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The machine is commonly used together with a mechanical ventilator, breathing system, suction equipment, and patient monitoring devices; strictly speaking, the term "anaesthetic machine" refers only to the component which generates the gas flow, but modern machines usually integrate all these devices into one combined freestanding unit, which ...
General anesthesia does not always require the anesthetic machine, tested daily, as basic equipment. Anesthesia machines may differ in appearance, size and degree of sophistication but generally speaking, they consist of sections for: ventilation; Peripheral Nerve Stimulator; space for monitoring equipment; accessories; storage space; worktop
Anesthesia is a combination of the endpoints (discussed above) that are reached by drugs acting on different but overlapping sites in the central nervous system. General anesthesia (as opposed to sedation or regional anesthesia) has three main goals: lack of movement , unconsciousness, and blunting of the stress response. In the early days of ...
General anaesthesia (UK) or general anesthesia (US) is medically induced loss of consciousness that renders a patient unarousable even by painful stimuli. [5] It is achieved through medications, which can be injected or inhaled, often with an analgesic and neuromuscular blocking agent .
Ventilators may be computerized microprocessor-controlled machines, but patients can also be ventilated with a simple, hand-operated bag valve mask. Ventilators are chiefly used in intensive-care medicine, home care, and emergency medicine (as standalone units) and in anesthesiology (as a component of an anesthesia machine).
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The adjustable pressure-limiting valve on a General Electric Datex-Ohmeda Aisys anaesthetic machine, with pressure gradations shown in centimetres of water An adjustable pressure-limiting valve (commonly abbreviated to APL valve , and also referred to as an expiratory valve , relief valve or spill valve ) is a type of flow control valve used in ...
Initially he used imported Gwathmey machines from the USA, [2] but finding them unreliable, he developed his own continuous-flow machines. His design included cylinders for the gases and a "Boyle's Bottle" to vaporize diethyl ether. Until recently, an anaesthetic machine was often referred to as a "Boyle's Machine" in honour of his contribution.