Electrosurgical apparatus for delivering RF and/or microwave energy into biological tissue
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United States of America Patent
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Aug 4, 2020
Grant Date -
Nov 10, 2016
app pub date -
Dec 31, 2014
filing date -
Dec 31, 2013
priority date (Note) -
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Abstract
An electrosurgical instrument for applying to biological tissue RF electromagnetic energy and/or microwave frequency EM energy, wherein the instrument tip has a protective hull with a smoothly contoured convex undersurface facing away from a planar body, and wherein the planar body has a tapering distal edge, and wherein an underside of the planar body extends beyond the protective hull at the tapering distal edge. Also disclosed herein is an interface joint for integrating into a single cable assembly all of (i) a fluid feed, (ii) a needle movement mechanism, and (iii) an energy feed (e.g. a coaxial cable), and a torque transfer device for permitting controlled rotation of the cable assembly within the instrument channel of an endoscope. The interface joint and torque transfer device may be integrated as a single component.
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