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May 8, 1909, Vol LII, No. 19 >
ARTICLE | May 8, 1909

OPEN-TUBE LARYNGEAL SPECULUM

E. FLETCHER INGALS, M.D.
JAMA. 1909;LII(19):1495. doi:10.1001/jama.1909.25420450027002g.
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ABSTRACT

This instrument was designed to facilitate the introduction of the bronchoscope or to be used in direct laryngoscopy either for diagnosis or operations. The handle has been placed at an acute angle to the tube, a feature which is important in enabling the operator to hold the instrument firmly with the patient either in the sitting or the recumbent position. The tube is open on one side, which permits the easy withdrawal of the instrument after the introduction of the bronchoscope, yet the opening in no way sacrifices the advantages obtained by the tubular instruments heretofore employed for similar purposes, and its use is not attended by the difficulties that have sometimes been experienced in withdrawing the slide that closes the opening in some tube specula. The light is introduced along a protecting groove so that it is out of the way in operative procedures, yet it is not liable

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AAM 2010;304:1493-1495.
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BMJ 2010;341:c5893-c1494.
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