scholarly journals The MPX5700AP Pressure Sensor Optimization for Blood Pressure Reading in The Design of Poltekad Electronic Detector Covid-19 (POLECTOR C-19) Using Oscillometer Method

2021 ◽  
Vol 2 (Oktober) ◽  
pp. 1-7
Author(s):  
Mohamad Imron Hanafi ◽  
Mohammad Ansori ◽  
Lalu Saefullah
Keyword(s):  
Blood Pressure ◽  
Pressure Sensor ◽  
Diastolic Pressure ◽  
Blood Pressure Monitoring ◽  
Systolic Pressure ◽  
Survey Method ◽  
Pressure Monitoring ◽  
Sensor Optimization ◽  
Measure Blood Pressure ◽  
Electronic Detector

Abstract - At the beginning of 2020 the world was shocked by the presence of a virus that attacks the respiratory tract, a virus known as Coronavirus Disease-2019 (Covid-19). Based on this problem, how does the system detect Covid-19 suspects based on blood pressure. In this study, researchers used a survey method which directly took data in the hospital. Therefore, the optimization of the MPX5700AP pressure sensor has been successfully made. At this time the researchers conducted a study that used the oscillometer method to measure blood pressure supported by Arduino Uno, which in waves will produce systolic and diastolic blood pressure. Blood pressure monitoring is made capable of measuring blood pressure in the range of 40-240 mmHg and this system has a systolic pressure error of 4.024 mmHg, while the diastolic pressure error is -0.408 mmHg.

INDIRECT ESTIMATION OF SYSTOLIC AND DIASTOLIC BLOOD PRESSURE IN THE NEWBORN

PEDIATRICS ◽  
1972 ◽  
Vol 50 (3) ◽  
pp. 387-394
Author(s):  
Colin H. M. Walker ◽  
Phillip J. West ◽  
Sanford L. Simons ◽  
Anthony R. Whytock
Keyword(s):  
Blood Pressure ◽  
Diastolic Pressure ◽  
Blood Pressure Monitoring ◽  
Systolic Pressure ◽  
Correlation Coefficients ◽  
Mean Value ◽  
Arithmetic Mean ◽  
Pressure Monitoring ◽  
Blood Pressures ◽  
The Mean

An impedance plethysmographic method for measuring systolic and diastolic blood pressures in small infants using standard electro-cardiogram recorders has been studied. The overall 95% confidence limit of the mean of five estimations was found to be ±3.74 mm Hg for the systolic and ±3.72 mm Hg for the diastolic value. Comparing this method with intra-arterial measurements gave correlation coefficients (r) of 0.95 (bias 10.09 mm Hg) for systolic pressure and 0.89 (Bias 10.09 mm Hg) for diastolic pressure. Values for the comparison with auscultation were 0.98 (bias 19.29 mm Hg) systolic and 0.86 (bias 10.17 mm Hg) diastolic, and for the comparison of the arithmetic mean value with the flush method 0.84 (bias 30.17 mm Hg). These results reveal a good correlation with the intra-arterial measurements and indicate that this technique can be used for the periodic or continuous blood pressure monitoring of infants.

Abstract 284: A Pilot Study Comparing Two Ambulatory Blood Pressure Monitors Worn at the Same Time

Hypertension ◽  
2012 ◽  
Vol 60 (suppl_1) ◽  
Author(s):  
Radhakrishna R Kallem ◽  
Kevin Meyers ◽  
Deirdre Sawinski ◽  
Raymond R Townsend
Keyword(s):  
Blood Pressure ◽  
Ambulatory Blood Pressure ◽  
Diastolic Pressure ◽  
Blood Pressure Monitoring ◽  
Demographic Data ◽  
Systolic Pressure ◽  
University Of Pennsylvania ◽  
Public Health Importance ◽  
Blood Pressures ◽  
The University

Introduction Ambulatory blood pressure monitoring (ABPM) has been proposed as the most effective way to characterize a person’s BP profile. However, there are very limited data in the literature comparing two simultaneously worn ABPM devices. Therefore, we compared an eight hour daytime simultaneous ABPM using two monitors (Mobil-O-Graph [I.E.M., Stolberg, Germany] and Spacelabs 90207 [Spacelabs Medical, Issequah, WA]). Methods Simultaneous BP and heart rate data were measured on 13 adult volunteers at the University of Pennsylvania using the two monitors over an 8 hour period. Other demographic data were also collected. Standard seated BPs were obtained in triplicate at the beginning and end of the 8 hour monitoring period using an Accutor (Datascope, Mahwah, NJ) device. Three blood pressures were obtained at 1 minute intervals, recorded and averaged for each arm using the Accutor device. Results The data show high concordance of measured mean arterial pressures (Mobil-O-Graph 101.4 [SEM-2.0] mmHg, Spacelabs 100.6 [SEM-2.4] mmHg) and heart rates (Mobil-O-Graph measuring 82.4 [ SEM- 4.1] beats/minute, Spacelabs 81.7 [4.0] beats/minute) between the monitors. Spacelabs measured a 10 mmHg higher systolic pressure (p=0.0016) and a non-statistically significant, but numerically higher (2.8 mmHg) diastolic pressure (Figure 1). Conclusion The systolic BP difference between the two devices has public health importance. These differences if confirmed in larger cohorts, ABPM manufacturers should consider developing a normative database to help practitioners interpret ABPM data obtained with their device.

