Patient plate for diathermy apparatus, and diathermy apparatus fitted with it

摘要

An aluminium foil electrode (11) is secured to a flexible insulating sheet (10) by pressure sensitive adhesive. The foil has a slot (14) extending for the major portion of the foil's length from a contact edge (12b). To test for cracks in the foil which might cause poor electrical contact with the patient and thus cause diathermy burns, the resistance around the U-shaped pathway from the contact edge on one side of the slot to the other side of the slot is monitored.;The adhesive is exposed through the slot (14) and through cut-out apertures (15, 15a) in the foil (11), to improve contact of the patient plate with the patient. A removable cover sheet (16) protects the exposed adhesive when not in use.