Novel Wearable and Wireless Ring-Type Pulse Oximeter with Multi-Detectors

Sensors

Cheng-Yang Huang¹  Ming-Che Chan¹  Chien-Yue Chen² 

[1] Institute of Imaging and Biomedical Photonics, National Chiao Tung University, Tainan 711, Taiwan; E-Mails:;Department of Electronics Engineering, National Yunlin University of Science and Technology, Yunlin 640, Taiwan; E-Mail:

关键词: pulse oximeter;    arterial oxygen saturation;    finger base;    optical human tissue simulation;    multi-detector;   

DOI  :  10.3390/s140917586

来源: mdpi

【 摘 要 】

The pulse oximeter is a popular instrument to monitor the arterial oxygen saturation (SPO₂). Although a fingertip-type pulse oximeter is the mainstream one on the market at present, it is still inconvenient for long-term monitoring, in particular, with respect to motion. Therefore, the development of a wearable pulse oximeter, such as a finger base-type pulse oximeter, can effectively solve the above issue. However, the tissue structure of the finger base is complex, and there is lack of detailed information on the effect of the light source and detector placement on measuring SPO₂. In this study, the practicability of a ring-type pulse oximeter with a multi-detector was investigated by optical human tissue simulation. The optimal design of a ring-type pulse oximeter that can provide the best efficiency of measuring SPO₂ was discussed. The efficiency of ring-type pulse oximeters with a single detector and a multi-detector was also discussed. Finally, a wearable and wireless ring-type pulse oximeter was also implemented to validate the simulation results and was compared with the commercial fingertip-type pulse oximeter.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.