Essentials of medical electricity / by D.D. Stewart and E.S. Lawrance.

  • Stewart, David Denison.
Date:
1893
Catalogue details

Licence: Public Domain Mark

Credit: Essentials of medical electricity / by D.D. Stewart and E.S. Lawrance. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    trodc, well moistened. The brush should be slowly stroked over the part. For faradization of muscles, etc., the handles of the electrodes should be held by the operator, or both electrodes may be held in one hand, leaving the other free to regulate the current. This is very necessary, as certain portions of the body are much more seusitive than others ; thus, all bony prominences are peculiarly sensitive. Central Galvanization.—One pole, preferably the cathode, should be placed at the sacrum : the anode is then applied to the forehead for a length of time varying according to circum- stances—but five minutes will generally be found quite long euough. The pole should then be drawn to the vertex, and from there along the pneumogastric and sympathetic route in the neck, thence down the entire length of the spine. The current must be carefully regulated, much more care being required about the head than along the spine. General Faradization may be accomplished by placing one electrode at au indifferent point—any part of the trunk, or, using a large copper plate, at the soles of the feet, and drawing the other about the body generally. The application may last ten to fifteen minutes. Subaural Galvanization.—This method is said by DeWatte- ville to be purely empirical; and yet the results obtained in dis- eases of the brain and spinal cord are admitted by him to be very gratifying. It is used by placing the cathode, a medium electrode, under the ear, and a large negative electrode over the lower cervical and upper dorsal vertebrae. Galvano-Faradization. — This method was introduced by De- Watteville ; he unites the secondary coil and galvanic battery in one circuit by connecting, by means of wire, the negative pole of one to the positive of the other. A slowly interrupted faradic current is obtained by means of a mechanical device, described in a previous portion of this work. It is useful for the purpose of stimulating muscular con- tractions, and in its effects must be akin to galvanism. By the kind permission of Dr. Rockwell, and of his publishers, Messrs. VVm. Wood & Co., of New York, the writers have the