ELECTROSURGICAL APPARATUS AND METHODS FOR LAPAROSCOPY
First Claim
1. An electrosurgical apparatus for treating tissue at a target site, comprising:
- a shaft having a shaft distal end and a shaft proximal end;
an electrically insulating electrode support disposed at the shaft distal end; and
a plurality of active electrodes arranged substantially parallel to each other on the electrode support, wherein the shaft comprises an inner shaft and an outer shaft, wherein a proximal portion of the inner shaft lies within the outer shaft, and a distal portion of the inner shaft extends distally from the outer shaft.
1 Assignment
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Accused Products
Abstract
Electrosurgical methods and apparatus for treating tissue at a target site of a patient. An electrosurgical instrument includes a shaft, having a shaft distal end and a shaft proximal end, and an electrode assembly disposed at the shaft distal end. The electrode assembly includes at least one active electrode disposed on an electrode support. The instrument is adapted for coupling to a high frequency power supply or electrosurgical generator. Each active electrode is adapted for removing tissue from a target site and/or for localized coagulation of the target tissue. In one embodiment, the instrument is adapted for laparoscopic procedures.
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Citations
33 Claims
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1. An electrosurgical apparatus for treating tissue at a target site, comprising:
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a shaft having a shaft distal end and a shaft proximal end; an electrically insulating electrode support disposed at the shaft distal end; and a plurality of active electrodes arranged substantially parallel to each other on the electrode support, wherein the shaft comprises an inner shaft and an outer shaft, wherein a proximal portion of the inner shaft lies within the outer shaft, and a distal portion of the inner shaft extends distally from the outer shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An electrosurgical instrument, comprising:
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a shaft having a shaft distal end, the shaft distal end having a plurality of longitudinal, external grooves; an electrode assembly disposed at the shaft distal end; and an electrically insulating sheath external to the shaft distal end, the sheath and the plurality of grooves jointly defining a corresponding plurality of fluid delivery channels external to the shaft distal end, each of the plurality of fluid delivery channels adapted as a fluid conduit. - View Dependent Claims (23, 24, 25, 26)
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27. A method of electrosurgically removing ectopic endometrial tissue of a patient, the method comprising:
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a) providing an electrosurgical probe, the probe including an electrode assembly having at least one active electrode; b) positioning the electrode assembly in at least close proximity to a target endometrial implant; and c) applying a high frequency voltage between a return electrode and the at least one active electrode, wherein the voltage is effective in removing the endometrial implant with little or no damage to tissue underlying the endometrial implant. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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Specification