Cleaning and Maintenance Users Manual
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User's Manual SERVO-air Ventilator System Cleaning and Maintenance
| Table of contents |
Table of contents
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SERVO-air Ventilator System, User's Manual Infologic 1.18
Introduction Patient unit and user interface Expiratory cassette O2 cell (maintenance) Inspiratory channel (maintenance) Aerogen Pro nebulizer Accessories Recommended intervals and disinfectants
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| 1 | Introduction |
1 Introduction Table of contents
1.1 1.2 1.3 1.4
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Introduction General information Safety guidelines Symbols
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SERVO-air Ventilator System, User's Manual
| Introduction | 1 |
1.1 Introduction Unless otherwise stated, the information in this User's Manual is valid for the SERVO-air ventilator system. Here you will find the information needed to safely clean and maintain the ventilator system.
1.3 Safety guidelines WARNING! Indicates critical information about a potential serious outcome to the patient or the user.
CAUTION: Indicates instructions that must be followed in order to ensure the proper operation of the equipment.
1.2 General information As cleaning practices vary widely among health care institutions, it is not possible for Maquet to specify particular practices that will meet all needs, or to be responsible for the effectiveness of cleaning procedures carried out in the patient care setting. Maquet recommends methods that have been validated using the specified equipment and procedures outlined in this manual. Other methods may work but are not covered by the warranty unless Maquet has given written permission.
Important: Indicates information intended to help you operate the equipment or its connected devices easily and conveniently.
Note: Indicates information requiring special attention.
CAUTIONS: • All personnel should be aware of the risk of parts being infected when disassembling and cleaning the ventilator system. • The expiratory channel and expired gas from the exhaust port may be contaminated. • All disposable parts must be discarded according to hospital routines and in an environmentally safe way.
SERVO-air Ventilator System, User's Manual
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| 1 | Introduction |
Important: • Follow your hospital's routines for handling infectious material when handling any part of the ventilator system. • If possible, cleaning should be performed immediately after use and always before steam autoclaving/disinfection. Blood or other residues should not be allowed to dry onto the devices. • Water quality affects cleaning/disinfection. Maquet recommends drinking water quality as the minimum quality level. • Maquet recommends the use of Servo Duo Guard bacterial filter or equivalent to reduce the transmission of bacteria from the patient via the expiratory cassette to the ambient air. This reduces the risk of infection spread and prolongs the life of the expiratory cassette due to reduced cleaning requirements. • The use of a washer-disinfector for cleaning/disinfection is recommended if bacterial filters are not used. • Steam autoclaving is normally not necessary for the expiratory cassette, as it is not an invasive instrument, but when applied, use processes recommended by Maquet.
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Notes: • Single use (i.e. disposable) items shall not be reused. Cleaning of single use items can damage the item and compromise its intended use. Reuse of single use items increases the risk of spreading infections and compromises the durability of the item. • Maquet recommends that the equipment is inspected regularly. • A preventive maintenance must be performed by authorized personnel at least once every year as long as the unit is not used more than normal. Normal operation during one year is estimated to correspond to approximately 5000 hours of operation. The current operating time and time to next preventive maintenance is presented in SERVICE & SETTINGS/BIOMED/STATUS/General on the user interface.
1.4 Symbols Hazardous waste The device contains parts which must not be disposed of with ordinary waste. Special waste This product contains electronic and electrical components. Discard disposable, replaced and left-over parts in accordance with appropriate industrial and environmental standards.
SERVO-air Ventilator System, User's Manual
| Patient unit and user interface | 2 |
2 Patient unit and user interface 2.1 Preparations
2.1.1 Remove the expiratory cassette
Note: Cleaning should be done after each patient or according to hospital routines.
Important: The expiratory cassette is a precision instrument and must be handled carefully.
• Switch off the ventilator system using the on/off switch on the patient unit. • Disconnect the ventilator system from the mains power and gas supply. • Disconnect any optional equipment from the mains power and from the ventilator system. • Discard disposable items according to hospital routines and environmental regulations. - Servo Duo Guard viral/bacterial filter - SERVO humidifier/HME
• Tilt the user interface backwards.
- disposable patient tubing
• Press the button on the expiratory cassette.
- disposable airway adapter
• Tilt the cassette upwards and remove.
