Gammex PROBE+ GLD-250, GLD-450 PROBE+ Diode Laser User's Guide

PROBE+
Diode Laser
GLD-250
GLD-450
User’s Guide
Table of Contents
Introduction and Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Storage and Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Enviromental Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Location of Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operator Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Simplified Room Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Laser Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1
Movement of Crosshair and Sagittal Lines . . . . . . . . . . . . . . . . . 1 4
Coarse Carriage Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5
Fine Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5
Additional Coarse Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6
Line Adjustment Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7
Fine Line Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 8
Curvature Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 9
Laser Focus Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 9
Single Line Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 0
Line Rotation Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1
Centering Optics over Laser . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1
Second Side Laser Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1
Installation on Angled Walls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4
Ceiling Laser Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6
Sagittal Laser Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 8
Calibration and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 9
Removing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 9
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 0
Ceiling and Sagittal Lasers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 0
Side Lasers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 0
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 0
Troubleshooting, Repair and Maintenance . . . . . . . . . . . . . . . . . 3 1
Replacing Circuit Boad and Laser Diode Assembly . . . . . . . . . . 3 2
Dismantling/Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5
Product Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6
Product Ordering Infomation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7
NOTE: Installation Template was shipped with your patient
positioning unit. For replacement template, please use Gammex
part number: 007657
Installation and User Guide
Dear Valued Customer
Congratulations on your recent purchase of a Gammex
Laser Alignment System! This diode laser product is the
result of many years of continuous quality improvement
of laser technologies. If, after carefully reading this manual,
you have any questions, please contact our Sales and
Service Department at 1-800-Gammex 1.
Introduction
This Installation and User’s Guide includes the information
you will need to safely and efficiently install, operate and
maintain your medical alignment laser. This guide is only
intended for use with Gammex PROBE+ Diode Laser models
GLD–450 (Crosshair) and GLD–250 (Sagittal).
Intended Use
These lasers are intended to be used for aligning patients to
medical diagnostic imaging and radiation therapy equipment
which utilizes ionizing radiation. They are intended to be
used in medical clinic or hospital settings by trained medical
staff. The lasers are not designed to be used around
flammable anesthetics, which present a risk of explosion or
fire. The lasers are not intended to be used in a sterile or
corrosive environment. No other uses intended or implied.
1
Introduction
PROBE+ Diode Laser
Definitions
Symbols
Indicates user to consult accompanying document
(safety) Class II equipment
This symbol indicates that when the end-user
wishes to discard this product, it must be sent to a
separate collection facilities for recovery and
recycling.
General Safety
Signal words are used according to international standards.
The meanings of these signal words are:
DANGER - Indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury. This signal word is to be limited to the
most extreme situations.
WARNING - Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION - Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It may also be used to alert against
unsafe practices. Permitted for property damage only accidents.
Laser
Apertures
Please Do
Not Look Into
Laser
Introduction
2
Installation and User Guide
LASER SAFETY
WARNING - Risk of incorrect diagnosis or treatment. Isocenter of alignment lasers
must coincide with isocenter of diagnostic or treatment equipment. Test alignment of
lasers before use daily for first month of operation and weekly after first month. Newly
installed equipment will shift as building walls and floor settle and as building
materials dry out. Realign lasers to isocenter before use, if they have moved.
CAUTION - Laser Light, risk of eye damage.
• To prevent eye damage, do not stare into beam and do not allow patients to stare
into beam. The normal blink reflex will prevent eye damage. If a patient is unable
to blink normally the laser operator must prevent laser from shining in patient's eye.
Laser is a class II laser.
• Replace laser diode only with assembly provided by Gammex to ensure that laser
power levels do not exceed class II limits.
• Do not adjust sealed potentiometers as power levels could exceed class II limits and
damage the laser diode.
GENERAL
• Sagittal laser - Single vertical line projecting laser
• Crosshair laser - Crossed line projected from laser
• Iso-center - Center point where the X, Y, and Z planes coincide.
Storage and Transportation
• Do not drop
• Non-corrosive environment
• Storage Temperature: -20 - +75° C (-4 -167° F)
• Storage Humidity: 0 - 85% Relative Humidity (no dew condensation)
Environmental Limits:
• Temperature: 0-60° C (32 -140° F)
• Humidity: 0 - 85 % relative humidity (no dew or condensation)
• No flammable anesthetics
• No corrosives
3
Introduction
PROBE+ Diode Laser
Location of Labels
Safety labels are located in two places on
the laser:
1. inside on the laser baseplate.
2. top outside of housing
Location of Labels
4
Installation and User Guide
Operator Controls
A - Cover
B - Red Mylar Window
A
B
C - Power-On Indicator
D - ON/OFF Switch (Push on/push off)
• To turn the laser on: push the ON/OFF button
(D). The Power-On indicator (C) will be lighted.
