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Finite Element Modeling of a Mainstream Capnometer System for Non-Intubated Pediatric Patients Requiring Oxygen Administration

[+] Author Affiliations
Fumihiko Takatori, Masayuki Inoue, Shinji Yamamori

Nihon Kohden Corporation, Tokyo, Japan

Seiki Abe

Nagano Children’s Hospital, Azumino, Nagano, Japan

Matthew R. Maltese, Vinay M. Nadkarni

Children’s Hospital of Philadelphia, Philadelphia, PA

Katsuyuki Miyasaka

St. Luke’s International Hospital, Tokyo, Japan

Paper No. FMD2013-16061, pp. V001T10A012; 2 pages
  • ASME 2013 Conference on Frontiers in Medical Devices: Applications of Computer Modeling and Simulation
  • ASME 2013 Conference on Frontiers in Medical Devices: Applications of Computer Modeling and Simulation
  • Washington, DC, USA, September 11–13, 2013
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-5600-0
  • Copyright © 2013 by ASME


Capnometry is the standard of care to measure the amount of carbon dioxide in the proximal airway, detect apnea, tracheal tube dislodgement, and effectiveness of ventilation during invasive mechanical ventilation in critically ill infants, children and adults [1]. Capnometry is not yet standard practice for non-invasively supported or ventilated patients, due to dead space ventilation, inspiratory gas washout, gas entrainment, and potential for rebreathing of gas. Potential capnometry use in non-intubated patients could identify impending respiratory failure, obstructed airways, and improve the safety and effectiveness of non-invasive support for infants and children [2].

Copyright © 2013 by ASME



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