- Aerogen Solo nebulizer • Remove the expiratory cassette.
SERVO-air Ventilator System, User's Manual
Important: After removing the expiratory cassette, do not pour any fluid into the expiratory cassette compartment. Avoid contact with electrical connectors.
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| 2 | Patient unit and user interface |
2.2 Wiping and discarding
2.3 Assembling 2.3.1 Insert the expiratory cassette
Wipe all parts with cleaning wipes or a soft lint-free cloth moistened in soap & water or detergent-based disinfectant. In case of more contaminated surfaces, use ethyl alcohol (70%) or isopropyl alcohol (70%). Avoid contact with electrical connectors. Important: Do not use abrasive or sharp tools to clean the user interface.
• Hinge a clean expiratory cassette and press it firmly down into lock position. Important: Make sure that the cassette clicks into position. Check that it cannot be moved upwards and that the button on top of the cassette is completely ejected. • Note on a log sheet that a routine cleaning has been performed. Refer to hospital routines.
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SERVO-air Ventilator System, User's Manual
| Patient unit and user interface | 2 |
2.3.2 Pre-use check
2.4.3 Replace the dust filter
After cleaning, always perform a pre-use check. Refer to the ventilator system User's Manual.
Check the dust filter and replace it once a month or more often when necessary.
If the pre-use check fails: • Carefully shake/tilt the cassette (5-7 times).
Note: The dust filter must be replaced. If it is washed it will lose its characteristics.
• Run the cassette in a ventilator system with a test lung for 10 minutes. • Re-do the pre-use check.
2.4 Preventive maintenance 2.4.1 Check fan filters Regularly check that the fan filter on both sides looks clean (i.e. black). If dusty, remove (snap off/snap on) and rinse in water. Shake out, ensuring that the filter is free from excess water.
• Open the air inlet filter lid by pressing the two latches towards each other.
• Replace dust filter. 2.4.2 Check air inlet filter The air inlet filter must be exchanged once a year during preventive maintenance or more often when necessary.
SERVO-air Ventilator System, User's Manual
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| 2 | Patient unit and user interface |
• Close the lid.
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SERVO-air Ventilator System, User's Manual
| Expiratory cassette | 3 |
3 Expiratory cassette 3.1 Preparations • Remove the expiratory cassette Refer to section Remove the expiratory cassette on page 7.
3.2 Disinfection There are two disinfection procedures for the expiratory cassette and associated parts when no bacterial filter is used: • Washer-Disinfector (ISO 15883-1) (recommended) • Disinfectant
• Wash the parts with water only in a washer-disinfector at a temperature of 85-95°C (185-203°F). Refer to section Recommended intervals and disinfectants on page 24.
3.2.1 Washer-disinfector If rinsing before disinfection is not included in the washer disinfector program: • Rinse the parts thoroughly in water (<35°C/95°F). • Let the water flow through the parts. Important: Immediate rinsing in water (<35°C/95°F) can remove particles and reduces the risk of cross-contamination between patients.
• Place the expiratory cassette on its side with the electrical connector uppermost. Notes: • The water pressure in the washer-disinfector should not exceed 1.5 bar. • The maximum water flow should not exceed 10 l/min. • The water must have free passage through the cassette.
SERVO-air Ventilator System, User's Manual
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| 3 | Expiratory cassette |
3.2.2 Disinfectant
Rinse after disinfection Important: Follow the disinfectant manufacturer's recommendation and instructions regarding rinsing.
• Let the parts soak in disinfectant. Refer to section Recommended intervals and disinfectants on page 24.
Mineral deposits from disinfectant on the expiratory cassette affect the function. It is important to rinse the expiratory cassette thoroughly. Residues from chemicals can affect the patient, cause leakage and extra stress on the material.
Important: Follow the disinfectant manufacturer’s recommendations and instructions, otherwise the cassette may be damaged or not disinfected properly.
• Rinse the parts thoroughly in water to remove all traces of disinfectant. Let the water flow through the parts. • Carefully shake and tilt the cassette, turn upside down and repeat at least 5-7 times.