• To turn the laser off: push the On/Off
switch (D). The Power-On indicator goes dark.
• Some facilities like to connect all the
lasers to one wall switch so all lasers
can be turned on and off from a
C
D
convenient location.
CAUTION - Use of controls or adjustments or
performance of procedures other than those
specified herein may result in hazardous
raditation exposure.
002741 DECAL/CAUTION CLASS II DIODE LASER
CAUTION
LASER LIGHT
DO NOT STARE INTO BEAM
DIODE LASER
1.0 MILAWAT MAXIMUM OUTPUT
630-670nm WAVE LENGTH
CLASS II LASER PRODUCT
5
Operator Controls
PROBE+ Diode Laser
Introduction
GENERAL
All Gammex PROBE+ Laser Alignment Systems provide an optical aid for rapid and accurate patient
positioning and repositioning for therapy and simulator machines.
TECHNICAL DESCRIPTION
Various combinations of the GLD-450 crosshair PROBE+ and the GLD-250 sagittal (straight line)
PROBE+ are used with different systems. The GLD-450 lasers, mounted on each side, beam
crosshairs along the X-axis. The crosshair GLD-450 laser, mounted on the ceiling, beams a crosshair
vertically along the Z-axis. The Sagittal GLD-250 laser beams a straight line in the Z-Y plane.
Installation Requirements
ELECTRICAL
Each laser is provided with a universal power supply (transformer) with an input of 100 to 240 volts at
50 to 60 Hz. The universal power supply plugs into a wall outlet with interchangeable “snap-in” plugs
to fit most outlets. A 1.2 meter (4 foot) power cord supplies 12 volt dc power to the laser with a screwon power plug
TOOLS NEEDED
In addition to some basic tools, such as screwdrivers, hammer and ladder; you may need an electric
hammer drill, plumb bob, level (water or laser level), masking tape and 15M (50 feet) of string. (The
mounting hardware, and 4 allen (hex) wrenches (.050”, 1/8”, 3/32”, & 5/64”) are included with the
lasers.)
Typical Linear Accelerator room Layout shown in Figure 1.
CAUTION: The location of the lasers is determined in relation to the therapy machine’s crosshair and
isocenter. Before installing lasers, ask the physicist to verify that the field light aligns with the
machine’s isocenter.
Pre-Installation
6
Installation and User Guide
°
Figure 1
7
Example Room Layout
PROBE+ Diode Laser
Figure 2
Use a level to line up the
laser exit reference point at
the height of isocenter.
Pre-Installation
8
Installation and User Guide
Pre-Installation
Use a level, see Fig. 2, to line up the laser exit reference point
at the height of isocenter.
Use a level to verify:
PREPARING THE ROOM
• Gantry is level each time
it is rotated
1. Unpack each laser, add the cord and plug into a wall outlet.
• Template is placed
accurately on wall
3. Set gantry and collimator to 0° and level the collimator.
• Crosshairs on wall are
at 90° angles
2. Turn the linear accelerator lamp on.
4. Lower the table as low as possible.
COLLIMATOR CROSSHAIR ACCURACY
The collimator-projected crosshair is used as a reference
when determining the laser locations. The light field should
coincide with isocenter, the gantry should be level and, if
collimator crosshair displacement exists, it should be
compensated for.
1. Project a crosshair onto a piece of paper taped to the table
and mark the center with a dot.
2. Rotate through 360° and mark the center again.
3. If there is a difference between the two dots, find the
center of the distance between the two dots. Mark this
point and use this point as the crosshair center reference
point. Use this point to line up the laser.
USING THE LEVEL
Use a level, see Fig. 2, to determine the height of the laser exit
reference point when installing lasers in a simulator room or in
a room with angled walls. In standard treatment rooms, the
level should also be used to verify the laser location.
1. Raise the table to the front pointer (isocenter).
2. Line up with the table edge and with the wall. Figure 2
3. The line on the wall indicates the horizontal axis of the
laser exit reference point.
9
Pre-Installation
PROBE+ Diode Laser
Figure 3
Rotate the gantry
90° and project
a crosshair onto
the wall.
Figure 4
Use a string to
verify the location
of the side lasers.
Side Laser Installation
10
Installation and User Guide
Installing Lasers
SIDE LASER INSTALLATION
For all GLD-450 installations.
For angled walls, refer to section Installation on Angled Walls.
Use a level to verify:
• Gantry is level each time
it is rotated
• Template is placed
accurately on wall
• Crosshairs on wall are
at 90° angles
1. Rotate the gantry 90° to the 270° position and project a
crosshair onto the wall. Figure 3
2. Use a pencil and straight rule to trace the crosshair onto the
wall.
3. Line up the mounting template from back of this manual, so
that the projected crosshair lines up with the laser exit point
on the mounting template. Use a level to line up the
mounting template.
