Fully electronically controlled compact ventilator

Abstract

The invention discloses a fully electronically controlled compact breathing machine which comprises a battery, a fan and an air channel device. The fan comprises a box body and a turbine fan centrally arranged in the box body and kept a distance away from the inner wall to form an air cavity, the air channel device comprises a three-way valve driven by a stepping motor and an air channel box, one valve port of the three-way valve is connected with an air outlet hole of the fan, an air inlet channel and an air return channel communicated with the other two valve ports are formed in the air channel box, the air inlet channel is communicated to a vent port through a flow meter, and the air return channel is communicated with the air cavity of the fan. The turbine fan is in form of suspension in a four damping column supporting mode, so that the mechanical vibration of the turbine fan is isolated, the vibration of the fan cannot be transferred outwards, and noise is reduced. In addition, the air channel box is utilized to perform air outlet processing, the effect of intermittently supplying air for the vent port is effectively utilized, and an air inlet pressure is reduced.

Description

technical field [0001] The invention relates to the technical field of ventilators, in particular to an all-electrically controlled compact ventilator. Background technique [0002] At present, non-invasive ventilators are the most common type of ventilators that use motors to drive the air source. Non-invasive ventilators are used for the treatment of respiratory diseases such as sleep apnea syndrome and COPD (chronic obstructive airway disease). The currently popular types of non-invasive ventilators mainly include CPAP (providing stable positive pressure output when the patient breathes), AUTOCPAP (providing positive pressure output to the patient. When the airway resistance of the patient increases and affects normal breathing, the ventilator automatically increases Output pressure until the patient is breathing normally; when the patient is breathing normally, the ventilator will reduce the output pressure to the lower limit pressure to maintain the patient's normal br...

AI Technical Summary

Problems solved by technology

[0005] 1. When the motor is working, it will generate strong noise due to the speed of thousands to tens of thousands of revolutions per minute

[0006] 2. Poor heat dissipation of the motor leads to poor performance, and there are potential safety hazards in the setting

[0007] 3. Because the air circuit requires intermittent air supply, the motor starts and shuts down frequently, resulting in increased energy consumption and noise

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