Little Doctor LD51s - Digital Blood Pressure Monitor Manual

NAMES OF PARTS AND COMPONENTS

1. MAIN UNIT.
2. LCD DISPLAY.
3. CUFF JACK.
4. CUFF PLUG.
5. AIR TUBE.
6. CUFF.
7. POWER SUPPLY ADAPTER JACK.

8. POWER SUPPLY LD-N057 (INCLUDED).
9. BUTTON M2 (MEMORY 2).
10. (START/STOP) BUTTON.
11. BUTTON M1 (MEMORY 1).
12. BATTERIES.
13. WARRANTY CARD.
14. OPERATION MANUAL.
15. CARRYING BAG.

GENERAL INFORMATION

This manual serves to help the user safely and effi ciently operate the Digital Blood Pressure and Pulse Rate Monitor LD, model LD51S (hereinafter – the DEVICE). The device shall be used in accordance with the rules given in the manual and shall not be used for any purposes other than those described herein. Carefully read and understand the entire manual and the «Recommendations for Correct Measurement» section, in particular.

INDICATIONS FOR USE

The device is designed to measure systolic and diastolic blood pressure and pulse rate in patients aged 15 or older. The device is recommended for home use by patients with impaired vision, unstable/variable blood pressure or arterial hypertension alongside with medical supervision. The cuff is suitable for the upper arm with a circumference of 25 to 36 cm.

PRINCIPLE OF OPERATION

The device uses the oscillometric method of blood pressure and pulse rate measurement. The cuff is wrapped around the upper arm and automatically infl ated. The device sensor detects weak cuff pressure fl uctuations, produced by the brachial artery expansion and contraction in response to each heartbeat. The amplitude of pressure waves is measured, converted to millimeters of mercury and displayed in the form of a digital value. The device has 2 memory blocks 90 cells per each for storing the measurement results. Please note that the device may not provide the indicated measurement accuracy if used or stored at a temperature or humidity other than those specifi ed in the «Specifi cations» section of this manual. Please consider possible errors when measuring the blood pressure of persons with a severe arrhythmia. Please consult your doctor when measuring the blood pressure of a child.

RECOMMENDATIONS ON CORRECT MEASUREMENT

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 pressure, depends on physical loads, emotional excitement, stresses and dietary regime. Drugs, drinking alcohol and smoking produce signifi cant
   Effect on blood pressure. Even the very procedure of blood pressure measurement in a hospital sends the blood pressure high in many people, thus, the blood pressure measured at home often diff ers from the values received in a hospital. As the blood pressure tends to rise at low temperatures, make measurements at an indoor temperature (approximately 20ºC). If this Device was stored in the room with low temperature, keep it for at least 1 hour at an indoor temperature before use, otherwise the measurement result may be incorrect. During the day, the diff erence 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 person. Accordingly, it is recommended to keep a special book with blood pressure measurement records. ONLY A CERTIFIED DOCTOR IS CAPABLE TO ANALYZE THE TENDENCY OF YOUR BLOOD PRESSURE VARIATIONS USING YOUR RECORDS.
2. People with cardiovascular and some other diseases requiring blood pressure monitoring should make measurements in the hours fi xed by attending doctor. REMEMBER THAT THE DIAGNOSTIC AND ANY TREATMENT OF HYPERTENSION MAY BE CONDUCTED ONLY BY A CERTIFIED DOCTOR ON THE BASIS OF BLOOD PRESSURE VALUES OBTAINED BY THIS DOCTOR. DRUGS PRESCRIPTION SHOULD BE CARRIED OUT 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 diffi cult 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, no taking tonic agents or 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 circulation. However, the persons with prominent atherosclerosis due to considerable loss of vascular elasticity may need to increase the wait time between measurements (10-15 minutes). This also refers to the patients suff ering 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.

INSTALLING BATTERIES

1. Open the cover of the battery compartment and install 4 "AA" size batteries according to polarity marked inside the compartment. Do not use much force to remove the cover of the battery compartment.
2. Close the battery cover.
   Replace all batteries when the Low Battery Indicator " ", appears on the screen or when there is no indication on the screen. The Low Battery Indicator does not show the discharge level. It is recommended to use alkaline batteries. If the Device operation rules are observed, the batteries will last for approximately 1,000 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 recom mended 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 POSE DURING MEASUREMENT

1. Sit near a table so that your arm rests on its surface during measurement. Make sure that the point of the cuff application is approximately at the same height as your heart, and that your forearm lies freely on the table and does not move.
   
2. You can measure pressure when lying on your back. Look at the ceiling, keep calm and do not move during measurement. Make sure that the measurement point on your upper arm is approximately at the same level as your heart.
   

CUFF PREPARATION

1. Insert the cuff end for about 5 cm into a metal ring as shown in 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 make sure that it is not overtight. Too tight or too loosen 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 figureres not corresponding to your actual blood pressure.
   
   

MEASUREMENT PROCEDURE

The device has a voice annunciation function «VS», so presetting is required prior to using: the voice system volume level and language need to be selected.

VOICE SYSTEM VOLUME LEVEL SETTING

To set the volume level on the powered-off device, press and hold M1 button and, at the same time, press the button once. The " "symbol fl ashes on the display. Press M1 button to select the desired volume level.
The voice annunciation level is displayed with the following symbols:
– the voice annunciation is disabled;
– minimum volume level;
– medium volume level;
– maximum volume level.
Press the button to finish the voice annunciation volume setting.