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

Semiautomatic blood pressure monitor utilizing an electronic sphygmomanometer

1977 ◽  
Vol 43 (2) ◽  
pp. 379-381 ◽  
Author(s):  
R. Winn ◽  
J. R. Hildebrandt ◽  
J. Hildebrandt
Keyword(s):  
Blood Pressure ◽  
Diastolic Pressure ◽  
Cuff Pressure ◽  
Blood Pressure Monitoring ◽  
Systolic Pressure ◽  
Blood Pressure Monitor ◽  
Noninvasive Blood Pressure ◽  
Pressure Monitor ◽  
Korotkoff Sound ◽  
Steady Rate

A semicontinuous but noninvasive blood pressure monitoring system is described. It consists of a commercial electronic sphygmomanometer which utilizes a microphone under an occluding arm cuff to detect the Korotkoff sounds, a pressure transducer, and a simple gating circuit. The gate passes the cuff pressure signal to a recorder only when a proper Korotkoff sound is detected. The cuff is rapidly inflated to just above the anticipated systolic pressure, then deflated at a steady rate of 2–6 Torr/heartbeat. When diastolic pressure is passed, the cuff is fully deflated momentarily before repeating the cycle. Systolic and diastolic pressures can be recorded up to 3 or 4 times/min. Spurious signals are rejected by the electronics which process the output of the microphone. This allows the use of the system in experiments on exercising man and in environments where unwanted signals exist. The system offers greater versatility than commercial semiautomatic pressure monitors, at less than half the cost.

scholarly journals Clinical-hemodynamic efficiency of fixed combined hypotensin therapy for patients with heavy arterial hypertension

2019 ◽  
Vol 21 (2) ◽  
pp. 48-51
Author(s):  
N R Gizi Azayeva
Keyword(s):  
Blood Pressure ◽  
Arterial Hypertension ◽  
Diastolic Pressure ◽  
Blood Pressure Monitoring ◽  
Systolic Pressure ◽  
Clinical Manifestations ◽  
Pressure Profile ◽  
Left Ventricular ◽  
Combination Drug ◽  
Efficacy Of Treatment

The efficacy of treatment was evaluated by the fixed combination drug «Exforge-H» in 40 patients suffering from grade 3 arterial hypertension. All patients underwent general clinical and laboratory and instrumental examination (electrocardiography, echocardiography, 24-hour blood pressure monitoring) before and after 6 months of treatment. It was established that treatment with «Exforge-H» statistically reliably reduces the level of blood pressure, normalizes the variability and daily blood pressure profile. So, two weeks after the start of treatment, the systolic and diastolic pressure levels during clinical measurement decreased by 32,1±2,7 and 30,4±1,9 mm Hg. Art. respectively. After 3 months of treatment, 60% of patients showed achievement of the target level of blood pressure, and after 6 months - 96%. High hypotensive efficacy of treatment was also demonstrated during the daily monitoring of blood pressure in all its indicators. A significant decrease in systolic and diastolic pressure was observed during the day and night hours. The amplitudes of systolic and diastolic pressure variability have also been improved. At the same time, the variability of systolic pressure during the day was reduced by 46%, diastolic - by 49%, and at night by 59,3 and 52,8%, respectively, indicating a normalization of blood pressure during the day. All this was also accompanied by a decrease in the clinical manifestations of the disease. So, after 6 months of treatment, 84% of patients had positive clinical dynamics: a decrease in cardiac and cerebral symptoms, as well as emotional lability, which positively correlated with a decrease in the level of clinical blood pressure. The cardioprotective effect of the drug is expressed in the form of regression of left ventricular hypertrophy. In general, the use of the three-component fixed drug «Exforge-H» (valsartan - 80 mg, amlodipine - 5 mg and hydrochlorothiazide - 12,5 mg) is manifested by an increased antihypertensive effect due to the influence of its constituents side effects and the development of metabolic changes.

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