SMART SENSOR USED FOR MEASURING EXTENT OF INFECTION OF WOUND, AND METHOD FOR FABRICATING SAME

摘要

Provided are a smart sensor (20) used for measuring the extent of infection of a wound, and a method for fabrication thereof. 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 single-mode optical fiber (202) is located between the first multi-mode optical fiber (201) and the second multi-mode optical fiber (203) to form a linear connection. The surface of the single-mode optical fiber (202) is coated with a pH-sensitive membrane (2020) layer comprising a pH indicator; the pH-sensitive membrane (2020) measures the pH value of a skin wound and, according to a change in the color of the pH-sensitive membrane (2020) caused by a change in the pH value of the skin wound, absorbs light of a first wavelength. The second multi-mode optical fiber (203) sends the light of a first wavelength, absorbed by the pH-sensitive membrane (2020) in the single-mode optical fiber (202), to a monitoring device (1) to determine the extent of infection of the skin wound. The smart sensor (20) measures the extent of infection of a wound so that a doctor or patient may promptly understand the infection of a wound, and is conducive to a doctor or patient selecting an appropriate treatment regimen according to the monitored situation.