| 摘要(英) |
Compare to healthy ones, patients with Heart Failure (HF) have more awful ability on Cardiac Output. If we want to discover the problem at early age, monitoring cardiac output is an imperative work. Nevertheless, the medical devices those which could monitor precisely have some inevitable problems. No matter using invasive or non-invasive monitor techniques, both of them will face some challenges.
This study will develop a wearable and non-invasive Electrocardiac-Stethoscope System. By using a digital stethoscope, we measure the single lead ECG signal and PCG signal with capacitive microphone. After filtering, sampling and encoding the both signal through A-D Converter (ADC), the signals are transmitted to microcontroller (MCU). Then, the signal will simultaneously save in microSD card and transmit to APP on smartphone by Bluetooth Low-Energy (BLE) wireless technique. At the end, align S1 peak with R-peak for synchronizing the time series. By calculating time delay between peaks, we will get two important parameter for cardiac output, Pre-Ejection Period (PEP) and Left Ventricular Time (LVET). What’s more, the device can measure lung sound, vascular sound as well, which is able to monitor cardiac and pulmonary function.
The system has not only utilize a non-invasive method, but is also low-cost, small size and wearable. It will also provide lots of merits clinically and personally. |
| 參考文獻 |
參考文獻
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至系統瀏覽論文 (2026-8-14以後開放)
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