Apostoli Condenser Bed

APOSTOLI CONDENSER BED, a wooden couch covered with an ebonite sheet over its entire upper surface. Over this sheet, the entire surface of the couch is lined with a metal sheet (sometimes the latter sheet is placed on the lower surface of the couch); a light quilted leather or felt mattress is placed on this sheet. The metal sheet is connected to one of the poles of the primary circuit of the high-frequency apparatus.

The calcaneus of a 5-year-old boy. The apophysis is lagging in its development. In the leg indicated by the arrow, there were typical pains on walking and upon pressure on it. In the second leg, which is also underdeveloped, there are no pains.

The calcaneus of an 11-year-old boy. On the side indicated by the arrow, the apophysis is smaller than on the opposite side. The contours of the bone are sharply outlined. There is no difference between the two sides.

d'Arsonval; the second pole of this circuit is either given in the form of a cylindrical electrode in the hands of the patient lying on the couch, or applied in the form of a plate to his exposed chest, abdomen (Schittenhelm's bed). In the latter method, overheating by the passing current does not occur.

Apostoli's condenser bed.

of the wrist joints, developing upon holding a cylindrical electrode. Thus, the couch with the patient represents a capacitor, one plate of which is the patient, and the second is the metal flooring of the bed; the patient is subjected to the action of high-frequency current, being, in fact, a part of the capacitor, which is charged and discharged by high voltage, with the high frequency of oscillations of the current of the primary circuit of the apparatus.