Ventilation control device and breathing mask device having the same

Abstract

A ventilation control apparatus (200), and a breathing mask device (20) provided with the ventilation control apparatus (200). The ventilation control apparatus (200) comprises a cavity (210) and a valve assembly (220). The cavity (210) is provided with an air delivery port (211) and a mask ventilation port (212) which are in communication with one another, the mask ventilation port (212) being used for being in communication with the breathing mask (20). The valve assembly (220) is provided with an air inlet channel and an air discharge channel in communication with the cavity (210) via the air delivery port (211). The valve assembly (220) is configured to connect the air inlet channel when the pressure (P1) within the cavity (210) is less than or equal to the atmospheric pressure (P0), and connect the air discharge channel when the difference (ΔP) between the pressure (P1) within the cavity (210) and the atmospheric pressure (P0) is greater than or equal to a predetermined value. The ventilation control apparatus (200) implements an exhalation phase positive pressure function, and prevents patient discomfort caused by continuous positive pressure. A positive pressure air supply apparatus (such as a CPAP breathing machine) and a pipeline etc. need not be connected during use, thereby facilitating patient movement, and the positive pressure air supply apparatus need not be carried when going out. A patient may carry the breathing mask (20) provided with the ventilation control apparatus (200) at any time for treatment. In addition, the ventilation control apparatus (200) is small in size, convenient to carry, and low in cost.

Description

technical field [0001] The invention relates to the technical field of breathing masks, in particular to a ventilation control device for a breathing mask and a breathing mask equipment with the ventilation control device. Background technique [0002] At present, the methods for treating obstructive sleep apnea-hypopnea syndrome (OSAHS) mainly include surgery, oral appliance and continuous positive airway pressure (CPAP). [0003] The most commonly used surgical method is uvulopalatopharyngoplasty and its modified operation, which is used for upper airway oropharynx obstruction (including hypertrophy of pharyngeal mucosal tissue, narrow pharyngeal cavity, uvula hypertrophy, low soft palate, tonsil hypertrophy) ) and apnea-hypopnea index (AHI) <20 times / hour. Due to the need for surgery, this method has low patient acceptance, and no matter how long the surgical tissue is, it will cause recurrence of the disease, and it is impossible to perform another operation afterwar...

AI Technical Summary

Problems solved by technology

The disadvantages of continuous positive pressure ventilation are: continuous positive pressure will cause discomfort to the patient, and some patients cannot accept it; the connection between the pipeline and the ventilator restricts the patient's nighttime activities, and the compliance is low; the CPAP ventilator is inconvenient to carry and the cost is high

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