gif-2t240_gastrointestinal_videoscope_operation_man.pdf
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INSTRUCTIONS
EVIS GASTROINTESTINAL VIDEOSCOPE
OLYMPUS GIF TYPE 2T240
Refer to the endoscope’s companion manual, the “OLYMPUS EVIS TYPE 40 Two
Instrument Channels Series ENDOSCOPE REPROCESSING MANUAL” for
reprocessing information.
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Contents
Contents
Symbols.........................................................................................
1
Important Information — Please Read Before Use....................
2
Intended use ............................................................................................
2
Applicability of endoscopy and endoscopic treatment .............................
2
Instruction manual.....................................................................................
3
User qualifications ....................................................................................
3
Instrument compatibility ...........................................................................
3
Reprocessing and storage ........................................................................
4
Spare equipment ......................................................................................
4
Repair and modification ...........................................................................
4
Signal words .............................................................................................
4
Warnings and cautions .............................................................................
5
Chapter 1
Checking the Package Contents............................
8
Chapter 2
Instrument Nomenclature and Specifications ......
10
2.1
Nomenclature..................................................................................
10
2.2
Endoscope functions.......................................................................
12
2.3
Specifications..................................................................................
14
Preparation and Inspection ....................................
17
3.1
Preparation of the equipment..........................................................
17
3.2
Preparation and inspection of the endoscope.................................
18
3.3
Preparation and inspection of accessories .....................................
22
3.4
Attaching accessories to the endoscope ........................................
25
3.5
Preparation, inspection and connection of the ancillary equipment
27
3.6
Inspection of the endoscopic system ..............................................
29
Operation .................................................................
32
4.1
Insertion ..........................................................................................
34
4.2
Using endo-therapy accessories.....................................................
38
4.3
Withdrawal of the endoscope..........................................................
43
4.4
Transportation of the endoscope ....................................................
44
Troubleshooting ......................................................
45
5.1
Troubleshooting guide ....................................................................
45
5.2
Returning the endoscope for repair ................................................
49
Chapter 3
Chapter 4
Chapter 5
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Contents
ii
Appendix........................................................................................
50
System chart ............................................................................................
50
EMC information........................................................................................
56
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Symbols
Symbols
The meaning(s) of the symbol(s) shown on the package with the components,
the back cover of this instruction manual and/or this instrument are as follows:
Refer to instructions.
Caution
Type BF applied part
Endoscope
Manufacturer
Authorized representative in the European Community
Lot number
Serial number
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Important Information — Please Read Before Use
Important Information — Please Read
Before Use
Intended use
This instrument has been designed to be used with an OLYMPUS video system
center, light source, documentation equipment, video monitor, endo-therapy
accessories such as a forceps, electrosurgical unit, and other ancillary
equipment for endoscopy and endoscopic surgery within the upper digestive
tract (including esophagus, stomach and duodenum).
Do not use this instrument for any purpose other than its intended use.
Applicability of endoscopy and endoscopic treatment
If there is an official standard on the applicability of endoscopy and endoscopic
treatment that is defined by the hospital’s administration or other official
institutions such as academic societies on endoscopy, follow that standard.
Before starting endoscopy and endoscopic treatment, thoroughly evaluate its
properties, purposes, effects, and possible risk (their natures, extent and
probability). Perform endoscopy and endoscopic treatment only when its
potential benefits are greater than its risks.
Fully explain to the patient the potential benefits and risks of the endoscopy and
endoscopic treatment as well as any examination/treatment methods that can be
performed in its place, and perform the endoscopy and endoscopic treatment
only after obtaining the consent of the patient.
Even after starting the endoscopy and endoscopic treatment, continue to
evaluate the potential benefits and risks, and immediately stop the
endoscopy/treatment and take proper measures if the risks to the patient
become greater than the potential benefits.
2
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Important Information — Please Read Before Use
Instruction manual
This instruction manual contains essential information on using this instrument
safely and effectively. Before use, thoroughly review this manual and the
manuals of all equipment which will be used during the procedure and use the
equipment as instructed. Note that the complete instruction manual set for this
endoscope consists of this manual and the “OLYMPUS EVIS TYPE 40 Two
Instrument Channels Series ENDOSCOPE REPROCESSING MANUAL” which
also accompanied the endoscope at shipment.
