Airway resistance judgment based on diaphragmatic electromyogram
A technology of diaphragm muscle electromyography and airway resistance, which is used in diagnosis, diagnostic recording/measurement, medical science, etc., can solve problems such as difficulty in grasping the essentials of maximal inhalation and exhalation, affecting the reliability of asthma diagnosis, and failure of examinations.
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[0010] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Insert the multiconductor esophageal electrode tube ( figure 1 11) as shown in 11) into the patient's esophagus to record the EMG of the esophageal diaphragm or place the surface electrodes ( figure 1 Middle 13, 14) were placed on the patient's chest body surface to record diaphragm muscle electricity ( figure 1 Middle 15 is the original EMG signal of the diaphragm). Have the subject wear a nose clip ( figure 1 Middle 17), the port is connected to the flow head ( figure 1 Middle 12) carry out oral respiration, and record the respiratory airflow signal 15 . Record and calculate the ratio of the diaphragmatic myoelectricity 16 to the airflow 15 when the patient breathes calmly, reflecting the change of the patient's lower airway resistance.
[0011] The following is an example of the EMG-to-airflow ratio of the diaphragm before and after incr...
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