Little Doctor MD300C23 User manual

INSTRUCTION MANUAL
Fingertip Pulse Oximeter
model MD300C23
GENERAL DESCRIPTION
Oxygen Saturation is a percentage of Oxyhemoglobin (HbO2) capacity,
compounded with oxygen, by all combinative hemoglobin (Hb) capacity in
blood. In other words, it is consistency of Oxyhemoglobin in blood. It is a very
important parameter for the Respiratory circulation System.
Many respiratory diseases can result in oxygen saturation being lowered in
humanblood.Additionally,thefollowingfactorscanreduceoxygensaturation:
Automatic regulation of organ dysfunction caused by Anesthesia, Intensive
Postoperative Trauma, injuries caused by some medical examinations.
That situation might result in light-headedness, asthenia, and vomiting.
Therefore, it is very important to know the oxygen saturation of a patient so
that doctors can find problems in a timely manner.
PARTS LIST
fig. 1
Complete set: Main Unit – 1 pcs.,
Instruction Manual with Warranty
Card – 1 pcs., Hang Lace – 1 pcs.,
batteries – 2 pcs. (fig. 1)
MEASUREMENT PRINCIPLE
Principle of the Oximeter is as follows: A mathematical formula is established
making use of Lambert Beer Law according to Spectrum Absorption
Characteristics of Reductive hemoglobin (RHb) and Oxyhemoglobin (HbO2)
in glow and near-infrared zones.
Operation principle of the instrument is Photoelectric Oxyhemoglobin
Inspection Technology is adopted in accordance with Capacity Pulse Scanning
and Recording Technology, so that two beams of different wavelength of
lights (660nm glow and 940nm 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 OLED display through process in electronic circuits and microprocessor
shown on OLED display through electronic circuits and a microprocessor.
Diagram of Operation Principle
1. 1.Red and Infrared-ray Receipt Tube.
2. 1.Red and Infrared-ray Emission Tube. (fig.2)
PRECAUTIONS FOR USE
1. Do not use the pulse oximeter in an MRI or CT environment.
2. Do not use the pulse oximeter in situations where alarms are required.
3. Explosion hazard: Do not use the pulse oximeter in an explosive
atmosphere.
4. The pulse oximeter is intended only as an adjunct in patient assessment.
It must be used in conjunction with other methods of assessing clinical signs
and symptoms.
5. Check the pulse oximeter sensor application site frequently to determine
the positioning of the sensor and circulation and skin sensitivity of the patient.
6. Do not stretch the adhesive tape while applying the pulse oximeter
sensor. This may cause inaccurate readings or skin blisters.
7. Before use, carefully read the Instruction manual.
8. The pulse oximeter has no SpO2 alarms; it is not for continuous
monitoring, as indicated by the symbol.
9. Prolonged use or the patient’s condition may require changing the sensor
site periodically. Change sensor site and check skin integrity, circulatory
status, and correct alignment at least every 4 hours.
10. Inaccurate measurements may be caused by:
- autoclaving, ethylene oxide sterilizing, or immersing the sensors in
liquid may cause inaccurate readings.
- significant levels of dysfunctional hemoglobins (such as carbonxy-
hemoglobin or methemoglobin)
- intravascular dyes such as indocyanine green or methylene blue
- high ambient light. Shield the sensor area (with a surgical towel, or
direct sunlight, for example) if necessary.
- excessive patient movement
- high-frequency electrosurgical interference
- venous pulsations
- placement of a sensor on an extremity with a blood pressure cuff,
arterial catheter, or intravascular line.
- hypotension, severe vasoconstriction, severe anemia, or hypothermia
- fingernail polish or false fingernails may cause inaccurate SpO2
readings.
- the patient is in cardiac arrest or is in shock.
11. The pulse oximeter can be used before or after sports. Operation in sport
procedure is not recommended)
12. Please follow the law of the local government to deal with used battery.
1
2
BATTERY INSTALLATION
1. Shift the
bottom
panel and
then open it
(fig.3a).
2.