4. Mark the outer edge of the mounting template and also mark
the mounting holes.
5. Rotate the gantry 180° to the 90° position and repeat steps 24 on the opposite wall.
6. Return the gantry to 0°.
7. Tape a piece of paper to the table.
8. Project a crosshair onto the paper, keep the field as wide as
possible.
9. Hold the ends of a plumb bob on each wall until string
shadow is in line with projected crosshair. Figure 4
10. The point at which the string hits the wall is the center of the
laser exit point. Mark the center on the wall. Use the
mounting template to verify the location of the mounting
holes.
11. Drill the mounting holes.
12. Remove the PROBE+ Laser from its carton. Loosen the
screw at the top of the cover. Slide the cover up, to
disengage it, and lift the cover off. Remove any packing
material from the optics.
13. Attach washers and screws with mounting spacers as shown
in Figure 5. Mount the laser to the wall Figure 5. Laser must
be firmly mounted. Oversized holes provide flexibility to line
up the exit reference, Use suitable anchors. Wall anchors
for masonry are provided in the mounting kit. Use a 3/8”
diameter drill for the provided anchors.
11
Side Laser Installation
PROBE+ Diode Laser
B
A
E
F
Figure 5
Mount the base
plate to the wall
with the supplied
mounting hardware.
C
D
Use the template
to indicate where
on the wall to
mount the laser.
A:
B:
C:
D:
E:
F:
Side Laser Installation
12
Exit Reference
Base Plate
Laser Assembly
End Plate
Mounting Screws
Washers
Installation and User Guide
Installing Lasers
SIDE LASER INSTALLATION (continued)
14. Do not replace the cover at this time.
15. Plug in the power supply. Attach the threaded power plug to the bottom of the laser. Turn on
the laser. The push switch will toggle on and off. The LED near the power switch should light
and the laser lines project.
16. Rotate the gantry 90° (so that the crosshair is projected onto the laser) and tape a piece of
paper to the gantry head, covering the projected light field.
17. Adjust the laser so that the laser crosshair lines up with the collimator cross hair. Refer to the
following pages for the methods for making laser adjustments.
18. Place a piece of paper directly in front of the laser.
19. Verify that the center of the projected collimator crosshair is centered on the top laser lens.
20. Adjust for straight lines if necessary. Refer to the following pages.
21. Turn off the laser.
22. Place the cover on the laser. Slide it downward until seated, and then finger-tighten the screw
at the top of the cover. Take care not to jolt or bang the laser.
23. Check the alignment of the laser several times. Use the fine adjustments for minor
adjustments.
24. Return the gantry to 0°.
The PROBE+ laser has both coarse and fine adjustments on the horizontal and vertical
position of the crosshair.
The fine adjustments have limited range and are set in the middle of range during factory
calibration. If the limit of range is reached, turn the fine adjustment several turns in the other
direction. Then use the coarse adjustment to move close to the desired position. Finally, use
the fine adjustment to finalize the correct position.
At installation the coarse adjustments should be used to position the crosshair close to the right
position and then the fine adjustment can be used to accurately locate the crosshair.
After positioning the crosshair close to the proper location with the coarse adjustment, use the
fine adjustment to finely position the crosshair horizontally. Turn the adjustment to rotate the
optics, moving the crosshair left or right.
Focus, angularity and line adjustments at installation: Adjustments are available if required,
and these are explained on the following pages.
Brightness of the laser beam is factory set at the maximum allowable. Increased brightness
will damage the laser. Consult the factory for reducing brightness.
13
Side Laser Installation
PROBE+ Diode Laser
Movement of Crosshair and Sagittal Lines
Figure 6
Laser Positioning Adjustments
14
Installation and User Guide
Coarse Carriage Adjustments
The carriage on which the laser is seated can be moved both horizontally and
vertically using the tools included in calibration kit.
Course
Vertical
Adjustment
C
B
B
D
D
A
Course Horizontal Adjustment
Coarse vertical adjustment of the laser carriage.
Loosen the large allen (hex) screws (B) with a 1/8" allen (hex) wrench; do not
loosen too much.
Now use the wrench to turn the setscrew (A), which moves the carriage vertically.
When vertical adjustment is satisfactory, tighten the large allen (hex) screws (B)
firmly.
Coarse horizontal adjustment of the laser carriage.
Loosen the large allen (hex) screws (D) with a 1/8" hex wrench; do not loosen too
much.
Now use the wrench to turn the setscrew (C), which moves the carriage horizontally.
When horizontal adjustment is satisfactory, tighten the large allen (hex) screws (D)
firmly.
