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October 8, 1887


JAMA. 1887;IX(15):479. doi:10.1001/jama.1887.02400140031010

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Dear Sir:  —I have devised the following improvement on the O'Dwyer intubation set, which entirely obviates the difficulty of properly adjusting the extractor:An eye should be drilled in the anterior or stationary jaw of extractor, about its centre, and from the inner opening a groove cut to the tip of jaw sufficient to accommodate the double thread coming from the tube. The thread hole in tube should be drilled about I inch from neck of tube, having its external opening countersunk to receive knot on thread. Both ends of thread should emerge from upper opening of tube, the obturator being grooved for their reception. Now by introducing the free ends of thread into the eye of extractor, the extractor is threaded into the tube with facility and precision.For the application of nitrate silver solutions I suggest the following: To one end of a small glass tube attach

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