Novel Method for Accurate Optical Hydration Measurement Using Heartbeat-Based Analysis with Melanin Correction and Water-to-Blood Ratio Scaling

原文（中国語）

Accurate hydration measurement is crucial for health. This patent presents a non-invasive method for quantifying hydration in tissues and bloodstream using heartbeat-based optical density (OD) analysis. By employing LEDs at specific wavelengths for water and blood OD measurements and correcting for melanin interference, this method calculates hydration as the ratio of water OD to blood OD. The technique offers precise, rapid, and minimally invasive hydration assessment, addressing traditional method limitations. This approach is suitable for wearable or stand-alone devices, enhancing health monitoring and personalized hydration strategies.