Design and sensitivity analysis of capacitive MEMS pressure sensor for blood pressure measurement

2020 ◽  
Vol 26 (8) ◽  
pp. 2371-2379 ◽  
Author(s):  
K. Srinivasa Rao ◽  
W. Samyuktha ◽  
D. Vazad Vardhan ◽  
B. Girish Naidu ◽  
P. Ashok Kumar ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Sensitivity Analysis ◽  
Pressure Sensor ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Capacitive Mems

Online Micro–Controller Non–Invasive Blood Pressure Monitoring System (E–BPM)

2012 ◽  
Author(s):  
Kelvin Tan ◽  
Mohd Hafiz Fazalul Rahiman ◽  
Ruzairi Abdul Rahim ◽  
Muhamad Jaysuman ◽  
Salinda Buyamin
Keyword(s):  
Blood Pressure ◽  
Pressure Sensor ◽  
Pressure Measurement ◽  
Blood Pressure Monitoring ◽  
Blood Pressure Measurement ◽  
Pressure Monitoring ◽  
Invasive Blood Pressure ◽  
Non Invasive ◽  
Invasive Blood Pressure Monitoring ◽  
Invasive Blood Pressure Measurement

Pengukuran tekanan darah telahpun merupakan sebahagian daripada pemeriksaan klinikal pada zaman perubatan moden ini. Dua daripada kaedah yang sering diaplikasi dalam mengukur tekanan darah secara tidak langsung ialah kaedah auskultatori dan kaedah osilometrik. Namun, kaedah konvensional auskultatori dengan menggunakan tolok tekanan dan stetoskop masih diguna secara meluas oleh doktor. Masalah utama dalam mengaplikasi cara konvensional ini ialah berlakunya ketidaktepatan bacaan akibat daripada kepekaan di kalangan doktor yang berlainan dalam menentukan tekanan darah bagi pesakit mereka. Sebaliknya, penggunaan mesin pengukur tekanan darah elektronik telah memberi penyelesaian bagi mengatasi masalah tersebut, tetapi ia masih tidak mampu menunjukkan keadaan denyutan jantung pesakit. Sebagai langkah untuk mengatasi masalah ini, sistem pengukur tekanan darah tidak langsung berdasarkan mikropengawal (e-BPM) telah direka bentuk dalam kajian ini bagi memberi pengukuran tekanan darah yang lebih mudah dan tepat melalui kaedah osilometrik. Untuk mengukur tekanan darah, tekanan yang di dapati di lengan akan dihantar ke port pengesan tekanan. e–BPM ini direka bagi memaparkan hasil pengukuran bersama-sama dengan isyarat ayunan (di mana ia mewakili keadaan denyupan jantung pesakit) pada skrin komputer. Selain itu, hasil pengukuran juga boleh dicetak bagi tujuan rujukan. Kajian ini, memaparkan hasil simulasi bersama–sama dengan isyarat ayunan, iaitu pendedahan kepada applikasi pengukuran tekanan darah secara tidak langsung. Ia juga boleh memberikan bacaan kadar denyutan dengan tepat. Sebagai tambahan, bagi ukuran tekanan darah, ketepatan sistem tersebut boleh diterima dengan merujuk depada nilai mean yang dihasilkan. Bagaimanapun, terdapat coefficients yang perlu dikaji semula untuk menambahbaik ketepatan dalam menjalankan ukuran tekanan darah. Kata kunci: Tekanan darah; pengesan tekanan Measurements of blood pressure have been part of the basic clinical examination since the earliest days of modern medicine. Two of the most commonly used methods in performing the non–invasive blood pressure measurement are the auscultatory method and the oscillometric method. However, the conventional auscultatory method using sphygmomanometer and stethoscope is still widely used by doctors. The main problem in implementing this conventional method is the inaccuracy in readings due to the different abilities among doctors in sensing their patients’ blood pressure. On the other hand, the usage of oscillometric electronic blood pressure monitors has provided a good solution to the problem but the limitation is that they do not indicate the patient’s heartbeat condition. As a solution, the online micro–controller based non–invasive blood pressure monitoring system (e–BPM) is developed in this study to provide a more convenient and accurate measurement of blood pressure using the principles of the oscillometric method. In performing the blood pressure measurement, the medical hardware delivers the pressure inside arm cuff to the pressure sensor port. The e–BPM is developed to display the measurement results with oscillation signal waveform (which indicates the patient’s heartbeat condition) on the computer screen where the results can be printed out for reference. The simulation results show the oscillation signal waveform, giving a comprehensive exposure in the application of non–invasive blood pressure measurement. The developed e–BPM is accurate in giving the measurement of pulse rate. In addition, for blood pressure measurements, the accuracy of the system is still acceptable by referring to the obtained mean values. However, some applied coefficients should be reviewed in order to improve the accuracy in performing the blood pressure measurement. Key words: Blood pressure; pressure sensor

