Apparatus and method for accurately delimited cryoablation

A - Human Necessities – 61 – B

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A61B 18/18 (2006.01)

Patent

CA 2521019

The present invention is of a system and method for accurate cryoablation, useable to enhance a surgeon~s ability to accurately cryoablate a selected cryoablation target and to limit cryoablation to that selected target. Presented are apparatus and method for accurately delimiting a cryoablation volume for minimizing damage to tissues surround a cryoablation volume. Also presented are a method for mildly heating tissues during cryoablation, and a cryoprobe (200) operable to simultaneously cool first tissue while heating second tissues.

La présente invention concerne un système et une méthode de cryoablation précise, utilisable afin d'améliorer la capacité d'un chirurgien à cryoablater précisément une cible de cryoablation sélectionnée et afin de limiter la cryoablation à ladite cible sélectionnée. L'invention concerne un appareil et une méthode permettant de délimiter précisément un volume de cryoablation, de réduire au minimum les lésions sur les tissus entourant un volume de cryoablation et de visualiser en temps réel une limite d'un volume de cryoablation lors d'une cryoablation. L'invention concerne également une méthode de chauffage modéré de tissus lors d'une cryoablation et une cryosonde pouvant servir à refroidir des premiers tissus tout en chauffant simultanément des seconds tissus.

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