Olympus MAJ-2307 User manual

INSTRUCTIONS
INFRARED FILTER UNIT
MAJ-2307
Labels and Symbols 1
Important Information — Please Read Before
Use 3
Summary of Equipment Functions 8
Chapter 1 Checking the Package Contents 9
Chapter 2 Nomenclature and Functions 11
Chapter 3 Installation and Connection 15
Chapter 4 Function Setup 29
Chapter 5 Inspection 55
Chapter 6 Operation 67
Chapter 7 Care, Storage, and Disposal 77
Chapter 8 Troubleshooting 79
Appendix 85

Contents
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MAJ-2307 INSTRUCTION MANUAL
Contents
Labels and Symbols .......................................................................................................... 1
Important Information — Please Read Before Use ......................................................... 3
Intended use .......................................................................................................................... 3
Instruction manual ................................................................................................................. 3
User qualifications ................................................................................................................. 5
Instrument compatibility ......................................................................................................... 5
Spare equipment ................................................................................................................... 5
Prohibition of improper repair and modification ..................................................................... 5
Signal words .......................................................................................................................... 6
Precautions ............................................................................................................................ 6
Summary of Equipment Functions .................................................................................. 8
Chapter 1 Checking the Package Contents ......................................... 9
1.1 Checking the package contents .............................................................................. 9
1.2 Infrared Imaging Unit (MAJ-2304) (sold separately) ............................................ 10
1.3 Recorder Remote Cable 3P (MAJ-2310) (optional) .............................................. 10
Chapter 2 Nomenclature and Functions ............................................ 11
2.1 Symbols and descriptions ..................................................................................... 11
2.2 Infrared Filter Unit .................................................................................................. 12
2.3 Infrared Imaging Unit ............................................................................................. 13
Chapter 3 Installation and Connection ............................................... 15
3.1 Precautions for installation and connection ........................................................ 15
3.2 Connection of Infrared Filter Unit ......................................................................... 17
3.3 Connection of Infrared Imaging Unit (MAJ-2304) ................................................ 21
3.4 Connection of video recorder ............................................................................... 25
Compatible video recorders ................................................................................................. 25
Compatible observation monitors ........................................................................................ 25
Connection of video recorder .............................................................................................. 26
Chapter 4 Function Setup .................................................................... 29
4.1 List of setting functions for optimum use of equipment .................................... 29
4.2 User presets ............................................................................................................ 30
Setting the custom switch .................................................................................................... 30
Adjusting the basic image .................................................................................................... 31
Setting the IR imaging mode ............................................................................................... 36
Setting the data display on the observation monitor ............................................................ 49

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Contents
MAJ-2307 INSTRUCTION MANUAL
4.3 Setting of video recorder ....................................................................................... 52
4.4 Resetting the current user presets ....................................................................... 53
Chapter 5 Inspection ............................................................................ 55
5.1 Precautions of workflow ........................................................................................ 55
5.2 Inspection of connection of the Infrared Filter Unit ............................................ 57
5.3 Inspection of IR imaging function ......................................................................... 58
5.4 Inspection of IR playback function ....................................................................... 60
5.5 After inspection ...................................................................................................... 66
Chapter 6 Operation ............................................................................. 67
6.1 Precautions for operation ...................................................................................... 67
6.2 Operation of IR imaging mode .............................................................................. 68
6.3 Operation of IR playback function ........................................................................ 71
Chapter 7 Care, Storage, and Disposal .............................................. 77
7.1 Care .......................................................................................................................... 77
7.2 Storage .................................................................................................................... 78
7.3 Disposal ................................................................................................................... 78
Chapter 8 Troubleshooting .................................................................. 79
8.1 Troubleshooting ..................................................................................................... 79
8.2 Troubleshooting guide ........................................................................................... 80
8.3 Returning this instrument for repair ..................................................................... 84
Appendix ................................................................................................. 85
Combination equipment .................................................................................................. 85
System chart ........................................................................................................................ 85
Specifications ................................................................................................................... 87
Environment ........................................................................................................................ 87
Specifications ....................................................................................................................... 88
EMC information .............................................................................................................. 90

