منابع مشابه
Mechanical Ventilation and Equipment
Mechanical ventilation systems for controlling conditions in individual zones can move a constant or variable supply of conditioned air to handle all or some of the heating and cooling loads. They are classified as all-air, air-water, and all-water systems. All-air systems include single-duct, dual-duct and multizone. The systems can be designed to operate at Constant Air Volume (CAV) or Variab...
متن کاملN Equipment and Techniques for Noninvasive Ventilation
livery of mechanical ventilation to patients with respiratory failure without the requirement of an artificial airway. The key change that led to the recent increase in the use of this technique occurred in the early 1980s with the introduction of the nasal continuous positive airway pressure mask for the treatment of obstructive sleep apnea. Studies published in the 1990s that evaluated the ef...
متن کاملEffect of ventilation equipment on imposed work of breathing.
OBJECTIVE To determine the imposed work of different ventilation systems at 3 levels of pressure support. DESIGN Laboratory study. SETTING Teaching hospital respiratory laboratory. PARTICIPANTS Healthy, human volunteers. INTERVENTIONS Measurement of imposed work of breathing (WOB(i)) in six ventilators with alteration of ventilatory settings, humidification device, and triggering mechan...
متن کاملOut-of-hospital noninvasive ventilation: epidemiology, technology and equipment
Noninvasive ventilation has been utilized successfully in the pre- and out-of-hospital settings for a variety of disorders, including respiratory distress syndrome in neonates, neurologic and pulmonary diseases in infants and children, and heart failure as well as chronic obstructive pulmonary disease in adults. A variety of interfaces as well as mechanical positive pressure devices have been u...
متن کاملPositive-pressure ventilation equipment for mass casualty respiratory failure.
In the event of an influenza pandemic, patients with severe acute respiratory failure (ARF) due to influenza will require positive-pressure ventilation (PPV) in order to survive. In countries with widely available critical care services, PPV is delivered almost exclusively through use of full-feature mechanical ventilators in intensive care units (ICUs) or specialized hospital wards. But the su...
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ژورنال
عنوان ژورنال: BMJ
سال: 1968
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.5598.176-b