Exhaust control method and breathing auxiliary apparatus applying same

Abstract

The invention discloses an exhaust control method. The exhaust control method comprises following steps: supplying air to one surface cover of the breathing auxiliary apparatus; detecting the breathing state of a user wearing the surface cover; and decreasing an opening area of an exhaust structure of the surface cover through a driving unit of the breathing auxiliary apparatus when the user inhales and increasing the opening area of the exhaust structure through the driving unit when the user exhales. The invention further provides other exhaust control methods and a breathing auxiliary apparatus. The exhaust control method and the breathing auxiliary apparatus applying the same helpeffectively decrease noise caused by rapid speed change of a host.

Description

technical field [0001] The invention relates to an exhaust gas control method and a breathing assistance device using the same. Background technique [0002] Continuous Positive Airway Pressure (CPAP) is used to assist the breathing of users or patients, especially for the treatment of Obstructive Sleep Apnea (OSA). The continuous positive pressure breathing aid is currently recognized by the medical community as having the best curative effect on such respiratory-related diseases. [0003] Generally speaking, the existing continuous positive pressure breathing aids will output gas (such as: oxygen) in the inhale mode (inhale mode), and supply it to the user with a fixed air pressure, so as to increase the pressure in the user's airway , and then send the gas into the user's lungs; on the contrary, in the exhale mode (exhale mode), the existing continuous positive pressure breathing aid stops outputting gas, and passes through the vent hole on the mask to benefit the lungs....

AI Technical Summary

Problems solved by technology

However, when the user is in a sleep state, he does not breathe with a fixed inspiratory pressure all the time, so when the user uses the continuous positive pressure breathing aid in a sleep state, the situation of breathing difficulty often occurs. Therefore, it is necessary to cooperate with the breathing situation of the user during sleep, and other people are responsible for controlling the pressure provided by the continuous positive pressure breathing aid in the inhalation mode, so that the existing continuous positive pressure breathing aid will cause extreme inconvenience in use. big inconvenience

[0004] Furthermore, the vent hole in the mask lock of the existing continuous positive pressure breathing aid will cause the wind pressure to decrease when inhaling, and the wind pressure will increase when the user exhales, thereby increasing the difficulty of wind pressure control

[0005] Although it is possible to adjust the air volume supplied by the main unit (such as a motor) by detecting the user’s breathing condition, however, when the user’s breathing condition changes rapidly, the main unit must cooperate with the rapid speed change, which will not only Accelerate the wear and tear of the host, and produce excessive noise, causing confusion and inconvenience to users

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