A medical therapy unit with a protection mechanism is provided. The medical therapy unit includes a main body, an emitter, and at least a sensor. The emitter is disposed in the main body, and the sensor, connected to the main body, is extended in a direction away from the emitter. A predetermined distance between the distal end of the sensor and the emitter is defined. While an object is located in the predetermined distance, the sensor transmits a signal.本發明係提供一種醫療儀器,包括:一醫療儀器本體、一發射器、及至少一偵測裝置。發射器係設置於醫療儀器本體,偵測裝置係連結於醫療儀器本體,並朝遠離發射器之方向延伸。其中,偵測裝置之末端與發射器相距一既定距離,當一物體位於既定距離內時,偵測裝置送出一訊號。20...支撐架23...承接結構23a...承接結構前端24...固定件100...醫療儀器本體110...殼體120...基板130...防護件140...轉接件200...發射器250...照明裝置300...偵測裝置320...接觸端