Keep this and all related instruction manuals in a safe, accessible location.
If you have any questions or comments about any information in this manual,
please contact Olympus.
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 endoscopic technique. This manual, therefore, does not explain or
discuss clinical endoscopic procedures.
Instrument compatibility
Refer to the “System chart” in the Appendix to confirm that this instrument is
compatible with the ancillary equipment being used. Using incompatible
equipment can result in patient injury or equipment damage.
This instrument complies with EMC standard for medical electrical equipment;
edition 2 (IEC 60601-1-2: 2001). However, when connected with an instrument
that complies with EMC standard for medical electrical equipment; edition 1
(IEC 60601-1-2: 1993), the whole system complies with edition 1.
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Important Information — Please Read Before Use
Reprocessing and storage
This instrument was not disinfected or sterilized before shipment. Before using
this instrument for the first time, reprocess it according to the instructions given
in the endoscope’s companion manual, the “OLYMPUS EVIS TYPE 40 Two
Instrument Channels Series ENDOSCOPE REPROCESSING MANUAL”.
After using this instrument, reprocess and store it according to the instructions
given in the endoscope’s reprocessing manual. Improper and/or incomplete
reprocessing or storage can present an infection control risk, cause equipment
damage or reduce performance.
Spare equipment
Be sure to prepare another endoscope to avoid that the examination will be
interrupted due to equipment failure or malfunction.
Repair and modification
This instrument does not contain any user-serviceable parts. Do not
disassemble, modify or attempt to repair it; patient or user injury and/or
equipment damage can result. Some problems that appear to be malfunctions
may be correctable by referring to Chapter 5, “Troubleshooting”. If the problem
cannot be resolved using the information in Chapter 5, contact Olympus.
Signal words
The following signal words are used throughout this manual:
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.
4
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Important Information — Please Read Before Use
Warnings and cautions
Follow the warnings and cautions given below when handling this instrument.
This information is to be supplemented by the warnings and cautions given in
each chapter.
•
Never insert/withdraw the endoscope’s insertion tube while
the bending section is locked in position. Patient injury can
result.
•
Do not strike, bend, hit, pull, twist, or drop the endoscope’s
distal end, insertion tube, bending section, control section,
universal cord, or endoscope connector of the endoscope
with excessive force. The endoscope may be damaged and
could cause patient injury, burns, bleeding and/or
perforations. It could also cause parts of the endoscope to
fall off inside the patient.
•
Never perform angulation control forcibly or abruptly. Never
forcefully pull, twist or rotate the angulated bending section.
Patient injury, bleeding and/or perforation can result. It may
also become impossible to straighten the bending section
during an examination.
•
Never perform angulation control, feed air, perform suction or
insert/withdrawal the endoscope’s insertion tube without
viewing the endoscopic image. Patient injury can result.
•
Never operate the bending section, feed air or perform
suction, insert or withdraw the endoscope’s insertion tube
while the image is frozen. Patient injury can result.
•
Do not touch the light guide of the light guide connector
section immediately after removing it from the light source
because it is extremely hot. Operator or patient injury can
result.
•
Never insert/withdraw the insertion tube with excessive force
or while an optimum field of view cannot be obtained.
Otherwise, patient injury could result.
•
Do not pull the universal cord. The light guide connector
section will be pulled out from the output socket of the light
source and the endoscopic image will not be visible.
•
Do not coil the insertion tube or universal cord into a diameter
of less than 12 cm. Equipment damage can result.
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Important Information — Please Read Before Use
6
•
Do not touch the electrical contacts inside the electrical
connector. CCD damage may result.
•
Do not apply shock to the distal end of the insertion tube,
particularly the objective lens surface of the distal end. Vision
abnormalities may result.
•
Do not twist or bend the bending section with your hands.
Equipment damage may result.
•
Do not squeeze the bending section forcefully. The covering
of the bending section may stretch or break and cause water
leaks.
•
Turn the EVIS video system center OFF before connecting or
disconnecting the videoscope cable from the electrical
connector on the endoscope. Turn the video system center
ON or OFF only when the videoscope cable is connected to
both the video system center and electrical connector on the
endoscope. Failure to do so can result in equipment damage,
including destruction of the CCD.
