The utility model relates to a respiratory aid device, which is used to solve the problem that the physical therapy is frequently used to cause subcutaneous hemorrhage of the buckle hit part of a patient, or the wound is involved to cause pain.The system comprises: a coating body,Having an inner surface and an inner air bag；A pressure sensing unit,It is attached to the inner surface and aligned with the airbag,The pressure sensing unit is used for sensing and obtaining a pressure value；A charging and discharging module,The air bag is communicated with a catheter；And a processing unit,Analyze whether the pressure sensed by the pressure sensing unit is equal to an initial value,If the analysis result is yes,Control the charging and discharging module to inflate the airbag,Raise the pressure value to a pressure threshold,And when the pressure value is equal to the pressure threshold,Control the inflation and deflation module to deflate the airbag,Lower the pressure value to the initial value.一種呼吸輔助裝置，用以解決習知物理治療法易造成病患扣擊部位皮下出血，或傷口牽扯造成疼痛的問題。係包含：一包覆體，具有一內表面且內部具有一氣囊；一壓力感測單元，結合於該內表面且對位於該氣囊，該壓力感測單元用以感測取得一壓力值；一充放氣模組，以導管連通該氣囊；及一處理單元，分析該壓力感測單元所感測到的壓力值是否等於一初始值，若分析結果為是，控制該充放氣模組對該氣囊充氣，使該壓力值上升至一壓力閾值，並於該壓力值等於該壓力閾值時，控制該充放氣模組對該氣囊洩氣，使該壓力值下降至該初始值。
