Development of a Three-Wavelength Brain Tissue Oxygen Monitoring System Based on Near Infrared Spectrum

• Published in: Zhongguo yi liao qi xie za zhi Vol. 48; no. 1; p. 26
• Main Authors: Li, Zexi, Li, Hanlin, Yin, Qi, Cai, Shijie, Ye, Jilun, Zhang, Xu, Yu, Hui, Gou, Dahai
• Format: Journal Article
• Language: Chinese
• Published: China 30.01.2024
• Subjects: near infrared spectrum; Lambert-Beer law; cerebral blood
• ISSN: 1671-7104
• DOI: 10.3969/j.issn.1671-7104.230207

In the past 20 years, near infrared spectrum technology has been widely used in human body monitoring due to its non-invasive and real-time characteristics. Oxygen, as the main metabolic substance of the human body, is consumed the most in brain tissue. In order to prevent complications caused by a decrease in brain tissue oxygen during treatment, the patient's brain tissue blood oxygen saturation needs to be monitored in real time. Currently, most of the clinically used non-invasive cerebral blood oxygen detection equipments use dual wavelengths. Other substances on the detection path will cause errors in the measurement results. Therefore, this article proposes a three-wavelength method based on the basic principle of non-invasive monitoring of cerebral blood oxygen using near-infrared spectrum. The brain tissue oxygen saturation monitoring method of detecting light sources was initially verified through the built system, laying the foundation for subsequent system engineering.