title: Design of a finger base-type pulse oximeter.
abstract: A pulse oximeter is a common medical instrument used for noninvasively monitoring arterial oxygen saturation (SpO2). Currently, the fingertip-type pulse oximeter is the prevalent type of pulse oximeter used. However, it is inconvenient for long-term monitoring, such as that under motion. In this study, a wearable and wireless finger base-type pulse oximeter was designed and implemented using the tissue optical simulation technique and the Monte Carlo method. The results revealed that a design involving placing the light source at 135°-165° and placing the detector at 75°-90° or 90°-105° yields the optimal conditions for measuring SpO2. Finally, the wearable and wireless finger base-type pulse oximeter was implemented and compared with the commercial fingertip-type pulse oximeter. The experimental results showed that the proposed optimal finger base-type pulse oximeter design can facilitate precise SpO2 measurement.
authors.affiliation: Institute of Imaging and Biomedical Photonics, National Chiao Tung University, Tainan 71150, Taiwan.
authors.forename: Bor-Shyh
authors.initials: BS
authors.lastname: Lin
authors.affiliation: Institute of Imaging and Biomedical Photonics, National Chiao Tung University, Tainan 71150, Taiwan.
authors.forename: Cheng-Yang
authors.initials: CY
authors.lastname: Huang
authors.affiliation: Department of Electronics Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan.
authors.forename: Chien-Yue
authors.initials: CY
authors.lastname: Chen
authors.affiliation: Department of Medical Research, Chi Mei Medical Center, Tainan 71004, Taiwan.
authors.forename: Jiun-Hung
authors.initials: JH
authors.lastname: Lin
mesh_terms: D001785:Blood Gas Monitoring, Transcutaneous / Q000295:instrumentation / Q000379:methods; D005385:Fingers; D006801:Humans; D010100:Oxygen / Q000097:blood*; D059015:Wireless Technology / Q000295:instrumentation*
chemical_list: D010100:Oxygen