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August 3, 1907


Author Affiliations

Associate in Surgery, Johns Hopkins University. BALTIMORE.

JAMA. 1907;XLIX(5):417. doi:10.1001/jama.1907.25320050055003c

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The apparatus as shown in the accompanying cut consists of an evacuating tube, a glass receptacle, a wire sieve and a syringe. These are connected by means of two pieces of rubber tubing, two glass tubes and one rubber stopper. The evacuating tube, straight or curved, is made after the ordinary pattern. The glass receptacle is five inches in length and one and three-eighths inches in diameter. It is constricted in the lower portion, at which place the lumen is slightly larger than that of the evacuating tube. During the operation the stone fragments fall through this aperture and into the lower portion of the receptacle, where they remain undisturbed by the motion of the fluid in the upper part. The wire sieve is a closed cylinder; it is connected to the rubber stopper by means of a piece of brass tubing; this device serves to prevent any particles from

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