Mediso Nucline SPIRIT DH-V User manual

Nucline TM SPIRIT DH-V
DUAL - HEAD SPECT AND WHOLE BODY
DIGITAL GAMMA CAMERA
Service Manual
Revision 1.02

Acquisition software release: v.7.03
The information and drawings set forth in this manual are the property of Mediso Ltd. No part
of this document may be copied without the prior consent of Mediso Ltd.
Manufacturer reserves the right to revise or update the contents of this manual due to
modifications or improvements in the design of the equipment without obligation to notify any
person or organization of such changes.
Nucline is a registered trademark of Mediso Ltd.
Other brand or product names are trademarks or registered trademarks of their respective
holders.
Mediso Ltd. - Medical Imaging Systems
Address: H-1022 Budapest, Alsótörökvész út 14. HUNGARY
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]

Revision 1.02 3/216
Disclaimer
Mediso Ltd. and its official representatives may not be held responsible for personal injury or
damage of any kind, expressed or implied, caused by, or emerging out of the use of this
equipment, if equipment is not operated in adherence to operating and maintenance
procedures set forth in this manual.
Users exchanging files and diskettes should beware of the risk of computer viruses. Damage
caused by user provided programs, scripts, or computer viruses are NOT warranted by
Mediso Ltd.
Warning
Electrical
Failure to provide an adequate earth ground circuit can result in a shock
hazard which can cause serious personal injury.
Only properly trained personnel should be permitted access to any internal
part of the equipment. Live electrical terminals and components inside electronics cabinets
can present a shock hazard and can cause serious or fatal injury.
Maintenance and service routines beyond those mentioned in this manual must be referred
to service personnel authorized by the manufacturer. In the absence of appropriate
instructions in this manual do not attempt to make service work on the equipment.
When this equipment is interconnected with other electrical appliances in its normal
operation, it is important, that these other appliances also be provided with adequate
grounding protection. Faults occurring in any interconnected appliance can degrade the
safety of this product.
Mechanical
All moveable assemblies and supporting structures should be operated with care and
routinely inspected. Any collision which could damage the equipment, worn components,
unusual noises or difficulties in operation should be reported to the manufacturer's office
immediately.
Radiation
This equipment does not generate any hazardous radiation. When using radioactive isotopes
or compounds, safe and proper handling techniques should always be observed. If
radioactive contamination occurs, use the decontamination agent and method as described
in your site protocol to clean the outside of the equipment.

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ECN Rev. Date Description Pages Approved
0000306 1.01 2006.05.05. New document all
0000534 1.02 2006.07.12 DR interface panel
changing 77 - 85

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Table of contents
Disclaimer .............................................................................................................................................. 3
Warning .................................................................................................................................................. 3
Electrical .............................................................................................................................................. 3
Mechanical........................................................................................................................................... 3
Radiation.............................................................................................................................................. 3
Table of contents ...................................................................................................... 5
Introduction ............................................................................................................... 9
Scope of manual ..................................................................................................... 10
Text Conventions Used in this Manual ................................................................. 11
Chapter 1. Safety and Regulatory Information................................................... 12
1.1 General Safety........................................................................................................................... 12
1.1.1 Electrical Safety................................................................................................................... 13
1.1.2 Mechanical Safety ...............................................................................................................15
1.1.3 Radiation ............................................................................................................................. 15
1.2 IEC Symbols Used.................................................................................................................... 16
1.3 Safety Devices .......................................................................................................................... 17
1.3.1 Emergency Stop Button ...................................................................................................... 18
1.3.2 Preventing Collisions...........................................................................................................18
1.4 Patient Safety and Emergency Egress................................................................................... 20
1.4.1 Patient Handling .................................................................................................................. 20
1.4.2 Patient Positioning............................................................................................................... 20
1.4.3 Emergency Egress .............................................................................................................. 21
1.4.4 Power Failure Procedure..................................................................................................... 21
1.4.5 When Electrical Power is Restored..................................................................................... 21
1.5 Data Safety ................................................................................................................................ 22
1.5.1 General................................................................................................................................ 22
1.5.2 Connectivity ......................................................................................................................... 22
1.6 Safe Operation Guidelines.......................................................................................................22
1.7 Safety Labels............................................................................................................................. 23
1.8 Regulatory Information ............................................................................................................ 24
1.8.1 Standard Compliance.......................................................................................................... 24
1.8.2 USA Regulations .................................................................................................................25