Labels and Symbols
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MAJ-2307 INSTRUCTION MANUAL
Safety-related labels and symbols are attached on the locations shown below. If labels or symbols are
missing or illegible, contact Olympus.
Infrared Filter Unit (MAJ-2307)
Back cover of this instruction manual
Labels and Symbols
Symbol Description Symbol Description
Manufacturer Authorized representative in the
European Community
Caution lines (Yellow)
This line is visible when the
connection is incomplete. It is a
caution not to use this instrument
in this condition.
Serial number plate

2
Labels and Symbols
MAJ-2307 INSTRUCTION MANUAL
Infrared Imaging Unit (MAJ-2304) (sold separately)
Manufacturer name
Serial number plate
Crossed-out
wheeled bin’
symbol

Important Information — Please Read Before Use
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MAJ-2307 INSTRUCTION MANUAL
Intended use
This instrument has been designed to be used with Olympus Surgical Microscope for IR (Infrared)
imaging.
Instruction manual
This instruction manual contains essential information on using this instrument safely and effectively.
Before use, thoroughly review this manual and the manuals for ancillary equipment that will be used
during the procedure and use the equipment as instructed.
Keep this and all related instruction manuals in a safe, accessible location. If you have any questions
about any information in this manual, contact Olympus.
Terms used in this manual
Important Information — Please Read Before Use
Surgical microscope (OME-V200)
The surgical microscope designated by Olympus to be used in combination with this
instrument.
LED light source (OME-L200)
LED-based light source designated by Olympus to be used in combination with this
instrument.
WLI (White Light Imaging) observation
This is observation using white light.
IR (Infrared) imaging
This is observation using red light.
AGC (Automatic Gain Control)
Function that electrically increases the image brightness when the image brightness
becomes insufficient due to a change in the observation conditions such as the working
distance and magnification.

4
Important Information — Please Read Before Use
MAJ-2307 INSTRUCTION MANUAL
Custom switch
Custom switch is a generic term for the buttons, keys, and switches to which various
functions can be assigned: the custom buttons 1 and 2 on the touch panel and scope
switches 1, 2, and 3 on the microscope section and foot switches 1 to 6 on the foot switch
unit.-
Iris
Function that electrically measures the image brightness.
Automatic brightness control
Function that automatically adjusts illumination light to keep the image brightness
constant even when the observation conditions such as the working distance and
magnification change.
Color adjustment
Color adjustment adjusts the color balance and the chroma on the monitor.
Edge enhancement
Edge enhancement is an image processing technique that electrically emphasizes the
edges of an image to increase sharpness.
Structure enhancement
Structure enhancement is an image processing technique that electrically emphasizes the
detailed patterns and edges of an image to increase sharpness.
IR playback
Function that works by using this product in combination with surgical microscope, video
recorder, and observation monitor, and using the auto playback function of the video
recorder.
Function to display the IR observation image (IR playback image) repeatedly on the
sub-screen at the time of WLI observation and to display the WLI observation image (still
image) on the sub-screen at the time of IR observation.
Infrared Imaging Unit (MAJ-2304)
Unit for IR observation in combination with Infrared and Blue Light Filter Unit.

Important Information — Please Read Before Use
5
MAJ-2307 INSTRUCTION MANUAL
User qualifications
The operator of this instrument must be a physician or medical personnel under the supervision of a
physician and must have received sufficient training in clinical procedures of microsurgery using
surgical microscopes. This manual, therefore, does not explain or discuss the details of microsurgery
using surgical microscopes.
For details of microsurgery using surgical microscopes, the physician and operator are requested to
judge from their viewpoints as specialists.
Instrument compatibility
This instrument should be used in combination with the ancillary equipment shown in “System chart”
on page 85. Using incompatible equipment can result in patient or operator injury and/or equipment
damage as well as malfunction.
This instrument complies with EMC standard for medical electrical equipment edition 4
(IEC 60601-1-2: 2014).
Spare equipment
To avoid interruption of procedure due to an unexpected event such as equipment failure in the middle
of operation, be sure to reserve the spare equipment.
Prohibition of improper repair and modification
Never allow a person other than Olympus-qualified personnel to disassemble or modify the instrument,
as this may result in injury of the patient or operator as well as damage to the equipment. Olympus will
not assume any liability for the human accident or equipment damage incurred due to repair by a
person other than Olympus-qualified personnel.

