ELECTRIC EQUIPMENT 8 Surgical Cautrey

Surgical Cautery

•     Electric cautery is used to destroy superficial skin lesions. The wire tip is raised to red heat by means of an electric current

•     This heated cautery point is then applied to the tissue area to cause tissue death through coagulation

•     The current source may be a low-voltage battery or trans­former connected the mains, although the transformer is preferable, as the output is more constant than that of a battery

•     The transformer has a rheostat knob which may be adjusted to alter the voltage applied to the platinum point

•     The cautery must not be used any hotter than at red heat, as too high a current will cause rapid burning out of the cautery wire and reduce its life span

•     The cautery point are various sizes and shapes (Fig. 2.4) are mounted in a heat-resisting handle to which are connected two wires

•     These wires are then connected to the transformer which must be switched off at the wall socket

•     The cautery must be connected to the cautery terminals

•     After connecting the wires the transformer may then be switched on.

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