Henry Edmund Gaskin Boyle
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Henry Edmund Gaskin Boyle (born 2nd April 1875, died 15th October 1941) was a pioneering anaesthetist. Originally born in Barbados; he qualified MRCS LRCP from St Bartholomew's Hospital, London. He is best remembered for the development of early anaesthetic machines. Even until recently, an anaesthetic machine would often be referred to as a "Boyle's Machine" in honour of his contribution in this field. His design included cylinders of oxygen, nitrous oxide and a "Boyle's Bottle" to vaporize diethyl ether. His other contribution to anaesthesia included the Boyle-Davis gag, which is still used today during tonsillectomy operations.