1. First, connect all the devices. Connect the rubber tube to the digital blood pressure device and the pulse oximeter to the heart rate device. Then, attach the battery at the back of the heart rate device.
2. Wear the blood pressure cuff in your upper left or right arm. The rubber tube must be aligned in the center palm to have an accurate reading. 3. Wear the pulse oximeter in any of your finger which fits it best. The red
LED light and the photodiode must be facing each other and it must be tightly wrapped to your finger.
4. If the attachment of pulse oximeter is tight enough, you should be feeling the beat of you pulse. If you do, check if your pulse is in rhythm with the blinking LED light in front of the heart rate device. If you do not, reattach the pulse oximeter.
5. If your pulse is in rhythm with the LED light, then you are ready to start the application but if it is not in rhythm, then adjust the potentiometer in the heart rate device.
6. Now, start the android application and then add a new patient record. Fill in all the needed information carefully.
7. After that, go back to the main menu and push the “Use Selected” button. 8. Then it will ask if you want to open the Bluetooth connection, choose
56 9. Push the “Start” button to start the heart rate calibration. If it did not fail
then the reading must be displayed in the screen. If the calibration fails, it will ask you if you want to recalibrate, choose “Yes”, if it continues to fail, try to reset the heart rate device and the android app.
10. To display and record your blood pressure in the app, power on the digital blood pressure. Place the cuff on the upper half of the arm and press the start button on the blood pressure. Afterwards, the results will be
displayed on the blood pressure monitor. For the results to be transferred on the smart phone, press the “Inquire BP” button on the application. 11. To see previous records, push the “View History” button.
12. To modify and delete patient record, you must go back to the main menu and then push the “Modify Database” button.
1. System Requirement
Here are the requirements necessary to operate the device. It should be a smart phone with the following features:
a. Android Operating System : Android Gingerbread 2.3.5 and above
b. Bluetooth Connection
c. Minimum Memory of 512MB.
2. Installation Procedure
1) Copy the MITBP.apk file located in the CD included in the package anywhere in your android phone’s memory.
57 2) Then open the file to install it.
3) You must agree to the following questions to able to install it.
Safety Precautions
Statements provided below indicate pointers to prevent hazards from users when handling the unit:
If one is using a power supply, never attempt to plug or unplug the power outlet when one’s hand is wet. Push the plug all the way into the power outlet.
If one prefers to use battery, never attempt to connect the battery with wet hands. Do not touch the battery while in use.
Caution Statements provided below indicate pointers for the unit safety handling to prevent hardware complications:
The device is Electrostatic discharge (ESD) sensitive. Improper handling may result to damage. Do not touch any of the electronic components of the device placed inside the package.
Do not place heavy objects on the device.
Keep the device away from hot objects. Store the device in a cool, safe place to prevent damage.
58 Never use any power supply greater than the required:12V
Observe the correct placement of the battery. Wrong placement of polarity will damage the components of the unit.
Handle the unit with care. Do not drop the hardware.
3. User’s Manual Device Description
Measures your blood pressure and heart rate and display the result in your Android phone.
Your blood pressure reading is by-request.
Your heart rate is being monitored continuously.
Notifies your relatives and doctor if any irregular reading has been received.
You can modify the blood pressure and heart rate limits.
Every reading is being saved in a text file.
4. Troubleshooting Guides and Procedures
In adjusting the potentiometers, it is easier to adjust only one potentiometer to have a precise reading.
Using other power supply other than rechargeable batteries may affect the reading of the heart rate because it may have some noise to it.
If your heart rate is too far from the normal, it can be caused by improper wrapping of the pulse oximeter in your
59 finger, reattaching it may help. Find the finger which best fitted the pulse oximeter, meaning that the LED light and the photodiode are facing each other.
5. Error Definitions
An error reading in your BP means that you are not seated properly or the cuff is not properly wore in your arm.
An error in heart rate calibration means that the pulse oximeter is not placed properly.
A “Generic Error” means that the SIM (Subscriber Identity Module) card, the user is using does not have credit of his/her phone. This occurs when the application tries to send a notification to someone but failed to do it due to insufficient amount.
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APPENDIX B