发明授权
EP1476093B1 FLUID-ASSISTED ELECTROSURGICAL INSTRUMENT WITH SHAPEABLE ELECTRODE 有权
液体辅助手术器械电动延展性电极

FLUID-ASSISTED ELECTROSURGICAL INSTRUMENT WITH SHAPEABLE ELECTRODE
摘要:
An electrosurgical instrument (12, fig. 1) including an elongated shaft (22) and a non-conductive handle (20) is disclosed. The shaft defines a proximal section (40), a distal section (42), and an internal lumen (50) extending from the proximal section. The distal section forms an electrically conductive tip (44) and defines at least one passage (52) for distributing fluid. Further, the shaft is adapted to be transitionable from a straight state to a first bent state (fig. 5). The shaft is capable of independently maintaining the distinct shapes associated with the straight state and the first bent state. The handle is rigidly coupled to the proximal section of the shaft. With this in mind, an exterior surface of the shaft distal the handle and proximal the distal section is electrically non­conductive. In one preferred embodiment, the shaft is comprised of an elongated electrode body surrounded by an electrical insulator.
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