Reclaiming the maimed; a handbook of physical therapy . e region to be treated. They come in manysizes and shapes, but canbe improvised out of copper wiremesh to which are soldered the binding screws. They arecovered with felt, cotton wool, or lint, the essentials beingthat they should be clean, soft, smooth, and absorbent, andat least one fourth of an inch thick. Great care should betaken to have them applied to the body uniformly flat andfree from creases. Burns occur at a crease because here thepressure is greater than elsewhere. The pad should also ex-tend well beyond the metal edge of the
Reclaiming the maimed; a handbook of physical therapy . e region to be treated. They come in manysizes and shapes, but canbe improvised out of copper wiremesh to which are soldered the binding screws. They arecovered with felt, cotton wool, or lint, the essentials beingthat they should be clean, soft, smooth, and absorbent, andat least one fourth of an inch thick. Great care should betaken to have them applied to the body uniformly flat andfree from creases. Burns occur at a crease because here thepressure is greater than elsewhere. The pad should also ex-tend well beyond the metal edge of the electrode on every RECLAIMING THE MAIMED 19 side. Electrodes and pads may be kept in firm positionfor treatment by the pressure of a well-applied bandage,by sandbags, or other weights. The two electrodes should not be placed close enough totouch each other, as the current would then become short-circuited instead of penetrating the tissues. When both electrodes have been correctly applied, thecurrent is turned on very slowly and gradually, cell after. Fig. 15. — Continuous current applied to the sciatic nerve by elec-trodes of copper mesh covered by felt, and held in place by sand-bags across the thigh. cell being brought into the circuit. The patient soon becomesconscious of a sharp pricking sensation and a feeling of the unpleasantness of this diminishes, the current can beincreased. If the patient complains of much discomfortor burning, the current should be slowly decreased and theelectrodes remoistened and adjusted. 20 RECLAIMING THE MAIMED The region of the cathode is the danger point. Watchit. Here burns are most hkely to occur. Where anaestheticareas are treated, keep a double lookout for possible burns,because the patient cannot help you; however severely hemay be burnt, he will not have any complaints at the may be caused by too small a pad, and a good ruleis to allow one square inch of electrode for every milliampereof current used. At the ter
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