Evaluation of two methods of teaching blood pressure measurement

1988 ◽  
Vol 52 (9) ◽  
pp. 519-521
Author(s):  
NK Nordstrom ◽  
S Longenecker ◽  
HL Whitacre ◽  
FM Beck
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Measurement

EFEKTIVITAS PEMBERIAN HYDROTHERAPI RENDAM KAKI PADA PENDERITA HIPERTENSI DI BANJAR SRI MANDALA, KELURAHAN DAUHWARU KABUPATEN JEMBRANA

2019 ◽  
Vol 10 (01) ◽  
pp. 33-44
Author(s):  
N.L.G. Sudaryati ◽  
I P. Sudiartawan ◽  
Dwi Mertha Adnyana
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Reduce Blood Pressure ◽  
Second Grade ◽  
Control Group ◽  
Hypertensive Patients ◽  
First Category

The aim of the study was to determine the effectiveness of giving hydrotherapi foot soak in hypertensive patients. The study was conducted with one group pretestposttest design without a control group by measuring blood pressure (pretest) before being given an intervention in the form of foot soak hydrotherm against 15 people with hypertension in Banjar Sri Mandala, Dauhwaru Village, Jembrana Subregency. Then do the blood pressure measurement again (posttest) after finishing the intervention. After the study was completed, the results showed that before the hydrotherapi foot bath intervention, there were 0% of patients classified as normal, 13.32% in prehypertension category, 60.08% in hypertension category I and 26.60% in hypertension category II. After the intervention was given, there were 13.32% of the patients classified as normal, 66.68% in the prehypertension category, 20.00% in the first category of hypertension and no patients belonging to the second grade hypertension category. There is a decrease of 20-30 mmHg for systolic blood pressure and 0-10 mmHg for diastolic blood pressure after intervention. Based on the results of the study it can be concluded that the hydrotherapi foot bath is effectively used to reduce blood pressure in hypertensive patients in the Banjar Sri Mandala, Dauhwaru Village, Jembrana District.

Study on Cuff-Less Blood Pressure Measurement Based on Electrocardiography and Photoplethysmography Signal

2019 ◽  
Vol 2 (3) ◽  
pp. 206-214
Author(s):  
Putri Indes Oktabriani ◽  
Fuad Ughi ◽  
Aulia Arif Iskandar
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Monitoring ◽  
Blood Pressure Measurement ◽  
Ecg Signal ◽  
Optimum Location ◽  
Blood Pressure Monitor ◽  
Pressure Monitor ◽  
Left Hand ◽  
Measure Blood Pressure

The continuous blood pressure measurement research is widely known for helpingthe development of ambulatory blood pressure monitoring where it measures blood pressureevery 15 to 30 minutes throughout the day. The cuff is a problem for the patient withAmbulatory Blood Pressure Monitor. It can make a person feel uncomfortable and must staystill when the cuff starts to inflate. It is limiting and disturbing their daily activity when thedevice is starting to measure the blood pressure. Blood pressure measurement without cuff isbeing proposed in this research, called cuff-less blood pressure measurement. It will be based onPhotoplethysmography (PPG) and Electrocardiography (ECG) signal analysis. ECG (Lead 1,Lead 2, and Lead 3) with PPG signal produced from index finger on the left hand are comparedand analyzed. Then the relation of PPG and ECG signal and the optimum location for daily usecan be obtained. The optimum location will be based on the electrode’s position that producedthe optimum ECG lead Signal to measure blood pressure. Based on the result, PPG and ECGsignal have a linear relation with Blood Pressure Measurement and Lead 1 is more stable inproducing the ECG signal. The equation from Lead 1 appeared as one of the optimum equationsfor measuring Systolic Blood Pressure (SBP) or Diastolic Blood Pressure (DBP).

Bio-compatible Micro-sensor for Blood Pressure Measurement using SiC Technology

2008 ◽  
Author(s):  
Gary L. Harris ◽  
Nupur Basak ◽  
Ken Wise ◽  
James Griffin
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Micro Sensor
Sign in / Sign up

Export Citation Format

Share Document