•
The endoscope’s remote switches cannot be removed from
the control section. Pressing or pulling them with excessive
force can break the remote switches.
•
If remote switch 1 does not return to the OFF position after
being pressed strongly from the side, gently pull the switch
upwards to return it to the OFF position.
•
Do not hit or bend the electrical contacts on the light guide
connector section. The connection to the light source may be
impaired and faulty contact can result.
•
Do not attempt to bend the endoscope’s insertion tube with
excessive force. Otherwise the insertion tube may be
damaged.
•
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.
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Important Information — Please Read Before Use
Details on clinical endoscopic technique are the responsibility of trained
specialists. Patient safety in endoscopic examinations and endoscopic treatment
can be ensured through appropriate handling by the physician and the medical
facility. Examples of inappropriate handling are given below.
•
Over-insufflating the lumen may cause patient pain and/or perforation.
•
Using improperly or incompletely reprocessed or stored instruments
may cause patient cross-contamination and infection.
•
Applying prolonged suction with the distal end in contact with the
mucosal surface may cause bleeding or suction lesions.
•
Retroflexing the endoscope within the esophagus or duodenal bulb may
cause mucous trauma or impaction of the endoscope.
•
Inserting and using endo-therapy accessories without a clear
endoscopic image may cause burns or perforation.
•
Patient injury may be caused by:
inserting or withdrawing the endoscope, feeding air or
applying suction without a clear endoscopic image
withdrawing the endoscope with the angulation controls
locked
forcefully pulling, twisting or rotating the angulated
bending section
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 1 Checking the Package Contents
Chapter 1 Checking the Package
Contents
Match 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.
This instrument was not disinfected or sterilized before shipment. Before using
this instrument for the first time, reprocess it according to the instructions given
in the endoscope’s companion manual, the “OLYMPUS EVIS TYPE 40 Two
Instrument Channels Series ENDOSCOPE REPROCESSING MANUAL”.
Washing tube (MH-974)
Biopsy valve (MAJ-419)
Mouthpiece (MB-142, 2 pcs)
Endoscope
Water-resistant cap
(MH-553)
Channel cleaning brush (BW-20T)
Channel plug (MH-944)
Injection tube (MH-946)
Channel connection tube
(MAJ-420)
Suction valve
(MH-443, 2 pcs)
Air/water valve
(MH-438, 2 pcs)
Channel-opening cleaning brush (MH-507)
8
Instruction manual
(operation)
AW channel cleaning
adapter (MH-948)
EVIS GIF TYPE 2T240 OPERATION MANUAL
Instruction manual
(reprocessing)
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Chapter 1 Checking the Package Contents
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 2 Instrument Nomenclature and Specifications
Chapter 2 Instrument Nomenclature
and Specifications
2.1
Nomenclature
The endoscope’s main body is illustrated with its valves detached.
Venting connector
Universal cord
Water-resistant cap (MH-553)
Mark 1
13. Suction connector
17. S-cord connector mount
16. Electrical connector
Air pipe
Mark 2
15. Air supply connector
15. Water supply connector
Light guide
Product number and serial number
Electrical contacts
14. Light guide connector section
10
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 2 Instrument Nomenclature and Specifications
7. Suction valve (MH-443)
3. UP/DOWN
angulation lock
1. UP/DOWN angulation
control knob
6. Air/water valve (MH-438)
Suction cylinder
5. Elevator control lever
2. RIGHT/LEFT
angulation control
knob
9. Remote switches
4. RIGHT/LEFT
angulation lock
Air/water cylinder
Control section
Grip section
8. Color code
(Yellow and orange)
18. Suction switchover lever
11. Elevator channel plug
Biopsy valve (MAJ-419)
<Non-sterile>
Boot
10. Instrument channel port
Insertion tube limit mark
Working length
Insertion tube
Distal end
9. Remote switches
EVIS GIF TYPE 2T240 OPERATION MANUAL
12. Bending section
11
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Chapter 2 Instrument Nomenclature and Specifications
2.2
Endoscope functions
1. UP/DOWN angulation control knob
When turned in the “ U” direction, the bending section moves UP; when
turned in the “D ” direction, the bending section moves DOWN.
