Little Doctor LD2 User manual

Digital Blood Pressure Monitor
Instruction Manual
Ciśnieniomierz elektroniczny
półautomatyczny LD
do pomiaru ciśnienia tętniczego krwi i pulsu
Instrukcja Obsługi
LD2
ENGPOL

2
ENG
TABLE OF CONTENTS
PARTS AND COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
INDICATIONS FOR USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
OPERATION PRINCIPLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
APPLIED NEW TECHNOLOGIES LD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
RECOMMENDATIONS ON CORRECT MEASUREMENTS . . . . . . . . . . . . . . . . .5
POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
CORRECT POSITION DURING MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . .6
CUFF PREPARATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
MEASUREMENT PROCEDURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
MEMORY FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
MEMORY CLEARING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
INFORMATION ABOUT ERRORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
CARE, STORAGE, REPAIR AND DISPOSAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
TROUBLESHOOTING TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
TECHNICAL SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
CERTIFICATION AND STATE REGISTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3
ENG
PARTS AND COMPONENTS
1. Electronic Unit.
2. Arm cuff and pump jack.
3. Air
tube.
4. T-piece for connecting the bulb and cuff to the electronic Device.
5. Bulb.
6. Check valve.
7. Pressure release valve.
8. LCD.
9. Button M (memory).
10. O/I (Power ON/OFF).
11. Arm cuff CUFF-LDA.
12. Storage Case.
13. Power elements.
14. Warranty card.
15. Instruction Manual.

4
ENG
GENERAL INFORMATION
This Instruction Manual is designed to assist the user with safe and effective
operation of the semiautomatic digital Device for measurement of blood pres-
sure and heartbeat rate LD,
( modification LD2 ( hereinafter – the “Device” ). Use
this Device according to the rules described in this Manual. Operate the Device
only as intended. Do not use the Device for any other purposes. Read and under-
stand the whole Instruction Manual, in particular“Recommendations on Correct
Measurement”
.
INDICATIONS FOR USE
Use this Device to measure your systolic and diastolic blood pressure and
heartbeat rate in patients aged from 15. This Device is recommended for
use by persons with unstable blood pressure or known arterial hypertension
at home as an addition to medical surveillance. The cuff is designed for the
upper arm with the circumference approximately from 25 to 36 cm.
OPERATION PRINCIPLE
This Device uses the oscillometric method of blood pressure with Fuzzy
Algorithm and pulse rate measurement. Wrap the cuff around your upper arm
and it starts to be inflated by bulb. The sensitive element of the Device feels
the weak pressure oscillations in the cuff generated by widening and contrac-
tion of the brachial artery in response to every heartbeat. Pumping in is ceased
when cuff is adequately pumped in to determine diastolic and systolic pressure
(the amplitude of the pressure waves is measured, converted into millimeters
Hg and shown on the display as figures) after which air is released from cuff.
The Device is capable to store in its memory up to 90 sets of measurement
values. Remember that the Device will not maintain the mentioned accuracy
of a measurement if it is used or stored at a temperature or humidity other
than those specified in Technical Specifications of this Manual. We are warning
about possibility of mistakes in blood pressure measurement with this Device
in persons with pronounced cardiac arrhythmia. Consult the doctor concern-
ing blood pressure measurement of your child.
APPLIED NEW LD TECHNOLOGIES
Fuzzy Algorithm – algorithm for processing the measurement
values with regard to peculiarities of the man’s heartbeat, thus,
ensuring high measurement accuracy.
WARNING! This Device may be used only with cuffs:
- Cuff-LDA, size 25-36 cm (delivered in a set with the Device);
- Cuff-LDA2, size 32-43 cm (sold separately).