15
Laser Positioning Adjustments
PROBE+ Diode Laser
Additional Coarse Adjustment
The PROBE+ vertical line optics can be coarsely adjusted by
rotating the turret. To make this adjustment, loosen the setscrew
shown below using a .050” allen (hex) wrench. The entire optics
assembly can be rotated by hand, left or right, to move the crosshair
horizontally. This is a very coarse adjustment. The setscrew must
then be re-tightened. A fine-tuning adjustment can then be used to
accurately position the crosshair.
Laser Positioning Adjustments
16
Installation and User Guide
Line Adjustment Components
The PROBE+ has both coarse and fine line positional adjustments available. The
adjustment components are identified in Figure 7 below.
A
F
G
E
B
I
H
F
H
C
D
Figure 7
A. Mirror adjustment screw
B. Beam splitter adjustment:
C. Locking setscrew:
Coarse rotational adjustment
D. Horizontal Adjustment Screw
F. Lens adjustment screws
G. Lens angle adjustment screws
H. Line focus adjustment lever
I. Focus lock screw
E. Vertical Adjustment Screw
17
Laser Positioning Adjustments
PROBE+ Diode Laser
Fine Line Positioning
Both of the following adjustments can be made with the cover either on or off. These
adjustments may need to be repeated multiple times during the installation process and are
available for customer use.
FINE HORIZONTAL POSITIONING
After positioning the crosshair close to the proper location with the coarse adjustment, use the
fine adjustment screw (Figure 7 D) to finely position the crosshair horizontally as shown below.
FINE VERTICAL POSITIONING
After positioning the crosshair close to the proper location with the coarse carriage adjustment,
Use the fine adjustment screw (Figure 7 E) to finely position the crosshair vertically as shown
below.
Laser Positioning Adjustments
18
Installation and User Guide
Line Clarity and Additional Positional Adjustments
Line curvature, focus, and angularity are factory set and should not require
adjustments at installation. However if required, they are explained on the following
pages. These adjustments can only be made with the cover removed.
CURVATURE ADJUSTMENTS
The line curvature may be adjusted by using the two adjustment screws (Figure 7 F) on
the right hand side of the optics. A 3/32" allen (hex) wrench is required.
LASER FOCUS ADJUSTMENT
The focus of the PROBE+ can be adjusted as follows:
Remove the cover, if necessary.
The focus adjustment is a silver colored lever (Figure 7 H) on the operators right hand
side of the optics. On the opposite (left hand) side of the optics is a set screw
(Figure 7 I) in a deep angled hole. Loosen the locking set screw using a 0.050” allen
(hex) wrench.
Focus the crosshair by moving the lever to concentrate the crosshair into fine lines.
Re-tighten the setscrew (Figure 7 I).
Replace the cover and check the crosshair focus and alignment.
19
Laser Positioning Adjustments
PROBE+ Diode Laser
Additional Positional Adjustments
Figure 8
SINGLE LINE ADJUSTMENTS
The two adjustments on the left hand side of the
optics move either line of the crosshair up or
down with respect to the other line.
Use a 3/32" allen (hex) wrench.
MIRROR ADJUSTMENT SCREW
This upper screw moves the horizontal line up
and down. Figure 8
Figure 9
BEAM SPLITTER ADJUSTMENT SCREW
This lower screw moves the vertical line up and
down. Figure 9
Laser Positioning Adjustments
20
PROBE+ Diode Laser
Installation and User Guide
Line Rotational Adjustments
Figure 10
ROTATE HORIZONTAL LINE
The horizontal line of the crosshair can be rotated
as follows. Loosen the locking set screw, as
shown, on the right side of the upper lens holder.
Use a .050" allen (hex) wrench. Rotate the lens
holder by hand. Use care not to touch the lens
or upset the factory calibration of the lens or the
mirror.
A
B
Figure 10 A
ROTATE VERTICAL LINE
The vertical line of the crosshair can be rotated
as follows. Loosen the locking set screw, as
shown, on the right side of the lower lens holder.
Use a .050" allen (hex) wrench. rotate the lens
holder by hand. Use care not to touch the lens
or upset the factory calibration of the lens or the
mirror.
Figure 10 B
CENTERING
OPTICS OVER LASER
The PROBE+ optics are factory set to be
centered on the laser diode. Adjustment must
be done by factory.
Second Side Laser Installation
Repeat the process, on the opposite wall, used to
mount the first laser.
21
Laser Positioning Adjustments
PROBE+ Diode Laser
Figure 11
Use a sheet of
typing paper to
verify the placement
of the side lasers.
.
Figure 12
Use a front pointer
to verify that the
side lasers hit
isocenter.
Additional Installations
22
PROBE+ Diode Laser
Installation and User Guide
Figure 13
Use a string to verify the
location of the side lasers
23
Additional Installations
PROBE+ Diode Laser
Installation on Angled Walls
1. When mounting on Angled Walls, cut out, fold and
tape to the mounting template the strip of paper
provided with the template. This strip approximates
the distance to the center of rotation of the top lens of
the laser optics.
