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ARTICLE |

INSTRUMENT FOR INTRASPINAL INJECTION

Clarence Emerson, M.D., Ph.D.
JAMA. 1914;LXII(18):1400. doi:10.1001/jama.1914.25610430003015c.
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Published online

ABSTRACT

The glass cylinder (A) is the barrel of an ordinary glass syringe of 30 c.c. capacity and cost 10 or 15 cents. A small glass T (B) is connected by means of rubber tubing to the cylinder (A), and to the lumbar puncture needle (C). The other limb of the T has a short rubber tube attached to it. Two Langenbeck's artery clamps (D) serve to control the flow of fluid. The capacity of connections from cylinder to needle should be about 1 c.c. An ordinary glass T reduced in size by shortening the limbs is good.

The needle is inserted with the lower clamp released. When sufficient cerebrospinal fluid is withdrawn the upper clamp is removed, the lower one reapplied and the fluid is allowed to flow by gravity into the spinal canal.

The instrument serves its purpose well, can be easily sterilized and is recommended by its cheapness

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