Beurer PO 45 Pulse Oximeter

Introduction

This document provides instructions for the Beurer PO 45 Pulse Oximeter, a non-invasive device for spot-checking arterial oxygen saturation (SpO2) and pulse rate.

1. Included in Delivery

• 1x PO 45 pulse oximeter
• 2x 1.5 V AAA batteries
• 1x lanyard
• 1x belt bag
• 1x instructions for use

2. Intended Use

The Fingertip Pulse Oximeter PO 45 is a handheld non-invasive device intended for spot-checking of oxygen saturation of arterial hemoglobin (SpO2) and Pulse Rate of adult, adolescent, and child patients in hospitals, hospital-type facilities, and homecare.

3. Getting to Know Your Instrument

The Beurer PO 45 pulse oximeter measures arterial oxygen saturation (SpO2), heart rate (PRbpm), and perfusion index (PI). SpO2 indicates the percentage of hemoglobin in arterial blood saturated with oxygen, a key parameter for respiratory function. The device uses red and infrared light to determine this percentage and also measures pulse rate.

Key Components:

• 1. ? Red and Infrared-ray Emission Tube
• 2. ? Red and Infrared-ray Receipt Tube

Low oxygen saturation can indicate underlying illnesses like respiratory diseases, asthma, or heart failure. Symptoms may include shortness of breath, increased heart rate, and weakness. The device is suitable for at-risk patients, athletes, and individuals at high altitudes.

Features:

• Easy to use and portable
• Compact, lightweight design
• Two-colour OLED display showing SpO2, PRbpm, and PI
• Adjustable display brightness (1-10)
• 7 display formats
• Low battery indicator ?
• Automatic switch-off after 8 seconds if no signal is received

4. Signs and Symbols

The following symbols are used:

• ⚠️ WARNING: Warning instruction indicating a risk of injury or damage to health
• ❗ IMPORTANT: Safety note regarding potential for damage to the device/accessories
• ? Manufacturer
• ⚕️ Application part, type BF
• ? Note: Note on important information
• ♻️ Disposal: Do not dispose of batteries containing hazardous substances with household waste. Dispose of packaging in an environmentally friendly manner.
• ? Observe instructions for use
• ? Serial number
• ? Alarm suppression
• ? Storage: Permissible storage temperature and humidity
• ⚙️ Operating: Permissible operating temperature and humidity
• ?️ IP22: Device protected against foreign objects ≥12.5 mm and against falling drops of water

5. Warnings and Safety Notes

⚠️ WARNING: Non-observance of the following information may result in personal injury or material damage.

• Check all included parts.
• Regularly inspect the device for visible damage and battery charge. Do not use if in doubt; contact Beurer customer services.
• Do not use unrecommended accessories.
• Do not open or repair the device yourself; this voids the warranty. Contact Beurer customer services for repairs.
• Do NOT use the pulse oximeter:
  • If allergic to rubber products.
  • If the device or finger is damp.
  • On small children or babies.
  • During MRI or CT scans.
  • During patient transport outside a medical establishment.
  • During blood pressure measurement on the same arm.
  • On fingers with nail varnish, dirt, or plasters.
  • On fingers that do not fit easily (width > 20 mm, thickness > 15 mm).
  • On fingers with anatomical changes, oedemas, scars, or burns.
  • On fingers that are too small (width < 10 mm, thickness < 5 mm).
  • On unsteady patients (e.g., trembling).
  • Near flammable or explosive gas mixtures.
• Prolonged use may cause pain for people with circulatory disorders. Do not use for longer than 30 minutes on one finger.
• The device displays instantaneous measurements and is not for continuous monitoring.
• It lacks an alarm function and is not suitable for evaluating medical results.
• Do not self-diagnose or self-medicate without consulting a doctor.
• Do not look directly into the housing during measurement; the light is harmful to eyes.
• Keep portable RF communication equipment at least 30 cm (12 inches) away.
• The device is calibrated for functional oxygen saturation.
• This device is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience/knowledge, unless supervised or instructed by a responsible person. Supervise children to prevent them from playing with the device.
• Pulse wave and bar displays are for signal variation visualization, not reliable pulse diagnostics.