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Chapter 2. Camera overview................................................................................ 26
2.1 General description .................................................................................................................. 26
2.1.1 System components ............................................................................................................ 26
2.1.2 The system connections...................................................................................................... 30
2.2 DH-V Gantry............................................................................................................................... 32
2.2.1 Gantry hardware.................................................................................................................. 32
2.2.2 Gantry computer.................................................................................................................. 32
2.2.3 Detector heads .................................................................................................................... 34
2.2.4 Gantry electronics................................................................................................................ 34
2.2.5 Handcontroller ..................................................................................................................... 34
2.3 Acquisition console.................................................................................................................. 36
2.3.1 Color monitor ....................................................................................................................... 36
2.3.2 Mouse.................................................................................................................................. 37
2.3.3 Keyboard ............................................................................................................................. 38
2.3.4 Nucline Electronics Rack .................................................................................................. 39
2.4 Imaging table............................................................................................................................. 42
2.4.1 Telescopes .......................................................................................................................... 42
2.4.2 Motor.................................................................................................................................... 42
2.5 Collimators and collimator carts............................................................................................. 43
2.5.1 Collimators........................................................................................................................... 43
2.5.2 Collimator carts.................................................................................................................... 43
2.6 Gantry Operation Modes..........................................................................................................44
2.6.1 Normal Mode ....................................................................................................................... 44
2.6.2 Collision Mode ..................................................................................................................... 45
2.6.3 Emergency Mode ................................................................................................................ 46
2.6.4 Service Mode....................................................................................................................... 47
2.6.5 Calibration Mode ................................................................................................................. 48
2.6.6 Error Mode........................................................................................................................... 49
Chapter 3. Construction guide ............................................................................ 50
3.1 Changing radius motor timing belt......................................................................................... 50
3.2 Changing radius motor ............................................................................................................ 55
3.3 Changing radius servo amplifier............................................................................................. 55
3.4 Changing gantry rotate motor timing belt.............................................................................. 57
3.5 Changing gantry rotate motor................................................................................................. 58
3.6 Changing gantry rotate servo amplifier ................................................................................. 59
3.7 Changing PC 104 module ........................................................................................................ 61
3.8 Changing radius controller circuit.......................................................................................... 63
3.9 Changing detector cable.......................................................................................................... 64
3.10 Changing collimator lock panel........................................................................................... 66
3.11 Collimator cart adjustment................................................................................................... 68

