CHOLEDOCHO VIDEOSCOPE Reprocessing Manual

Contents

Contents Chapter 1 General Policy ... 1 1.1

Instructions ... 1

1.2

Importance of reprocessing ... 2

1.3

Signal words ... 2

1.4

Precautions ... 3

1.5

Reprocessing before the first use ... 7

1.6

Reprocessing and storage after use ... 7

1.7

Reprocessing before patient procedure ... 8

Chapter 2 Function and Inspection of the Accessories for Reprocessing ... 9 2.1

Sterilization cap (MAJ-1538) ... 9

2.2

Sterilization tray (WA05991A, sold separately) ... 11

2.3

Channel cleaning brush (BW-15B) ... 12

2.4

Channel-opening cleaning brush (MH-507) ... 14

2.5

Single use combination cleaning brush (BW-411B, sold separately) ... 16

2.6

Suction cleaning adapter (MAJ-1077) ... 19

Chapter 3 Compatible Reprocessing Methods and Chemical Agents ... 21 3.1

Compatibility summary ... 21 Microbiological efficacy ... 22 Material durability ... 22 List of compatible methods validated in terms of microbiological efficacy and material durability ... 23 List of compatible methods validated in terms of material durability ... 25

3.2

Water (for reprocessing) ... 29

3.3

Detergent solution ... 29

3.4

Disinfectant solution ... 30

3.5

Rinse water ... 30

3.6

Alcohol ... 31

3.7

Ethylene oxide gas sterilization ... 31

3.8

Steam sterilization (autoclaving) ... 33

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Chapter 4 Reprocessing Workflow for Endoscopes and Accessories... 35 4.1

Summary of reprocessing workflow ... 35

4.2

Workflow for cleaning and sterilizing endoscopes and accessories using an AER/WD ... 36

4.3

Workflow for manually cleaning and sterilizing endoscopes and accessories ... 38

Chapter 5 Reprocessing the Endoscope (and related reprocessing accessories) ... 41 5.1

Summary of reprocessing the endoscope ... 41

5.2

Preparing the equipment for reprocessing ... 43 Equipment needed ... 43

5.3

Precleaning the endoscope ... 45 Equipment needed ... 45 Preparation ... 46 Wipe the insertion section ... 47 Aspirate water ... 48 Detach the accessories from the endoscope ... 50 Detach the video connector from the video system center ... 52 Detach the light guide connector from the video system center ... 52

5.4

Leakage testing of the endoscope ... 53 Equipment needed ... 53 Perform the leakage test ... 54

5.5

Manually cleaning the endoscope and accessories ... 63 Equipment needed ... 64 Clean the external surfaces ... 65 Brush the channels ... 69 Aspirate detergent solution through the instrument channel and the suction channel ... 77 Flush the suction cleaning adapter with detergent solution ... 79 Immerse the endoscope and the suction cleaning adapter in detergent solution ... 80 Remove detergent solution from all channels ... 81 Dry the external surfaces ... 82

5.6

Manually disinfecting the endoscope and accessories ... 83 Equipment needed ... 83 Preparation ... 83 Flush all channels with disinfectant solution ... 84 Immerse the endoscope and the suction cleaning adapter in disinfectant solution ... 85 Remove the endoscope and the suction cleaning adapter from disinfectant solution ... 86

5.7

Rinsing the endoscope and accessories following disinfection ... 87 Equipment needed ... 88 Rinse the endoscope and accessories ... 88 Alcohol flush ... 91

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5.8

Sterilizing the endoscope and accessories ... 93 Equipment needed ... 93 Ethylene oxide gas sterilization of the endoscope and accessories ... 93 Steam sterilization (autoclaving) of the accessories ... 100 STERRAD® 100S/NX®/100NX® sterilization of the endoscope and accessories ... 101 V-PRO® maX sterilization of the endoscope and accessories ... 103

5.9

Presoaking the endoscope ... 105 Equipment needed ... 105 Presoak the endoscope ... 106

