Dicussion upon the diagnosis and treatment of foreign bodies in the upper air-passages and gullet : British Medical Association meeting, July 30th, 1902 : paper / read by John Macintyre.

  • Macintyre, John.
Date:
1902
Catalogue details

Licence: In copyright

Credit: Dicussion upon the diagnosis and treatment of foreign bodies in the upper air-passages and gullet : British Medical Association meeting, July 30th, 1902 : paper / read by John Macintyre. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    conditions, and likewise upon the application of the principles which underlie the differentiation of different objects of varying density, and the tissues themselves, such as those which reveal bone, cartilage, and muscle. For the finest results the best apparatus is necessary; and I shall now throw a number of lantern-slides upon the screen, or show photographs or instruments, by way of demonstrating what has been found valuable in my own experience. The first series of lantern-slides is intended to show the appar- atus which I have found through experience to be useful in our special department. The coil, you will see, is a large one. We can change the primary to suit different conditions of self-induction, and, what is more important, large currents can be passed through the primary of the coil. I use the mercury dipping interrupter, a rotatory form of the same, and the Wehnelt. Sometimes one is more suitable for a particular part of the body than another, or it may be that one is more useful at times for screen-work than photography. I have devised a special switchboard, by means of which any one of these interrupters can immediately be changed. Again, the table has been specially arranged so that the Crookes' tube can be placed below or above it, and, by means of a reflecting mirror, one can see the object the whole time it is being photographed. Further, the foreign body itself—in some instances, at least—can be seen while it is being extracted. The fluorescent screens should be of the very best make, and small ones can be introduced into the mouth by methods which I described three or four years ago, so as to reveal the presence of foreign bodies in the antrum or tissues of the neck. The tube is of the greatest importance; one like Queen's or Miiller's, with arrangements for changing the vacuum and keeping it at the same for a period, is the best. With such apparatus as I have described, provided there is an ample supply of current well controlled by rheostats, one can arrange for different densities of tissues or of the objects themselves. I will show you on the screen a number of photographs illustrating the different parts of the larynx, including cartilages and muscles. The next series of lantern-slides and photographs represents the great advantages to be derived from stereoscopic vision, and where we wish accuracy and a good idea of the position of a foreign body, with its relation to surrounding tissues, there is no comparison between the ordinary photograph and the stereoscopic one. Lastly, thanks to the work of Payne, Barrell, Kemy, Shenton,