5
ENG
RECOMMENDATIONS ON CORRECT MEASUREMENTS
1. For correct measurement you should know that THE BLOOD PRESSURE IS
SUBJECT TO SHARP VARIATIONS EVEN WITHIN THE SHORT TIME INTERVALS.
The blood pressure depends on many factors. It is usually lower in summer and
higher in winter. The blood pressure varies together with the atmospheric pres-
sure, depends on physical loads, emotional excitement, stresses and dietary
regime. Drugs, drinking alcohol and smoking produce significant effect. Even the
very procedure of blood pressure measurement in a polyclinic sends the blood
pressure high in many people, thus, the blood pressure measured at home often
differs from the values received in a polyclinic. As the blood pressure tends to rise
at low temperatures, make measurements at an indoor temperature (approxi-
mately 20° C). If this Device stayed under a low temperature, keep it for at least
1 hour at an indoor temperature before use, otherwise the measurement result
may be incorrect. During a day the difference in readings for healthy people may
be 30-50 mmHg of systolic pressure and to 10 mmHg of diastolic pressure. The
dependence of the blood pressure on various factors is individual for each per-
son. Accordingly, it is recommended to keep a special book with blood pressure
records. ONLY A CERTIFIED DOCTOR USING YOUR RECORDS IS CAPABLE TO ANA-
LYZE THE TENDENCY OF YOUR BLOOD PRESSURE VARIATIONS.
2. At cardiovascular and some other diseases requiring blood pressure monitor-
ing make measurements in the hours fixed by your attending doctor. REMEMBER
THAT THE DIAGNOSTIC AND ANY TREATMENT OF HYPERTENSION MAY BE CON-
DUCTED ONLY BY A CERTIFIED DOCTOR ON THE BASIS OF BLOOD PRESSURE VAL-
UES OBTAINED BY THIS DOCTOR. TAKING OF DRUGS AND THEIR DOSES SHOULD
BE PRESCRIBED ONLY BY YOUR ATTENDING DOCTOR.
3. At such disorders as deep vascular sclerosis, weak pulse wave and also in patients
with the prominent distortions of cardiac rhythm it may be difficult to measure the
blood pressure accurately. IN SUCH CASES CONSULT A CERTIFIED DOCTOR ABOUT
APPLICATION OF THE ELECTRONIC
DEVICE .
4. KEEP QUIET DURING A MEASUREMENT TO OBTAIN THE ACCURATE VALUES OF
YOUR BLOOD PRESSURE WITH THE ELECTRONIC DEVICE. MEASURE YOUR BLOOD
PRESSURE IN THE CALM AND COMFORTABLE CONDITIONS AT THE INDOOR
TEMPERATURE. NO EATING AN HOUR BEFORE MEASUREMENT; NO SMOKING,
TAKING TONIC AGENTS, ALCOHOL 1.52 HOURS BEFORE MEASUREMENT.
5. The accuracy of blood pressure measurement depends on whether the cuff
matches the size of your arm. THE CUFF SHOULD NOT BE TOO SMALL OR TOO LARGE.
6. Wait 3 minutes between measurements for the blood to restore its circula-
tion. However, the persons with prominent atherosclerosis due to consider-
able loss of vascular elasticity may need to increase the wait time between
measurements (10-15 minutes). This also refers to the patients suffering for

6
ENG
long from diabetes . For more accurate determination of blood pressure it is
recommended to make a series of 3 consecutive measurements and to use
the average value.
POWER SUPPLY OF THE DEVICE
1. Open the cover of the battery compart-
ment and install 4 “AA” size batteries accord-
ing to polarity marked inside the
compartment. Do not use much force to
remove the cover of the battery compart-
ment.
2. Close the battery cover.
Replace all batteries when the Low Battery Indicator “ ”, appears on the screen
or when there is no any indication on the screen. The Low Battery Indicator
does not show the discharge level
. Alkali batteries are recommended. When the
device operating rules are observed, the batteries serve for approximately 1000
measurements. The batteries supplied with the Device are intended for check of
the Device performance at sale and their service life may be shorter than of the
recommended batteries
. Replace all four batteries at the same time. Do not use
the waste batteries . If the Device is unused for a long time, remove all batteries .
Do not leave the waste batteries in the Device .
CORRECT POSITION DURING MEASUREMENT
1. Sit at a table so that during blood pressure measure-
ment your hand rests on its surface. Be sure that the
cuff is placed approximately at the level of your heart
and that your arm lies freely on the table and does
not move.
2. You can measure the blood pressure lying on
the back. Look at the ceiling, keep quiet and do
not move during measurement. Be sure that
the cuff is placed approximately at the level of
your heart .

