An apparatus for an electrical surgical appliance is proposed, in which the undesirable leakage currents are considerably reduced or completely prevented. This is achieved according to the invention by a compensation circuit being provided, by means of which a compensation current can be produced in...http://www.google.com.au/patents/US6245063?utm_source=gb-gplus-sharePatent US6245063 - Apparatus for decreasing or eliminating current leakages in electro medical equipment