Chapter 6 Reprocessing the Accessories ... 109 6.1

Summary of reprocessing the accessories ... 109 Equipment needed ... 110

6.2

Manually cleaning the accessories ... 112 Equipment needed ... 112 Disassembling the suction valve (MAJ-207) ... 113 Disassembling the forceps/irrigation plug (isolated type) (MAJ-891) ... 114 Clean the external surfaces ... 115 Flush the suction cleaning adapter (MAJ-1077) ... 115 Clean the luer-split (MAJ-2092) ... 116 Clean the forceps/irrigation plug (isolated type) (MAJ-891) ... 116 Clean the suction valve (MAJ-207) ... 117 Clean the brushes ... 119 Immerse the accessories in detergent solution ... 120 Remove detergent solution from all accessories ... 120 Dry the external surfaces ... 121

6.3

Manually disinfecting the accessories ... 122 Equipment needed ... 122 Preparation ... 122 Flush the accessories with disinfectant solution ... 122 Flush the luer-split (MAJ-2092) ... 123 Flush the forceps/irrigation plug (isolated type) (MAJ-891) ... 123 Flush the suction valve (MAJ-207) ... 124 Rub the brushes ... 124 Immerse the accessories in disinfectant solution ... 125 Remove the accessories from disinfectant solution ... 125

6.4

Rinsing the accessories following disinfection ... 126 Equipment needed ... 126 Rinse the accessories ... 127 Flush the forceps/irrigation plug (isolated type) (MAJ-891) ... 128 Remove the accessories from rinse water ... 130 Alcohol flush ... 130

6.5

Sterilizing the accessories ... 132 Ethylene oxide gas sterilization of the accessories ... 132 Steam sterilization (autoclaving) of the accessories ... 132

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Chapter 7 Reprocessing Endoscopes and Accessories Using an Automated Endoscope Reprocessor/Washer-Disinfector ... 133 7.1

Reprocessing endoscopes and accessories using an automated endoscope reprocessor/washer-disinfector ... 133

Chapter 8 Storage and Disposal ... 135

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8.1

Precautions of storage and disposal ... 135

8.2

Storing the sterilized endoscope and accessories ... 136

8.3

Disposal ... 136

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1.1 Instructions

Chapter 1 1.1

General Policy

Ch.1

Instructions • This manual contains the reprocessing methods recommended by Olympus for the endoscopes and accessories listed on the front cover. • This instruction manual contains essential information on reprocessing endoscopes and accessories safely and effectively. • Before reprocessing, thoroughly review this manual and the manuals for the reprocessing equipment and chemicals that will be used for reprocessing. Reprocess all the devices as instructed. • Note that the complete instruction manual set for the endoscope and accessories consists of this manual and the “OPERATION MANUAL” with your endoscope model listed on the cover. Both manuals accompanied the endoscope at shipment. • Keep this manual and all related manuals in a safe and accessible location (e.g., in the reprocessing area). • If you have any questions or comments about any information in this manual, or if a problem that cannot be solved occurs while reprocessing, contact Olympus.

 Terms used in this manual AER/WD: AER and WD are abbreviations for Automated Endoscope Reprocessor and Washer-Disinfector, which are used for reprocessing the endoscopes and accessories.

Disinfection: Some countries classify the disinfection level and define “high-level disinfection”, and other countries do not. The term “disinfection” is used, including meaning “high-level disinfection”, in this manual. For disinfectant solution, follow the instructions as described in Section 3.4, “Disinfectant solution”.

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1.2 Importance of reprocessing

Ch.1

1.2

Importance of reprocessing

The medical literature reports incidents of cross-contamination resulting from improper reprocessing. It is strongly recommended that all individuals engaged in reprocessing closely observe all instructions given in this manual and the manuals for all ancillary equipment, and have a thorough understanding of the following items: • Professional health and safety policies of your hospital • Instruction manuals for the endoscope, accessories, and all the other reprocessing equipment • Structure and handling of the endoscope and accessories • Handling of pertinent chemicals When selecting appropriate methods and conditions for cleaning, disinfection, and sterilization, follow the policies at your institution, applicable national laws and standards, and professional society guidelines and recommended practices, in addition to the instructions given in this manual.

1.3

Signal words

The following signal words are used throughout this manual:

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices or potential equipment damage.

NOTE

2

Indicates additional helpful information.