7
ENG
CUFF PREPARATION
1. I nsert the cuff end for about 5 cm into a
metal ring as shown in the figure.
2. Apply the cuff to your left upper arm so
that the air tube is directed to your palm. If
the measurement on your left arm is difficult,
you may use your right arm. In this case
remember that the readings may differ by
5-10 mmHg and even more
.
3. Wrap the cuff around your upper arm so
that the bottom of the cuff is approximately
2-3 cm above your elbow. The sign “ARTERY”
should be over the arm artery.
4. Fix the cuff so that it fits tightly to the arm,
but see that it is not overtight. Too tight or too
free placement of the cuff may give inaccurate
readings.
5. On the fixed cuff the sign «INDEX» should point
to the area «NORMAL (25-36 cm)». It means that
the cuff is chosen correctly and fits the size of your
upper arm. if the sign points to the area marked
«» the cuff is too small and the readings will be
higher. If the sign points to the area marked « »
the cuff is too large and the readings will be lower.
6. If the arm has a conic form, the cuff should be
put on with a spiral movement as shown in the
figure
.

8
ENG
7. If the rolled-up sleeve squeezes the arm
interfering with free blood flow the Device
may give inaccurate figures not corresponding
to your actual blood pressure.
MEASUREMENT PROCEDURE
1. Connect the air hoses of the cuff and bulb to the
T-piece. Insert the T-piece into the socket on the device
casing (fig. 1).
Make 3-5 deep inhales and exhales before taking a
measurement and relax. Do not move, do not speak
and do not toughen your arm.
2.Press
O/I .
3. All symbols will appear on the display screen for a short
time, two short sound signals will be given (fig. 2).
After the
signal, the screen shows“0”and marker
“ “ starts blinking.
It means that the devise is ready for measurement (fig. 3).
4.Pump the cuff by pressing on the bulb up to the pres-
sure 30-40 mmHg higher than your expected systolic
(upper) pressure.
The value of the pressure in the cuff is constantly displayed
on the device’s screen. If the sum of the expected systolic
(upper) pressure plus 30-40 mmHg is less or equal to 190
mmHg, you may, for convenience, pump the cuff until the
signal (the device produces a sound when the cuff pressure
is 190 mmHg).
IF THIS SUM IS GREATER THAN 190 MMHG, CONTINUE
TO PUMP THE CUFF EVEN AFTER THE SIGNAL UP TO
THE DESIRED PRESSURE, WATCHING THE DISPLAY
INDICATIONS.
DO NOT PUMP THE CUFF PRESSURE HIGHER THAN 300
MMHG SINCE IT EXCEEDS THE DEVICE MEASUREMENT
MAXIMUM. IF THE PRESSURE HIGHER THAN 300 MMHG IS
REACHED, AN INTERMITTENT SIGNAL WILL BE HEARD.
5. When the desired cuff pressure is reached, stop pressing on the bulb and put
it on the table accurately.
6. The cuff pressure then starts automatically decreasing and the marker“ “ appears on
the screen.
Fig.1
Fig.2
Fig.3

9
ENG
7. If symbol “ “ , appears during pressure release, it means
that the cuff has not been pumped up to the required level.
Pump the cuff up by additional 30-40 mmHg for 4 seconds
above the previous value, otherwise the display will show the
error message“ ”.
8.The pressure measurement continues all the time when
symbol “ “ is blinking. Try to stay motionless and not to
move your arm during the measurement.
OF THE MARKER “ “, APPEARS ON THE SCREEN, STOP
THE MEASUREMENT AND FULLY RELEASE THE CUFF PRESSURE BY PRESS
ING THE PRESSURE RELEASE VALVE. REPEAT THE MEASUREMENT FOLLOW
ING STRICTLY THE RECOMMENDATIONS OF THIS MANUAL.
9.In the end of the measurement the display will show the values of your pres-
sure and pulse, and the symbol
“ ” (fig. 4) will start blinking.
10. Release the remaining pressure in the cuff using the pressure release valve.
11. For taking a new measurement repeat all steps described in this para-
graph.
TO OBTAIN THE ACCURATE RESULT MAKE INTERVAL BETWEEN MEASURE
MENTS TO RESTORE THE BLOOD CIRCULATION. WAIT FOR AT LEAST 3 MIN
UTES BEFORE MAKING A NEW MEASUREMENT
.
If no actions are done in mode of date and time setting for more than 3 minute,
the Device will be switched off automatically.
12.Press
O/I to switch off.
MEMORY FUNCTION
1. The result of every measurement (blood pressure and
pulse) is automatically stored in the Device memory.
IF THE NOTICE ON ERROR APPEARS THE
MEASUREMENT RESULT WILL NOT BE STORED.
2. The Device stores up to 90 sets of measured values and
the average figures of last 3 measurements. When the num-
ber of measurements exceeds 90, the oldest record is deleted
to save the most recent values.
3. Press the M Button to see the figures stored in the mem-
ory. At first pressing on the M Button the average value of
three recent measurements stored in the memory with index
“A” will appear on the screen. At second pressing on the M
Button the screen will show for a short time index “1” (number
of the memory cell) and after this the recent measurement
result (Fig. 5). At each subsequent pressing on the M Button
the index of the next number of the memory cell will flash and
the content of this cell will be displayed.
Fig.4
Fig.5

