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超低成本的机械智能手机附件用于无校准血压测量
Yinan Xuan1,2, Colin Barry3,4, Jessica De Souza3,4
1Electrical and Computer Engineering Department, UC San Diego, 9500 Gilman Dr., La Jolla, CA, 92093, USA. yxuan@ucsd.edu.
Scientific reports
|May 29, 2023
概括
我们开发了BPClip,这是一个超低成本的智能手机附件,用于使用指尖振荡计在家监测血压. 这种创新的设备可以提供准确的血压读数,而不需要手套或专用手机传感器.
科学领域:
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
- 医疗卫生技术 技术 技术
背景情况:
- 传统的血压计通常依赖于重的手,限制了家庭使用的便利性.
- 现有的无袖方法可能需要用户特定的校准或专门的硬件,从而阻碍了可访问性.
- 准确且负担得起的血压监测对于管理高血压和心血管健康至关重要.
研究的目的:
- 推出BPClip,这是一种新的,超低成本的设备,可以通过智能手机在家进行血压测量.
- 为了验证使用手指尖振荡计与智能手机摄像机用于血压估计的可行性.
- 为了证明传统的袖子式血压计的经济有效的替代品.
主要方法:
- 开发了BPClip,这是一个带有弹加载机制和针孔投影的塑料片.
- 使用智能手机摄像头和闪光灯捕捉针孔大小和亮度波动在指尖.
- 应用了振荡计的原理,以将压力和亮度的针孔编码与动脉脉冲幅相关联.
- 在29名参与者中验证了该系统,将结果与已知的血压测量技术进行了比较.
主要成果:
- BPClip系统的平均绝对误差为8.72 mmHg,用于静缩血压和5.49 mmHg,用于静缩血压.
- 在没有袖口式校准或专用智能手机传感器的情况下证明了可行性.
- 预计材料成本低至每单位0.80美元,比目前的显示器便宜得多.
结论:
- BPClip提供了一个有前途的,超低成本的解决方案,用于使用智能手机在家方便地监测血压.
- 这项技术绕过了传统袖口和复杂的校准方法的需求.
- 这项创新有可能显著提高血压管理工具的可访问性和可负担性.
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