. Electricity : its medical and surgical applications, including radiotherapy and phototherapy . Jacketed pan for clay pads; hot water is poured into the interior through the pipe shown. (Massey.) should now be placed on the wire side, and on top of the cotton apiece of muslin is placed to be folded over and sewed to the edge ofthe back of the pad. The pad should now be quilted lightly throughand through to keep the cotton from packing, and when the end ofthe wire left free is made into a spiral friction socket, for connection Fig. 150. Massey wired-cotton electrode pads: 1, abdominal pad for


. Electricity : its medical and surgical applications, including radiotherapy and phototherapy . Jacketed pan for clay pads; hot water is poured into the interior through the pipe shown. (Massey.) should now be placed on the wire side, and on top of the cotton apiece of muslin is placed to be folded over and sewed to the edge ofthe back of the pad. The pad should now be quilted lightly throughand through to keep the cotton from packing, and when the end ofthe wire left free is made into a spiral friction socket, for connection Fig. 150. Massey wired-cotton electrode pads: 1, abdominal pad for general use; 2, spinal pad; 3. large dispersing pad. with a battery tip, by winding it about the end of the tip, the electrodeis complete. Various other styles of large pad electrodes have beendevised, examples of which are shown in Figs. 110, 145, and 146. Whenstrong currents are used they should be covered with soap and water. GALVANIC, FARABIC, AND SINUSOIDAL CURRENTS 197 If it is desired to employ the agent more extensively, in orderof their value may be mentioned a good static machine. Meansof obtaining the sinusoidal (Fig. 151) and high frequency currents, thestatic machine can be utilized for obtaining the latter (p. 36 and Fig. IGO)and various special electrodes (pp. 229 and 235).


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