Put the two
AAA batteries
into battery cassette in correct polarities (fig. 3b).
2. Close the bottom panel (fig. 3c).
WARNING!
Replace batteries when low power indncator “ ” is lit or if after pressing
Power button there is no indication on display.
Please remove the battery if the Oximeter will not be used for a long time.
Do not use re-chargable batteries.
HOW TO USE
WARNING! Do not tremble the hand with oximeter during measuremrnt
1. Open the clamp (fig. 4)
2. Plug one of fingers into rubber
hole of the oximeter (it is best to
plug the finger thoroughly) before
releasing the clamp.
3. Press the button once on front
panel.
Display modes.
After turning on the oximeter, each time you press the power switch, the
oximeter will switch to another display mode, there are 6 display modes
shown as follows:
1
SpO 2%
PR bpm
95 84
2
SpO 2%
PR bpm
97 74
3
SpO 2%
PR bpm
98
77
4
SpO 2%
PR bpm
98
77
5
SpO 2%
PR bpm
97 77
6
SpO 2%
PR bpm
97 74
4. Read correspondent data from display screen:
SpO 2%
PR bpm
97 74
Low power indicator
Pulse Wave
SpO 2%
PR bpm
95
84
PR signal
intensity Bar
graph
PR
SpO 2
Brightness adjustment
When you press the power switch for a long time (more than one second),
the brightness of the oximeter will be changed by degrees, there are 10 levels
on brightness; the default level is level four.
HANG LACE INSTALLATION
1. Thread thinner end of the hang lace through
the hanging hole (fig. 5).
2. Thread thicker and of the lace through the
threaded end before pulling it tightly.
MAINTENANCE AND STORAGE
Replace the batteries timely when low voltage lamp is lighted1.
Clean surface of the fingertip oximeter before it is used in diagnosis for2.
patients
Remove the batteries inside the battery cassette if the Oximeter will not3.
be operated for a long time.
It is best to preserve the product in a place where ambient temperatures4.
-20-55r and humidity is <93%.
It is recommended that the product should be kept in a dry environment5.
anytime. A wet ambient might affect its lifetime and even might damage
the product.
Please follow the law of the local govern ment to deal with used battery6.
SPECIFICATION
Model MD300C23
Display OLED display
SpO2
measurement range
accuracy
70% - 100%
±2%
Pulse Rate
measurement range
accuracy
30 - 250 bpm
30 - 99 bpm - ±2 bpm;
100 - 250 bpm - ±2%
Measurement wavelengths
red
infrared
660 nm
905 nm
fig. 2
fig. 3a fig. 3b fig. 3c
fig. 5
fig. 4

Power source 2 x 1,5V AAA (LR03)
Battery set operating period > 30 hrs.
Max. power consumption 0.075 W
Applicable finger circumference 20-75 mm
Operating conditions :
Temperature
Relative humidity
5ºС ~ 40ºС
<80%
Storage and transportation environment :
Temperature
Relative humidity
-20 ºС ~ 55ºС
< 93%
Net Weight (without batteries) 31g
External dimension 58 (L) х 30 (W) х 34 (H) mm.
Date of manufacturing Manufacturing Date printed on sticker
Country of Origin PRC
Symbol Definitions The equipment type is BF
Read User manual before use
Not for continuous monitoring
No critical SpO2 alarm
CALIBRATING THE PULSE OXIMETER
The functional tester cannot be used to assess the accuracy of the oximeter.
Index 2 that made by Bioteck company is a function tester. Set Tech to 1, R
curve to 2; then user can use this particular calibration curve to measure the
oximeter.
The test methods used to establish the SpO2 accuracy is clinical testing. The
oximeter used to measure the arterial haemoglobin oxygen saturation levels
and these levels are to be compared to the levels determined from arterial
blood sampling with a CO-oximeter.
DECLARATION
This device complies with EMC (IEC 60601-1-2:2001, CISPR 11/A2:2002
(Group 1, Class B), IEC 61000-4-2:2001, IEC 61000-4-3:2002, IEC 61000-4-8:2001).
