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Eur J Anaesthesiol ; 10(3): 227-30, 1993 May.
Article in English | MEDLINE | ID: mdl-8495684

ABSTRACT

This article describes a model designed to measure the forces acting on a fibrescope when it is pushed through an endotracheal tube. Lubrication with either silicone or normal saline leads to a reduction in friction forces. Fibrescopes lubricated with normal saline require a larger force to be advanced through endotracheal tubes when compared to silicone; however, the difference is clinically unimportant and is outweighed by the advantageous properties of normal saline. A theoretical model is presented which is in close agreement with experimentally derived data.


Subject(s)
Endoscopes , Intubation, Intratracheal/instrumentation , Silicone Oils , Sodium Chloride , Butanes/chemistry , Fiber Optic Technology/instrumentation , Lubrication , Models, Chemical , Silicone Oils/chemistry , Sodium Chloride/chemistry , Stress, Mechanical , Surface Properties
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