Handbook of diseases of the ear : for the use of students and practitioners / by Urban Pritchard.

  • Pritchard, Urban.
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: Handbook of diseases of the ear : for the use of students and practitioners / by Urban Pritchard. Source: Wellcome Collection.

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

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    of which a portion has been removed so as to allow of the forceps being more fully opened. The dilating speculum (fig. 12) consists of two blades like other bi-valve specula. These are introduced when closed, and then separated either by means of a screw Fig. 12 —Dilating Ear Speculum. or a handle. This kind is occasionally useful when the meatus is much flattened or collapsed. Siegle's pneumatic speculum (fig. 13) is an ingenious modification of the speculum devised for the purpose of Fig. 13.—Siegle's Pneumatic Speculum. examining the mobility of the membrana tyrnpani. It consists of an ordinary short speculum with its narrow end covered with india-rubber to make it fit the meatus more accurately. A piece of glass fits closely and obliquely across the wide end, and below this is a small