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SERVO-air Ventilator System, User's Manual
| Expiratory cassette | 3 |
3.3 Drying alternatives
3.3.1 Recommended position in a drying cabinet
Important: The expiratory cassette must be dried before use (if not dry, the expiratory cassette may not pass the pre-use check). Always shake/tilt the cassette carefully (5-7 times). There are several drying alternatives for the expiratory cassette: • Drying cabinet 1 hour in maximum 70°C (158°F); if available, connect a 22 mm air hose to the expiratory cassette for extra drying effect, or
3.3.2 Recommended position in room air
• Drying the cassette in room air 12-24 hours, depending on surrounding conditions.
If the pre-use check is not passed after drying then: • Run the cassette in a ventilator system with a test lung for 10 minutes, or • Dry the cassette in room air (if no drying cabinet is available) 12-24 hours, depending on surrounding conditions. Notes: • Never dry the cassette by applying high-pressure air as the internal tubing may be damaged. • Drying may not be necessary if the washer-disinfector has a drying phase.
SERVO-air Ventilator System, User's Manual
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| 3 | Expiratory cassette |
3.4 Steam autoclaving Note: Steam autoclaving procedures are not recommended. Steam autoclaving will reduce the lifetime of the expiratory cassette and is not recommend as a cleaning method. Steam autoclaving is normally not necessary for the expiratory cassette, as it is not an invasive instrument, but when applied, use validated processes only.
3.4.4 Steam autoclave Refer to section Recommended intervals and disinfectants on page 24. 3.4.5 Drying after steam autoclaving Refer to section Drying alternatives on page 13.
3.5 Assembling Refer to section Assembling on page 8.
Refer to section Recommended intervals and disinfectants on page 24. 3.4.1 Cleaning • Clean before steam autoclaving. Refer to section Washer-disinfector on page 11. 3.4.2 Rinse • Rinse the parts thoroughly in water (<35°C/95°F). • Let the water flow through the parts.
3.4.3 Drying before steam autoclaving Before placing the expiratory cassette in a steam autoclave, make sure that no water remains inside the cassette. Refer to section Drying alternatives on page 13.
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SERVO-air Ventilator System, User's Manual
| O2 cell (maintenance) | 4 |
4 O2 cell (maintenance) 4.1 Preventive maintenance Regularly check the cell status in quick menu SYSTEM STATUS/O2 cell. The O2 cell should be exchanged if <10% estimated remaining capacity is indicated. Refer to the ventilator system User's manuals for O2 cell adjustment.
4.2 Preparations
• Remove the expiratory cassette. • Remove the front cover.
WARNING! The sealed unit of the O2 cell contains a caustic liquid which may cause severe burns to the skin and eyes. In case of contact, immediately wash the affected area continuously with water for at least 15 minutes and seek medical attention, especially if the eyes are affected.
Important: • Make sure the O2 cell is for the intended ventilator model.
• Remove the O2 cell. WARNING! The inspiratory channel cover shall be kept in place once maintenance has been performed. Otherwise the gas modules can be affected and deliver the wrong flow.
4.2.1 Remove the O2 cell
• Replacement of the O2 cell and filter and extended cleaning must only be performed by trained personnel.
• Unpack the O2 cell at least 15 minutes before replacement. Turn the ventilator system off using the on/off switch on the patient unit. • Disconnect the ventilator system from the power and gas supply.
SERVO-air Ventilator System, User's Manual
• Unfasten and turn out the locking latch. • Disconnect the O2 cell connector.
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| 4 | O2 cell (maintenance) |
• Remove the O2 cell.
• Fasten the locking latch.
4.3 Assembling 4.3.1 Insert the O2 cell
• Put the lower part of the front cover in position.
• Connect the O2 cell connector.
• Press the upper part of the front cover into position. • Perform a pre-use check.
• Put the O2 cell in position.
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SERVO-air Ventilator System, User's Manual
| Inspiratory channel (maintenance) | 5 |
5 Inspiratory channel (maintenance) 5.1 Preventive maintenance
• Press the latch and gently pull out the inspiratory channel.
Important: It is recommended that a regular cleaning and an extended cleaning of the inspiratory channel should be performed before carrying out preventive maintenance.
5.2 Preparations
• Disconnect the tube and remove the bacterial filter. Discard the filter to hazardous waste.
