File:Quarterly journal of experimental physiology and cognate medical sciences (1908) (14786770373).jpg

Identifier: quarterlyjournal11edinuoft (find matches)
Title: Quarterly journal of experimental physiology and cognate medical sciences
Year: 1908 (1900s)
Authors:
Subjects: Physiology
Publisher: Edinburgh (etc.) E. & S. Livingstone (etc.)
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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ducted by h\y laboratoryassistant. Private Walter Plevin, was smooth, uninterrupted, and safe, andthe animal was easily restored to consciousness as soon as the operationwas completed by the administration of air alone through the intra-tracheal tube. In fig. 1 the apparatus used is illustrated. It is an ea.sily madeadaptation of tlie more complicated machines in general u.se for the intra-tracheal administration of ether to the human subject. Practice may berequired in passing the soft rubber catheter into the trachea. The size of 80 Blair Bell the catheter is determined by the diameter of the animals trachea, whichthe catheter should never fit closely. The insertion of the catheter waseffected after the animal had been anaisthetised with ether by the ordinary open method. Durino- the intratracheal administration of the ansesthetic the animalrarely received pure ether vapour; it was usually sufficient, once theanimal was fully anassthetised, to continue the anaesthesia with a mixture
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Fig. 1.—Apparatus for the administration of intratracheal ether. (Photograjih.) A, tube from bellows: B, three-way tap indicator: C. tube to ether container: D, ether container;E, tube from ether container: F, tube to mercury pressure valve ; G, mercury pressure valve;H, pressure manometer; I, tube to catheter ; K, catheter. of air and ether vapour, regulated by means of a three-way tap to whichan indicator was attached (fig. 1, B). Bj^ this means ether, ether and airmixed, or air alone could be pumped into the lungs under a uniform andlimited pressure. The anaesthetist sat at the side of the table opposite to the operatorwith his hand underneath the coverintj cloth and restino; aoainst the sideof the animal, in order to judge of its condition: quiet, deep, and slowrespiration indicated perfect anaesthesia ; rapid, shallow breathing too deepanaesthesia, while insufficient anaesthesia was shown by jerky and spasmodic Kxperiiiuiital ( ►penitions on tin- rituitiiry 81 nspirution, or

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