Transcript Differences between PVP laser systems

DIFFERENCES BETWEEN
PVP LASER SYSTEMS
Charles Chabert
What is the History of GreenLight?
PV
HPS
XPS
Year Introduced
2002
2006
2010
Power
80 W
120 W
180 W
Working distance
0.5 mm
0.5 – 3.0 mm
0.5 – 3.0 mm
Vapor beam mode
Pulsed
CW
CW
Fiber core diameter
600 m
600 m
Coag Mode
No
Yes
750 m MoXy 180W
600 m MoJo 120W
TruCoagTM
FiberLife
No
No
Yes
Current draw
50 A
20 A
20A
Cooling water
Site supplied
Internal
Internal
Charles Chabert
What doesn’t change from HPS
Fiber-to-tissue working distance
CW operation – no “flashing” during
vaporization
Instant switching between “vapor” and
“coag” directly controlled by surgeon
using footswitch
Switch between “Ready” and “Standby”
directly controlled by surgeon using
footswitch
Utility / site requirements
Charles Chabert
XPS introduces four enhancements
Enhancement:
Benefit:
Industrial Design
• Damage resistant and rugged case
• Shorter time-to-repair
FiberLife™
• Increases fiber longevity
TruCoag™
• Better control of aberrant bleeders
compared to the previous GreenLight
HPS and PV consoles
50% Increase in
Power
• Increased tissue removal rate while
maintaining same safety profile when
used w/MoXy fiber
Charles Chabert
What are the Industrial Design Differences?
XPS
HPS
USB port for data
downloads
Self-centering
fasteners on door
sides for easier
closing
Damage Resistant
Bumper Exo-Skeleton
Charles Chabert
No new tools
required
Electronics reengineered for even
greater reliability
What is FiberLife™?
FiberLife™ is an automatic safety system that detects
conditions when the cap may overheat and briefly disables the
beam. This keeps the cap temperature within the safe zone!
Without FiberLife
With FiberLife
Cap
Destroyed
Yellow =Fiber tip temperature Green=Laser Power
Benefit:
• FiberLife™ reduces fiber tip detachment failure by up to 90%
Charles Chabert
Cap
temp
remains
safe
TruCoag™ to quickly stop nuisance bleeding
Charles Chabert
MoXy Fiber introduces five enhancements
2090 Fiber
MoXy Fiber
Benefit
Nested
pouch
Nestless
pouch
• Easy to use, less chance of damaging fiber
120W
275kJ
180W
400kJ
600 µm Core
Diameter
750 µm Core
Diameter
Glued Cap
NA
Charles Chabert
• Handles greater power output
• Higher Joule limit for larger glands
• Similar removal depth between 2090 &
MoXy
• Similar HAZ between 2090 & MoXy
Enhanced Cap •
Stray beams have been virtually eliminated
Active Cooling • Ability to treat large glands with one fiber
Cap (Saline)
• Reduced fiber temperature reduces fiber
divitrification and power degradation
• Minimal loss of vaporization efficiency
throughout duration of procedure
• Fewer cap mechanical failures
Why Does A New Cap Design Matter?
Compared to the 2090 fiber, the MoXy fiber uses a different
technology to attach the fiber cap to the fiber body.
10-2090 Fiber
MoXy Fiber
Results/Benefits:
Charles Chabert• Stray beams have been virtually eliminated
Isn’t Interior Cooling, Cool?
AMS Innovation - Active Cooling Cap ™ (ACC) Fiber
Delivery Device in MoXy.
Saline flows through the MoXy fiber maintaining the temperature of
the fiber body and cooling the fiber tip.
Fiber jacket
Saline
within
fiber
Saline
from
cystoscope
Charles Chabert
Outer flow tubing
Outer Cap
Inner Cap
Fiber tip
The Combination of Increased Power and Reduced
Devitrification Means…
160
140
In 40 minutes,
XPS / MoXy
removes ~95 gm
of tissue (2x HPS)
Tissue removed (gm)
120
100
In 40 minutes,
HPS / 2090
removes ~47 gm
of tissue
80
60
40
2090 at 120 W
MoXy at 180 W
20
0
0
10
20
30
40
50
60
70
Lasing Time (min)
Result/Benefit:
• XPS w/MoXy removes 2x more tissue than XPS w/2090 (50% greater
beam size and power plus reduced devitrification)
Charles Chabert • Ability to treat large glands with one fiber
Summary




First clinical application over a decade ago
 Significant developments
XPS w/MoXy allow procedures to be completed in
significantly less time while maintaining the excellent
safety profile of HPS and PV
FiberLife offers improved fiber reliability and allows
larger glands to be treated with fewer fibers
TruCoag offers better control of bleeders than any
previous GreenLight console
Charles Chabert