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3.12 Head removal ........................................................................................................................ 74
3.13 Head installation ................................................................................................................... 83
3.14 AMC servo burning...............................................................................................................91
Chapter 4. Software adjustment.......................................................................... 94
4.1 Installation of the operating system of the Console electronics......................................... 95
4.1.1 Preparation of the Console electronic rack ......................................................................... 95
4.1.2 Preparing the completely new Console computer to start the installation of the OS.......... 95
4.1.3 Switching ON a completely new Console computer ........................................................... 95
4.1.4 Preparation of the Basic Input / Output System (BIOS)...................................................... 95
4.1.5 Checking and modifying the BIOS pages ........................................................................... 97
4.2 Windows 2000 install ............................................................................................................. 101
4.2.1 Partitioning of the Hard Disk Drive: ................................................................................... 101
4.3 Console Software Installation Procedure ............................................................................ 114
4.3.1 Start the installation process ............................................................................................. 117
4.3.2 Setup new Camera application ......................................................................................... 119
4.3.3 Modify settings .................................................................................................................. 130
4.3.4 Backup application ............................................................................................................ 135
4.3.5 Until you reach the finish. .................................................................................................. 140
4.4 Gantry Software Upgrade ...................................................................................................... 140
4.4.1 How to start Gantry Software Upgrade? ........................................................................... 140
4.4.2 Host side (left side)............................................................................................................ 141
4.4.3 Gantry side (right side) – gantry computer........................................................................ 141
4.4.4 How to modify CFG files.................................................................................................... 142
4.4.5 How to create LOG file ...................................................................................................... 143
4.5 Result of the driver installation............................................................................................. 143
Folders after installation:.................................................................................................................. 144
4.5.1 Directory of c:\console....................................................................................................... 144
4.5.2 Directory of c:\gantry ......................................................................................................... 153
4.5.3 Directory of D:\CameraBackup ......................................................................................... 155
4.5.4 Directory of D:\ConsoleInstall............................................................................................ 155
4.5.5 Directory of D:\Delete Later............................................................................................... 157
4.5.6 Directory of D:\Img ............................................................................................................ 157
4.5.7 Directory of D:\Mediso Upload ......................................................................................... 157
Chapter 5. Calibration ........................................................................................ 158
5.1 Applied devices ...................................................................................................................... 158
5.2 Process of calibration ............................................................................................................ 159
5.2.1 Visual checking ................................................................................................................. 159
5.2.2 Checking the power supply voltages................................................................................. 159
5.2.3 Checking the pre-amplifiers [Factory only!]....................................................................... 159
5.2.4 The PMT gain settings ...................................................................................................... 161
5.2.5 Direction gain settings ....................................................................................................... 162
5.2.6 The offset-setting of the coordinates................................................................................. 162
5.2.7 Coarse high-voltage calibration......................................................................................... 162
5.2.8 The spectrum calibration ................................................................................................... 164
5.2.9 PMT Coarse auto tuning with Tc99m................................................................................ 165
5.2.10 Measuring and fixing of the A/D card offset ...................................................................... 166
5.2.11 Spatial registration............................................................................................................. 166

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5.2.12 PMT fine auto tuning with Tc99m...................................................................................... 168
5.2.13 Linearity calibration............................................................................................................ 169
5.2.14 Intrinsic uniformity loading ................................................................................................. 174
5.2.15 Extrinsic uniformity loading................................................................................................ 175
5.3 Tests......................................................................................................................................... 175
5.3.1 Intrinsic uniformity test....................................................................................................... 175
5.3.2 Extrinsic uniformity test...................................................................................................... 176
5.3.3 Energy resolution test........................................................................................................ 177
5.3.4 Spatial registration test ...................................................................................................... 178
5.3.5 Linearity test ...................................................................................................................... 179
5.3.6 Max count test ................................................................................................................... 181
5.3.7 System resolution test ....................................................................................................... 182
5.3.8 Wholebody resolution test ................................................................................................. 183
5.3.9 System sensitivity test ....................................................................................................... 184
5.3.10 Stability test ....................................................................................................................... 185
5.4 Calibrations and tests of different camera types ................................................................ 186
5.4.1 COR calibration ................................................................................................................. 186
5.4.2 COR test............................................................................................................................ 186
5.5 Service mode .......................................................................................................................... 188
5.5.1 LIFT ADJUSTMENT .......................................................................................................... 188
5.5.2 HOMING ALL .................................................................................................................... 190
5.5.3 CALIBRATION................................................................................................................... 190
Chapter 6. Perform NEMA measurement.......................................................... 199
Chapter 7. Maintenance ..................................................................................... 200
7.1 Maintenance form ................................................................................................................... 200
7.2 Maintenance tasks.................................................................................................................. 201
Chapter 8. Troubleshooting............................................................................... 205
Appendix A Installation guide ........................................................................... 211
Appendix B Electronic boards and schematics............................................... 212
Appendix C Service parts .................................................................................. 213

