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The bag valve mask concept was developed in 1956 by the German engineer Holger Hesse and his partner, Danish anaesthetist Henning Ruben, following their initial work on a suction pump. [3] Hesse's company was later renamed Ambu A/S, which has manufactured and marketed the device since 1956. An Ambu bag is a self-inflating bag resuscitator from ...
A resuscitator is a device using positive pressure to inflate the lungs of an unconscious person who is not breathing, in order to keep them oxygenated and alive. [citation needed] There are three basic types: a manual version (also known as a bag valve mask) consisting of a mask and a large hand-squeezed plastic bulb using ambient air, or with supplemental oxygen from a high-pressure tank.
The bag-valve-mask device has a self-inflating bag with a soft mask that rests on the face. When the bag is connected to an oxygen supply, the patient will receive 60 to 100% of inspired oxygen. The purpose of bag-valve-mask is to provide adequate temporary ventilation and allow the body to achieve airway control by itself.
bag valve mask A bag valve mask is a hand-operated device used to provide positive pressure ventilation to patients who are not spontaneously breathing or not breathing sufficiently. bilevel positive airway pressure BiPAP Breathing assist apparatus using a higher positive pressure on inspiration and lower positive pressure on expiration.
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Ambu bag Holger Hesse (1900–1967) was a German engineer . Together with his partner, Danish anesthetist Henning Ruben, he invented the world's first non-electric, self-inflating resuscitator , the Ambu bag , in 1956.