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August 16, 1919, Vol 73, No. 7 >

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ARTICLE | August 16, 1919

NEW METHOD FOR OPENING HYPODERMIC NEEDLES

Milton H. Prosperi, M.D.
JAMA. 1919;73(7):550. doi:10.1001/jama.1919.02610330088023.
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ABSTRACT

To the Editor:  —To one who is accustomed to using hypodermic needles frequently, as in the administration of vaccines and other medicinal preparations, the value of some method by which the lumen of the needles can be kept free of rust and other materials in the shortest possible time is a distinct advantage over the method of boiling in a solution of sodium carbonate, as recommended in The Journal, and the use of the copper wire, etc. The use of a small instrument known as the pivot broach, used by jewelers to drill very fine holes in watch repairing, permits a needle to be opened very quickly. This instrument is a three-cornered piece of tempered steel with a round handle at one end, the cutting edges being the three corners which act as a drill. It is the size of the lumen of the needle, and the same length as

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