than normal
Urethral
■
temperature rise
is consistent with
one needle
Red "overview"
■
occludes
vision/blocks
irrigation channel
"Black" vision on
■
optics
MA07445A008 Rev X
Probable Cause
Needle may be Retract and
■ ■
deployed in redeploy needles
bladder or through and shields.
bladder neck
Consider
■
Needle may be in shortening
■
a vessel needles.
Needle may be Retract and
■ ■
touching prostatic redeploy needles
stone and shields.
Irrigation may still Turn off irrigation.
■ ■
be on
Check impedance.
■
Needle may be in
■
the bladder or
blood vessel
Needles may be Stop power
■ ■
tracking across the delivery; retract
urethra and redeploy
needles and
shields.
Blood clots over Use a Luer lock
■ ■
optics tip syringe to flush via
irrigation channel.
This may remove
larger blood clots
with the hand
piece sheath.
Alternatively,
■
unlock the rod lens
and slowly retract
from hand piece;
gently slide rod
lens in and out of
hand piece to
dislodge any blood
clots
Full bladder Empty bladder.
■ ■
Broken optics Check optics.
■ ■
Supplemental Information
Troubleshooting Checklist
Actions Prevention
Ensure needle
■
deployment is
1 cm distal from
the bladder neck.
Check ultrasound
■
for evidence and
location of stones.
Check irrigation
■
before ablation.
Ensure needle
■
deployment is
1 cm distal from
the bladder neck.
Apply lateral
■
pressure before
needle
deployment.
Avoid moving and
■
repositioning of the
hand piece as
much as possible.
Excessive
■
movement may
cause more
trauma and
bleeding.
Increase flow rate
■
of irrigation
Irrigate between
■
lesions to wash
away blood.
Be sure bladder is
■
appropriately
drained.
Handle optics
■
carefully.
2010-12 8930 System User Guide English
Medtronic Confidential
CRMRef_R06
111