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Maintenance

5.1 CHARGING THE BATTERY

The device can only be used on battery power. Therefore, the battery must be charged regularly. One battery charge is sufficient for approximately 2500 measurements or 19 hours of continuous use.

To charge the battery, place modules on the MESI LARGE CHARGING PLATE (CS4SYS). During the charging process, the light on the module will flash orange. Only when the device is completely charged will it start flashing green. For more information, see chapter 4.8 – Multifunctional buttons.

If the capacity of the battery is significantly decreased after a period of intensive use, the battery is most likely spent and should be replaced. As the device does not contain any parts that can be replaced by a user, contact your local distributor or the manufacturer for battery replacement.

5.2. CLEANING AND DISINFECTION

⚠️Before cleaning, disconnect from the mains. Due to constant standby mode of the device, do not clean the terminals as this may cause elec trical shock.

⚠️Only perform routine cleaning and maintenance procedures specifically described in these Instructions for Use

⚠️Read and follow cleaning instructions carefully.

CLEANING – MESI THERMOMETER UNIT

Do not use aggressive cleaning agents, volatile liquids or excessive force when cleaning the device. Do not dip the device or accessories in liquids or cleaning agents.

1. Before cleaning, remove the MESI THERMO UNIT from the charging station and disconnect the sensor from the MESI THERMO UNIT.

2. Use a soft lint-free cloth dampened with a proper cleaning agent to clean and disinfect the exterior and interior of both the IR and contact probes.

3. Wipe off all residues of the cleaning solution with a dry cloth.

4. Dry the equipment before next use.

Recommended cleaning agents:

  • Hydrogen peroxide (3%)

  • Ethanol (70%)

  • Isopropanol (70%)

  • Mild soap (diluted)

  • Sodium hypochlorite bleach (diluted)

Not approved cleaning agents:

  • Organic solvents

  • Ammonia-based detergents

  • Abrasive cleaning agents

  • 100% alcohol, acetone, chlorine, etc.

CLEANING – MESI TUBELESS CUFF UNIT

  1. Before cleaning remove the MESI TUBELESS CUFF UNIT from the charging station and disconnect the cuff from the MESI TUBELESS CUFF UNIT

  2. Use a soft lint-free cloth dampened with a proper cleaning agent to clean and disinfect the exterior/interior of the unit/.

  3. With a dry cloth wipe off all residues of the cleaning solution

  4. Dry the equipment before next use.

Recommended cleaning agents:

  • Hydrogen peroxide (3%)

  • Ethanol (70%)

  • Isopropanol (70%)

  • Mild soap (diluted)

  • Ammonia (diluted)

  • Sodium hypochlorite bleach (diluted)

DISINFECTION – MESI TUBELESS CUFF UNIT:

Use commercially available disinfectants intended for the professional healthcare environment. Refer to the instruction for use of the producer.

Recommended cleaning agents:

  • Isopropyl alcohol 70%

  • Propanol (70–80%)

  • Ethyl hexanal

  • Aldehyde (2–4%)

  • Ethanol (70–80%)

Not approved cleaning agents:

  • Organic solvents

  • Ammonia-based detergents

  • Abrasive cleaning agents

  • 100% alcohol, acetone, chlorine, etc.

CLEANING – CUFF:

  • Clean the cuff’s surface by wiping a damp cloth with mild soap water.

  • Do not wash the cuffs or immerse it in water. Also do not use petrol, thinners or similar solvents to clean the cuffs.

⚠️ Do not sterilise cuffs. Do not use bleach.

NOTE: Do not wash the cuffs in a washing machine or iron them.

NOTE: The device must be calibrated in the event of mechanical stress!

DISINFECTION – CUFF:

  • Can be disinfected with medical-grade alcohol 70%.

  • After disinfection, the cuff cover should be left air dry.

CLEANING – REUSABLE PULSE OXIMETRY SENSORS

The pulse oximeter sensor must be carefully cleaned and disinfected after every use and before use with a different patient. The sensor can be reused on the same patient, for the patient’s entire stay. If the sensor is covered with dust and dirt, it can affect the performance of the device. Observe the cleaning instructions in the Instructions for Use that came with the sensor.

⚠️ Do not use aggressive cleaning agents, volatile liquids or excessive force when cleaning the device. Don’t dip the sensor in liquids or cleaning agents.

CLEANING – MESI PULSE OXIMETER UNIT

  1. Before cleaning remove the MESI PULSE OXIMETER UNIT from the charging station and disconnect the sensor from the MESI PULSE OXIMETER UNIT.

  2. Use a soft lint-free cloth dampened with a proper cleaning agent to clean and disinfect the exterior and interior of the unit/sensor.

  3. With a dry cloth wipe off all residues of the cleaning solution.

  4. Dry the equipment before next use.

Recommended cleaning agents:

  • Hydrogen peroxide (3%)

  • Ethanol (70%)

  • Isopropanol (70%)

  • Mild soap (diluted)

  • Ammonia (diluted)

  • Sodium hypochlorite bleach (diluted)

Not approved cleaning agents:

  • Organic solvents

  • Ammonia-based detergent

  • Abrasive cleaning agents

  • 100% alcohol, acetone, chlorine etc.

5.3 PRODUCT LIFE AND STORAGE

If correctly used and maintained, the device will have a minimum service life of 5 years. It is possible to store the device in suitable conditions for a maximum of 5 years. While in storage, the battery needs to be recharged once a month to avoid accidental over-dis charge. When using the device after storage, we recommend a thorough maintenance check.

5.3.1 TRANSPORT & STORAGE CONDITIONS

TRANSPORT & STORAGE CONDITIONS
Temperature-25° to 70°C
Relative humidity15 to 90% (no condensation)
Atmospheric pressure500 to 1060 hPa (mbar)

The device should be inspected by a qualified service engineer at least every 12 months for the following safety checks:

  • Any mechanical or functional damage on the device and accessories

  • Performance of device in accordance with the Instructions for Use

  • Legibility of warning label

  • Battery cycle count