Among the instruments employed for operation on the mastoid by my father, the late Dr. C. J. Spratt, was one that he purchased in Berlin in 1884. The instrument has a pear-shaped bowl and thin edges. It was made by Detert and is listed in his catalogue for 1888 as a Kuster model. As the handle is somewhat small, it does not afford a firm grasp when the curet is used as a rotary cutting instrument. At my suggestion, V. Mueller & Company combined this bowl with the handle used on my curet. This new instrument is suggested in three sizes, 2 by 5, 4 by 12 and 6 by 20 mm., as being sufficient for practically all work on the mastoid. The curet may be used as a rotary cutter or as a scraping instrument.
SPRATT CN. AN IMPROVED CURET FOR OPERATION ON THE MASTOID. Arch Otolaryngol. 1931;14(1):85. doi:10.1001/archotol.1931.03580020093013
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