Preface
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Introduction
Welcome to Nucline SPIRIT DH-V, an up-to-date digital gamma camera system ideally
suited for planar static, dynamic as well as SPECT and whole body imaging applications with
high patient throughput requirements. To extend the usefulness of
Nucline SPIRIT DH-V,
the system includes the optional ECG gated acquisition capability which allows performing
gated cardiac planar and gated cardiac SPECT studies.
To enhance system features toward higher resolution imaging, Mediso presents the HR
detectors option utilizing thinner NaI(Tl) detector crystal, most suitable under gamma photon
energies of 200 keV. The
Nucline SPIRIT DH-V HR camera has excellent spatial resolution
when combined with Low Energy Ultra High Resolution LEUHR collimators.
For image processing facility, as of this time, you can directly connect one or more instances
of Mediso’s
Nucline P image processing workstations and a number of image processing
workstations marketed by other manufacturers.
Beyond the above standard options the acquisition system can be configured to transfer the
acquired studies to multiple networked processing workstations in several other file formats
such as Dicom 3.0, Interfile 3.3 and direct file formats supported by a number of other
manufacturers' image processing systems.
The open computer architecture of the system allows a choice of computer accessories and
peripherals. Refer to Appendix A for a list of accessories.
This manual provides the information you need to use the
Nucline SPIRIT DH-V SPECT
and whole body system and perform routine maintenance.

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Scope of manual
The Nucline SPIRIT DH-V Acquisition Service Manual contains the following chapters:
Chapter 1 SAFETY AND REGULATORY INFORMATION
- describes safety precautions and safety features.
Chapter 2 CAMERA OVERVIEW
- contains system overview and the gantry operation modes.
Chapter 3 CONSTRUCTION GUIDE
- describes several construction procedures.
Chapter 4 SOFTWARE ADJUSTMENT
- contains the BIOS, Windows2000 and Console software installation, the Gantry
software upgrade and the result of the driver installation.
Chapter 5 CALIBRATION
- describes detector calibration, test procedures and the motion calibrations.
Chapter 6 PERFORM NEMA MEASUREMENT
- contains the required NEMA measurements.
Chapter 7 MAINTENANCE
- describes the frequent maintenance procedures.
Chapter 8 TROUBLESHOOTING
- provides an overview on resolving common system problems.
Appendix A INSTALLATION GUIDE
- contains the full DH-V camera installation guide.
Appendix A ELECTRONIC BOARDS AND SCHEMATICS
- contains the drawings and description of the electronic boards and schematics.
Appendix C SERVICE PARTS
- contains the serviceable parts of the DH-V camera.

Preface
Revision 1.02 11/216
Text Conventions Used in this Manual
The following conventions are used throughout the manual:
Special keys on keyboards, push-buttons and switches are indicated by bold-faced
characters between angle brackets e.g. <Enter>, <Home Position>, <ON/OFF>.
Software buttons, called also Soft Keys are indicated by bold-faced characters between
rectangular parentheses. e.g. [OK], [Yes], [Cancel].
Names of icons, windows, dialogs, parameters to be selected or typed, system tools,
menus and tabs, are indicated by bold-faced characters. e.g. My Computer icon,
Perfusion Review screen, 30 s time, Scroll Data drop-down menu, Dual Scroll Tool,
DICOM Tab.
System messages are indicated by bold-faced, Courier New characters. e.g. Press Y
to continue.
System parameters whose actual values must be defined by the user are indicated by
bold-faced italic characters. e.g. Type-in the Patient ID.
Words are emphasized in italic characters to stress their importance.
Hyperlinks are indicated by blue-faced characters.
WARNING
This sign denotes important warning that is to be obeyed to eliminate the risk of
personal injury or an incorrect clinical diagnosis.
CAUTION
Denotes important information to avoid serious system errors or equipment
damage.
NOTE Additional information for reader understanding or simplification of a task.
IMPORTANT It refers to other important information.
All labels relating to Safety appear in Chapter 1 Safety and Regulatory Information. Read this
section before any attempt is made to operate the system.

