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The use of the snare with a cold steel wire for the removal of the tonsil requires an instrument simple in construction and strong in all parts. The instrument here shown covers, I think, these requisites.
No provision is made for the re-use of the same wire because the snare can be so quickly threaded and a loop once used loses its best form. The general shape and mechanism is that of snares that are well known to be satisfactory. The parts have been adapted to the uses to which it is to be put. The canula is strong and has a button on the end to prevent its splitting. The screw for the attachment of the wire is set firmly into a strong piece of steel; over this fits a button and then a loose washer. Both button and washer are made of chilled steel and milled so that
SEWALL EC. TONSIL SNARE.. JAMA. 1907;XLVIII(20):1678. doi:10.1001/jama.1907.25220460034004g