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1.4 Precautions

1.4

Ch.1

Precautions WARNING • An insufficiently reprocessed endoscope and/or accessory may pose an infection control risk to the patients and/or operators who contact them. • The endoscope reprocessor, video system center, and/or front panels of equipment may cause an infection control risk. Perform proper cleaning and/or disinfection as described in their respective instruction manuals. A tap, basin, and/or nozzle of pharyngeal anesthetic spray that medical personnel come in contact with may cause an infection control risk as well. Perform proper replacement, cleaning, and/or disinfection. • All disinfection methods (whether performed manually or by an AER/WD) and all sterilization methods (whether performed by ethylene oxide gas or steam) require thorough prior cleaning of the instruments being reprocessed. If the instruments are not adequately cleaned prior to disinfection/sterilization, these processes will be ineffective. Immediately after each patient procedure and before disinfection/sterilization, thoroughly clean the endoscope and the accessories used with the endoscope. • All channels of the endoscope and all accessories used with the endoscope during the patient procedure must be reprocessed after each patient procedure, even if the channels or accessories were not used during the patient procedure. Insufficient reprocessing of these components may pose an infection control risk to patients and/or operators. • Residual disinfectant solution and detergent solution may cause adverse reactions in patients. Therefore, rinse all external surfaces and channels of the endoscope and accessories thoroughly with water to remove residual disinfectant solution following disinfection and detergent solution following cleaning. • The results of sterilization depend on various factors. These factors include how the equipment was packaged and the placing and loading of the package in the sterilization device. Verify the sterilization process using biological and/or chemical indicators. Follow the guidelines for sterilization issued by national authorities, professional organizations, and infection control professionals, including the frequency of the above verification, as well as the instruction manual for the sterilization device.

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1.4 Precautions

Ch.1

WARNING • Establish an internal system of identifying contaminated versus reprocessed endoscopes and accessories to prevent both mix-ups and cross-contamination. Some national or professional guidelines recommend separating the dirty (contaminated) area, clean area, and storage area. Touching a reprocessed endoscope and/or accessories with contaminated gloves or placing them on a contaminated hanger or surface, including letting them touch the floor, will recontaminate them. • Prior to each patient procedure, confirm that the endoscope and accessories have been properly reprocessed and stored. If there are any doubts or questions, reprocess them again before the patient procedure, following the instructions given in this manual. • Perform a leakage test on the endoscope after each precleaning procedure. Do not use the endoscope if a leak is detected. Use of an endoscope with a leak may cause a sudden loss of the endoscopic image, damage to the bending mechanism, or other malfunctions. Use of a leaking endoscope may also pose an infection control risk. Leakage tester

Figure 1.1 • Store alcohol in an airtight container. Alcohol stored in an open container may cause a fire hazard and may result in a loss of efficacy due to evaporation. • The accessories listed on the front cover of this manual cannot be refurbished or repaired and are intended to be replaced once they show any signs of wear and tear. Should any irregularity be observed, use a replacement accessory instead. Using defective accessories may cause equipment malfunction, reduce the efficacy of reprocessing, present a risk to patients and/or operators, or damage the endoscope and/or accessories.

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1.4 Precautions

Ch.1

WARNING • Single-use brush, such as the single use combination cleaning brush (BW-411B), is designed for cleaning only one endoscope and its related accessories. Dispose of the single-use brush immediately after use. Using a single-use brush to clean multiple endoscopes and/or accessories may reduce its cleaning efficacy and may damage the brush leading to brush breakage or the endoscope and/or accessory damage. • Patient debris and used reprocessing chemicals pose infection control risks. To guard against contact with dangerous chemicals and potentially infectious material, wear appropriate personal protective equipment during reprocessing. Such protective equipment should include appropriate eyewear, face mask, cap, moisture-resistant clothing, shoe covers, and chemical-resistant gloves that fit properly and are long enough to prevent skin exposure. • The reprocessing room must be adequately ventilated to minimize the risks from chemical vapors. • Always remove contaminated personal protective equipment before leaving the reprocessing area to prevent contamination from spreading. • Only Olympus-recommended or Olympus-endorsed AERs/WDs have been validated by Olympus. When using an AER/WD that is not recommended by Olympus, the manufacturer of the AER/WD is responsible for validating compatibility of the AER/WD with each Olympus endoscope and accessory. • Before using an AER/WD, confirm that it is capable of reprocessing the endoscope including all channels and accessories. Be sure to attach all required connectors. Otherwise, insufficient reprocessing may pose an infection control risk. If you are uncertain as to the ability of your AER/WD to reprocess the endoscope including all channels and accessories, contact the manufacturer of the AER/WD for specific instructions and information on compatibility and required connectors. • The instructions provided in this manual are not valid for Olympus devices repaired by a non-Olympus facility. The Olympus recommended reprocessing procedures have not been validated for reprocessing devices repaired by a non-Olympus facility. In the event that your device has been repaired by a non-Olympus facility, contact the repair facility for instructions regarding reprocessing. • Prions, which are the pathogenic agents of the Creutzfeldt-Jakob disease (CJD), cannot be destroyed or inactivated by the reprocessing methods stated in this instruction manual. When using the endoscope and accessories on patients with CJD or variant Creutzfeldt-Jakob disease (vCJD), be sure to use them for such patients only, or immediately dispose of them after use in an appropriate manner to prevent the usage of exposed devices on other patients. For methods to handle CJD, follow the respective guidelines in your country.

