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This instrument was designed primarily for the examination and treatment of rectal diseases in children. Reflected light gave very unsatisfactory results because of the resistance and struggle of the little patients. The light could not be placed and fixed at the point to be examined as it can with this instrument. These drawings and designs were made by me and sent to the Electro-Surgical Instrument Company of Rochester, N. Y., who produced a most satisfactory instrument. It is simply a modification of Dr. James P. Tuttle's 6-inch illuminated pneumatic proctoscope. I claim originality only for the instrument being made for the examination and treatment of children. The modifications are as follows:
1. The instrument is very much reduced in caliber.
2. The auxiliary chamber is placed wholly within the tube in order to make the instrument as small as possible and yet give ample room for making application through it.
AXTELL WH. PNEUMATIC ILLUMINATED INFANTILE SIGMOIDOSCOPEA NEW RECTAL INSTRUMENT. JAMA. 1910;55(4):314. doi:10.1001/jama.1910.04330040050018