microlife OXY 300 Fingertip Oximeter User Manual

: June 21, 2024
: microlife

microfilm OXY 300 Fingertip Oximeter

microlife-OXY-300-Fingertip-Oximeter-PRODUCT

Specifications

Brand: Microlife
Model: OXY 300
Type: Fingertip Oximeter
Manufacturer: Beijing Choice Electronic Technology Co., Ltd.
Operating Conditions: Protected against dripping water, extreme temperatures
Display Modes: Oxygen saturation, Pulse rate, Pulse wave, Pulse bar
Power Source: Batteries

Product Usage Instructions

Important Safety Instructions:
- Read the user manual before using the device.
- Keep the device dry and protect it from water and moisture.
- Avoid extreme temperatures and ensure no impact or dropping of the device.
- Do not allow unsupervised use by children due to small parts that can be swallowed.
- Beware of the risk of strangulation if cables or tubes are attached.
General Description:

The Microlife OXY 300 is a portable fingertip oximeter designed for spot- checking oxygen saturation and pulse rate in adults and pediatric patients. It utilizes photoelectric oxyhemoglobin inspection technology for accurate readings.

Operation Principle:

The device uses two beams of different light wavelengths to analyze hemoglobin levels in arterial blood. Oxygen saturation indicates the percentage of oxygen-loaded hemoglobin, a crucial parameter for respiratory health.

Using the Device:
Press the ON/OFF button to power the oximeter.
Insert batteries following the indicated polarity.
To check oxygen saturation, place the device on your fingertip.
Wait for the readings to stabilize and view the SpO2 percentage and pulse rate.
Monitor the low battery indicator for battery replacement.
Cleaning and Maintenance
- Clean the device with a damp cloth and mild detergent, avoiding direct contact with liquids.
- Do not immerse the oximeter in water or use harsh chemicals for cleaning.
- Store the oximeter in a dry and dust-free environment when not in use.

Frequently Asked Questions

Q: How often should I replace the batteries?

A: Replace the batteries when the low battery indicator is displayed or when the device fails to power on.

Q: Can this oximeter be used on pediatric patients?

A: Yes, the Microlife OXY 300 is suitable for spot-checking oxygen saturation and pulse rate in both adults and pediatric patients.

Q: Is it safe to clean the oximeter with alcohol-based solutions?

A: It is recommended to clean the oximeter with a damp cloth and mild detergent. Avoid using harsh chemicals or immersing the device in liquids.

OVERVIEW

microlife-OXY-300-Fingertip-Oximeter-FIG-1

ON/OFF button
Oxygen saturation (value as a percentage)
Pulse rate (value in beats per minute)
Pulse wave (plethysmographic wave)
Pulse bar
Low battery indicator
Inserting the batteries
Attaching the lanyard
AT Display modes
AT Operation principle

Explanation of symbols

microlife-OXY-300-Fingertip-Oximeter-FIG-2

Dear Customer,

This Microlife fingertip pulse oximeter is a portable noninvasive device intended for spot-checking the oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adults and pediatric patients.
It is suitable for private use (at home, or on the go) as well as for use in the medical sector (hospitals, hospital-type facilities). It has been clinically proven to be of high precision during repeatability.
If you have any questions, or problems or want to order spare parts please contact your local Microlife-Customer Service.
Your dealer or pharmacy will be able to give you the address of the Microlife dealer in your country. Alternatively, visit the internet at www.microlife.com where you will find a wealth of invaluable information on our products.
Retain instructions in a safe place for future reference.
Stay healthy – Microlife Corporation!

Important Safety Instructions

Follow instructions for use. This document provides important product operation and safety information regarding this device. Please read this document thoroughly before using the device and keep it for future reference.
This device may only be used for the purposes described in these instructions. The manufacturer cannot be held liable for damage caused by incorrect application.
Never immerse this device in water or other liquids. For cleaning please follow the instructions in the Cleaning and disinfecting» section.
Do not use this device if you think it is damaged or notice anything unusual.
Never open this device.
This device comprises sensitive components and must be treated with caution. Observe the storage and operating conditions described in the «Technical Specifications » section.

