2012年9月16日星期日

What is the principle of the pediatric ventilator (CPAP)?

 CPAP stands for "continuous positive airway pressure ". CPAP ventilation system also has a few other names were called: pediatric ventilator, neonatal ventilator, infant ventilator, noninvasive pediatric ventilator in our lives when we inhale, the lungs pressure lower than atmospheric pressure, air flow that enters the lungs, when the balance of the two kinds of pressure, suction stop; breath, pulmonary pressure higher than atmospheric pressure, the gas exhaled intrapulmonary pressure continuously increased, and equal to the atmospheric pressure, breath suspended. use of continuous positive airway pressure ventilation, inspiratory pressure for the gas into the lungs, exhale also exists - additional pressure, prevent exhaled gas works of this additional pressure in the inspiratory and expiratory phase, and no change in size, so called continuous positive airway pressure.
CPAP breathing machine to treat sleep apnea syndrome, including the following parts: a comfortable, lightweight, resilient nasal mask sleep through the headband fixed in a patient's nose, nasal mask connected to a flexible air ducts and air pump connected air pump to produce the high-speed air flow through the hose into the upper respiratory tract, breathed Road topical form a positive pressure. Adjust pressure air pump size to an appropriate value to patients to prevent the collapse of the upper airway during sleep, to avoid the occurrence of apnea. Furthermore, in order to reduce the dry air pair respiratory stimulation, typically connected in the breathing circuit a humidifier. The pressure of the CPAP machine cm water column, like atmospheric pressure expressed in millimeters of mercury CPAP machine set pressure range of 4-20 cm of water.
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Article : From Perlong medical (http://www.pl999.net/)
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