title: The leech airway or pharyngeal bulb gasway.
abstract: Beverley Charles Leech (1898 to 1960) patented the Leech airway or "Pharyngeal Bulb Gasway" in 1937. The Leech airway formed a seal with the pharyngeal tissues, resulting in a closed system during cyclopropane anaesthesia. Two prototypes and four commercially available versions of the airway have been identified.
authors.affiliation: rajesh.haridas@bigpond.com
authors.forename: R P
authors.initials: RP
authors.lastname: Haridas
mesh_terms: D000764:Anesthesia, Closed-Circuit / Q000266:history* / Q000295:instrumentation*; D002170:Canada; D003521:Cyclopropanes / Q000008:administration & dosage*; D049672:History, 19th Century; D049673:History, 20th Century; D010614:Pharynx
chemical_list: D003521:Cyclopropanes; C030797:cyclopropane