Method and system for trans-lumenal radio-frequency ablation...

Details Method and system for trans-lumenal radio-frequency ablation... Method and system for trans-lumenal radio-frequency ablation...

A - Human Necessities

61

B

A61B 18/14 (2006.01)

Patent

CA 2330468

A trans-lumenal heat ablation system for the destruction of cancerous tumors includes an ablative element passed through an endoscope. In one embodiment, the ablative element is a radio-frequency electrode with a tissue-piercing point at its distal end so that when it emerges from the endoscope it can pierce the wall of the bodily lumen or passageway into which the endoscope has been placed. An ultrasonic imaging device within the endoscope provides image guidance of the tip of the electrode placed within the tumor volume.

L'invention concerne un système d'ablation transluminale par la chaleur, destiné à la destruction de tumeurs cancéreuses. Il comprend un élément d'ablation que l'on fait passer dans un endoscope. Dans un mode de réalisation, l'élément d'ablation se présente comme une électrode haute fréquence possédant à son extrémité distale un point de percement de tissus qui, lorsqu'il sort de l'endoscope, peut percer la paroi d'une lumière du corps ou du canal dans lequel l'endoscope a été placé. A l'intérieur de l'endoscope, un dispositif d'imagerie à ultrasons permet le guidage par l'image de la pointe de l'électrode placée dans le volume d'une tumeur.

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