As one of the most common medical diagnosis methods, urinalysis is a highly demanded technique for screening tests or daily monitoring of various diseases. With the rapid development of POC (point-of-care) systems, a convenient house-using urinalysis device is widely needed. However, considering the difference of onboard systems and multiple test indicators in urinalysis, the design of such an intelligent device is still challenging. In this paper, a smartphone-based portable urinalysis system has been developed and applied for the colorimetric analysis of routine urine examination indices using an Android app. By integrating the test paper sensor in the portable device for urinalysis, our system significantly improves the instability of conventional dipstick-based manual colorimetry, and the smartphone application used for color discrimination enhances the accuracy of the visual assessment of sample strips. Using a simple operation approach that takes ∼ 2 min per test, our system can be applied as rapid urinalysis for routine check-ups.

作為最常見的醫學診斷方法，尿液分析是一種用於篩查測試或日常監測各種疾病的高需求技術。隨著POC (point-of-care) 即時醫療系統的快速發展，人們廣泛需要一種方便的家用尿液分析設備。 然而，考慮到機載系統的差異以及尿液分析中的多項測試指標，這樣智能設備的設計仍然具有挑戰性。在本文中，開發了一種基於智能手機的便擕式尿液分析系統，並將其應用於Android程式進行尿 液常規檢查中的指標比色分析。通過在便擕式尿液分析設備中集成試紙傳感器，我們的系統顯著改善了傳統基於試紙的手動比色法的不穩定性，用於顏色辨別的智能手機應用程式提高了樣品條視覺評估的準確性。以簡單的操作方法和每次約 2 min 的測試，我們的系統可應用於尿液的常規檢查和快速分析。