A device for detecting airway reversibility

Abstract

The invention discloses a device for detecting reversibility of an airway. The device comprises a motion sensing game module, a signal acquisition unit and a signal processing display unit, wherein the motion sensing game module comprises a body sensing unit, a control unit, and a motion screen; the body sensing unit acquires motion information of a subject and transmits the motion information to the control unit, the motion screen displays a cartoon child moving at a preset speed to lead the subject to move, and an image of the subject in the motion screen in a moving process keeps a constant distance with the cartoon child until the end of the motion; and the signal acquisition unit respectively acquires respiratory muscle electromyographic signals and airflow signals of the subject before and after a motion sensing game and transmits the signals to the signal processing display unit for processing, and the reversibility of the airway is further judged. According to the invention, a treadmill exercise or contraction of a bronchus induced by inhalation of histamine is replaced with an interesting motion sensing game, and a pulmonary ventilation function is replaced with the respiratory muscle electromyographic signals, so that the problem that part of patients especially preschool children cannot complete bronchial provocation tests is solved.

Description

technical field [0001] The invention relates to the field of airway detection, in particular to a device for detecting airway reversibility. Background technique [0002] The traditional detection of airway reversibility is to stimulate bronchoconstriction by inhaling a small dose of histamine, and then observe the changes in lung function before and after inhaling histamine, especially the changes in forced expiratory volume in the first second. Although pulmonary function testing is a common method of judging airway reversibility, many children and adults with speech impairments and comprehension are often unable to complete this test. [0003] In addition, histamine inhalation also depends on the cooperation of the subjects and operators, and many subjects have false negative results due to their failure to cooperate. For example, due to the stimulation of histamine on the upper airway and the frequent coughing caused by it, the subjects could not tolerate it, and the te...

AI Technical Summary

Problems solved by technology

Although pulmonary function tests are commonly used to determine airway reversibility, many children and adults with speech impairments and comprehension are often unable to complete this test

[0003] In addition, histamine inhalation also depends on the cooperation of the subjects and the operator, and many subjects have false negative results due to their failure to cooperate.

For example, due to the stimulation of histamine on the upper airway and the frequent coughing caused by it, the subjects could not tolerate it, and the test had to be terminated early, resulting in the failure of the test

[0004] Although clinically, treadmill exercise is sometimes used to induce asthma, but when the patient’s movement speed is not coordinated with the running speed of the treadmill, the subject is at risk of falling

Moreover, this inspection is boring, and many children refuse to cooperate, which also causes the inspection to fail.

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