Electrosurgical device having planar vertical electrode and related methods
First Claim
1. An electrosurgical instrument for removing tissue from a target site comprising:
- a shaft having a proximal end and distal end portion;
an electrode support arranged at said distal end portion, said electrode support having a tissue treatment surface;
a planar active electrode attached to said electrode support wherein said planar active electrode is substantially perpendicular to said tissue treatment surface;
an electrical connector extending through the shaft that connects the active electrode with a high frequency power supply; and
an aspiration lumen within the shaft having a distal opening at said distal end portion wherein the active electrode inhibits clogging of the aspiration lumen.
4 Assignments
0 Petitions
Accused Products
Abstract
Electrosurgical methods and apparatus for the controlled ablation of tissue from a target site of a patient. The instrument includes a shaft having proximal and distal end portion and a planar active electrode on the distal end portion; a return electrode arranged on the shaft spaced from the active electrode; at least one electrical connector extending through the shaft that connects the active electrode with a high frequency power supply; and an aspiration lumen within the shaft having a distal opening. The active electrode is arranged vertically or perpendicular to the tissue treatment surface. The planar electrode may include one or more apertures.
-
Citations
24 Claims
-
1. An electrosurgical instrument for removing tissue from a target site comprising:
-
a shaft having a proximal end and distal end portion;
an electrode support arranged at said distal end portion, said electrode support having a tissue treatment surface;
a planar active electrode attached to said electrode support wherein said planar active electrode is substantially perpendicular to said tissue treatment surface;
an electrical connector extending through the shaft that connects the active electrode with a high frequency power supply; and
an aspiration lumen within the shaft having a distal opening at said distal end portion wherein the active electrode inhibits clogging of the aspiration lumen. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 24)
-
-
7. (canceled)
-
16. A method of removing target tissue comprising:
-
inserting an apparatus in the vicinity of said target tissue, said apparatus comprising a distal end and at least one planar active electrode arranged on said distal end, the planar electrode being perpendicular to the target tissue; and
applying a voltage to said active electrode and a return electrode to remove said target tissue. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
-
Specification