A finger-clamp type dual-wavelength optical detection structure for non-invasive blood glucose detection
By optimizing the design of the finger clip optical detection structure, the problems of unstable finger position, easy interference of the optical path by ambient light, and unstable clamping pressure in non-invasive blood glucose detection have been solved, realizing stable dual-wavelength photoplethysmography signal acquisition, which is suitable for non-invasive blood glucose detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YISHAN MEDICAL IND MANAGEMENT GRP CO LTD
- Filing Date
- 2026-05-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing finger clip optical detection structures have problems in non-invasive blood glucose detection, such as unstable finger position, susceptibility of the optical path to interference from ambient light, unstable clamping pressure, and unreasonable installation position of dual-wavelength components, which lead to unstable dual-wavelength photoplethysmography (PPG) signals.
A finger-clamp dual-wavelength optical detection structure was designed, including an upper clamping part, a lower support part, an elastic connecting part, a dual-wavelength light-emitting component, a photoelectric receiving component, a finger positioning structure, and a light-shielding structure. By limiting the finger position, reducing ambient light interference, stabilizing clamping pressure, and optimizing the component installation position, a transmissive dual-wavelength detection optical path is formed.
It improves the consistency of finger position, reduces ambient light interference, stabilizes clamping pressure, ensures the acquisition quality of dual-wavelength signals, and provides stable dual-wavelength photoplethysmography (PPG) signals for subsequent processing.
Smart Images
Figure CN122398291A_ABST