用于生命体征监测的光电容积脉搏波描记术设备设计研究。

Appel Anneri, Theart Rensu P

Institute of Biomedical Engineering, Stellenbosch University, Matieland 7600, South Africa.

Department of Electrical and Electronic Engineering, Stellenbosch University, Matieland 7600, South Africa.

Sensors (Basel). 2025 Mar 18;25(6):1875. doi: 10.3390/s25061875.

There exists a distinct lack of publicly available literature addressing the most effective hardware design for photoplethysmography (PPG) devices for clinical and domestic applications. In this article, this problem was addressed by investigating the hardware design configuration of a PPG device, with particular emphasis on the light source wavelength, light source brightness, number of light sources, photodetector lens shape, and sensor-to-skin contact pressure. A participant study was conducted to collect cardiovascular metric data from 110 participants with varying skin tones, which was used to determine the most promising hardware configuration of the PPG device. It was concluded that the device had little bias to skin tone, with only a 3.82 dB variance over all the skin tones tested.

目前明显缺乏关于用于临床和家庭应用的光电容积脉搏波描记法（PPG）设备的最有效硬件设计的公开文献。在本文中，通过研究PPG设备的硬件设计配置来解决这个问题，特别强调光源波长、光源亮度、光源数量、光电探测器透镜形状以及传感器与皮肤的接触压力。进行了一项参与者研究，以收集110名不同肤色参与者的心血管指标数据，这些数据用于确定PPG设备最有前景的硬件配置。得出的结论是，该设备对肤色的偏差很小，在所有测试的肤色上方差仅为3.82分贝。