VOICE ANNUNCIATION LANGUAGE SETTING

To set the voice annunciation language on the powered off device press and hold M1 button and, at the same time, press the button twice. «L» symbol appears on the display. Press M1 button to select the desired language. The voice annunciation language is displayed with the following symbols:
L1 – Polish;
L2 – Hungarian;
L3 – Romanian;
L4 – Russian;
L5 – Ukrainian.
Press the button to finish the voice annunciation language setting. Polish language set by default.

BLOOD PRESSURE MEASUREMENT PROCEDURE

1. Insert the cuff plug into the cuff jack. Before taking a measurement do 3-5 deep breaths and relax. Do not move, talk or tense your arm during the measurement.
2. Press the button .
3. All the symbols will be displayed briefly. You will hear a voice message about the measurement start. The device will automatically start air infl ation into the cuff. The inflation will initially stop at 190 mm Hg.
   
   
4. Upon reaching 190 mm Hg, the cuff pressure will gradually decrease. The values displayed will start to decrease. The pulse is indicated by flashing " " symbol. SINCE THE BLOOD PRESSURE AND PULSE RATE ARE MEASURED DURING THE CUFF DEFLATION, PLEASE REMAIN STILL AND NEITHER MOVE YOUR HAND NOR TENSE THE MUSCLE DURING THE MEASUREMENT.
5. At the end of measurement the device will deflate the cuff and display the measurement results duplicated by a voice message. M1/M2 symbols will start to fl ash, reminding to save the results to memory 1 or 2 by pressing M1 or M2 button respectively. If the memory is not selected within 3 minutes, the results will not be saved and the device will automatically turn off.
   
6. Press the button to turn it off. TO OBTAIN ACCURATE RESULTS, THE BREAK BETWEEN THE MEASUREMENTS IS NEEDED TO RESTORE THE BLOOD CIRCULATION. MEMORY DATA WILL BE SAVED EVEN WITH THE DEVICE STORED WITHOUT THE BATTERIES.
   SAVED DATA CAN BE DELETED FROM THE DEVICE MEMORY BY FOLLOWING THE ACTIONS DESCRIBED IN THE «MEMORY FUNCTION» SECTION. If no action is taken within 3 minutes after measurement, the device will automatically turn off.

MEMORY FUNCTION

1. Each measurement results (pressure and pulse) can be saved to the device memory. To do this, once the measurement completed, within no more than 3 minutes, you need to select memory M1 or M2 for saving.
   THE MEASUREMENT RESULTS WILL NOT BE SAVED IN CASE OF ERROR MESSAGE DISPLAYED.
2. Each memory block can store up to 90 measurement results and the average value of the last 3 measurements. When the number of measurements exceeds 90, the oldest record is automatically deleted to save the most recent measurement values.
3. You can view the memory contents by pressing M1 or M2 button. When M1 (or M2) button is pressed for the fi rst time, the average value of the last 3 measurements stored in M1 (or M2), indicated by «A» symbol, will be displayed.
   

When M1 (or M2) button is pressed again, the indicator of the selected memory M1 (or M2) and the cell number will be displayed, showing its contents duplicated by a voice message 1 second later. Each press of M1 (or M2) button takes you to the next memory cell.

DEVICE MEMORY CLEARING

To delete all saved measurement results from M1 (or M2) memory, press and hold M1 (or M2) button for more than 3 seconds. «Clr» symbol will be displayed and the selected memory will be cleared.

ERROR MESSAGES

INDICATION	POSSIBLE CAUSE SOLUTION	REMEDY
	The cuff is put on incorrectly or the air tube tee connector is inserted loosely. Measurements could not be done because of the arm movement or talking during measurement. The cuff was not pumped to the required level. In case of apparent heart rhythm disorders, deep vascular sclerosis, weak pulse wave, correct measurement of blood pressure may be hindered.	Make sure the cuff is put on correctly, and the tee is inserted tightly, and repeat the measurement procedure. Repeat the measurement with full observation of the recommendations of this operation manual. Repeat the measurement, pumping the cuff 30-40 mm Hg higher than the expected systolic pressure. In these cases, you should consult a certifi ed physician about the use of the electronic Device.
	Batteries are discharged	Replace all batteries with new ones

CARE, STORAGE, REPAIR AND DISPOSAL

1. This Device should be protected from increased humidity, direct sunrays, impact, vibration. THE DEVICE IS NOT WATERPROOF!
2. Do not store and do not use the Device in close proximity to heating Devices and open fi re.
3. If the Device is not used for a long time, remove the batteries from the Device. Battery leakage may damage the Device.
   KEEP THE BATTERIES AWAY FROM CHILDREN!
4. Do not contaminate the Device and protect it from dust. You can use soft dry cloth to clean the Device.
5. Avoid contact of the Device or its parts with water, solvents, alcohol. Do not use petroleum.
6. Protect the cuff from sharp object, and do not try stretching or twisting the cuff.
7. Do not expose the Device to strong impacts and do not drop it.
8. The Device does not have any measurement accuracy controls. Individual disclosure of the electronic unit is prohibited. If necessary, the repair shall be performed only in specialized organizations.
9. After the end of the established service life you should periodically contact experts (specialized repair organizations) to check the technical condition of the Device.
10. Disposal is governed by the rules in eff ect in your region. The manufacturer does not establish any special disposal conditions for this Device.
11. The cuff is resistant to repeated sanitary treatment. It is allowed to treat the inner side of the cloth surface of the cuff (the one contacting with the patient's arm) with a cotton wool pad damped in 3% hydrogen peroxide solution. In case of continuous use, partial decoloring of the cloth surface of the cuff is admissible. Wet wash of the cuff, as well as its treatment with a hot iron, is not allowed.

POTENTIAL PROBLEMS

TECHNICAL SPECIFICATIONS

Documents / Resources

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