2. RIGHT/LEFT angulation control knob
When turned in the “R ” direction, the bending section moves RIGHT;
when turned in the “ L” direction, the bending section moves LEFT.
3. UP/DOWN angulation lock
Pushing the lever in the “F ” direction frees angulation. Pushing the lever
in the opposite direction locks the bending section at any desired position.
4. RIGHT/LEFT angulation lock
Turning the lock in the “F ” direction frees angulation. Turning the lock in
the opposite direction locks the bending section at any desired position.
5. Elevator control lever
Turning the lever to “ U” direction raises the forceps elevator. Turning the
lever to opposite direction lowers the forceps elevator.
6. Air/water valve
The hole in the air/water valve is covered to insufflate air and the valve is
depressed to feed water for lens washing. It also can be used to feed air to
remove any fluid or debris adhering to the objective lens.
7. Suction valve
The suction valve is depressed to activate suction. The valve is also used to
remove any fluid or debris adhering to the objective lens.
8. Color code
Yellow (“A”):
Indicator of ø 2.8 channel (Indicator of A channel)
Orange (“B”):
Indicator of ø 3.7 channel (Indicator of B channel)
Color
Used to quickly determine the compatibility of
endo-therapy accessories
(The endoscope can be used with endo-therapy
accessories that have the same color code.).
9. Remote switches 1 to 4
The functions of the remote switches 1 to 4 can be selected on the EVIS
video system center. When selecting the functions, refer to the instruction
manual for the EVIS video system center.
10. Instrument channel port
The instrument channel port functions as:
channel for the insertion of endo-therapy accessories
suction channel
fluid feed channel (from a syringe via the biopsy valve)
12
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 2 Instrument Nomenclature and Specifications
11. Elevator channel plug
To connect the washing tube for cleaning and disinfection of elevator
channel.
12. Bending section
The bending section moves the distal end of the endoscope when the
UP/DOWN and RIGHT/LEFT angulation control knobs are operated.
13. Suction connector
The suction connector connects the endoscope to the suction tube of the
suction pump.
14. Light guide connector section
The light guide connector section connects the endoscope to the output
socket of the light source and transmits light from the light source to the
endoscope.
15. Water supply connector and air supply connector
The water supply connector and the air supply connector connect the
endoscope to the water container via the water container tube.
16. Electrical connector
The electrical connector connects the endoscope to the EVIS video system
center via the videoscope cable.
17. S-cord connector mount
The S-cord connector mount connects the endoscope with the Olympus
electrosurgical unit via the S-cord. The S-cord to conduct leakage current
from the endoscope to the electrosurgical unit. To connect the S-cord, refer
to the instruction manual for the electrosurgical unit.
18. Suction switchover lever
It is possible to aspirate from only the ø 2.8 instrument channel by turning to
the direction of “A” and pushing the suction valve. And also, it is possible to
aspirate from two channels of the ø 2.8 instrument channel and the ø 3.7
instrument channel at the same time by turning to the direction of “AB” and
pushing the suction valve. The suction switchover lever certainly adjusts the
position to the stopper of the biopsy valve. When the suction switchover
lever is not attached properly, only the ø 2.8 instrument channel can be
used for suction.
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 2 Instrument Nomenclature and Specifications
2.3
Specifications
Environment
Operating
environment
Ambient temperature
10 – 40C (50 – 104F)
Relative humidity
30 – 85%
Atmospheric pressure
700 – 1060 hPa
(0.7 – 1.1 kgf/cm2)
(10.2 – 15.4 psia)
Transportation and
storage
environment
Ambient temperature
–47 to 70C (–52.6 to 158F)
Relative humidity
10 – 95%
Atmospheric pressure
700 – 1060 hPa
(0.7 – 1.1 kgf/cm2)
(10.2 – 15.4 psia)
Specifications
Endoscope functions
Model
Optical system
GIF-2T240
Field of view
120
Direction of view
Insertion tube
Forward viewing
Depth of field
3 – 100 mm
Distal end outer
diameter
ø 11.8 mm
Insertion tube outer
diameter
ø 11.8 mm
Working length
1030 mm
Distal end enlarged
1. Air/water nozzle
2. Light guide lens
3. Objective lens
4. Instrument channel (ø 3.7 mm)
5. Instrument channel (ø 2.8 mm)
2.
