a device for delivering emergency artificial ventilation by means of a tight-fitting face mask, a *laryngeal mask, or an endotracheal tube (see intubation). It consists of a stiff plastic bag, which is squeezed to deliver its gas contents into the patient’s airway; when the pressure is released, it is reinflated from the atmosphere or an attached oxygen supply. Flow into and out of the bag is controlled by a system of simple valves. With an attached oxygen supply, high concentrations of oxygen can be given.
An industrial lung disease occurring in those who work with bagasse, which is the name given to the broken sugar cane after sugar has been extracted from it. Bagasse, which contains 6 per cent silica, is used in board-making. The inhalation of dust causes an acute lung affection, and subsequently in some cases a chronic lung disease. (See ALVEOLITIS.)... bagassosis
a lens with fine parallel lines (almost invisible striations) across its width, used in various vision tests; for example, to test suppression and abnormal retinal correspondence. [B. Bagolini (20th century), Italian ophthalmologist]... bagolini lens
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