Portable non-invasive blood pressure measurement using pulse transmit time
College
Gokongwei College of Engineering
Department/Unit
Electronics And Communications Engg
Document Type
Article
Source Title
HNICEM 2017 - 9th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment and Management
Volume
2018
Issue
January
First Page
1
Last Page
4
Publication Date
7-2-2017
Abstract
The conventional method of blood pressure measurement in hospitals uses a cuff that inflates on an arm and causes slight pain on the patient. An alternate device that eliminates this consequence is proposed. Plethymography is the measure of change in blood volume due to blood pressure. Photoplethymography (PPG) uses optical sensors to measure this changes in volume. From PPG, we can derive pulse transit time (PTT), the time difference of two pulses from different sites. We can also directly derive from PPG the heart rate. PTT has been strongly correlated to blood pressure. A mathematical model has been derived and presented to show the relationship of blood pressure and PTT. After testing the device, heart rate and blood pressure data were gathered from the device and the same kind of data was gathered from a conventional blood pressure and heart rate measuring device to act as actual values. These sets of data were compared with each other using the T-test method. Upon applying the treatment, all three two-tail P values are greater than 0.05 which means that the null hypothesis that there is no difference in the results obtained from the two vital signs measuring systems fails to be rejected which means that the proposed system can used as an alternative to the conventional system. © 2017 IEEE.
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Digitial Object Identifier (DOI)
10.1109/HNICEM.2017.8269546
Recommended Citation
Noche, K. B., Villaverde, J. F., & Lazaro, J. (2017). Portable non-invasive blood pressure measurement using pulse transmit time. HNICEM 2017 - 9th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment and Management, 2018 (January), 1-4. https://doi.org/10.1109/HNICEM.2017.8269546
Disciplines
Electronic Devices and Semiconductor Manufacturing
Keywords
Blood pressure—Measurement—Instruments; Medical instruments and apparatus; Arduino (Programmable controller); Raspberry Pi (Computer)
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