| 摘要 |
Provided are a system and method for monitoring the extent of wound infection. The system for monitoring extent of wound infection comprises a monitoring device (1), a bandage main body (2), and a smart sensor (20) arranged on the bandage main body (2). The monitoring device (1) comprises a photodiode (10), a first light source (121) for producing light of a first wavelength, a fiber optic coupler (14), and a processor (16). The smart sensor (20) comprises a first multi-mode optical fiber (201), a second multi-mode optical fiber (203), and a single-mode optical fiber (202); the surface of the single-mode optical fiber (202) is coated with a pH-sensitive membrane (2020) layer. The processor (16) is used for calculating, according to the photocurrent produced by the light of first wavelength illuminating the photodiode (10), the absorption of the light of first wavelength by the pH-sensitive membrane (2020) and according to a preset correlation between pH value and absorption, determining the pH value of a current wound. The processor (16) is also used for determining, according to the preset correlation between the pH value and extent of wound infection, the extent of infection of the current wound. |
