Local anaesthetics and cocaine analgaesia : their uses and limitations / by Thomas H. Manley.

  • Manley, Thomas H. (Thomas Henry), 1851-1905.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Local anaesthetics and cocaine analgaesia : their uses and limitations / by Thomas H. Manley. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    tissues, as the tendonous, ligamentous and cartilaginous. (Cod- man & Shurtleff, of Boston, Mass., manufacture the strongest hypodermic-needle in this country). The technique of cocaine-hypodermication should be faith- fully carried out, in all cases, if we would the more effectually inhibit sensation, over the operative area. The surface having been thoroughly sterilized, our solution at hand, the syringe is cleansed and tested; it is then charged, when we proceed to first make a hub and a circle of spokes. This is what my good friend, Dr. Joseph Price, of Philadelphia, designates Reclus' radial, injection scheme. The needle is sent into the collar, when we simultaneously commence izvo movements. First, to slowly press down the piston, and secondly, to with- draw the needle, until the point arrives at the puncture, but does not come out through it; when the needle is again sent in, at another angle, and in a different direction; withdraw in the same manner, as in the first instance, and repeatedly in- troduce, until a considerable circle has been sprayed. With this plan, by three or four punctures or spokes only, in the integument, a large area is cocainized. By mak- ing but few punctures through the skin, pain is much reduced. By the compound movement given the syringe, while inject- ing, and withdrawing at the same movement, we avoid de- positing a large quantity at one place; and, should a vessel be penetrated by the needle's point, but a drop or two is sent into its lumen, instead of the whole syringefuU, otherwise. Besides, it evenly sprinkles the needle's path in such a manner as to be more uniformly diffused through the tissues. In trivial operations, but one wheel is made; but, should we need to cover a considerable territory, we make several.