The modified Leiter's apparatus, for the application of hot and cold water to the ear, is made of inflexible material. The long lead tubing is avoided. The apparatus is slightly bent, adapting itself to the contour of the head.
Figures 1 and 2 fully explain the construction. The short tubes can be easily cleansed. Different sizes are required for different ears. The opening of the inlet is about twice as large in diameter as the opening of the outlet. For this latter idea I am indebted to the instrument maker, Charles Karlson, of Detroit.
AMBERG E. LEITER'S APPARATUS FOR THE EAR, MODIFIED BY AMBERG. JAMA. 1901;XXXVII(5):323. doi:10.1001/jama.1901.62470310029001h
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