A therapeutic device for improving the respiration of a patient, the device comprising a curved or kinked pipe section, into the first end of which a mouthpiece provided with a passage is disposed, a holding peg inserted into a second end of the pipe section and connected thereto, the holding peg having a passage disposed therein and being insertable into the inside of the pipe section, and a flexible hose attached to the holding peg inside the pipe section, a free end of the hose moveable freely in an area of the mouthpiece between an inner wall of the pipe section, such that the therapeutic device can be used during inhalation and exhalation, the device (1) enabling the patient to train his respiratory passageways both during exhalation and inhalation, thereby to improve the effectiveness of respiration.
