Electrosurgical devices with wire electrode
The invention provides an electrosurgical device and methods of use thereof. In one embodiment, the device may comprise a handle, a shaft distal to the handle, a first electrode tip and a second electrode tip adjacent a distal end of the shaft, with the first electrode tip spaced from the second electrode tip and wherein the first electrode tip comprises a first U-shaped electrode and the second electrode tip comprises a second U-shaped electrode, and at least one fluid outlet. In another embodiment, the device may comprise a handle, a shaft distal to the handle, and a first electrode and a second electrode adjacent a distal end of the shaft with the first electrode coplanar with the second electrode and comprising a wire electrode having a U-shape which surrounds a perimeter of the second electrode and is spaced from the second electrode by an aperture.
1. An electrosurgical device having less than three electrodes, the device comprising:
a handle;
a shaft distal to the handle having a longitudinal axis and a distal end;
a first electrode and a second electrode adjacent the distal end of the shaft, each electrode having a proximal portion, the first electrode coplanar with the second electrode and comprising a wire electrode having a U-shape which surrounds a perimeter of the second electrode and is spaced from the second electrode by an aperture, and wherein the U-shape of the first electrode is substantially situated in a plane that is substantially parallel with the longitudinal axis of the shaft;
at least one fluid outlet, wherein the at least one fluid outlet is s aced from said first electrode; and
wherein the proximal portions of the first and second electrodes are fixed relative to the distal end of the shaft.
2. The device of claim 1 wherein:
the second electrode comprises a wire electrode having a linear segment.
3. The device of claim 1 wherein:
the second electrode comprises a wire electrode having a U-shape.
4. The device of claim 1 wherein:
the second electrode comprises a blade shaped member.
5. The device of claim 1 , wherein the first and second electrodes do not include any outlet for fluid.
6. The device of claim 1 wherein the at least one fluid outlet is separate from said first electrode and said second electrode.
7. The device of claim 1 wherein:
the first electrode and the second electrode are formed from metal wire.
8. The device of claim 7 wherein:
the metal wire is single strand wire.
9. The device of claim 7 wherein: the metal wire is circular wire.
10. The device of claim 7 wherein:
the metal wire is stainless steel wire.
11. The device of claim 1 wherein:
the at least one fluid outlet is located at a distal end of the shaft.
12. The device of claim 1 wherein:
the electrodes are substantially coplanar.
13. The device of claim 1 wherein:
the device is configured to operate as a bipolar device and as a monopolar device.