Carter, DeLuca & Farrell LLP
Electrosurgical end effector assemblies and electrosurgical forceps configured to reduce thermal spread
An end effector assembly (100, 200) of an electrosurgical forceps (10, 10′) includes first and second jaw members (110, 120, 210, 220). At least one of the jaw members (110, 120, 210, 220) is movable relative to the other between a spaced-apart position and an approximated position. At least one of the jaw members (110, 120, 210, 220) includes an electrically-conductive inner member (115, 125) defining an outer surface, a first electrically-insulative layer (116, 126) disposed on a portion of the outer surface of the electrically-conductive inner member (115, 125), a second electrically-insulative layer (117, 127) disposed on another portion of the outer surface of the electrically-conductive inner member (115, 125), and an electrode (118, 128) disposed on the second electrically-insulative layer (117, 127) and electrically coupled to the electrically-conductive inner member (115, 125). The electrode (118, 128) defines a tissue-treating surface of the corresponding jaw member (110, 120, 210, 220). The first electrically-insulative layer (116, 126) has a thermal conductivity greater than that of the second electrically-insulative layer (117, 127).
Covidien LP
A A A A A A
A61B A61B A61B A61B A61B A61B
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Jianjiang Weijiang Kai
Chen Ding Liu