Use a level to verify:
• Gantry is level each time
it is rotated
• Template is placed
accurately on wall
• Crosshairs on wall are
at 90° angles
2. Use a level to determine the height of the laser exit
reference point. (Refer to Pages 9 & 10).
3. Set gantry at 0°, tape a piece of paper to the table.
4. Project a crosshair onto the paper, keeping the field
as wide as possible.
5. Hold the ends of a string on each wall until the string
shadow is in line with the projected crosshair. Several
people may be needed. See Figure 13.
6. On each wall use the template with its extension.
Move the template until the string touches the X on
the extension. That is the center of the laser exit
reference point. Level the template and mark the
mounting holes.
7. Drill the mounting holes.
8. Mount the laser. Adjust the turret of the laser by
loosening the setscrew and rotating the optics until
the laser crosshair lines up with the gantry pointer.
Tighten the setscrew. Use the fine adjustments to
make any additional corrections horizontally.
QUICK laser lines overlap
front pointer lines up
with the laser lines
lines are straight up
and down
lines are level on the
horizontal axis
lines are sharp
and focused at the
isocenter
9. Repeat the process on the other side laser.
10. Laser should form a continuous plane.
11. Place a piece of paper in the path (Figure 11 & 12)
and verify and correct as needed:
NOTE: If there is no front pointer, raise the table to
isocenter and align the lasers with the table edge.
Additional Installations
24
PROBE+ Diode Laser
Installation and User Guide
X
Figure 14
Use a plumb bob to
determine the placement
of the ceiling laser.
25
Additional Installations
PROBE+ Diode Laser
Ceiling Laser Installation
1. Level gantry at 0° and place the table at isocenter
height.
2. Tape a piece of paper to the table.
Use a level to verify:
3. Project a crosshair and mark the center point
with a pencil.
• Gantry is level each time
it is rotated
4. Move collimator out of the way.
• Template is placed
accurately on wall
• Crosshairs on wall are
at 90° angles
5. Hold a plumb bob from the ceiling so that the bottom
weight hits the dot on the table. The point at which
the string hits the ceiling indicates the laser exit
reference point. Mark this with a pencil. Figure 14
6. Use the template to mark the location of the
mounting holes.
7. Drill the mounting holes.
8. Unplug the laser power supply and remove the cover.
9. Attach washers and screws and mount the laser to
the ceiling.
10. Plug in power supply and turn on laser.
11. The center of the laser crosshair should correspond
with the dot on the table.
12. Raise and lower the table. The crosshair should align
for the entire course. Refer to Laser Positioning
Adjustments on pages 14 through 21.
NOTE: If mounted in a recess, cut a hole in the ceiling
tile large enough to allow the entire cross to be
projected.
Additional Installations
26
PROBE+ Diode Laser
Installation and User Guide
Figure 15
Use a string and the ceiling
laser crosshair to determine the
placement of the sagittal laser.
27
Additional Installations
PROBE+ Diode Laser
Sagittal Laser Installation
The Sagittal Laser is mounted high on the wall (room
layout). Minimum height: 7', the higher the better.
1. Set the table to isocenter height.
Use a level to verify:
• Gantry is level each time
it is rotated
• Template is placed
accurately on wall
• Crosshairs on wall are
at 90° angles
2. Use the crosshair from the ceiling laser as a reference
and tape a plumb bob string to the center of the table
so that the string shadow aligns with the crosshair.
(Point A in Figure 15)
If your system does not contain a ceiling laser, use the
collimator-projected crosshair. Be sure to check for
collimator accuracy. (Refer to page 9).
3. Move the table up and down to verify tracking of the
string shadow.
4. The point at which the string hits the wall indicates the
center of the vertical laser exit reference point. (Point
B in Figure 15)
5. Use the template to determine the location of the
mounting holes.
6. Drill the mounting holes.
7. Unplug the laser power supply and remove the cover.
QUICK 8. Attach washers and screws and mount the laser
to the wall.
9. Plug in power supply turn on laser.
laser lines overlap
front pointer lines up
with the laser lines
lines are straight up
and down
lines are sharp
and focused
10. Verify that the laser line tracks the crosshair projected
onto the table.
Additional Installations
28
PROBE+ Diode Laser
Installation and User Guide
Calibration and Adjustments – PROBE+
Warning - Risk of incorrect diagnosis of treatment.
• Isocenter of alignment lasers must coincide with isocenter of diagnostic of
treatment equipment. Test alignment of laser daily, before use, for first
month of operation and weekly after first month. Newly installed
equipment will shift as building walls and floor settle and as building
materials dry out. Re-align lasers to isocenter before use, if they have
moved.
