الفهرس 
Historical notes on ventilator developmentOnly 14 pages are availabe for public view
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Abstract
As the field of pediatric critical care is growing, the use of assisted ventilation ontribute substantially to improve outcome in patients with respiratory and non spiratory disorder which need cardiopulmonary support .There is a lot of delivering ethods of ventilatory support as basic and advanced modes of mechanical ventilation.
The delivery of supplemental oxygen may be necessary for correction or prevention
hypoxemia which must be the first aide in critical care unite .Many devices for ministering supplemental oxygen are available as low-flow systems and high-flow stems
Noninvasive ventilation is the delivery of mechanical assisted breathing without acement of an artificial airway such as an endotracheal tube or tracheostomy. It consists noninvasive positive pressure ventilation (NPPV) by two mod:bilevel positive airway ::ure (BIPAP) and continuous positive airway pressure (CPAP).
Ventilator performance of the respiratory cycle and initiation setting. Every ventilator i four basic phases that it must complete in providing a ventilatory cycle to the patient.
phases of a respiratory cycle:” inspire ,end inspiration ,expiration,and begin a new iration. Modes of conventional mechanical ventilation ,Ventilatory support can be according to two general approaches: full ventilatory support (FVS) and partial iy support (PVS).
Modes of Conventional Mechanical ventilation may be classified as volume olled and pressure controlled. This classification stems from the limit variable the t value set for inspiration. The limit variable (pressure, volume) is manipulated to .trol the breath but does not cause inspiration to end. The variable that ends the iratory phase is the cycle variable.