The materials which user can come into contact have no toxicity and no
action on tissues, complying with ISO10993-1,-5,-10.
Guidance and manufacture’s declaration – electromagnetic
emissions- for all EQUIPMENT and SYSTEMS
Guidance and manufacture’s declaration – electromagnetic emission.
The Pulse Oximeter is intended for use in the electromagnetic environment
specified below. The customer of the user of the Pulse Oximeter should
assure that it is used in such and environment.
Emission test Compliance Electromagnetic environment –
guidance
RF emissions
CISPR 11
Group 1 The Pulse Oximeter uses RF energy
only for its internal function. Therefore,
its RF emissions are very low and are
not likely to cause any interference in
nearby electronic equipment.
RF emission
CISPR 11
Class B The Pulse Oximeter is suitable for
use in all establishments, including
domestic establishments and those
directly connected to the public low-
voltage power supply network that
supplies buildings used for domestic
purposes.
GUARANTEE
We grant a 1 year guarantee on the product commencing on the date
purchase. The guarantee only comes info force if the data of purchase is
confirmed by the dealer’s stamp and signature on Guarantee Card.
This warranty does not extend to, and will be void in respect of any
products which have been subjected to misuse, neglect, fire, improper
modification, use in violation of the instructions furnished by us repaired
by an unauthorized third party.
Service Centers:
RUSSIA
Moscow ([phone]
www.LittleDoctor.ru.
For more information please call ([phone]
POLAND
Tel. [phone]
www.LittleDoctor.pl
TROUBLESHOUTING
Problems Possible reason Solution
SpO2 or
PR can not
be shown
normally
1. Finger is not plugged
correctly
2. Patient’s Oxyhemoglobin
value is too low to be
measured
1. Retry by plugging the finger
2. Measure other patients to
make sure that no problem
exists in the product. Go to a
hospital in a timely manner for
an exact diagnosis.
SpO2 or PR
is shown
unstably
1. Finger might not be
plugged deep enough
2. Finger is trembling
or patient’s body is in
movement status
1. Retry by plugging the finger
2. Try not to move
The
Oximeter
can not be
powered on
1. Power of batteries might
be inadequate or not be
there at all
2. Batteries might be
installed incorrectly
3. The Oximeter might be
damaged
1. Please replace batteries
2. Please reinstall the batteries
3. Please contact with local
customer service centre
Indication
lamps are
suddenly
off
1. The product is
automatically powered off
when no signal is detected
longer than 8 seconds
2. Power is too low.
1. Normal
2. Replace the batteries
“Error3” or
“Error4”
Displayed
on screen
1 .Low power
2. Receiving tube being
shielded or damaged
together with broken
connector.
3. Mechanical Misplace for
receive-emission tube
4. Amp circuit is malfunction.
1. Change new battery
2. Please contact with local
customer service center
3. Please contact with local
customer service center
4 Please contact with local
customer service center
“Error7”
displayed
on screen
1. Low power
2. Emission tube damaged.
3. Current control circuit is
malfunction.
1 Change battery
2 Contact with local customer
service center
3 Contact with local customer
service center
E416/1904/2
Name and address of retailer
Date of Purchase
Retailer sign
I confirm that surface appearance
and complete set of device is OK:
Retailer stamp
Purchaser sign
GUARANTEE CARD
®Registered trade marks of Little Doctor International (S) Pte. Ltd.
© Little Doctor International (S) Pte. Ltd., 2019
LITTLE DOCTOR INTERNATIONAL (S) PTE. LTD.
Yishun Central P.O. Box 9293 Singapore 917699,
Fax: [phone], E-mail: [email protected]om
EC-Rep: Shanghai International Holding Gorp. GmbH (Europe).
Eiffestrasse 80, 20537 Hamburg, Germany.
Beijing Choice Electronic Technology Co., Ltd.,
Room 4104, №.A12 Yuquan Road, Haidian District,
100143 Beijing, PRC
Serial №
MD300C23
MODEL