Local anaesthesia in general medicine and surgery : being the practical application of the author's recent discoveries / by J. Leonard Corning.
- James Leonard Corning
- Date:
- 1886
Licence: Public Domain Mark
Credit: Local anaesthesia in general medicine and surgery : being the practical application of the author's recent discoveries / by J. Leonard Corning. 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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![York Medical Journal for September 19, 1885.— J. L. C] M. J., aged fifteen, November, 1885. Large granulating sore at flexure of right elbow-joint, re- sulting from division of cicatrix of burn, whicli oc- curred at the age of two years. Injected ten drops of a four-per-cent solution of cocaine on inside of left arm. Five minutes later applied rubber bandage above site of puncture, and removed an elliptical piece of skin one and a half inches in length by three quarters of an inch in width at its widest part, to be transferred to sore on opposite arm, as a graft. No pain. On the Prevention of Constitutional Symptoms, As observed in a preceding chapter of the sec- ond part of this brochure, I am convinced that the strength of the solutions of the hydrochlorate hereto- fore employed in surgical operations has been far too great; at all events, since the introduction of my method such powerful solutions are no longer neces- sary, as I have had occasion to demonstrate to my entire satisfaction. The philosophy of all this is sim- ple enough. When we inject the anaesthetic accord- ing to the old methods—that is to say, without resort to incarceration—the solution remains so short a time in contact with the filaments of the sensory nerves that the percentage of the hydrochlorate of cocaine must of necessity be great in order to give rise to a suf- ficient chemical change in the nervous ramifications to cause insensibility. On the other hand, when we em- ploy the ligature, when we incarcerate the anaesthetic 7](https://iiif.wellcomecollection.org/image/b21047534_0103.jp2/full/800%2C/0/default.jpg)
