Simulator Tekanan Darah: Minimalisasi Pengaruh Laju Inflasi dan Deflasi Terhadap Simulasi Osilasi

Abstract

ABSTRAKSimulator tekanan darah biasa digunakan sebagai nilai referensi dalam mengevaluasi tensimeter otomatis (NIBP monitor). Penelitian sebelumnya menunjukkan bahwa simulator tekanan darah dapat dibuat dengan menggunakan micro air pump berbasis motor dc sebagai aktuator. Namun, hasil simulasi yang dihasilkan berbeda untuk setiap merek tensimeter. Hasil analisa menunjukkan bahwa laju inflasi dan deflasi yang berbeda mempengaruhi karakteristik simulasi. Studi ini bertujuan untuk mengembangkan firmware simulator baru berdasarkan nilai pulse width modulation (PWM) dan gradien inflasi-deflasi untuk meminimalkan pengaruh tersebut, sehingga simulator dapat memberikan hasil yang sama untuk berbagai jenis dan merek NIBP monitor. Validasi dengan simulator referensi dan evaluasi dalam kondisi statis dan dinamis menunjukkan simulator yang dikembangkan cukup andal untuk melakukan pemeriksaan awal, termasuk evaluasi pengulangan hasil tensimeter otomatis.Kata kunci: NIBP monitor, PWM, NIBP simulator, gelombang osilasi, lajuinflasi, laju deflasi ABSTRACTBlood pressure simulators are commonly used as reference values in evaluating NIBP (noninvasive blood pressure) monitors. Prior research shows that an NIBP simulator can be made using dc motor based micro air pump as the actuator. However, the simulator yield different results for different brands of NIBP monitor. The analysis result showed that inflation/deflation rates do affect the simulation’s characteristic. This research aims to develop a new simulator firmware based on pulse width modulation (PWM) values and rising-falling slope to minimize the corresponding effect so that the developed simulator could generate the same result for various types and brands of NIBP monitor. Validation using a reference simulator and evaluation in static and dynamic conditions showed that the developed simulator is reliable enough to do a quick pre-checks, including assessing the repeatability of NIBP monitors.Keywords: NIBP Monitor, PWM, NIBP Simulator, Oscillometric Waveform, Inflation Rate, Deflation Rate

ECG and NIBP Simulators in One Device Display on TFT Nextion

“…This research was compared with the research of Nico Antonio Santoso et al who conducted research on the NIBP simulator which had a deficiency in the 60/30 setting with an error of 6.67%, whereas in this study at the 60/30 setting the resulting error was 5.64% which is smaller than Antonio's research [15]. According the research by A Darwongso et al, a blood pressure simulator was developed using the MPX5100 pressure sensor, while in my research using the MPX5050 pressure sensor where the resulting values are more accurate [17]. Similar to research conducted by A. Aditya et al This study aims to measure blood pressure using a noninvasive approach, particularly the oscillometry method [23].…”

“…The identified error, although relatively small, indicates the presence of minor inaccuracies in the blood pressure simulation process. It is crucial to address this error to ensure the reliability and accuracy of the simulator's output [17] [18] [19] . In 2017, N. Shahid conducted research with the title Comparative Analysis and Accuracy of a Devised Automated Non Invasive Blood Pressure Monitor Based on Oscillometric Method.…”