10
ENG
MEMORY CLEARING
To delete all values stored in the memory, press the M Button and hold it down for
more than 5 seconds. Symbols “Clr” will appear on the screen and all values will
be deleted from the memory.
INFORMATION ABOUT ERRORS
Indication Likely cause Methods of correction
The arm cuff is applied
incorrectly or the air tube
T-piece is inserted not tightly
enough.
Measurements cannot be made
due to hand movement or
talking during measurements.
The cuff has not been pumped
up to the required pressure.
At such disorders as deep
vascular sclerosis, weak pulse
wave and also in patients with
the prominent distortions of
cardiac rhythm it may be difficult
to measure the blood pressure
accurately.
Be sure that the arm cuff is
applied correctly and the plug
is inserted tightly. Repeat the
whole measurement proce-
dure.
Repeat the measurement fol-
lowing strictly the recommen-
dations of this Manual.
Repeat the measurement after
pumping the cuff up 30-40
mmHg above the expected
systolic pressure.
In such cases consult a certified
doctor about application of the
electronic Device.
Batteries are discharged. Replace the batteries for new
ones.
CARE, STORAGE, REPAIR AND DISPOSAL
1.Keep this Device from exposure to higher humidity, direct sunlight, shocks,
vibration. THIS Device IS NOT WATERTIGHT!
2.Do not keep and use this Device near heating installations and open fire.
3.Remove the batteries if the Device will be unused for a long time. Battery
leaking may damage the Device. KEEP BATTERIES OUT OF REACH OF
CHILDREN!

11
ENG
4.Keep the Device clean and protect it from dust. Use the dry soft cloth to
clean the Device.
5. Keep the Device and its components away from water, solvents, spirit and petrol.
6.Protect the arm cuff from contacting on sharp things; do not stretch or fold
tightly the arm cuff.
7.Do not subject the Device to strong shocks, such as dropping on the floor.
8.This Device does not contain special controls to adjust the measurement
accuracy. It is prohibited to open individually the electronic block. Repair the
Device only in authorized organizations.
9.On expiration of the warranted service life apply from time to time to autho-
rized repair organizations to check the technical condition of the Device.
10.Dispose of the Device and its components according to the application
local regulations. No special requirements to disposal of this Device are
defined by the manufacturer.
11.The arm cuff may withstand multiple sanitary treatments. The internal tis-
sue surface of the arm cuff (contacting on arm) may be cleaned with cotton
ball soaked in 3%-solution of hydrogen peroxide. At long use the partial color
fading of the tissue coating of the arm cuff is possible. Washing and ironing of
the arm cuff are not allowed.
TROUBLESHOOTING TIPS
PROBLEM LIKELY CAUSE METHOD OF CORRECTION
After pressing
the O/I Button
no indication
on the display.
Discharge of batteries.
Polarity of batteries is not
observed.
Battery terminals are
contaminated.
Replace all batteries for new
ones.
Install batteries correctly.
Clean the terminals with dry
cloth.
Every time the
blood pressure
is different.
Measurements
are too low/
high.
Check that the arm cuff is
level with your heart?
Check that the arm cuff is
applied correctly?
Perhaps your arm muscles
are tough
?
Perhaps you talk or move
your arm during the
measurement?
Take the correct position for
measurement.
Take the correct position for
measurement.
Apply the arm cuff correctly.
Keep silence and quiet
during measurement.

