ELECTROSURGICAL APPARATUS FOR GENERATING RADIOFREQUENCY ENERGY AND MICROWAVE ENERGY FOR DELIVERY INTO BIOLOGICAL TISSUE

An isolating circuit for electrosurgical generator arranged to produce radiofrequency (RF) energy and microwave energy for treating biological tissue. The generator has an RF channel and a microwave channel which are combined at signal combiner to enable the RF energy and microwave energy to be deli...

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Hauptverfasser:	DHARMISIRI, Nuwan, HANCOCK, Christopher Paul, WHITE, Malcolm
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS DIAGNOSIS ELECTRICITY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE SURGERY WAVEGUIDES
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creator	DHARMISIRI, Nuwan HANCOCK, Christopher Paul WHITE, Malcolm
description	An isolating circuit for electrosurgical generator arranged to produce radiofrequency (RF) energy and microwave energy for treating biological tissue. The generator has an RF channel and a microwave channel which are combined at signal combiner to enable the RF energy and microwave energy to be delivered into tissue along a common feed path. The isolating circuit comprises a tunable waveguide isolator at a junction between the microwave channel and signal combiner, and can include a capacitive structure between a ground conductor of the signal combiner and a conductive input section of the waveguide isolator to inhibit coupling of the RF energy and leakage of the microwave energy. The isolating circuit can combine into a single tunable unit all the necessary components to isolate the microwave and RF channels from one another whilst providing a high withstanding voltage.
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The generator has an RF channel and a microwave channel which are combined at signal combiner to enable the RF energy and microwave energy to be delivered into tissue along a common feed path. The isolating circuit comprises a tunable waveguide isolator at a junction between the microwave channel and signal combiner, and can include a capacitive structure between a ground conductor of the signal combiner and a conductive input section of the waveguide isolator to inhibit coupling of the RF energy and leakage of the microwave energy. 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The generator has an RF channel and a microwave channel which are combined at signal combiner to enable the RF energy and microwave energy to be delivered into tissue along a common feed path. The isolating circuit comprises a tunable waveguide isolator at a junction between the microwave channel and signal combiner, and can include a capacitive structure between a ground conductor of the signal combiner and a conductive input section of the waveguide isolator to inhibit coupling of the RF energy and leakage of the microwave energy. The isolating circuit can combine into a single tunable unit all the necessary components to isolate the microwave and RF channels from one another whilst providing a high withstanding voltage.</abstract><oa>free_for_read</oa></addata></record>
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language	eng ; fre ; ger
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subjects	BASIC ELECTRIC ELEMENTS DIAGNOSIS ELECTRICITY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE SURGERY WAVEGUIDES
title	ELECTROSURGICAL APPARATUS FOR GENERATING RADIOFREQUENCY ENERGY AND MICROWAVE ENERGY FOR DELIVERY INTO BIOLOGICAL TISSUE
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