cpap machine made in perlong

CPAP continuous positive airway pressure (Continuous Positive Airway Pressure), namely with the mask will continuous positive pressure airflow into the airway. Use this way to oxygen machine called CPAP ventilator. So, what is the working principle of CPAP respirator?
(perlong medical -- S9600 ventilator)
In daily life, when we breathe, intrapulmonary pressure below the atmospheric pressure, air can enter lung, when the two kinds of pressure balance, the suction stop; exhale, intrapulmonary pressure higher than the atmospheric pressure, breath, when intrapulmonary pressure increased continuously, and is equal to atmospheric pressure, breath stop. Application of continuous positive airway pressure, breathe in, there is a pressure to push air into the lungs, expiratory when also the existence of an additional pressure, prevent gas exhaled. The additional pressure on the inspiratory and expiratory all play a role, but no size change, it is called a continuous positive airway pressure.
Sleep apnea occurs is the key obstruction of the upper airway, the main application of the principle of continuous positive airway pressure ventilation in the treatment of sleep apnea is by applying an appropriate pressure to the local upper airway, to prevent its collapse. In addition, increase muscle upper airway dilator activity by high-speed airflow to some local reflex airway stimulation, may also play a role in.
The treatment of obstructive sleep apnea syndrome CPAP machine includes the following parts: a comfortable, lightweight, good elasticity of the nasal mask during sleep in the patient's nose fixed by a headband (not including the mouth, nose mask) with a soft vent pipe is connected with the air pump, the high speed airflow produced by the air pump through a hose into the upper respiratory tract, the formation of a positive pressure in the pharyngeal airway local. Size to an appropriate value regulating pump pressure generated by the collapse of the patient, can prevent the upper airway during sleep, avoid the occurrence of apnea. In addition, in order to alleviate the dry air stimulation of the upper respiratory tract, usually connected to a humidifier in the inspiratory circuit.
CPAP ventilator pressure by cm water column (cmHO) said, like mm Hg (mmHg) to represent the atmospheric pressure, the general CPAP ventilator setting pressure in the range of 4 - 20 cmH2O (0.39 ~ 1960 PA).

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