A portable ventilator

Abstract

A portable ventilator, comprising a casing, the casing is provided with a fan box (101), a shut-off device (108) and a control device (113), and the fan (8) is installed on the fan box (101) through a noise reduction device. ), the air outlet of the fan is connected to the internal breathing pipe (107), and the internal breathing pipe (107) is provided with a shut-off device (108). device (113), the casing is also provided with a humidifying device (106), the air outlet of the intercepting device (108) is connected to the humidifying device (106) through an internal breathing tube (107), and the air outlet of the humidifying device is connected to Breathing tube (104) and mask (105). The ventilator has low noise, which is convenient for accurate detection of breathing gas parameters, and can realize 360° anti-backflow.

Description

technical field

[0001] The invention relates to the field of ventilators, in particular to a portable ventilator. Background technique

[0002] Home sleep ventilators are mainly used in personal homes, sleep centers and small clinics, mainly for patients with apnea syndrome. The ventilator relies on the fan to pressurize the gas in the pipeline. During the working process, the fan will inevitably make noise. Because the patient's tolerance threshold for sound is lowered, and the single repeated stimulation of these sounds to the patient makes the patient indistinguishable. Day and night, so the adverse stimulation of the ventilator noise to the patient is very large. How to control the noise to a minimum and not affect the patient's sleep is a major issue that every ventilator manufacturer has to face.

[0003] Fan noise is mainly divided into two types, one is the wind whistle generated by the rapid rotation of the fan and the friction between the blades and the air, and ...

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