Bipolar electrosurgical trocar

Details Bipolar electrosurgical trocar Bipolar electrosurgical trocar

A - Human Necessities

61

B

A61B 17/34 (2006.01) A61B 18/14 (2006.01) A61B 17/36 (1995.01)

Patent

CA 2161326

The invention provides an electrosurgical tissue penetrating probe (e.g., a trocar) (24) for use with surgical procedures such as a laparoscopy. The trocar (24) has a stylet (36) disposed within the housing member (34), having an active electrode (42) disposed on a distal end thereof to deliver electrosurgical energy to the target tissue in contact with the stylet (36). A return electrode (48) is disposed on the housing member to form part of a return electrical path to the delivery electrosurgical energy. The invention also provides an electrosurgical trocar system having an impedance monitor and associated power regulating circuitry to control the amount of electrosurgical energy delivered to tissue so that the measured tissue impedance is maintained within a preselected range.

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