Clinical researches on different diseases of the larynx, trachea and pharynx, examined by the laryngoscope : preceded by historical remarks on the practical use of the laryngoscope / by Lewis Türck.

  • Türck, Ludwig, 1810-1868.
Date:
1862
Catalogue details

Licence: Public Domain Mark

Credit: Clinical researches on different diseases of the larynx, trachea and pharynx, examined by the laryngoscope : preceded by historical remarks on the practical use of the laryngoscope / by Lewis Türck. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    17/78 (page 11)
    Of the laryngo pharyngeal speculum. According to the description transmitted to us by Liston and Garcia relating to their speculums, these consisted of a mirror with a handle to it; but with regard to the shape of the glasses no particular indications have reached us. It was at a meeting of the medical Society of Vienna, April 9., 1 858, that I exhibited speculums made according to ray own directions, and to which I gave the name of laryngo-pharyngeal speculums. The following description of them is contained in the report of this meeting '). „These speculums consist, of a little mirror of oblong shape, well rounded at its extremities; of a straight stalk forming, with the plane of the mirror, an obtuse angle rendered variable by the flexibility of the metal; and of a handle fixed on the lower extremity of the stalk and representing its prolongation.“ A short time afterwards I altered the oblong shape of these glasses into an oval one, and added also a circular form. My treatise published June 1858 already contened re- presentations of my speculums, the same as in figures 4, 5 (II to IV) and 6. A short time afterwards, I caused two larger specu- lums to be made (fig. 4 and 5, I.). Like Liston and Garcia I generally use a mirror enca- sed in a very slight frame of packfong. Wishing, however, to contrive some means of preventing the glass from cooling too rapidly, I tried to coat some of them over with a substance a non conductor of heat, the asbestus for instance; but the expe- riments which I have as yet made with this kind of instruments, are too few to enable me to form a proper estimate of the real value of this intended improvement. The dimensions of the glasses, I generally use are various; they are represented here in a natural size: ') Zeitfchr. fl. G. fl. Ae. Nr. 17, April 2G., 1858. Zeitschr. d. G. d. Ae. Nr. 26, June 28., 1858.