A wireless tourniquet device and system, the wireless tourniquet device can communicate wirelessly with a back-end analysis device.The wireless tourniquet device comprises a compression mechanism for sheathing on the limbs, and an acoustic wave sensing module, a warning module, a signal processing module and a first wireless communication module respectively installed on the compression mechanism.The signal processing module can analyze the blood flow smoothness corresponding to the blood flow sound signal output by the sound wave sensing module, drive the warning module to send the corresponding warning message, and drive the first wireless communication module to wirelessly transmit the digital blood flow sound signal and blood flow smoothness to the back-end analysis device.Through the design of wireless tourniquet device, the data can be transmitted wirelessly, and the data related to hemostasis can be output to the back-end analysis device for further analysis.一種無線止血帶裝置及系統，該無線止血帶裝置可與一後端分析裝置無線通訊。無線止血帶裝置包含一用以套設於肢體上的加壓機構，及分別安裝於加壓機構的一音波感測模組、一警示模組、一訊號處理模組與第一無線通訊模組。訊號處理模組可分析音波感測模組輸出之血流音波訊號所對應的血流順暢度，並驅使警示模組發出對應的提醒訊息，以及驅使第一無線通訊模組將數位血流音波訊號與血流順暢度無線傳送至後端分析裝置。透過該無線止血帶裝置可無線傳送資料的設計，可更方便將止血相關資料輸出至後端分析裝置以供進一步分析。
