This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Response of Human Larynx to Blunt Loading
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 1, 1973 by SAE International in United States
Annotation ability available
Direct impact to the larynx is usually prevented in accidents by the protective nature of the chin. In some situations, the occupant motions leave the larynx unprotected and susceptible to impact by the steering wheel rim or instrument panel. As one of the unpaired vital organs of the body, there is no easy way to provide an alternative for its functions when the larynx is lost or damaged. Information available on the tolerance of the unembalmed human larynx to force is quite limited.
This paper describes a multidisciplinary study to determine the response of unembalmed human larynges to blunt mechanical loading and to interpret the response with respect to clinical data. Fresh intact larynges were obtained at autopsy and tested at either static or dynamic loading conditions utilizing special test fixtures in materials-testing machines. Load and deformation data were obtained up to levels sufficient to produce significant fractures in both the thyroid and cricoid cartilages. Additional information was obtained in the form of permanent dimensional changes through direct measurements and location of fracture sites by use of xeroradiography. Final evaluation of the damage was performed following dissection of the laryngeal structure. The results of the tests are analyzed and interpreted in relation to establishing tolerance criteria for laryngeal loading.
- J. W. Melvin - Highway Safety Research Institute, The University of Michigan
- R. G. Snyder - Highway Safety Research Institute, The University of Michigan
- L. W. Travis - Dept. of Otorhinolaryngology, Medical School, The University of Michigan
- N. R. Olson - Dept. of Otorhinolaryngology, Medical School, The University of Michigan
CitationMelvin, J., Snyder, R., Travis, L., and Olson, N., "Response of Human Larynx to Blunt Loading," SAE Technical Paper 730967, 1973, https://doi.org/10.4271/730967.
- Butler R. M. and Moses R. H., “The Padded Dash Syndrome: Blunt Trauma to the Larynx and Trachea.” The Laryngoscope, Vol. 78 (July 1968), pp. 1172-1182.
- Olsen N. R., “Dashboard Injuries of the Larynx.” Proceedings of Fourteenth Annual Conference of American Association for Automotive Medicine, November 1970.
- Gadd C. W., Culver C. C., and Nahum A. M., “A Study of the Responses and Tolerances of the Neck.” Paper 710856, Proceedings of Fifteenth Stapp Car Crash Conference, P-39. New York: Society of Automotive Engineers, Inc., 1971.
- Miles W. K., Olson N. R., and Rodriguez A., “Acute Treatment of Experimental Laryngeal Fractures.” Annals of Otology, Rhinology and Laryngology, Vol. 80, No. 5 (October 1971), p. 710.
- Jackson C. and Jackson C. L., “Diseases of the Nose, Throat and Ear.” Philadelphia: W.B. Saunders Co., Second Edition, 1959.