Electrosurgical instrument and shaft
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United States of America Patent
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Mar 14, 2017
Grant Date -
Jun 19, 2014
app pub date -
Dec 13, 2013
filing date -
Dec 14, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A shaft (14) is provided for a flexible endoscopic instrument, the shaft including at least one flexible section (20) along the length of the shaft, a distal section (19) located distally of the flexible section, and a proximal section (18) located proximally of the flexible section (20). The distal section (19) includes a connection to a shaft electrode, while the proximal section (18) includes at least one connection for connecting the shaft (14) to an electrosurgical generator (1). The shaft also includes a bypass lead (26) in electrical connection with both the distal section (19) and the proximal section (18). The bypass lead (26) ensures that the distal section (19) and the proximal section (18) remain at the same potential even if the electrical pathway via the flexible section (20) becomes degraded by wear or damage thereto.
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