. Electricity : its medical and surgical applications, including radiotherapy and phototherapy . Petersons improved cataphoric electrode. A is a disk, made of metal, that will not oxidize. Thestem which passes through the hard rubber cover C is held in place by nut D. It also holds the tipfor connecting with the battery. B is a soft rubber ring, which is held in place by A, and at the sametime it insulates the skin from A, allowing the current to pass from A to the akin of the patient throughthe medicated paper contained in the cavity formed by A and B. A constant galvanic current of from five
. Electricity : its medical and surgical applications, including radiotherapy and phototherapy . Petersons improved cataphoric electrode. A is a disk, made of metal, that will not oxidize. Thestem which passes through the hard rubber cover C is held in place by nut D. It also holds the tipfor connecting with the battery. B is a soft rubber ring, which is held in place by A, and at the sametime it insulates the skin from A, allowing the current to pass from A to the akin of the patient throughthe medicated paper contained in the cavity formed by A and B. A constant galvanic current of from five to twenty milliamperes instrength, or from ten to thirty cells, is then passed until the electrodeis dry. The current should be both increased and decreased in strengthgradually. Owing to the rapid diminution in the density of the current(p. 109) that occurs as soon as the moistened skin beneath the electrodehas been passed, drugs cannot be introduced to any great distancewithin the body, but are soon absorbed by the bloodvessels and lym-phatics within the subcutaneous tissues. It is prefer
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