Narrow gauge high strength choked wet tip microwave ablation antenna
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United States of America Patent
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Oct 23, 2012
Grant Date -
Dec 2, 2010
app pub date -
May 27, 2009
filing date -
May 27, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An electromagnetic surgical ablation probe having a coaxial feedline and cooling chamber is disclosed. The disclosed probe includes a dipole antenna arrangement having a radiating section, a distal tip coupled to a distal end of the radiating section, and a ring-like balun short) or choke, which may control a radiation pattern of the probe. A conductive tube disposed coaxially around the balun short includes at least one fluid conduit which provides coolant, such as dionized water, to a cooling chamber defined within the probe. A radiofrequency transparent catheter forms an outer surface of the probe and may include a lubricious coating.
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