6
Important Information — Please Read Before Use
MAJ-2307 INSTRUCTION MANUAL
Signal words
The following signal words are used throughout this manual:
Precautions
Follow the dangers, warnings, and cautions given below when handling this instrument. This
information is to be supplemented by the dangers, warnings, and cautions given in each chapter.
WARNING
• Strictly observe the following precautions. Failure to do so may place the patient
and medical personnel in danger of an electric shock.
Do not souse or spill a liquid such as water over this instrument. If a liquid is spilt
on it, immediately wipe it. Should a liquid penetrate this instrument, immediately
stop using it and contact Olympus.
Do not prepare, inspect, or use this instrument unit with wet hands.
• Never install and/or operate this instrument under the following conditions. An
explosion or a fire could occur.
The concentration of oxygen is high.
Oxidizing agents (such as nitrous oxide (N2O)) are present in the atmosphere.
Flammable anesthetics are present in the atmosphere.
Flammable liquids are near.
• Do not use the equipment for ophthalmic surgery or during procedures in which the
illumination may make direct contact with the patient’s eye. The strong illumination
can injure the retina.
• Do not use for purposes other than those described in “Intended use” on page 3,
as this may result in injury of the patient or operator as well as damage to the
equipment.
• This instrument should be used under the conditions specified in “Environment”
on page 87. Otherwise, imperilment of safety or failure of equipment may result as
well as malfunction.
Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
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 or potential
equipment damage.
Indicates additional helpful information.
WARNING
CAUTION
NOTE

Important Information — Please Read Before Use
7
MAJ-2307 INSTRUCTION MANUAL
WARNING
• The information obtained through IR imaging is merely reference information. Be
sure to perform a comprehensive observation of all required regions by also using
the WLI observation.
• This product may interfere with other medical electric equipment used in
combination with it. Before use, refer to “Appendix” to confirm the compatibility of
this instrument with all equipment to be used.
CAUTION
• Do not use this instrument in any place where it may be subject to strong
electromagnetic radiation (for example, in the vicinity of a microwave therapeutic
equipment, MRI, wireless set, short-wave therapeutic equipment, cellular/portable
phone, etc.). This may impair the performance of this instrument.
• Do not use this instrument in any place with strong magnetic force, or bring
magnetized equipment or magnets closer. This may impair the performance of this
instrument.
• Do not push any part of this instrument with a sharp of hard object. Otherwise,
equipment damage or failure may result.
• Connect various connectors in a dry state without contamination of electrical
contacts. Also, do not touch the electrical contacts inside the connector directly. If
the electrical contacts are dirty or used under wet conditions, the equipment may
malfunction.
• Electromagnetic interference may occur on this instrument near equipment marked
with the following symbol or other portable and mobile RF (Radio Frequency)
communications equipment such as cellular phones. If electromagnetic
interference occurs, mitigation measures may be necessary, such as reorienting or
relocating this instrument, or shielding the location.

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Summary of Equipment Functions
MAJ-2307 INSTRUCTION MANUAL
For details of the functions, also refer to the instruction manuals of ancillary equipment as well as to the
present manual.
Infrared (IR) Imaging
IR imaging using IR illumination is possible.
Refer to Section 6.2, “Operation of IR imaging mode”.
Adjusting the image
The following functions are provided to facilitate IR imaging.
• Iris sensitivity adjustment
Refer to “Setting the iris sensitivity” on page 35.
• Brightness adjustment
Refer to “Adjusting the IR brightness” on page 39.
• Maximum gain adjustment
Refer to “Setting the IR AGC MAX gain” on page 40.
• Maximum exposure time adjustment
Refer to “Setting the IR MAX exposure time” on page 43.
• Enhancement of edge lines and patterns of the images
Refer to “Selecting the IR enhancement” on page 45.
IR playback
The IR image recorded on the video recorder is repeatedly played in the observation monitor.
• Setting IR playback
Refer to Section 4.3, “Setting of video recorder”.
• Using IR playback
Refer to Section 6.3, “Operation of IR playback function”.
Summary of Equipment Functions

