A device for detecting fistula stenosis is provided. The device includes a physiological signal sensor, an acoustic receiver and a processing circuit. The physiological signal sensor is configured for providing a physiological signal of a user. The acoustic receiver is configured for detecting a sound from a fistula of the user to generate a sound signal. The processing circuit is configured for providing a degree of fistula stenosis according to the physiological signal of the user and the sound signal.一種偵測瘻管狹窄之裝置。上述裝置包括一生理信號感測器、一聲波接收器以及一處理電路。上述生理信號感測器提供一使用者之一生理信號。上述聲波接收器偵測來自上述使用者之一瘻管的聲音,以產生一聲音信號。上述處理電路根據上述使用者之上述生理信號以及上述聲音信號而提供一瘻管狹窄程度。100‧‧‧裝置110‧‧‧生理信號感測器120‧‧‧聲波接收器130‧‧‧處理電路140‧‧‧無線模組150‧‧‧天線160‧‧‧記憶體170‧‧‧顯示器
