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Article
September 25, 1886

NEW IMPROVED COMBINED TROCAR AND CANULA AND ASPIRATING NEEDLE.

Author Affiliations

MARSHALLTOWN, IOWA.

JAMA. 1886;VII(13):363-364. doi:10.1001/jama.1886.04250090111012

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Abstract

I take pleasure in presenting and recommending to the profession a New Improved Combined Trocar and Canula and Aspirating Needle. The object of this instrument is to overcome the disadvantages of the common trocar and canula and common aspirating needle and yet to preserve the advantages and applicabilities of both, and at the same time combining the instruments in a neat and compact manner and at reasonable expense.

The advantages of the instrument will readily suggest themselves, and I will therefore give only a brief description and a few suggestions concerning its application.

With the instrument for general use there are four sizes of canulæ—the smallest of which is a part of the aspirating needle and is not larger in diameter than a common hypodermic needle or small, old style, aspirating needle—in which the cutting point cannot be removed after having entered the cavity. The other three sizes of canula

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