APPLICATOR DEVICE FOR ABLATION BY RADIOFREQUENCY OF BIOLOGICAL TISSUES
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United States of America Patent
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Issued Date -
Jun 3, 2010
app pub date -
Apr 30, 2008
filing date -
Apr 30, 2007
priority date (Note) -
Abandoned
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Abstract
An applicator device (1, 1') for radiofrequency ablation of biological tissues; the device comprises an electrode whose outer surface is covered with an insulating cover (2, 2'') in a proximal portion, and has a conductive distal portion (3, 3') whose electrode includes internal refrigeration means (7, 7'); an infusion system with a distal end (13, 6) for infusing a fluid in said tissue; wherein said distal end (13, 6) of the infusion system has an electrically insulating outer cover and is located, in the infusion position for said fluid, at a distance between 2 and 5 millimetres from said outer surface of the internally cooled electrode. The invention also concerns a method for ablation by radiofrequency of biological tissues.
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