机械呼吸是借助于人工呼吸器机械的力量把带有一定氧浓度的气体送入肺泡,以增加通气量,改善通气功能,起到一个机械通气的作用。目前已广泛的应用于呼吸功能不全的病人身上,它不仅作为一种抢救工具,而且也作为一种治疗工具,临床麻醉上也用作呼吸管理的工具。一、呼吸器类型呼吸器的类型繁多,现按吸气相切换为呼气相的方式不同可分为预定容量型和预定压力型两种。 (一)定量型呼吸器:定量型呼吸器的结构一般以电动马达带动气囊将预定容量的气体以正压送出后而转入呼气期,经过一定时间,呼吸器内气体充满预定量时又再转入吸 Mechanical respiration is by means of mechanical respirator mechanical force with a certain concentration of oxygen into the alveolar gas to increase ventilation, improve ventilation, play a role in mechanical ventilation. Has been widely used in patients with respiratory insufficiency, it not only as a rescue tool, but also as a treatment tool, clinical anesthesia is also used as a tool for respiratory management. First, the type of respirator There are many types of respirators, now according to the inspiratory phase to the expiratory phase different ways can be divided into two kinds of predetermined capacity type and pressure type. (A) of the quantitative respirator: quantitative respirator structure generally driven by the electric motor airbag to the predetermined volume of gas sent to the expiratory after a positive pressure into the expiratory period, after a certain period of time, the gas inside the respirator filled with a predetermined amount of time Transfer to suction again