12
ENG
Measurements
of the pulse
rate are too
high/low.
Perhaps you talk or move
your arm during the
measurement?
Perhaps you make
measurement directly after
physical load?
Keep silence and quiet
during measurement.
Repeat the measurement at
least in 5 min.
Spontaneous
failure of power
supply.
Actuation of automatic de-
energizing system
This is not a defect. The
Device is disconnected
automatically in 3 minutes
after the last operation of the
Device.
If regardless of the above recommendation you are unable to get correct measurement results, stop
the use of this Device and apply to a maintenance organization (addresses and telephones of autho-
rized organizations may be found in the warranty card). Do not try to adjust the internal mechanism
by yourself.
WARRANTY
1. The following LD product is covered by warranty for the period specified
in the warranty card
.
2. The warranty liabilities are contained in the warranty card given at the
sale of this Device to a purchaser.
3.
The addresses of organizations for warranty maintenance are given in the war-
ranty card
.
TECHNICAL SPECIFICATIONS
Measurement method oscillometric with Fuzzy Algorithm
Display LCD
Pressure indication range in an
arm cuff, mmHg
from 0 to 300
Measurement range:
pressure in an arm cuff, mmHg
pulse rate, 1/min
from 40 to 260
from 40 to 160
Range of admissible absolute er-
ror at measurement of
air pressure in an arm cuff,
mmHg.
pulse rate measurement , %
±3
±5
Power source, V
6

13
ENG
Type of power supply 4“AA”size batteries (LR6)
Max power intake, W 0,1
Memory 90 recent measurements + average value of
the last three measurements
Operation conditions:
Temperature, °C
Relative humidity, % Rh
from 10 to 40
85 and lower
Storage and transportation
conditions:
Temperature, °C
Relative humidity, % Rh
from -20 to 50
85 and lower
Cuff size: larger for adults
(upper arm circumference 25-36 cm)
Dimensions:
Size (electronic block), mm
Weight (without package, case,
batteries and adapter), g
121 x 84 x 64
303
Completeness
Electronic block, Cuff-LDA (with pipes and
T-piece), bulb model LD-S035 (with pressure
release valve and check valve),
4 batteries ,
a case, instruction manual, warranty card,
package
Year of manufacture Year the manufacture is given in the bottom
of the Device body in a serial number after
symbols“AA”
Symbols
Type BF
Important: Read the instructions
Type II

14
ENG
CERTIFICATION AND STATE REGISTRATION
This Device manufacturing is certified according to international standard ISO
13485:2003.
Devices comply with the requirements of European Directive MDD 93/42/ЕЕС, inter-
national standards, EN980, EN1041, EN1060-1, EN1060-3, EN10601-1-2, ISO 14971,
EMC (IEC 60601-1-2:2001/A1:2004, CISPR 11:2003/A2:2006, GROUP 1, CLASS B,
IEC 61000-3-2:2005, IEC 61000-3-3:1994/A2:2005
.
 Complaints and requests should be addressed to:
Little Doctor Europe Sp. z o.o.
57G Zawila Street, 30-390, Krakow, Poland
Service phone: [phone]
Manufactured under control:
Little Doctor International (S) Pte. Ltd., 35 Selegie Road # 09-02 Parkline Shopping
Centre, Singapore 188307
Manufacturer:
Little Doctor Electronic (Nantong) Co. Ltd., No.8, Tongxing Road Economic &
Technical Development Area, Nantong 226010, Jiangsu, PEOPLE'S REPUBLIC OF
CHINA
Distributor in Europe:
Little Doctor Europe Sp. z o.o.
57G Zawila Street, 30-390, Kraków, Poland
Sales Office phone: [phone], fax: [phone]
E-mail: [e-mail]
www.LittleDoctor.pl
Authorized Representative in the EU:
Shanghai International Trading Corp.GmbH
Eiffestrasse 80, 20537 Hamburg, Germany.

LITTLE DOCTOR INTERNATIONAL (S) PTE. LTD.
Yishun Central P.O. Box 9293 Singapore 917699,
Fax: [phone], E-mail: [email protected]
E196/1507/2
® Registered trade marks of Little Doctor International (S) Pte. Ltd.
© Little Doctor International (S) Pte. Ltd., 2015
Shanghai International Trading Corp.GmbH
Eiffestrasse 80, 20537 Hamburg, Germany. Tel: [phone]
www.LittleDoctor.ru
0123
®