Development of Blood Pressure Measurement Device Using The Curve Fitting Method

Keywords: Blood Pressure, Curve Fitting Method, Digital Filter, Polynomial, Signal Processing


In present study, an automatic blood pressure measurement device was developed to perform measurement on the arm. The developed blood pressure measurement device was also used as display and control device. On this device, the curve fitting method, which is a very common numerical analysis method, was used to predict blood pressure. Resistor-Capacitor (RC) and digital filters were preferred to process and filter signal. Various tests were conducted on 21 individuals under the supervision of specialist health personnel. The obtained results indicate that a prediction accuracy of 94.67%, 92.51% and 97.68% can be achieved for systolic and diastolic blood pressure and heart rate values, respectively.


Download data is not yet available.


World Health Organization, “A global brief on hypertension: silent killer, global public health crises,” Available: bitstream/10665/79059/1/WHO_DCO_WHD_2013.2_eng.pdf, Accessed on: May 5, 2017.

G. Mancia, R. Fagard, K. Narkiewicz, J. Redon, A. Zanchetti, M. Böhm and M. Galderisi, “2013 ESH/ESC guidelines for the management of arterial hypertension: The Task Force for the Management of Arterial Hypertension of the European Society of Hypertension (ESH) and of the European Society of Cardiology (ESC),” Blood Pressure, vol. 22, no. 4, pp. 193-278, 2013.

National Institute for Health and Clinical Excellence, “Hypertension: Clinical management of primary hypertension in adults,” Available:, Accessed on: Mat 18, 2017.

J. O. Egwaile, O. I. Omoifo, O. O. Odia and O. Okosun, “Development of a real-time blood pressure, temperature measurement and reporting system for inpatients,” International Journal of Physical Sciences, vol. 11, no. 17, pp. 225-232, 2016.

M. Singh and N. Jain, “Performance and evaluation of smartphone based wireless blood pressure monitoring system using Bluetooth,” IEEE Sensors Journal, vol. 16, no. 23, pp. 8322-8328, 2016.

Z. M. Lin, C. H. Chang, N. K., Chou and Y. H. Lin, “Bluetooth Low Energy (BLE) based blood pressure monitoring system,” in International Conference on In Intelligent Green Building and Smart Grid, Taipei, Taiwan, 2014; pp. 1-4.

B. Mustapha, M. Z. Hassan, Z. Mohamad, I. Kamaruddin and R. Yahya, “PC based blood pressure meter for E-health application,” in 4th International Conference In Artificial Intelligence with Applications in Engineering and Technology (ICAIET), Kota Kinabalu, Malaysia, 2014; pp. 319-324.

İ. İlhan, İ. Yıldız and M. Kayrak, “Development of a wireless blood pressure measuring device with smart mobile device,” Computer Methods and Programs in Biomedicine, vol. 125, pp. 94-102, 2016.

İ. İlhan, “Smart Blood Pressure Holter,” Computer Methods and Programs in Biomedicine, vol. 156, pp. 1-12, 2018.

P. M. Silva, “A pervasive system for real-time blood pressure monitoring,” University of Porto, Portugal, Feb 2013.

H. H. Makhlef, “Assessment of Mosul University Students' Knowledge about First Aid,” Kufa Journal for Nursing Sciences, vol. 3, no. 1, pp. 278-285, 2014. ‎

R. Fuentes, M. A. Banuelos, “Digital Blood Pressure Monitor,” Journal of Applied Research and Technology, vol. 2, pp. 224-229, 2004.

G. Gersak and J. Drnovsek, “Evaluation of non-invasive blood pressure simulators,” In 11th Mediterranean Conference on Medical and Biomedical Engineering and Computing, Berlin, Germany, 2007, pp. 342-345.

M. Meza, J. Susteric, T. Krivic and J. F. Tasic, “An algorithm to determine the ankle-brachial pressure index using the oscillometric blood pressure measurement method,” Elektrotehnıskı Vestnık, vol. 78, no. 3, pp. 159–164, 2011.

C. F. Babbs, “Oscillometric measurement of systolic and diastolic blood pressures validated in a physiologic mathematical model,” Biomed Eng Online, vol. 11, no. 1, pp. 56, 2012.

Freescale Semiconductor Inc., “Noise Considerations for Integrated Pressure Sensors”, Application Note AN1646, Rev 2, May, 2005.

K. Worden, H. Sohn and C. R. Farrar, “Novelty detection in a changing environment: regression and interpolation approaches,” Journal of Sound and Vibration, vol. 258, no. 4, pp. 741-761, 2002.

S. Fleishman, D. Cohen-Or and C. T. Silva, “Robust moving least-squares fitting with sharp features,” Acm Transactions on Graphics, vol. 24, no. 3, pp. 544-552, 2005.

T. Ellis, J. McNames and B. Goldstein, “Optimal filter design to compute the mean of cardiovascular pressure signals,” IEEE Transactions on Biomedical Engineering, vol. 55, no. 4, pp. 1399-1407, 2008.

STMicroelectronics Corporation Ltd., Available: en/evaluation-tools/stm32f4discovery.html, Accessed on: August 12, 2017.

Winstar Display Corporation Ltd., Available: http://www.winstar., Accessed on: August 12, 2017.

Freescale Semiconductor Inc., Available: webapp/sps/site/prod_summary.jsp?code=MPXx5050, Accessed on: August 12, 2017.

Non-invasive sphygmomanometers - Part 2: Clinical validation of automated measurement type, ANSI/AAMI/ISO 81060-2 Standard, Arlington, 2013.

E. O’brien, J. Petrie, W. Littler, M. De Swiet, P. L. Padfield, K. O'malley and N. Atkins, “The British Hypertension Society protocol for the evaluation of automated and semi-automated blood pressure measuring devices with special reference to ambulatory systems,” Journal of Hypertension, vol. 8, no. 7, pp. 607-619, 1990.

E. O’brien, N. Atkins, G. Stergiou, N. Karpettas, G. Parati, R. Asmar and Working Group on Blood Pressure Monitoring of the European Society of Hypertension, “European Society of Hypertension International Protocol revision 2010 for the validation of blood pressure measuring devices in adults,” Blood Pressure Monitoring, vol. 15, no. 1, pp. 23-38, 2010.

M. Kayrak, M. S. Ulgen, M. Yazici, R. Yilmaz, K. Demir, Y. Dogan and S. Bodur, “A comparison of blood pressure and pulse pressure values obtained by oscillometric and central measurements in hypertensive patients,” Blood Pressure, vol. 19. no. 2, pp. 98-103, 2010.

How to Cite
I. Ilhan, “Development of Blood Pressure Measurement Device Using The Curve Fitting Method”, IJISAE, vol. 7, no. 3, pp. 145-152, Sep. 2019.
Research Article