Electrosurgical system

A - Human Necessities – 61 – B

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Details

A61B 18/12 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2720075

Phase end point determination is provided to automatically halt the application of energy to tissue. Prior to the application of energy, the phase end point determination is identified by measuring the product of permittivity and conductivity of the tissue to be treated. An electrosurgical system can include an electrosurgical generator, a feedback circuit or controller, and an electrosurgical tool. The feedback circuit can provide an electrosurgery endpoint by determining the phase end point of a tissue to be treated. The electrosurgical system can include more than one electrosurgical tool for different electrosurgical operations and can include a variety of user interface features and audio/visual performance indicators. The electrosurgical system can also power conventional bipolar electrosurgical tools and direct current surgical appliances.

La présente invention concerne la détermination d'une limite extrême de phase servant à arrêter automatiquement l'application d'énergie au tissu. Avant d'appliquer l'énergie, pour définir la limite extrême de phase, on mesure le produit entre la permittivité et la conductivité du tissu à traiter. Le système électrochirurgical de l'invention comporte un générateur électrochirurgical, un circuit de rétroaction ou un contrôleur, et un outil électrochirurgical. Pour définir la limite extrême d'électrochirurgie, le circuit de rétroaction définit la limite extrême de phase d'un tissu à traiter. Le système électrochirurgical comporte, d'une part plusieurs outils électrochirurgicaux correspondant à différentes opérations d'électrochirurgie, et d'autre part divers fonctions d'interface utilisateur et de témoins de fonctionnement visuels et sonores. Ce système électrochirurgical convient également à l'alimentation électrique d'outils électrochirurgicaux bipolaires traditionnels et d'appareils chirurgicaux à courant continu.

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