Ventilation control device and breathing mask device with ventilation control device

Abstract

The invention discloses a ventilation control device and a breathing mask device with the ventilation control device. The ventilation control device comprises a cavity with one or more gas conveying openings and mask ventilation openings for being communicated with a breathing mask, and valve assemblies arranged on the gas conveying openings. The valve assemblies are matched with the gas conveyingopenings to form gas inlets and gas outlets. The valve assemblies make the gas inlets communicated with the mask ventilating openings when the pressure in the cavity is smaller than or equal to the barometric pressure and make the gas outlets communicated with the mask ventilation openings when the pressure in the cavity is larger than the barometric pressure. The section area of the gas inlets is larger than the section area of the gas outlets. The gas outlets can keep the pressure in the cavity larger than the barometric pressure during breathing. By means of the ventilation control device,the breathing phase positive pressure function is realized, and the patient discomfort caused by continuous positive pressure is avoided; the ventilation control device does not need to be connectedwith a positive pressure gas supply device or a pipeline or the like in use, and therefore the patient can conveniently move; the positive pressure gas supply device does not need to be carried when the patient goes out.

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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