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1.4 Precautions

Ch.1

WARNING • The endoscope and accessories may be damaged by published methods for destroying or inactivating prions. For information on the durability of Olympus equipment against a particular reprocessing method, contact Olympus. In general, Olympus cannot guarantee the effectiveness, safety, and durability of reprocessing methods not described in this reprocessing manual. If you choose to use a reprocessing method not recommended in this manual, the local institution and/or physicians must assume responsibility for its safety and efficacy. Make sure to carefully inspect each piece of endoscopic equipment for irregularities (damage) prior to each patient procedure. Do not use the equipment if any irregularity is observed. • Good quality control practices typically require appropriate documentation. Items such as local SOPs (Standard Operating Procedures), confirmation of operator training, routine testing of the disinfectant’s MEC (Minimal Effective Concentration), confirmation of the disinfectant’s use-life, etc. should be documented as performed. • In case of performing any microbial test or other test using extraction fluid on the reprocessed endoscope, the reprocessing process has to be performed again according to the “REPROCESSING MANUAL” before patient procedure.

CAUTION • Before immersing the endoscope in reprocessing fluids, confirm that the sterilization cap (MAJ-1538) is not attached to the endoscope. If the sterilization cap is attached, the reprocessing fluids will be able to penetrate the inside of the endoscope, and it can be damaged. • When aerating or irrigating the endoscope channels, the air or water pressure must not exceed 0.2 MPa (2 kgf/cm2, 29 psig). Higher pressures may cause damage to the endoscope. • Store spare accessories in their original packaging to prevent damage. • To prevent damage, do not apply excessive force to the endoscope and accessories during reprocessing. • Vapors from disinfectant solution and alcohol may damage electronic devices such as computers. Properly manage the quality and durability of the devices used in reprocessing rooms and the ventilation performance of the rooms.

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1.5 Reprocessing before the first use

1.5

Ch.1

Reprocessing before the first use

New endoscopes, repaired endoscopes, accessories, and the carrying case for endoscopes are not reprocessed prior to shipping from Olympus, regardless of whether those instruments are for new purchase, demo, or loaner purposes. Reprocess all such endoscopes and accessories received from Olympus according to the instructions given in this manual before storage and before using them in a patient procedure.

1.6

Reprocessing and storage after use WARNING • Do not reuse detergent solution. • Do not reuse rinse water. • Disinfectant solution is only effective when used according to the disinfectant manufacturer’s instructions. Follow the manufacturer’s instructions regarding activation (if required), concentration, temperature, contact time, use life, and expiration date required to achieve disinfection. • If the disinfectant solution is reused, check its efficacy by proper methods, such as using a test strip, according to the disinfectant manufacturer’s recommendations prior to use. • Do not reuse alcohol. • Alcohol is not a sterilant or high-level disinfectant. • To maintain sterility of equipment following sterilization, use sterilization pouches and wraps according to national guidelines.

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1.7 Reprocessing before patient procedure

Ch.1

1.7

Reprocessing before patient procedure WARNING Improper handling, such as touching a reprocessed endoscope and/or accessories with contaminated gloves, placing a reprocessed device on a contaminated hanger or surface, allowing devices to touch the floor, etc. will recontaminate the device.