1.1 Checking the package contents
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MAJ-2307 INSTRUCTION MANUAL
Ch.1
Chapter 1 Checking the Package
Contents
Confirm that this instrument and its accessories are present by matching all items in the package with
the components shown below. Inspect each item for damage. If the instrument is damaged, a
component is missing or you have any questions, do not use the instrument; immediately contact
Olympus.
1.1 Checking the package contents
Infrared Filter Unit
INFRARED FILTER UNIT (MAJ-2307)
Accessories
Allen screwdriver
(1.5 mm width across flats)
Instruction manual (This book)

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1.2 Infrared Imaging Unit (MAJ-2304) (sold separately)
MAJ-2307 INSTRUCTION MANUAL
Ch.1
1.2 Infrared Imaging Unit (MAJ-2304)
(sold separately)
INFRARED IMAGING UNIT
(MAJ-2304)
IR emblem Allen screwdriver
(3 mm width across flats)
Access information sheet
1.3 Recorder Remote Cable 3P (MAJ-2310)
(optional)
Recorder Remote Cable 3P Access information sheet

2.1 Symbols and descriptions
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MAJ-2307 INSTRUCTION MANUAL
Ch.2
Chapter 2 Nomenclature and
Functions
This chapter is intended to explain the names and functions of the parts.
Infrared Imaging Unit
Touch panel
2.1 Symbols and descriptions
Symbol Description
Serial number
Symbol Description
IR playback

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2.2 Infrared Filter Unit
MAJ-2307 INSTRUCTION MANUAL
Ch.2
2.2 Infrared Filter Unit
No. Name Description
1 Filter selector knob Knob for switching observation mode.
2 Filter selection indices Align the index on the filter selector knob with the desired imaging mode name.
The following imaging modes can be selected.
IR : Infrared imaging mode
WLI : White light imaging mode
3 Lock screws Tighten the screws when connecting the Infrared Filter Unit to the surgical
microscope.
1
3
2

2.3 Infrared Imaging Unit
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MAJ-2307 INSTRUCTION MANUAL
Ch.2
Infrared Imaging Unit
IR emblem
2.3 Infrared Imaging Unit
No. Name Description
1 Connector Use this connector for connection to the unit terminal of the LED light source.
No. Name Description
1 Protective sheet Protects the adhesive surface. Peel this sheet off when attaching the emblem on the
emblem attaching section on the LED light source used in combination with this
instrument.
1
1

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2.3 Infrared Imaging Unit
MAJ-2307 INSTRUCTION MANUAL
Ch.2

3.1 Precautions for installation and connection
15
MAJ-2307 INSTRUCTION MANUAL
Ch.3
Chapter 3 Installation and Connection
Prepare this instrument and the ancillary equipment according to the purpose of use as shown in
“System chart” on page 85.
Also, read the instruction manual for each piece of ancillary equipment and connect this instrument
and the ancillary equipment in the order given in this chapter.
WARNING
Before use, be sure to read this chapter and prepare the ancillary equipment
optimally. Otherwise, patient or operator injury may result as well as malfunctions of
the equipment.
CAUTION
• Be sure to turn the connected surgical microscope and the ancillary equipment
OFF before proceeding to the connection work. Otherwise, equipment failure or
malfunction may result.
• Hold this instrument and other ancillary equipment combined with it securely so as
not to drop them. Otherwise, equipment damage may result.
• Do not install this instrument in the proximity of a source of strong electromagnetic
waves (microwave therapy equipment, shortwave therapy equipment, MRI, radio,
cellphone, etc.). Otherwise, this instrument may fail.
• Install and connect this instrument on a level surface from which the surgical
microscope will not move spontaneously and lock the brake by pushing the brake
pedal. If the base moves spontaneously during work, personnel injury may result.
3.1 Precautions for installation and connection

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3.1 Precautions for installation and connection
MAJ-2307 INSTRUCTION MANUAL
Ch.3
CAUTION
• See Table 3.1 for details on this instrument and other ancillary equipment to be
used in combination with it. Combining other equipment may result in equipment
malfunction.
Table 3.1
Equipment with installation and
connection descriptions in this manual Compatible equipment
MAJ-2307 INFRARED FILTER UNIT ORBEYE SURGICAL MICROSCOPE
OME-V200
MAJ-2304 INFRARED IMAGING UNIT LED LIGHT SOURCE OME-L200
MAJ-2310 RECORDER REMOTE CABLE
3P
ORBEYE SURGICAL MICROSCOPE
OME-V200
4K3D Video Recorder HVO-4000ST