scholarly journals Calibration methods of new device for human blood pressure measurement

2019 ◽  
Vol 201 ◽  
pp. 06003
Author(s):  
Łukasz Stala ◽  
Krzysztof Tomczuk
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Diastolic Pressure ◽  
Blood Pressure Measurement ◽  
New Device ◽  
Reference Device ◽  
Calibration Methods ◽  
Pressure Maximum ◽  
Parallel Measurement ◽  
Pneumatic Sensor

The paper presents two methods of determining calibration curve of a new device for blood pressure measurement. The device was developed at Wrocław University of Science and Technology. First method is based on parallel measurement of systolic and diastolic pressure measurement with use of reference device such as sphygmomanometer and researched new device with pneumatic sensor equipped with voltage type output. Obtained data (systolic ps and diastolic pd pressure, maximum us and minimum ud voltage) was then used to determine individual pressure-voltage characteristic of the device, which can be represented as a linear equation. Second method is based on substitution of experimentally proved coefficient b with its analytical equivalent extracted from mathematical model of described pneumatic sensor. Described methods were verified experimentally and compared. Metrological parameters of the device were designated.

Effects of Crossing Legs on Blood Pressure Measurement

2001 ◽  
Vol 10 (2) ◽  
pp. 202-213 ◽  
Author(s):  
Rebecca Keele-Smith ◽  
CeCilia Price-Daniel
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Diastolic Pressure ◽  
Blood Pressure Measurement ◽  
Systolic Pressure ◽  
Nursing Intervention ◽  
Health Condition ◽  
Senior Population

The purpose of this study was to determine if blood pressure measurement is affected by the leg crossed at the knee as compared with feet flat on the floor in a well-senior population. Participants (N = 110) either had their blood pressure measured with feet flat first and then crossed or the reverse of this. Results indicate that blood pressure was significantly higher when legs were crossed versus uncrossed. Systolic pressure changed by 5.9 mmHg, from 127.32 to 133.24, whereas diastolic pressure changed by 2.97, from 72.54 to 75.52. There were no significant differences between those who had their blood pressure measured first with their legs crossed versus uncrossed or between those with and without hypertension. Instructing patients to keep feet flat on the floor during blood pressure measurement is an important nursing intervention that can contribute to the accurate measurement, interpretation, and treatment of a patient's health condition.

scholarly journals A new device for indirect blood pressure measurement in rabbits.

1994 ◽  
Vol 58 (4) ◽  
pp. 264-268 ◽  
Author(s):  
TOSHIAKI KURASHINA ◽  
TETSUO SAKAMAKI ◽  
ATSUKO YAGI ◽  
TETSUYA NAKMURA ◽  
HIRONOSUKE SAKAMOTO ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
New Device ◽  
Indirect Blood Pressure

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).

The Effects of Passive and Active Smoking on Brachial and radial Blood Pressure and Some Other Physical Factors in Healthy Young Adults

2017 ◽  
Vol 5 (3) ◽  
pp. 259
Author(s):  
Shireen H. Ramadhan ◽  
Shamil K. Talal ◽  
Wasfiya A. Moner
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Oxygen Saturation ◽  
Oxygen Concentration ◽  
Tobacco Smoke ◽  
Blood Pressure Measurement ◽  
Reference Level ◽  
Physical Factors ◽  
New Device ◽  
Active Smoker

Tobacco smoke is enormously harmful to human health, there’s no safe way to smoke. The primary objective of this study is to analyze the role of tobacco smoke compounds and their ability to damage the cardiovascular system and, in particular, to interfere with blood pressure (Brachial and radial pressure), heart rate and partly on the percentage blood Oxygen saturation. A new device has been manufactured which is unique for measuring the level of smoke, to obtained privies readings, the device had fixed to the first reference level آ and starting up from it. The effect of smoking has been studied on (26) male passive (26) active smoker volunteer, (14) female passive and (14) female active smoker participants. The results has been showed that the blood pressure and heart rate has been increased with increasing the number of cigarettes in both genders for passive and active smokers. However, this effect for male was more pronounced comparing with females for passive and active smokers. In the case of oxygen saturation concentration percentage, for males the change of oxygen concentration percentage was not stable. In other words, it was fluctuated with the number of cigarettes. But for females the oxygen concentration was decreased but not too much. This means that this effect was not pronounced. this study found آ that the most pronounced effect has been shown by male’s comparison to females for both passive and active smokers. As well as in nonsmoker’s males, the relation between heart rate and smoke level is inversely proportional. While in male and female smokers and female nonsmokers the relation is proportional. In all cases the relation between the smoke level and time of smoking is inversely proportional. Finally males& females are affected differently by tobacco use; the sensitivities to smoke for males are higher than in females for passive and active smokers in both brachial and radial blood pressure measurement.

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