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Chapter 1. Safety and Regulatory
Information
1.1 General Safety
1. The safety of both patients and operators has been a major consideration factor during
the design of this equipment. With proper use and care, it will perform safely and reliably.
Misuse, however, may result in personal injury or equipment damage.
WARNING
Do not operate the system until you have read and understand the safety
precautions described in this chapter. The instructions in this manual are provided
for your benefit. Be sure to read them before operating this equipment, and retain
the equipment's manuals for future reference.
2. The system has been designed to meet all the safety requirements applicable to medical
equipment. However, anyone attempting to operate the system must be fully aware of
potential safety hazards.
3. There are no user serviceable parts in this system. The product should be installed,
maintained and serviced by qualified service personnel according to procedures laid
down in the product service manuals.
4. The system in whole or in part should not be modified in any way without prior written
approval by Mediso Medical Imaging Systems. Do not defeat any safety feature of the
system.
5. The manufacturer or vendor of the equipment makes no representation, however, that the
act of reading this manual renders the reader qualified to operate, test or calibrate the
system.
6. The images and calculations provided by this system are intended as tools for the
competent user. They are explicitly not to be regarded as a sole incontrovertible basis for
clinical diagnosis. Users are encouraged to study the literature and reach their own
professional conclusions regarding the clinical utility of the system.
7. The user should be aware of the product specifications, system accuracy, and stability
limitations. These limitations must be considered before making any decision based on
quantitative values. In case of doubt, please consult your sales representative.
8. Unauthorized personnel should not be allowed access to the system. The owner should
make certain that only properly trained, fully qualified personnel are authorized to operate
the equipment. An authorized operators list should be maintained.
9. It is important that this manual should be kept at hand, studied carefully and reviewed
periodically by the authorized service personnel.
10. When installing a collimator, ensure the collimator is properly mounted by turning the
collimator lock into the locked position.
11. The flood source, filled with radioactive isotopes or compounds, gives off hazardous
radiation. Safe and proper handling techniques as well as local radiation protection
procedures should always be observed when using the flood source. Provide appropriate
shielding for the filled source when not in use.
12. Do not operate the system any further if a problem occurs with a mechanical control
device (e.g. joystick, ENABLE button, Emergency Stop knob).

Safety and Regulatory Information
Revision 1.02 13/216
13. Power failures that interrupt power to the detector electronics can adversely affect the
detectors condition. If it occurs for a time period exceeding 30 minutes, perform the
uniformity test to see whether the detector maintained the uniformity following the power
failure. For details, see 5.3.1 Intrinsic uniformity test.
14. Electrical Fire - Conductive fluids that seep into the active circuit components of the
system may cause short circuits that can result in electrical fires. Therefore, do not place
any liquid or food on any part of the system. To avoid electrical shocks or burns caused
by the use of wrong type of fire extinguisher, make sure that only fire extinguisher
approved for use on electrical fires are used.
15. Explosion Hazard - Do not operate the equipment in the presence of explosive liquids,
vapors or gases. Do not plug in or turn on the system if hazardous substances are
detected in the environment. If hazardous substances are detected after the system has
been turned on, do not attempt to turn off or unplug the system until the area has been
evacuated and ventilated.
16. Overheating - Do not block the ventilation ports of the electronic equipment. Always
maintain at least 6 inches (15 cm) clearance around the ventilation ports to prevent
overheating and damage to the electronic hardware.
1.1.1 Electrical Safety
Nucline SPIRIT DH-V is Class I Type B equipment designed to comply with IEC
60601-1 (EN 60601-1) electrical safety and IEC 60601-1-2 (EN 60601-1-2)
electromagnetic compatibility regulations.
1.1.1.1 Safety Requirements
WARNING
Manufacturer approves the electrical safety of this equipment only if the following
requirements are being observed:
1. Connect the equipment's AC power plug only to wall outlets with protective
earth connection.
The earth grounding line of the wall outlet must be connected to a properly
earth grounded receptacle. The neutral side of the power line is not to be
considered as grounding.
2. If the camera room is equipped with a grounded network: Use separate
conductors to connect the grounding connector on the back of the Nucline
SPIRIT DH-V Electronics Rack and the grounding connector on the back of
the gantry to the common node of the grounded network in the room. To
locate the grounding connector on the back of the electronics rack, refer to
Figure 10 Back side of console computer.
NOTE Two suitable insulated copper cables of minimum 6 mm diameter are supplied
with the system as standard accessory.
3. For external connections, in order to maintain electrical safety, only the
peripherals listed below, or others subsequently approved by Mediso
Medical Imaging Systems, may be powered directly from the two output AC
sockets (marked by the "TO ACCESSORIES" label) on the
Nucline SPIRIT
DH-V Electronics Rack.
To locate the two isolated output AC sockets on the back of the electronics
rack, refer to Figure 10 Back side of console computer.