Protect it from:

water and moisture
extreme temperatures
impact and dropping
contamination and dust
direct sunlight
heat and cold
The function of this device may be compromised when used close to strong electromagnetic fields such as mobile phones or radio installations and we recommend a distance of at least 1 m (according to 60601-1- 2 Table 5).
In cases where you suspect this to be unavoidable, please verify if the device is working properly before use.
Do not use the device in an MRI or CT environment.
This device is not intended for continuous monitoring.
This device does not have an alarm function and is therefore not suitable for evaluating medical results. Do not use this device in situations where alarms are required.
Do not sterilize this device using autoclaving or ethylene oxide sterilizing. This device is not intended for sterilization.
If the device is not going to be used for a prolonged period the batteries should be removed.
Ensure that children do not use this device unsupervised; some parts are small enough to be swallowed. Be aware of the risk of strangulation in case this device is supplied with cables or tubes.
Use of this device is not intended as a substitute for a consultation with your doctor.

General Description

Oxygen saturation indicates the percentage of hemoglobin in arterial blood that is loaded with oxygen. This is a very important parameter for the respiratory circulation system.
Many respiratory diseases can result in lower oxygen saturation within human blood.
The following factors can reduce oxygen saturation: Automatic regulation of organ dysfunction caused by anesthesia, intensive postoperative trauma, and injuries caused by some medical examinations.
These situations may result in light-headedness, asthenia, and vomiting. Therefore, it is very important to know the oxygen saturation of a patient so that doctors can detect problems promptly.

Measurement Principles

Principle of this fingertip pulse oximeter: A mathematical formula is established making use of Lambert-Beer Law according to spectrum absorption characteristics of deoxygenated hemoglobin (Hb) and oxyhemoglobin (HbO2) in red and near-infrared zones.
Operation principle of this device: Photoelectric oxyhemoglobin inspection technology is adopted per capacity pulse scanning and recording technology so that two beams of different wavelengths of light (660 nm red and 905 nm near-infrared light) can be focused onto a human nail tip through a clamping finger-type sensor. A measured signal obtained by a photosensitive element will be shown on the display through a process in electronic circuits and microprocessors.

Diagram of Operation Principle AT:

Red and infrared-ray emission tube.
Red and infrared-ray receipt tube.

Directions for Use

Insert the batteries as described in the «Inserting the batteries» section.
Insert one finger (nail side up; index or middle finger is recommended) into the finger opening of the device. Be sure to fully insert the finger so that the sensors are completely covered by the finger.
Release the device allowing it to clamp down on the finger.
Press the ON/OFF button 1 to turn the device on.
Do not shake your finger during the test. It is recom-mended that you do not move your body whilst taking a reading.
Your measurement values will appear on the screen after a few seconds.
Remove your finger from the device. The display will indicate «Finger Out».
The device will automatically switch off after approx. 8 seconds after the finger is removed from the device.
The height of bar graph 5 is an indication of the pulse and signal strength. The bar should be greater than 30 % for a proper reading.
The device must be able to measure the pulse properly to obtain an accurate SpO2 measurement.
Verify that nothing is hindering the pulse measurement before relying on the SpO2 measurement.
The maximum application time at a single site should be less than 30 minutes, to ensure correct sensor alignment and skin integrity.

Inaccurate measurements may occur if:

The patient suffers from significant levels of dysfunctional hemoglobin (such as carboxyhemoglobin or methemoglobin).
Intravascular dyes such as indocyanine green or methylene blue have been injected into the patient.
Used in the presence of high ambient light (e.g. direct sunlight). Shield the sensor area with a surgical towel if necessary.
There is excessive patient movement.
The patient experiences venous pulsations.
The patient has hypotension, severe vasoconstriction, severe anemia, or hypothermia.
The patient is in cardiac arrest or is in shock.
Fingernail polish or false fingernails are applied.

Inserting the batteries

After you have unpacked your device, first insert the batteries. The battery compartment is on the bottom of the device. Remove the battery cover by sliding it in the direction shown.
Insert the batteries (2 x 1.5 V, size AAA), thereby observing the indicated polarity.
Replace the batteries when the low power indicator 6 appears on the display.
Always replace both batteries at the same time

Adjusting Display Mode and Brightness

Display Mode

When the device is switched on, shortly press the ON/OFF button 1 to switch to another display mode to select your desired display mode 9. There are 6 different display modes. The default setting is mode 1.

