High-efficiency, directional microwave ablation antenna
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United States of America Patent
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Aug 23, 2022
Grant Date -
Sep 21, 2017
app pub date -
Dec 1, 2015
filing date -
Dec 2, 2014
priority date (Note) -
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Abstract
An electrosurgical device (10) operable to deliver microwave energy to cause targeted tissue ablation is provided. The electrosurgical device (10) comprises an antenna (26), a reflector (30), and a dielectric material (34) disposed therebetween. The selection of the dielectric material (30) and the relative positioning of the antenna (26) and the reflector (30) provide impedance matching between the antenna (26) and a transmission line (12) so as to minimize heating along the length of the device (10) during use.
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