Footnotes

• Contributors All authors contributed significantly to the development of the project, design of the laryngoscope, creation and final approval of the manuscript. Authors SH, JC and ES contributed significantly to the testing of the laryngoscope.

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Disclaimer The views expressed in this article reflect the results of research conducted by the authors and do not necessarily reflect the official policy or position of the Department of the Navy, Department of Defense or the US government. The authors are military service members, and this work was prepared as part of their official duties. Title 17 U.S.C. 105 provides that 'Copyright protection under this title is not available for any work of the United States Government'. Title 17 U.S.C. 101 defines a US government work as work prepared by a military service member or employee of the US government as part of that person’s official duties.

• Competing interests None declared.

• Provenance and peer review Not commissioned; externally peer reviewed.