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Rating USA Wall Plug European Wall Plug
Current 12 A 6 A
Voltage 115 VAC 230 VAC
Cable diameter 0.5 inch (12 mm) 12 mm
Approvals
UL: “Hospital Grade”
or
UL: “Hospital Only”
Meets local current and voltage
ratings
The total current from the two output AC sockets should be less than 2A.
Other peripherals connected to the system shall be independently powered
and grounded.
4. Refer all servicing to electrical engineers qualified by the manufacturer. Do
not change internal components, such as computer interface cards in the
acquisition system. Do not install new hardware, such as computer interface
cards into the acquisition system.
1.1.1.2 Prevention of Electrical Hazards
Do not place objects containing liquid on the electronics cabinets. Do not
spray aerosols or liquids on the equipment. Liquids or accidental spills
entering the detector, gantry or other electronics cabinets can produce an
electrical hazard.
Do not remove enclosure panels to clean the internal parts of the system.
Place electrical cords and cables in locations where they will not be stepped
on.
Keep air vents for the detector, electronics cabinet, and gantry free of
obstructions. Insufficient air flow can produce overheating that damages
electrical components.
WARNING
Failure to provide an adequate earth ground circuit can result in a shock
hazard which can cause serious personal injury.
Only properly trained personnel should be permitted access to any internal part of
the equipment. Live electrical terminals and components inside electronics
cabinets can present a shock hazard and can cause serious or fatal injury.
Maintenance and service routines beyond those mentioned in this manual must
be referred to service personnel authorized by the manufacturer. In the absence
of appropriate instructions in this manual do not attempt to make service work
on the equipment.
When this equipment is interconnected with other electrical appliances in its
normal operation, it is important, that these other appliances also be provided
with adequate grounding protection. Faults occurring in any interconnected
appliance can degrade the safety of this product.

Safety and Regulatory Information
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1.1.1.3 Handling Danger Situations
Even with proper use and care, accidents can happen. In case electrical
hazards or unforeseen events occur that can present danger, such as
liquid is spilled or object is dropped into the system,
cables get cut, broken or cable insulation damaged,
smell of burning or smoke comes from the system,
do the following:
1. Switch off the Main Power Switch located at the lower left corner on the back
door of the Gantry, or remove the power plug of the Electronics Rack from
the wall outlet or uninterruptible power supply (UPS).
2. Notify your service representative or the Mediso Medical Imaging Systems
office of the accident.
1.1.2 Mechanical Safety
All moveable assemblies and supporting structures should be operated with care and
routinely inspected. Any collision which could damage the equipment, worn
components, unusual noises or difficulties in operation should be reported to the
manufacturer's office immediately.
1.1.3 Radiation
This equipment does not generate any hazardous radiation. When using radioactive
isotopes or compounds, safe and proper handling techniques should always be
observed. If radioactive contamination occurs, use the decontamination agent and
method as described in your site protocol to clean the outside of the equipment.

