Transactions on Additive Manufacturing Meets Medicine
Vol 2 No 1 (2020): Trans. AMMM
https://doi.org/10.18416/AMMM.2020.2009025

Medical Phantoms for Planning, Training, and Quality Assurance

Determination of the critical closing pressure for a 3D printed collapsible model of an idealized upper airway geometry

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Alina Ibbeken (Universität zu Lübeck), Christina Hagen , Fenja Zell , Armin Steffen , Ulrike Grzyska , Alex Frydrychowicz , Thorsten M. Buzug 

Abstract

Obstructive sleep apnea is a common sleep disorder caused by a partial or complete collapse of the upper airway due to a shift of soft tissues. A parameter to measure the airway collapsibility is the critical closing pressure, which defines the pharyngeal pressure at which the airway collapses. A 3D printed collapsible model of an idealized upper airway geometry was used to perform deformation and pressure measurements and thus to determine the critical closing pressure. The influence of increasing airway resistance on the deformation behavior was examined by changing the size of the inflow area.

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