What device is shown below? When is it used and what are its design features which make it suitable for use?

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College Answer

Name: A McCoy Blade laryngoscope (- improved visualization of the cords in the setting of a difficult intubation .   It has a controllable flexible tip which allows for the elevation of distal structures, espec the epiglottis .

Discussion

Yes, this is a McCoy Articulating Tip Laryngoscope, or the levering laryngoscope as McCoy himself called it (he did not name it after himself). Instead of relying on brute force to elevate the epiglottis, the airway enthusiast can squeeze the lever and elevate it gently. It is particularly useful in situations where the larynx is very anterior. The disadvantage is, sometimes the epiglottis can get caught in the hinge.

References

References

AnaesthesiaUK have a nice page about McCoy blades.

Cook, T. M., and J. P. Tuckey. "A comparison between the Macintosh and the McCoy laryngoscope blades." Anaesthesia 51.10 (1996): 977-980.

Doyle, D. J. "A brief history of clinical airway management." Revista Mexicana de Anestesiologia 32 (2009): S164-S167.

McCoy, E. P., and R. K. Mirakhur. "The levering laryngoscope." Anaesthesia48.6 (1993): 516-519.