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1.2 IEC Symbols Used
The system may have labels with one or more of the following symbols. These symbols
indicate the IEC standards to which the system conforms.
Symbol IEC Standard
Alternating Current
Protective Earthing Point
ON / Power ON
OFF / Power OFF
Input Power
Output Power
Functional Earth Ground
Warning, Caution - consult accompanying
documents
Electrical Shock Hazard
Wheelie Bin

Safety and Regulatory Information
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1.3 Safety Devices
The imaging system has 2 basic types of safety devices:
Emergency Stop Button - used by the operator to halt the motorized system motions in
cases where there is any possibility of danger to the patient.
CAUTION
Do not reset the button until the problem that necessitated its use is resolved.
Preventing Collisions – serve to protect against an inadvertent collision or contact
between the patient and the detector during imaging procedures.
IMPORTANT The operator must be familiar with the location and operation of all safety
devices.
WARNING
If there is any possibility of danger to the patient, press the emergency stop button
to halt the motion.
IMPORTANT The Safety Devices must be maintained and tested regularly.
WARNING
Do not place high activity sources close to an uncollimated detector. Sources
greater than 0.5 mCi (18.5 MBq) placed within 0.5 m of an uncollimated detector
may cause long term image quality defects.

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1.3.1 Emergency Stop Button
1.3.1.1 Using the Emergency Stop
IMPORTANT
Use the emergency stop switches to stop all gantry, detector and imaging
table motions in case of emergency.
The Emergency Stop button disconnects power to the motors controlling
movement, and all motions stop quickly. The gantry display will indicate the
EMERGENCY status in the MODE: field.
To activate the Emergency Stop, depress the Emergency Stop button fully
until engaged. Each switch stays depressed until reset, as described below.
Use the emergency stop switches to stop all gantry, detector and imaging table
motions in case of emergency. Emergency stop switches disconnect power to
the motors controlling movement, and all motions stop quickly. The gantry
display will indicate the EMERGENCY status in the MODE.
To activate Emergency Stop, depress an emergency stop switch fully until
engaged. Each switch stays depressed until reset, as described below.
All emergency stop switches are red-colored and are located:
on the handcontroller (E-STOP button) (Figure 5 Handcontroller)
on the gantry (E-STOP knob) (Figure 1 Gantry with 2 detectors assembled)
on the acquisition console (E-STOP knob) (Figure 2 Acquisition console)
on the back panel of the imaging table (E-STOP knob) (Figure 3 Imaging
table with head holder assembled)
1.3.1.2 Resetting the Emergency Stop switches
Once engaged, the emergency stop switches must be reset before normal
camera operation can be resumed.
If Emergency Stop was activated using an E-STOP knob, turn the knob in the
clockwise direction until limit and release. The knob will relocate to unlocked
position.
If Emergency Stop was activated using the E-STOP button on the
handcontroller, depress and release the E-STOP button again to reset the
button.
CAUTION
Do not reset the button until the problem that necessitated its use is resolved.
1.3.2 Preventing Collisions
Nucline SPIRIT DH-V systems are equipped with collision detect sensors, which are
located on the front plane of the collimator. If collision is detected by the sensor plate,

