Open AccessFactors Affecting the Extrusion Rates of Ventilation Tubes
Author(s) -
I. J. Mackenzie
Publication year - 1984
Publication title -
journal of the royal society of medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.38
H-Index - 81
eISSN - 1758-1095
pISSN - 0141-0768
DOI - 10.1177/014107688407700908
Subject(s) - extrusion , collar , ventilation (architecture) , tube (container) , medicine , materials science , engineering , mechanical engineering , composite material
A survey in which 939 ventilation tubes of 8 different patterns were inserted and reviewed (up to a maximum of 2 1/4 years) is analysed. Various factors determining the rate of extrusion are discussed. The Sheehy Collar Button tube remained functional for a longer period than any of the other tubes included in the survey.
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