❗ Incorrect measurements may occur if:

• Nail polish, artificial nails, or cosmetics are on the finger.
• Fingernails are too long, preventing the fingertip from covering sensor elements.
• The person moves during measurement. Keep hand, finger, and body steady.
• The user has cardiac arrhythmia (measurements may be incorrect or impossible).
• Electronic surgical devices or defibrillators are used.
• Carbon monoxide poisoning is present (device shows falsely high readings).
• Strong light sources (fluorescent lamps, direct sunlight) are nearby.
• The user has low blood pressure, jaundice, takes vascular contraction medication, or has low blood volume.
• Medical dyes were administered, or abnormal hemoglobin levels exist (e.g., carbon monoxide/methemoglobin poisoning).
• Patients have arterial catheters, hypotension, severe vascular constriction, anemia, or hypothermia.
• The device is exposed to dust, shocks, moisture, extreme temperatures, or explosive materials.

6. Unit Description

Device Components:

• Finger opening
• Lanyard holder
• Function button
• Display

Display Elements:

1. Oxygen saturation (value in percent)
2. Inaccurate measurement indicator ❓
3. Pulse rate (value in beats per minute)
4. Pulse bar
5. Perfusion index (value in percent)
6. Pulse wave

The display offers 7 different formats.

7. Initial Use

7.1 Inserting the Batteries

1. Slide open the battery compartment lid.
2. Insert the two supplied AAA batteries, observing correct polarity.
3. Close the battery compartment cover.

7.2 Attaching the Lanyard

1. Insert the narrow end of the lanyard through the holder.
2. Draw the other end through the loop and tighten.

8. Operation

1. Insert a finger into the finger opening and hold it steady.
2. Press the function button. The device starts measuring. Do not move during measurement.
3. Measurement values will appear on the screen after a few seconds.

Notes:

• A ❓ symbol indicates an unstable measurement signal; readings are invalid.
• The device automatically switches off after approx. 8 seconds when the finger is removed.
• Briefly press the function button to select a display format.
• Hold the function button longer to adjust display brightness.

9. Evaluating Measurement Results

⚠️ WARNING: The following table is NOT applicable for individuals with pre-existing conditions (e.g., asthma, heart failure) or at altitudes above 1500 meters. Consult a doctor for evaluation if you have pre-existing conditions.

SpO₂ (Oxygen Saturation) Evaluation:

Source: Adapted from Windisch W et al. S2k-Leitlinie...

Perfusion Index (PI) Evaluation:

The PI can range from 0.3% to 20% and varies by patient, location, and health state. A very low PI can impair measurement.

Decline in Oxygen Saturation Depending on Altitude:

? Note: This table applies to healthy individuals. People with pre-existing conditions may experience symptoms at lower altitudes.

Source: Hackett PH, Roach RC: High-Altitude Medicine.

10. Maintenance and Cleaning

❗ IMPORTANT: Do not use high pressure or ethylene oxide sterilization. Do not immerse the device in water.

• Clean the housing and interior rubber surface with a soft cloth dampened with medical alcohol after each use.
• Replace batteries when the low battery indicator ? appears.
• Remove batteries if the device will not be used for over a month to prevent leakage.

11. Storage

❗ IMPORTANT: Store in a dry place (relative humidity ≤ 93%). Avoid high humidity. Store between -25 °C and 70 °C.

12. Disposal

Dispose of the device according to the WEEE Directive (Waste Electrical and Electronic Equipment). Contact local authorities for disposal information. Dispose of used batteries through designated collection points or retailers. Note: Batteries may contain hazardous substances (Pb, Cd, Hg).

13. Troubleshooting

14. Technical Data

The serial number is located on the device or in the battery compartment.

Electromagnetic Compatibility (EMC) Notes:

⚠️ WARNING: The device is suitable for domestic environments but may be affected by electromagnetic disturbances. Avoid using it next to other devices or stacked. Use of non-specified accessories may increase emissions or reduce immunity. Keep portable RF communication devices at least 30 cm away.

The device conforms to European standards EN60601-1 and EN60601-1-2, and EU Directive 93/42/EEC for medical devices.

15. Warranty and Service

Beurer GmbH provides a 5-year worldwide warranty for this product, commencing from the date of purchase. This warranty applies to consumer purchases for personal domestic use and is subject to German law. It covers defects in functionality and completeness. Repairs or replacements do not extend the warranty period.

Warranty Exclusions:

• Normal wear and tear.
• Consumable accessories (batteries, etc.).
• Improper use, cleaning, storage, or maintenance.
• Unauthorized opening, repair, or modification.
• Damage during transport.
• Products purchased as seconds or used goods.
• Consequential damages.

For warranty claims, contact Beurer customer service or an authorized partner with proof of purchase.