• The laser must be aligned with the diagnostic or therapy equipment to be
safely useful. Only a GAMMEX service technician, Medical Physicist,
Biotech Engineer or Service Technician should perform alignment.
Caution - Laser Light Risk of eye damage. Do not stare into beam.
• Alignment procedures need to be performed with laser on.
• Look only at laser light reflected from a diffuse surface (like paper or a
wall).
See Simplified Room Layout for general concept of laser alignment.
Removing the Cover
Some adjustments and repairs require the removal of the cover. Remove this
cover, as follows: First, turn off the laser. Unplug the power cord from the AC
receptical and from the PROBE+ laser. Loosen the screw at the top of the
cover using your fingers. Slide the cover up, to disengage it, and lift the cover
off and away.
Plug in the power cord and on laser for adjustments.
To replace the cover after making adjustments, reverse the process. Turn off
the laser. Unplug the power cord. Tilt the top of the cover slightly away from the
wall. Slide the bottom tab on the cover under the bottom end plate. Tilt the top
of the cover toward the wall until the screw is aligned with the hole in the top
end plate. Secure the cover by finger tightening the screw.
Take care not to jar the laser.
Plug in the power cord.
29
Laser Calibration and Adjustments
PROBE+ Diode Laser
Calibration and Adjustments – PROBE+
GENERAL
Test the alignment of the lasers daily, before use, for the first month after installation.
After the first month test the system at least weekly. Isocenter of the alignment lasers
must coincide with the isocenter of the diagnostic or treatment equipment.
CEILING AND SAGITTAL LASERS
Tape a piece of typing paper to the table under the gantry (Leveled and Set at 0°).
Project a crosshair on the paper from the gantry. Mark the center point. Move the
gantry out of the way. Project the Ceiling laser crosshair on the paper. Raise and lower
the table. The center of the crosshair should align with the dot on the paper. In the
same way the Sagittal line should pass through the dot on the paper.
SIDE LASERS
Turn on both side lasers. Use a piece of typing paper held perpendicular to the laser
light. The two-projected laser crosshairs should line up on the paper (Figure 11).
With the gantry at 0° (Leveled and Set at 0°) use a front pointer (Figure 12) to verify that
both side lasers hit isocenter. If there is not a front pointer, raise the table to isocenter
and project a crosshair on the table to verify that the side lasers hit isocenter.
ADJUSTMENTS
In a new installation some building movements can be expected. In most cases the fine
adjustments made by turning the knobs as shown on pages 17 should be sufficient to
make any adjustments.
The fine adjustments have limited range. If the fine adjustment is at the end of the
range, turn the knob several turns in the opposite direction. Use a coarse adjustment to
come close to the desired position and use the fine adjustment to zero in.
Pages 14 through 21 outline various adjustments available on the PROBE+. In most
cases only the fine horizontal and vertical adjustments will be needed.
Laser Calibration and Adjustments
30
PROBE+ Diode Laser
Installation and User Guide
Troubleshooting
PROBLEM
NO LASER LIGHT
POSSIBLE CAUSE
POSSIBLE REMEDY
Wall switch not on.
Check switch by turning laser
off and on.
Wall switch not in full on
position.
Verify switch lever is in the full
on position.
Plug/connector not plugged in. Verify plug is in the fully
Plug partially plugged in.
plugged in position.
Power supply not functioning.
INTERMITTENT LASER
Use voltmeter to measure the
voltage output of the power
supply wall plug. If voltage less
than 11 or greater than 13 VDC,
the power supply will need to
be replaced. Call Gammex
Sales and Service for
assistance.
Use voltmeter and check power
supply. See above.
Repair
Warning - Use only repair parts specified by Gammex. Some parts may be similar, but may
result in unit drifting out of alignment, early failure or being out of compliance with laser
regulations.
Maintenance & Cleaning
Once installed, Gammex Lasers require no maintenance other than cleaning of mirrors,
beam splitters, and lenses according to standard optical practices. Occasional outside
dusting of the red plastic window in the cover may be necessary. The window is very
delicate. Use only a camera lens brush or other soft brush for this purpose. Clean other
outside surfaces of the laser, receiver and transmitter with a soft cloth slightly moistened
with water or a mild detergent solution, then wipe the surface with a dry cloth. Do not use
any type of abrasive pad, scouring powder or chemical solvent such as thinner, benzene,
alcohol or disposable wipes as these may damage the finish. Should a laser fail to
function properly, contact Gammex Sales and Service.
31
Troubleshooting
PROBE+ Diode Laser
Repair
REPLACING THE CIRCUIT BOARD AND LASER DIODE ASSEMBLY
CAUTION: Laser Light. Risk of eye damage.
If the Laser Light fails it can be easily replaced with a new laser diode.
-Lasers must be less than 1 mw to meet Class II power levels. The
laser diode and circuit board must be replaced as a set since they are
adjusted at the Gammex factory to meet Class II power limits.
