. The medical and surgical uses of electricity : including the X-ray, Finsen light, vibratory therapeutics, and high-frequency currents . Fig, 211.—Scheidels PortaDle Coil with Battery. be possible. A practical point in connection with the use of the staticmachine in X-ray work is its unaccountable tendency to change itspolarity. Before connecting the tube, therefore, one must be sure whichis the positive and which the negative pole of the machine. There are 6o4 ELECTRO-SURGERY. various ways of determining this, but the simplest is by the color ofthe electric discharge between the small balls
. The medical and surgical uses of electricity : including the X-ray, Finsen light, vibratory therapeutics, and high-frequency currents . Fig, 211.—Scheidels PortaDle Coil with Battery. be possible. A practical point in connection with the use of the staticmachine in X-ray work is its unaccountable tendency to change itspolarity. Before connecting the tube, therefore, one must be sure whichis the positive and which the negative pole of the machine. There are 6o4 ELECTRO-SURGERY. various ways of determining this, but the simplest is by the color ofthe electric discharge between the small balls at the ends of thedischarging 212.—Patients Table. It will be observed that the broadest band of white in the other-wise purple stream between the two balls is next the positive the positive pole, again, the electric discharge will follow the pointof a piece of wood when drawn over the surface. At the negative polethe discharge is not affected by this test. The Fluoroscope.—The fiuoroscope (Fig. 213) is a box of pyramidalform, the inner side of the base of which is a fluorescent screen made
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Keywords: ., bookauthorrockwell, bookcentury1900, bookdecade1900, bookyear1903
