Trade names that have become generic names in anaesthesia

Abraham, AA

doi:10.4103/0019-5049.100852

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…All the credit had gone to Boyle, although Gwathmey and Marshal had developed their machines before him. [ 3 4 ]…”

Section: History and Evolutionmentioning

confidence: 99%

The basic anaesthesia machine

Gurudatt¹

2013

Indian J Anaesth

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After WTG Morton's first public demonstration in 1846 of use of ether as an anaesthetic agent, for many years anaesthesiologists did not require a machine to deliver anaesthesia to the patients. After the introduction of oxygen and nitrous oxide in the form of compressed gases in cylinders, there was a necessity for mounting these cylinders on a metal frame. This stimulated many people to attempt to construct the anaesthesia machine. HEG Boyle in the year 1917 modified the Gwathmey's machine and this became popular as Boyle anaesthesia machine. Though a lot of changes have been made for the original Boyle machine still the basic structure remains the same. All the subsequent changes which have been brought are mainly to improve the safety of the patients. Knowing the details of the basic machine will make the trainee to understand the additional improvements. It is also important for every practicing anaesthesiologist to have a thorough knowledge of the basic anaesthesia machine for safe conduct of anaesthesia.

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“…All the credit had gone to Boyle, although Gwathmey and Marshal had developed their machines before him. [ 3 4 ]…”

Section: History and Evolutionmentioning

confidence: 99%

The basic anaesthesia machine

Gurudatt¹

2013

Indian J Anaesth

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“…[ 1 ] Coxeters built HEG Boyle's original anaesthesia machine in 1917. [ 2 ] The early Boyle's machine had a breathing system comprising a Cattlin bag, three way stop cock and a facemask. Early anaesthesia machines had a breathing system which required the clinician to manually squeeze the reservoir bag to ventilate the patients.…”

Section: Introductionmentioning

confidence: 99%

Anaesthesia ventilators

Jain

Swaminathan

2013

Indian J Anaesth

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Anaesthesia ventilators are an integral part of all modern anaesthesia workstations. Automatic ventilators in the operating rooms, which were very simple with few modes of ventilation when introduced, have become very sophisticated with many advanced ventilation modes. Several systems of classification of anaesthesia ventilators exist based upon various parameters. Modern anaesthesia ventilators have either a double circuit, bellow design or a single circuit piston configuration. In the bellows ventilators, ascending bellows design is safer than descending bellows. Piston ventilators have the advantage of delivering accurate tidal volume. They work with electricity as their driving force and do not require a driving gas. To enable improved patient safety, several modifications were done in circle system with the different types of anaesthesia ventilators. Fresh gas decoupling is a modification done in piston ventilators and in descending bellows ventilator to reduce th incidence of ventilator induced volutrauma. In addition to the conventional volume control mode, modern anaesthesia ventilators also provide newer modes of ventilation such as synchronised intermittent mandatory ventilation, pressure-control ventilation and pressure-support ventilation (PSV). PSV mode is particularly useful for patients maintained on spontaneous respiration with laryngeal mask airway. Along with the innumerable benefits provided by these machines, there are various inherent hazards associated with the use of the ventilators in the operating room. To use these workstations safely, it is important for every Anaesthesiologist to have a basic understanding of the mechanics of these ventilators and breathing circuits.

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