使用单个低成本相对湿度传感器持续测量关键呼吸系统参数:评估研究
Fabrice Vaussenat1, Abhiroop Bhattacharya1, Julie Payette1
1Department of Electrical Engineering, École de Technologie Supérieure, Montreal, QC, Canada.
使用相对湿度传感器 (RHS) 的新可穿戴设备准确测量了诸如潮体积和呼吸速率等呼吸系统参数. 这种低成本的便携式解决方案为监测肺部健康和管理呼吸系统疾病提供了可行的替代方案.
科学领域:
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 精确的,便携式呼吸系统监测对于管理慢性阻塞性肺部疾病 (COPD),喘,睡眠呼吸暂停和重症监护室通风至关重要.
- 现有的解决方案往往昂贵,缺乏便携性,阻碍了广泛使用.
研究的目的:
- 开发一种使用相对湿度传感器 (RHS) 的新型,无处方的便携式呼吸道测量装置.
- 实现成本大约低于当前行业标准的10倍,同时保持准确性.
主要方法:
- 开发了一个可穿戴设备,采用商用Bosch BME280 RHS.
- 整合了RHS与pneumotach (PNT) 黄金标准设备,通过Arduino和蓝牙低能获取数据.
- 在7名健康参与者中评估了设备的准确性和效率,比较呼吸周期,呼吸率和潮体积测量与PNT,使用ANOVA和Bland-Altman分析.
主要成果:
- 通过ANOVA,RHS装置显示了高的P值 (呼吸体积为0.68,呼吸速率为0.89),表明在仪器误差范围内与PNT标准相等.
- 布兰德-阿尔特曼分析显示了小偏差 (潮体积为0.03,呼吸速率为0.018) 与狭窄的协议边界.
- 通过直接将RHS设备连接到手术口罩,可以进行持续的肺体积监测.
结论:
- 拟议的可穿戴RHS设备是一种可行的,低成本的医疗工具,用于肺的参数测量.
- 这项技术可以帮助预防和预测肺部疾病的进展.
- 鼓励进一步研究RHS用于肺部健康监测的应用.
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