5.3 Disinfection • Remove the expiratory cassette. • Remove the front cover. • Remove the O2 cell. Refer to section Remove the O2 cell on page 15. 5.2.1 Remove inspiratory channel and tube
SERVO-air Ventilator System, User's Manual
5.3.1 Rinse before disinfection If rinsing before disinfection is not included in the washer disinfector program: • Rinse the parts thoroughly in water (<35°C/95°F). • Let the water flow through the parts. Important: Immediate rinsing in water (<35°C/95°F) can remove particles and reduces the risk of cross-contamination between patients.
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| 5 | Inspiratory channel (maintenance) |
5.3.2 Washer-disinfector
5.4 Assembling 5.4.1 Insert inspiratory channel and tube
• Place the inspiratory channel so that the water flows through it. • Clean the inspiratory channel and tube the same way as the expiratory cassette. • Refer to section Disinfection on page 11.
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• Put a new bacterial filter in position and connect the filter to the tube.
SERVO-air Ventilator System, User's Manual
| Inspiratory channel (maintenance) | 5 |
• Push the inspiratory channel until it clicks into locked position. • Re-insert the O2 cell. Refer to section Insert the O2 cell on page 16. • Mount the front cover. Refer to section Assembling on page 16. • Note on a log sheet that an extended cleaning of the inspiratory channel has been performed. • Insert the expiratory cassette. • Perform a pre-use check. Refer to the ventilator system User's Manual.
SERVO-air Ventilator System, User's Manual
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| 6 | Aerogen Pro nebulizer |
6 Aerogen Pro nebulizer 6.1 Preparation
6.3 Disinfection 6.3.1 Cleaning
Important: Do not use abrasive or sharp tools to clean the nebulizer unit.
Note: The Aerogen Solo nebulizer unit is intended for single patient use only, do not re-use, clean or sterilize. Cleaning should be done after each patient or according to hospital routines. Disconnect the nebulizer unit from the control cable, and remove the nebulizer unit, T piece and adapters from the patient circuit or mask.
6.2 Wiping and discarding
• Ensure there is no medication remaining in the nebulizer. • Disassemble the nebulizer unit and adapters into individual components. • Remove the filler cap from nebulizer unit. • Clean all parts with warm water and mild liquid detergent. • Rinse all parts in sterile water. • Shake excess water from parts and allow parts to air dry. • Assemble the nebulizer. Refer to the ventilator system User's Manual.
6.3.2 Washer-disinfector Two different washing cycles are validated for the Aerogen Pro nebulizer: • Wipe the control cable with a damp cloth. Do not autoclave. • Check for exposed wiring, damaged connectors, or other defects and replace if any are visible. Note: In case of more contaminated surfaces, use ethyl alcohol (70%).
• Liquid alkaline cleaner (diluted as per manufacturer instruction) and mains water. - Load the components in the washer-disinfector. - Pre-rinse the components for 3 minutes. - Clean the components with liquid alkaline cleaner at 55 °C (131 °F) for 10 minutes. - Rinse for 1 minute. - Rinse using thermal disinfection cycle at 93 °C (199.4 °F) for 10 minutes. • Mains water and without the use of a detergent. - Load the components in the washer-disinfector.
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SERVO-air Ventilator System, User's Manual
| Aerogen Pro nebulizer | 6 |
- Wash components for 10 minutes at 91 °C (195.8 °F). - Drain the machine for 40 seconds. - Rinse at 90 °C (194 °F) for 1 minute. - Drain the machine for 40 seconds. - Rinse at 90 °C (194 °F) for 1 minute. - Drain the machine for 40 seconds. - Dry at 90 °C (194 °F) for 15 minutes.
6.4 Steam autoclaving • Disassemble the nebulizer unit and adapters into individual components. • Remove the filler cap from the nebulizer unit. • Clean all parts with warm water and mild liquid detergent. Rinse thoroughly and air dry. • Check for cracks or damage and replace if any defects are visible.
6.3.3 Disinfectant • Immerse the parts in appropriate disinfecting agent. Refer to section Recommended intervals and disinfectants on page 24. Important: Follow the disinfectant manufacturer’s recommendations and instructions.
SERVO-air Ventilator System, User's Manual
• Place the disassembled components into appropriate sterilization wrapping. Note: Do not reassemble parts prior to steam autoclaving Only the Aerogen Pro nebulizer unit, T piece and neonate adapters can be autoclaved. Refer to section Recommended intervals and disinfectants on page 24.
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