Patent ID: 7909820

Claim:
An adaptor comprising: a monopolar power input connector configured to connect to a monopolar mode power output connector of an electrosurgical generator; a monopolar power return connector configured to connect to a ground pad connector of the electrosurgical generator; a first and a second bipolar power output connector, each configured to connect to a first and a second bipolar mode power input connector of a bipolar electrosurgical device, respectively; a transformer coupled between the monopolar power input connector and the first and second bipolar power output connectors, the transformer to receive monopolar radio frequency power to be provided to the monopolar power input connector from the monopolar mode power output connector of the generator, and to transform the monopolar radio frequency power to bipolar mode power output using a plurality of coils, and to provide the transformed radio frequency power to the first and second bipolar power output connectors, and wherein the plurality of coils comprise a first coil and a second coil arranged to have a primary voltage and a secondary voltage, respectively, in phase in a presence of an alternating electrical current, and the adaptor configured to provide the radio frequency power transformed by the transformer to the bipolar electrosurgical device to treat tissue; a monopolar mode hand switch connector configured to connect to a monopolar mode hand switch connector of the electrosurgical generator; at least one bipolar mode hand switch connector configured to connect to a bipolar mode hand switch connector of the electrosurgical device; and wherein the at least one bipolar mode hand switch connector configured to connect to a bipolar mode hand switch connector of the electrosurgical device comprises a first and a second bipolar mode hand switch connector configured to connect to a first and a second bipolar mode hand switch connector of the electrosurgical device, respectively; the first bipolar mode hand switch connector of the adaptor is coupled to the monopolar mode hand switch connector of the adaptor; and the second bipolar mode hand switch connector of the adaptor is coupled to the power input connector of the adaptor in parallel with the transformer.