-Do not dismantle the laser diode assembly as this could cause
exposure to laser radiation exceeding Class II limits. No user
repairable parts are inside this assembly.
-If the laser diode or circuit board fails, they can be easily replaced with
a new assembly.
TOOLS REQUIRED:
5/64" .050” & 1/16” allen (hex) wrenches.
1. Turn the power off. Remove the 12 vdc power plug. Remove the
power plug cord. Remove the cover by unscrewing the latch on the
top and rotating it down and out to clear the switch and power jack.
2. In performing this replacement, handle the material carefully and take
care not to lose the hardware.
3. Loosen the swivel screw using a 0.050” allen (hex) wrench and rotate
the optics module 90 degrees to either side.
4. Remove the flat head screw using a 5/64” allen (hex) wrench. It is
easier to remove these screws, and slide out the focus module, if the
tension on the optics has been released. To release the tension on
the optics module, pinch the top of carriage, squeezing it between
your thumb and fore finger. It will rotate against the spring tension.
5. Rotate the optics module to the 90 degree position on the other side
(Rotate 180 degrees).
6. Remove the second flat head screw using a 5/64” allen (hex)
wrench. This will free the focus module (with the small circuit board).
Slide this module out to the side where the cable comes out. Take
care not to disrupt the optics module.
Repair and Parts Information
32
PROBE+ Diode Laser
Installation and User Guide
REPLACING THE LASER DIODE
7. Remove the two button head screws using a 1/16” hex wrench, that
hold the laser diode/circuit board assembly to the focus module.
Remove the laser/circuit board assembly.
8. Remove the two # 6 button head screws, using a Phillips screwdriver,
that hold the large circuit board to its bracket. The complete
laser/electronics assembly has now been removed.
9. Replace the two circuit boards and laser assembly.
10.Reassemble the unit reversing the dis-assembly process. Do not put
the cover on, at this time. Plug in the power cord and turn the laser on.
11.Focus the laser and check the alignment and make adjustments (See
the Calibration and Adjustments Section.).
12.Lasers are shipped with brigthness at the maximum allowed. Do not
turn up the brightness over this level. It will cause the laser to burn out.
The brightness is controlled on the large circuit board by the silver
screw on a potentiometer. This screw has a single slot and points
perpendicular to the circuit board.
13.Turn off the PROBE+. Unplug the power cord. Replace the cover. Reattach the power cord and turn the PROBE+ on. check the alignment
again.
Return this assembly to Gammex. Call Gammex Sales and Service at
1-800-GAMMEX-1
DISMANTLING
The PROBE+ can be removed from the wall by following the reverse of the
installation instructions.
DISPOSAL
The PROBE+ laser contains steel, aluminum, lead, lead alloys copper,
glass, brass, lead-free paint and plastic. Recycle according to your
applicable laws.
33
Repair and Parts Information
PROBE+ Diode Laser
Parts List
PART NO.
DESCRIPTION
601955
PCB, Diode, PROBE + Sub
Assembly
007622
POWER SUPPLY 12VDC
Universal Medical Grade
POWER SUPPLY PLUGS
Set of 4
006223
WINDOW:
RED LENS
Repair and Parts Information
34
PROBE+ Diode Laser
Installation and User Guide
Specifications
Laser Beam Output
Maximum Power....................................Less than 0.5 mW (each beam)Laser Class II
Range ..............................................................................................Up to 6.0 m(20 ft.)
Line Width........................................................................0.5 mm(0.02in) @ 2 m (7 ft.)
Beam (Line) Divergence .....................................................................................15-17°
Drift .................................................................................................No measurable drift
WaveLength .......................................................................6350Å (635 nm) visible red
Visibility ...............................................................Clearly visible in strong ambient light
Intensity .....................................................................User adjustable to desired levels
Pulse Duration and Repetition Rate..............................Continuous (No Pulse) Output
Laser Beam Adjustment
Horizontal Range of Vertical Projection...............330.2 cm (±130 in.) @ 3.05 m (10ft.)
Vertical Range of Horizontal Projection.......Plus 100 cm /minus 300cm @ 3 m (10 ft.)
Line angle adjustment range ...................................................................±180 degrees
Mounting Turret................................................................................ adjustable to ±45°
Laser Dimensions
Length................................................................................................17.3 cm (6.8 in.)
Width..................................................................................................14.0 cm (5.5 in.)
Depth. ..................................................................................................8.0 cm (3.1 in.)
Weight.................................................................................................1.8 kg (4.0 lbs.)
Universal Power Supply................includes adapters for U.S. and international use.
