内在的PPG-ECG合用于准确和低功率的血压监测
Sitong Chen1, Hua Luo2, Zhentao Yao2
1Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|March 3, 2026
概括
这项研究引入了一种新的方法,用于通过合并光囊电心电图 (PPG-ECG) 信号来持续监测血压. 这种方法提高了准确性,并减少了可穿戴心血管健康设备的功耗.
科学领域:
- 生物医学工程 生物医学工程
- 心血管技术的心血管技术
- 可穿戴的健康设备
背景情况:
- 持续的血压 (BP) 监测对于心血管疾病管理至关重要.
- 传统的使用脉冲传输时间 (PTT) 的BP监测通常涉及多个信号,导致同步错误和功耗增加.
- 现有的多信号BP监测系统在准确性,效率和系统复杂性方面面临挑战.
研究的目的:
- 开发一个内在的信号同步策略,以准确和高效的BP估计.
- 克服传统的多信号BP监测方法的局限性.
- 为了创建一个简化的,低功耗的可穿戴传感器补丁,用于连续的BP监测.
主要方法:
- 通过将光电心电图 (PPG) 和心电图 (ECG) 信号合成一个统一的波形,提出了一种内在信号同步策略.
- 根据这个原则开发了一个紧,轻量级的胸部可穿戴传感器贴片.
- 在静态和动态条件下评估BP测量准确性.
主要成果:
- 实现了内在同步,将脉冲传输时间 (PTT) 误差降低到不到15ms,检测率超过98%.
- 由于数据负载减少,系统功耗下降了43.75%.
- 报告的高BP测量精度 (ME ≤5 mmHg,STD ≤8 mmHg) 在不同的场景.
结论:
- 拟议的PPG-ECG信号合策略简化了BP监测设备的设计和制造.
- 这种内在的同步方法显著提高了可穿戴式BP监测器的准确性,能源效率和运行寿命.
- 开发的传感器贴片为长期,持续的心血管健康评估提供了有希望的解决方案.
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