Brightness

Press and hold the ON/OFF button 1 for longer than one second to adjust the brightness of the device. The display will show «Br 1-10». There are 10 levels of brightness. The default setting is level 4.

Using the Lanyard

Thread the thinner end of the lanyard through the hanging hole at the rear end of the device.
Thread the thicker end of the lanyard through the threaded end before pulling it tightly.

Malfunctions and Actions to Take

Description	Symptoms/ Possible Causes	Solutions
SpO2 or pulse rate does not display normally.	1. The finger is not inserted

correctly.

2. Patient SpO2

value is too low to be measured.

3. There is excessive illumination.

| 1. Retry inserting the finger.

2. & 3.

Measure more times. If you determine the product is working correctly, consult your doctor.

SpO2 or pulse rate is shown as unstable.| 1. The finger might not be inserted deep enough.

2. Excessive patient movement.

| 1. Retry inserting the finger.

2. Sit calmly and retry.

Description	Symptoms/ Possible Causes	Solutions
The device cannot be powered on.	1. No batteries or low battery power.

2. Batteries are not installed correctly.

3. The device may be damaged.

| 1. Replace the batteries.

2. Remove and reinstall the batteries.

3. Contact your local Microlife- Customer Service.

The display suddenly switches off.| 1. The device is automatically powered off when no signal is detected after 8 seconds.

2. The battery power is too low to operate.

| 1. Normal.

2. Replace the batteries.

«Error 3»| The red emission LED is damaged.| Check the red emission LED.
Description| Symptoms/ Possible Causes| Solutions
---|---|---
«Error 4»| The infrared emission LED is damaged.| Check the infrared emission LED.
«Error 6»| The screen has failed.| Contact your local Microlife- Customer Service.
«Error 7»| The emission LED or reception diode is damaged.| Contact your local Microlife- Customer Service.

Cleaning and disinfecting

Use an alcohol swab or cotton tissue moistened with alcohol (70% Isopropyl) to clean the silicone that touches the finger inside of the device.
Also, clean the finger being tested using alcohol before and after each test. Allow the device to dry thoroughly before use.

Guarantee

This device is covered by a 2-year guarantee from the date of purchase. During this guarantee period, at our discretion,
Microlife will repair or replace the defective product free of charge.
Opening or altering the device invalidates the guarantee.

The following items are excluded from the guarantee:

Transport costs and risks of transport.
Damage caused by incorrect application or noncompliance with the instructions for use.
Damage caused by leaking batteries.
Damage caused by accident or misuse.
Packaging/storage material and instructions for use.
Regular checks and maintenance (calibration).
Accessories and wearing parts: Battery. Should guarantee service be required, please contact the dealer from where the product was purchased or your local Microlife service.
You may contact your local Microlife service through our website: www.microlife.com/support
Compensation is limited to the value of the product. The guarantee will be granted if the complete product is returned with the original invoice.
Repair or replacement within the guarantee does not prolong or renew the guarantee period.
The legal claims and rights of consumers are not limited by this guarantee.

Technical Specifications

Type: Fingertip Pulse Oximeter OXY 300
Display: OLED display

SpO2:

Measurement range: 70 ~ 100 %
Accuracy: 70 ~ 100 %: ±2 %
Resolution: 1 %

Pulse rate:

Measurement range: 30 ~ 250 bpm
Accuracy: 30 ~ 99 bpm: ±2 bpm 100 ~ 250 bpm: ±2 bpm
Resolution: 1 bpm
Operating conditions: 5 – 40 °C / 41 – 104 °F ≤ 80 % relative maximum humidity
Storage conditions: -20 – +55°C / -4 – +131 °F ≤ 93 % relative maximum humidity
Automatic switch-off: Automatically shut down in 8 seconds, when no or low signal is detected.
Battery: 2 x 1.5 V alkaline batteries; size AAA
Battery lifetime: approx. 30 hours (using new batteries)
Weight: 56 g (including batteries)
Dimensions: 58 x 32 x 34 mm
IP Class: IPX1
Reference to standards: EN ISO10993-1/-5/-10; IEC 60601-1; EN 60601- 1-2; EN ISO9919; EN 62304; EN 60601-1-6; CE0123
Expected service life: 5 years (when used 15 times/day; 20 minutes for each measurement)
Technical alterations reserved.