System and method for applying thermal energy to tissue

A - Human Necessities – 61 – F

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A61F 7/12 (2006.01) A61B 18/08 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2238395

An apparatus, system, and method for treating body tissue using controlled application of heat include a control unit providing electrical power to a bipolar electrode positioned within an expandable member filled with conductive fluid. Electrical power applied to the bipolar electrode by the control unit causes current to pass from the active electrode, into the conductive fluid, and to the return electrode, thereby heating the conductive fluid. The temperature of the conductive fluid is monitored by the control unit, and power is increased and decreased in accordance with a comparison of the monitored temperature against the desired temperature range. The control unit also includes a pressure sensor for regulating the pressure in the bladder. Pressure and temperature displays and other operator controls are located on the control unit.

Un dispositif, un système et une méthode permettant de traiter un tissu corporel par application contrôlée de chaleur comprennent une unité de commande qui fournit une énergie électrique à une électrode bipolaire positionnée à l'intérieur d'un élément extensible rempli de fluide conducteur. L'énergie électrique appliquée à l'électrode bipolaire par l'unité de commande fait passer le courant dans l'électrode active, dans le fluide conducteur puis dans l'électrode de retour, ce qui chauffe le fluide conducteur. La température de ce dernier est contrôlée par l'unité de commande, qui augmente ou diminue l'énergie en comparant la température mesurée à la plage de température désirée. L'unité de commande comporte également un capteur de pression, qui permet de réguler la pression à l'intérieur du ballonnet gonflable, des dispositifs d'affichage de la pression et de la température, ainsi que d'autres commandes destinées à l'opérateur.

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