Safety and Regulatory Information
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all gantry motions stop to prevent the hazards of personal injury or equipment
damage. However, collisions can occur in spite of this safety feature.
Use increased care to prevent collisions in the following cases:
Positioning in MANUAL OVERRIDE mode. Collision detect is disabled when the
system is in MANUAL OVERRIDE mode. To a greater extent, it is the operator's
responsibility to ensure that the gantry does not contact the patient or other
equipment in MANUAL OVERRIDE mode.
Preprogrammed motions. The gantry and detector will automatically move to a
predefined position during preprogrammed motions. Ensure that no obstruction is
present on the anticipated motion path of the selected preprogrammed motion Do
not start a preprogrammed motion if the patient is on the imaging table.
Acquisitions utilizing computer controlled motions. The gantry and detector will
automatically move along the defined motion path during whole body and SPECT
acquisitions. Before SPECT and whole body acquisitions, it is important to
manually run the detector along the motion path to ensure that sufficient clearance
from the patient and imaging table is kept at all positions. Vigilantly watch the
patient during computer controlled motions so that you may intervene if necessary.
Special patient positions. Patient is more exposed to collision situations when they
cannot lie flat, have an arm extended or are connected to other external medical
equipment.
General principles:
CAUTION
Ensure a qualified operator is always present when the patient is on the imaging
table. Watch the patient vigilantly while the gantry is in motion.
Use manual positioning instead of preprogrammed motions if the patient is on the
imaging table.
Position the patient, imaging table and gantry carefully before starting acquisitions
which utilize computer controlled motions. Verify by manual control that the defined
settings ensure unobstructed motion of the detector and gantry.
Automatic (computer controlled, preprogrammed) motions can be halted immediately
by pressing any button on the handcontroller. Press any button on the handcontroller
to stop an automatic motion, if collision danger is impending due to the patient's
accidental movement or an incorrect gantry position. Make sure the obstruction is
cleared before restarting an acquisition.
In case of emergency, push one of the red colored Emergency Stop (E-STOP)
switches at the following locations:
Red E-STOP button on the handcontroller (Figure 5 Handcontroller)
Red E-STOP button on the gantry (Figure 1 Gantry with 2 detectors assembled)
Red E-STOP knob on the acquisition console (Figure 2 Acquisition console)
Red E-STOP knob on the back panel of the imaging table (Figure 3 Imaging table
with head holder assembled)
By activating any of the E-STOP switches, you interrupt the power line to all gantry
motors and imaging table motors, and all motions stop quickly.

Nucline SPIRIT DH-V Service Manual
20/216 05/05/2006
1.4 Patient Safety and Emergency Case
1.4.1 Patient Handling
1. During studies, monitor the patient during the entire scan to ensure that the patient
maintains appropriate positioning relative to the Gantry.
WARNING
Unintended motion could cause injury. Never leave the patient unattended and
always monitor the position of the patient and equipment during scan procedures.
2. Potential Pacemaker Hazard - though the possibility of interference with
pacemakers is small, the operator should be alert to such a potential hazard from
any equipment using high frequency electrical signals
3. Never exceed the rated load of patient handling devices.
4. The user should be aware of system limitations regarding particularly large or
overweight patients. Please be aware of any particular system limits or safety
precautions and labels regarding large or overweight patients. In case of doubt,
please contact your vendor.
WARNING
Large or overweight patients may encounter difficulties with the physical
clearance of the system.
WARNING
Never exceed the rated load of patient handling devices - the table rating is 200
kg (440 lb) - as this may cause damage to equipment and possible injury.
1.4.2 Patient Positioning
The operator should:
Always assist the patients with getting on or off the imaging table.
Ensure that the patients are positioned securely on the stretcher, and not in danger
of falling.
Ensure that patients do not raise their heads or move their bodies during scans.
Ensure that obstacles do not interfere with the movement of the imaging table.
Ensure that patients are positioned with their heads in the direction of the controls.
Advise the patients not to move during the positioning and study procedures.
Make sure that the patients’ arms are positioned appropriately behind their heads
so as not to interfere between the table and gantry while the table is being moved
into acquisition position.
WARNING
Make sure that any patient connected lines, tubes etc. are long enough to allow
for the full travel of the system, without pulling or restricting.