4.
UP
LEFT
RIGHT
5.
14
EVIS GIF TYPE 2T240 OPERATION MANUAL
3.
1.
DOWN
Page 19
Chapter 2 Instrument Nomenclature and Specifications
Instrument
channel
Channel inner diameter
Minimum visible
distance
ø 2.8 mm
ø 3.7 mm
3 mm from the distal end
Direction from which
endo-therapy
accessories enter and
exit the endoscopic
image
Air flow rate
25 cm3/sec
Note: Standard when CLV-260SL
(high air pressure) is used.
Bending section
Angulation range
Total length
EVIS GIF TYPE 2T240 OPERATION MANUAL
UP 210,
DOWN 90,
RIGHT 100,
LEFT 100
1345 mm
15
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Chapter 2 Instrument Nomenclature and Specifications
Medical devices
directive
EMC
This device complies with the
requirements of Directive 93/42/EEC
concerning medical devices.
Classification: Class II a
Applied standard;
IEC 60601-1-2: 2001
This instrument complies with the
standards listed in the left column.
CISPR 11 of emission:
Group 1, Class B
This instrument complies with the
EMC standard for medical electrical
equipment; edition 2 (IEC 60601-1-2:
2001). However, when connecting to
an instrument that complies with the
EMC standard for medical electrical
equipment; edition 1 (IEC 60601-1-2:
1993), the whole system complies
with edition 1.
Year of
manufacture
Degree of
protection
against electric
shock
16
2712345
The year of manufacture is given in
the second digit of the serial number.
TYPE BF applied part
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 3 Preparation and Inspection
Chapter 3 Preparation and Inspection
3.1
•
Before each case, prepare and inspect this instrument as
instructed below. Inspect other equipment used with this
instrument as instructed in their respective instruction
manuals. Should the slightest irregularity be suspected, do
not use this instrument and see Chapter 5,
“Troubleshooting”. If the irregularity is still suspected after
consulting Chapter 5, contact Olympus. Damage or
irregularity may compromise patient or user safety and may
result in more severe equipment damage.
•
This instrument was not disinfected or sterilized before
shipment. Before using this instrument for the first time,
reprocess it according to the instructions given in the
endoscope’s companion manual, the “OLYMPUS EVIS
TYPE 40 Two Instrument Channels Series ENDOSCOPE
REPROCESSING MANUAL”.
Preparation of the equipment
Prepare the equipment shown in Figure 3.1 (for compatibility, see the “System
chart” in the Appendix) and personal protective equipment, such as eye wear,
face mask, moisture-resistant clothing and chemical-resistant gloves, before
each use. Refer to the respective instruction manuals for each piece of
equipment.
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 3 Preparation and Inspection
Video monitor
Video system center
Light source
Endo-therapy
accessories
Suction pump
Mouthpiece
Water container
Biopsy valve
Endoscope
• Paper towels
• Trays
• Personal protective equipment
• Lint-free cloth
Figure 3.1
3.2
Preparation and inspection of the endoscope
Clean and disinfect or sterilize the endoscope as described in its companion
reprocessing manual.
Inspection of the endoscope
18
1.
Inspect the control section and the endoscope connector for excessive
scratching, deformation, loose parts or other irregularities.
2.
Inspect the boot and the insertion tube near the boot for bends, twists or
other irregularities.
3.
Inspect the external surface of the entire insertion tube including the
bending section and the distal end for dents, bulges, swelling, scratching,
holes, sagging, transformation, bends, adhesion of foreign bodies, dropout
of parts, any protruding objects or other irregularities.
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 3 Preparation and Inspection
4.
Holding the insertion tube gently with one hand, carefully run your fingertips
over the entire length of the insertion tube in both directions (see Figure
3.2). Confirm that no objects or metallic wire protrude from the insertion
tube. Also confirm that the insertion tube is not abnormally rigid.
Figure 3.2
5.
Using both hands, bend the insertion tube of the endoscope into a
semicircle. Then, moving your hands as shown by the arrows in Figure 3.3,
confirm that the entire insertion tube can be smoothly bent to form a
semicircle and that the insertion tube is pliable.
