Peroral endoscopy and laryngeal surgery . ope been found wanting. Four sizes are sufficient for every possible case from a new-born in-fant to the largest adult. •Tracheo-bronchoscopy, Esophagoscopy .and Gastroscopy. PubUshed at , 1907. IXSTRUMKNTS. 21 The selection of a tube for the particular case no longer presents thedifficulties that it did when a large number of tubes of various lengthswere thought to be necessary. The bronchoscopes and esophagoscopescan, as a rule, be selected absolutely by the ages mentioned in the givenlist. Naturally there is a border-line between the older c
Peroral endoscopy and laryngeal surgery . ope been found wanting. Four sizes are sufficient for every possible case from a new-born in-fant to the largest adult. •Tracheo-bronchoscopy, Esophagoscopy .and Gastroscopy. PubUshed at , 1907. IXSTRUMKNTS. 21 The selection of a tube for the particular case no longer presents thedifficulties that it did when a large number of tubes of various lengthswere thought to be necessary. The bronchoscopes and esophagoscopescan, as a rule, be selected absolutely by the ages mentioned in the givenlist. Naturally there is a border-line between the older child and theyoung adult, where a slightly larger size than the childs size could beused where the adult instruments are slightly too large. In the case ofthe bronchoscope, this field is fully covered by the 7 mm. instrument,which can be used in such cases, and is plenty large enough for work inan adult also, though for adults of average-sized larynx and trachea it ismuch better to have the !1 mm. bronchoscope, as it gives a much larger. Fig, 15. Form of the first of the authors laryngoscopes originally used withthe Wendell C. Thillips headlight. Here shown with Einhorn carrier add-ed. The slide at the side can he left off altogether, if desired, to facilitate the re-moval of the laryngoscope after the insertion of Ijronchoscopes, intratracheal in-sufflation anesthesia catheters, etc. The instrument shown in Fig. 14 is prcfcralile. field of view. In cases where it is desired to enter a ver)- small branchbronchus, low down, it would be necessary to use the 7x10 bronchoscopein an adult. In children under one year of age the T) mm. bronchoscope,is used by many .American bronchoscopists, but as it does notordinarily go through easily, some traumatism may be done tothe lar>nx which will result afterward in subglottic edema. Theauthor and Dr. J. Patterson always use, in such cases, 4 , through the mouth; but to those who have not practicedwork with s
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