NOTE Some national or professional guidelines recommend reprocessing endoscopes prior to their first use of the day. Confirm that the endoscope and accessories have undergone proper reprocessing following their last use and that they have been stored properly. Check the storage period of reprocessed endoscopes, and check for surface contamination (e.g., dust). Check the expiration date marked on all items and check for tears or breaches in the sterile packaging. If there are any doubts or questions concerning whether a device is contaminated, reprocess it again following the instructions given in this manual.

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2.1 Sterilization cap (MAJ-1538)

Chapter 2

Function and Inspection of the Accessories for Reprocessing

Ch.2

Certain accessories are required for reprocessing the endoscope. This chapter describes the function of these accessories. It also describes how to inspect these accessories before using them to reprocess the endoscope.

2.1

Sterilization cap (MAJ-1538) ETO cap

Figure 2.1

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2.1 Sterilization cap (MAJ-1538)

 Function When performing gas sterilization (e.g., ethylene oxide gas sterilization, hydrogen peroxide low temperature plasma), the sterilization cap must be attached to the venting connector on the light guide connector.

Ch.2

CAUTION If the sterilization cap is not attached to the venting connector during the gas sterilization, the air inside the endoscope will expand and could rupture the bending section cover and/or damage the angulation mechanism.

Venting connector

Sterilization cap

Figure 2.2

 Inspection Confirm that the sterilization cap is free from scratches, flaws, and debris.

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2.2 Sterilization tray (WA05991A, sold separately)

2.2

Sterilization tray (WA05991A, sold separately) Ch.2

Figure 2.3

 Function This sterilization tray is used to transport and sterilize the endoscope and accessories.

 Inspection Check every part of the sterilization tray for damage.

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2.3 Channel cleaning brush (BW-15B)

2.3

Channel cleaning brush (BW-15B)

Ch.2 Metal tip Bristles

Brush head

Shaft

Figure 2.4

 Function The channel cleaning brush is used to brush the inside of the instrument channel and suction channel of the endoscope, the inside of the luer-split (MAJ-2092) and the forceps/irrigation plug (isolated type) (MAJ-891), and the inside of the suction valve (MAJ-207). Suction cylinder Instrument channel port

Suction channel

Instrument channel

Figure 2.5

Luer-split (MAJ-2092)

Figure 2.6

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Forceps/irrigation plug (isolated type) (MAJ-891)

2.3 Channel cleaning brush (BW-15B)

Ch.2 Suction valve (MAJ-207)

Figure 2.7

 Inspection 1 Confirm that the brush head and the metal tip of the distal end are securely attached. Check the brush head for loose or missing bristles.

2 Check the bristles for damage. If the bristles are crushed, gently straighten them with your gloved fingertips.

3 Check for bends, scratches, and other damage to the shaft. 4 Visually check for debris on the shaft and/or the bristles of the brush head. If there is debris on the brush, immerse the brush in the water as described in Section 3.2, “Water (for reprocessing)” and clean the brush until no debris is observed on the brush. NOTE The channel cleaning brush does not need to be reprocessed prior to its first use.

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2.4 Channel-opening cleaning brush (MH-507)

2.4

Channel-opening cleaning brush (MH-507)

Ch.2 Shaft Bristles

Brush handle

Brush head

Figure 2.8

 Function The channel-opening cleaning brush is used to brush the endoscope’s suction cylinder, instrument channel port, and both the inside and outside of the suction valve (MAJ-207).

Suction cylinder Instrument channel port

Figure 2.9

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2.4 Channel-opening cleaning brush (MH-507)

Piston

Ch.2

Spring

Main body Valve

Suction valve (MAJ-207)

Figure 2.10

 Inspection 1 Check the brush head for loose or missing bristles. 2 Check the bristles for any damage. If the bristles are crushed, gently straighten them with your gloved fingertips.

3 Check for bends, scratches, and other damage to the shaft. 4 Visually check for debris on the shaft and/or the bristles of the brush head. If there is debris on the brush, immerse the brush in the water as described in Section 3.2, “Water (for reprocessing)” and clean the brush until no debris is observed on the brush. NOTE The channel-opening cleaning brush does not need to be reprocessed prior to its first use.

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