Power Requirements........................................................................12 VDC, 300mA
Environmental Conditions
Operating Temperature:................................................................................0 - +60oC
Storage Temperature:................................................................................-20 - +75oC
Operating Humidity: ....................30 - 85% Relative Humidity (no dew condensation)
Storage Humidity:........................30 - 85% Relative Humidity (no dew condensation)
Certification
Complies with Center for Devices and Radiological Health regulations for Class II Lasers.
Compliance Information
Complies with 21 CFR 1040.10 and.11:April, 2008 for Class II visible lasers.
Complies with IEC 60825-1:2007 for Class II visible lasers.
Complies with IEC 61140:2001 for Class II equipment.
CE marked.
Power supply UL, cUL, GS and CE marked.
35
Specifications
PROBE+ Diode Laser
Technical Support
Technical support is available from Gammex Service Representatives who
are available to work with facility planners, architects and hospital personnel
throughout the planning and installation process.
Contact the Gammex Service department at 1-800-232-9699.
Product Warranty
Gammex Inc. warrants its patient positioning equipment to be free from
defects in materials and workmanship under normal use and service for 1
year from the date of shipment. The sole obligation of Gammex Inc. under
this warranty is to repair or replace without charge or to refund the
purchase price, at the option of Gammex Inc., of any parts which its
examination shall have disclosed to be defective, provided that Buyer shall
have given to Gammex Inc., a written notice of the claimed defect no later
than 7 days after the end of the warranty period (one (1) year of the date of
shipment of such equipment to Buyer). At the request of Gammex Inc.,
Buyer, at its expense, shall return the claimed defective part to Gammex
Inc.
THIS CLASS II LASER PRODUCT COMPLIES
WITH DHHS REQUIREMENTS PURSUANT TO
21 CFR, SUB-CHAPTER J.
DISCLAIMER OF OTHER WARRANTIES
The aforesaid warranty rights are buyer's exclusive remedies and are in lieu
of any other remedies, obligations, or rights, including, without limitation,
any other warranties, expressed or implied (e.g., implied warranties of
merchantability or fitness for a particular purpose). Under no circumstances
shall Gammex Inc. be liable for any incidental, indirect, special or
consequential damages or for any other loss, damage, penalty or expense
of any kind, including, without limitation, loss of profits or overhead,
reimbursement, personal injury or property damage. The aforesaid
warranty obligation of Gammex Inc. constitutes its sole liability, and under
no circumstances, shall the maximum liability of Gammex Inc., under any
legal theory(e.g., contract, warranty, negligence, promissory estoppel, strict
liability, misrepresentation, tort) and for any reason whatsoever(e.g., defect,
delay or otherwise) exceed the purchase price of the defective part
regardless whether the claim is asserted by buyer or any other person or
entity. The liabilities of Gammex Inc. as above set forth, shall not be
extended because of advice given by it in connection with the design,
installation or use of the equipment or parts therefore.
Your warranty may be registered at http://www.gammex.com/warranty.asp
Product Warranty
36
Product Ordering Information
and Customer Service
Gammex is committed to satisfying our customers’ needs. If you have any
questions, comments or suggestions regarding our products and service, please
call or fax us. Please contact a GAMMEX dealer or representative for a
quotation or for a detailed description of our ordering policies, warranties,
delivery policy, conditions of sale, damaged goods policy, and returned goods
policy.
In the United States, Sales Department hours are:
7:30 a.m. through 5:00 p.m. (Central Time).
SALES/CUSTOMER SERVICE:
608-828-7000
TOLL FREE (U.S. and Canada only):
800-426-6391
FAX:
608-828-7500
Sales e-mail:
[email protected]
In the United States, Service Department hours are:
7:30 a.m. through 5:00 p.m. (Central Time).
SERVICE DEPARTMENT:
608-828-7000
TOLL FREE (U.S. and Canada only):
800-232-9699
FAX:
608-828-7500
Service e-mail:
[email protected]
GAMMEX, Inc.
7600 Discovery Dr.
P.O. Box 620327
Middleton, WI 53562-0327 USA
On the internet at: www.gammex.com
VISA, MasterCard and American Express accepted.
All products and specifications are subject to change without notice.
© 1997 GAMMEX. All rights reserved.
Printed in U.S.A. 006991-00-03
GAMMEX
7600 Discovery Dr.
P.O. Box 620327
Middleton, WI 53562-0327 USA
1 800 GAMMEX 1 (426-6391)
1 608 828 7000
Fax: 1 608 828 7500
www.gammex.com
e-mail: [email protected]
GAMMEX-RMI LTD
Broadway Business Centre
32A Stoney Street
Nottingham NG1 1LL
United Kingdom
+44 0115 92474188
Fax: +44 0115 9247189
e-mail: [email protected]
GAMMEX-RMI Gmbh
Bergstrasse 2
35398 Giessen
Germany
+49 6403 774 2293
Fax: +49 6403 774 2526
e-mail: [email protected]