Figure 3.3
6.
Gently hold the midpoint of the bending section and a point 20 cm from the
distal end. Push and pull gently to confirm that the junction between the
bending section and the insertion tube is not loose.
7.
Inspect the objective lens at the distal end of the endoscope’s insertion tube
for scratching, cracks, stains, gaps around the lens or other irregularities.
8.
Inspect the air/water nozzle at the distal end of the endoscope’s insertion
tube for abnormal swelling, bulges, dents or other irregularities.
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 3 Preparation and Inspection
Inspection of the bending mechanisms
Perform the following inspections while the bending section is straight.
If the movement of the UP/DOWN angulation lock,
RIGHT/LEFT angulation lock and their angulation control
knobs are loose and/or not smooth, or the bending section
does not angulate smoothly, the bending mechanism may be
abnormal. In this case, do not use the endoscope because it
may be impossible to straighten the bending section during
an examination.
Inspection for smooth operation
1.
Confirm that both the UP/DOWN and RIGHT/LEFT angulation locks are
placed in the “F ” position.
2.
Turn the UP/DOWN and RIGHT/LEFT angulation control knobs slowly in
each direction until they stop. Confirm that the bending section angulates
smoothly and correctly and that maximum angulation can be achieved.
3.
Turn the UP/DOWN and RIGHT/LEFT angulation control knobs slowly to
their respective neutral positions. Confirm that the bending section returns
smoothly to an approximately straight condition.
Inspection of the UP/DOWN angulation mechanism
20
1.
Turn the UP/DOWN angulation lock in the opposite direction of the “F ”
mark. Then turn the UP/DOWN angulation control knob in the “ U” or the
“D ” direction until it stops.
2.
Confirm that the angle of the bending section is roughly stabilized when the
UP/DOWN angulation control knob is released.
3.
Confirm that the bending section straightens out when the UP/DOWN
angulation lock is turned in the “F ” direction and the UP/DOWN
angulation control knob is released.
EVIS GIF TYPE 2T240 OPERATION MANUAL
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Chapter 3 Preparation and Inspection
Inspection of the RIGHT/LEFT angulation mechanism
1.
Turn the RIGHT/LEFT angulation lock in the opposite direction of the “F ”
mark. Then turn the RIGHT/LEFT angulation control knob in the “R ” or
the “ L” direction until it stops.
2.
Confirm that the angle of the bending section is roughly stabilized when the
RIGHT/LEFT angulation control knob is released.
3.
Confirm that the bending section straightens out when the RIGHT/LEFT
angulation lock is turned in the “F ” direction and the RIGHT/LEFT
angulation control knob is released.
Inspection of the forceps elevator mechanism
Perform the following inspections while the bending section is straight.
Inspection for smooth operation
1.
Turn the elevator control lever slowly all the way in the opposite direction of
the “ U” direction. Confirm that the portion of the elevator wire extending
from the distal end of the insertion tube is not broken or bent.
2.
While observing the forceps elevator at the distal end of the insertion tube,
slowly turn the elevator control lever all the way in the “ U” direction and
confirm that the lever can be operated smoothly and that the forceps
elevator is raised smoothly.
3.
Then slowly turn the elevator control lever all the way in the opposite
direction and confirm that the lever can be operated smoothly and that the
forceps elevator is lowered smoothly (see Figure 3.4).
Figure 3.4
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Chapter 3 Preparation and Inspection
3.3
Preparation and inspection of accessories
Clean and disinfect or sterilize the air/water valve, suction valve and biopsy
valve (MAJ-419) as described in the endoscope’s companion reprocessing
manual.
Inspection of the air/water and suction valves
Inspect the air/water and suction valves (see Figures 3.5 and 3.6).
1.
Confirm that the holes are not blocked.
2.
Confirm that the valves are not deformed or cracked.
3.
Check for excessive scratching or tears in the air/water valve’s seals.
Hole
Spring
Seals
Skirt
Hole
Air/water valve (MH-438)
Figure 3.5
Spring
Skirt
Hole
Suction valve (MH-443)
Figure 3.6
22
EVIS GIF TYPE 2T240 OPERATION MANUAL