Development of Blood Pressure Simulator for Test of the Arm-type Automatic Blood Pressure Monitor

Abstract

Blood pressure is possible to diagnose a disease associated with blood pressure and judgment the current health of patients. Automatic blood pressure monitor capable of measuring a blood pressure easily in hospital and at home have become spread. In this study, we developed the blood pressure simulator (BPS) that can test the arm-type automatic blood pressure monitor that is commonly used in hospital. BPS is to produce a pressure similar to the pressure wave generated in the human blood using a servo disk motor. Then, using the silicon tube, it implements the situations such as human blood vessels, and to output the generated pressure waveform. Simply the BPS's phantom put on the cuff and it is able to simulate blood pressure. So anyone can quickly test the blood pressure monitor within one minute and it is possible to shorten the test time required for the automatic blood pressure monitor. In Performance test, the trends and the standard deviation of the values measured in the BPS is similar to the value of the measured pressure from people with normal blood pressure. Thus, the development BPS showed a possibility of taking into account the actual blood pressure measurement environment simulator.

A single-pieced, fully air-driven, cuff-inserted pseudo-blood pressure generator for on-site pre-screening test of non-invasive blood pressure monitor by nurses

“…In addition, water supply and water discharge are necessary before and after the inspection; therefore, it is not suitable for quick and convenient on-site inspections. In addition, Kim et al proposed an arm-type BP simulator that utilizes pneumatic pressure, not hydraulic pressure [8]. However, they used a bellows, servo disk motor, and screw piston for pneumatic pressure generation; therefore, it is difficult to manufacture a small and light single-pieced device, and as a result, it is not suitable for on-site inspections, too.…”

Correlation analysis of human upper arm parameters to oscillometric signal in automatic blood pressure measurement

“…For the blood vessel, the inner and outer radii were set to 2.25 and 2.75 mm, respectively, and the Poisson's ratio and elastic modulus were set to 0.45 and 450 kPa, respectively 23,30 . For the soft tissue, the inner and outer radii were set to 2.75 mm and 45 mm, respectively, and the Poisson's ratio and elastic modulus were set to 0.45 and 47.5 kPa, respectively 34 .…”

“…The soft tissue was assumed to be composed of linear elastic materials; as the strain was less than 10% during the blood pressure measurement and within the range it exhibits linear elastic behavior 23 . The soft tissue was modeled with an elastic modulus of 47.5 kPa and a Poisson's ratio of 0.45 34 and the artery wall was modeled with an elastic modulus of 450 kPa and a Poisson's ratio of 0.45 23,30 . Here, the radius, elasticity, and thickness of the artery and the elasticity of the soft tissue were varied for the parametric study.…”

“…The muscle was modeled with an elastic modulus of 55 kPa and a Poisson's ratio of 0.45 34 . Finally, the artery wall was modeled with an elastic modulus of 450 kPa and a Poisson's ratio of 0.45 23,30 . For the MRI-based model, the nine upper arm parameters Experiment with cardiovascular simulator and phantoms.…”

“…Previous studies regarding oscillometric signals have focused on either the modeling of the blood pressure measurement process [22][23][24][25][26] or the simple hardware simulator that can calibrate an automatic sphygmomanometer [27][28][29][30] to improve automatic sphygmomanometer accuracy. Some research has used the oscillometric signal to investigate cardiovascular-related parameters such as vascular endothelial function 2 .…”