FOAM ELECTRODE AND METHOD OF USE THEREOF DURING TISSUE RESECTION
0 Assignments
0 Petitions
Accused Products
Abstract
Assemblies and methods are provided for resecting a portion of tissue to be removed (e.g., unhealthy tissue, such as cancerous tissue) from a portion of the tissue to be retained (e.g., healthy tissue) within a patient is provided. An electrically conductive fluid, such as saline, may be absorbed into a hydrophilic electrode. Electrical energy (e.g., radio frequency (RF) energy) is conveyed to or from the hydrophilic electrode while being moved in proximity to the tissue along a resection line, whereby tissue adjacent to the resection line is coagulated. A resection member, such as a blunt resection member or a resection electrode, which may be on the same device as the hydrophilic electrode, is used to separate the tissue along the resection line to resect the tissue portion to be removed from the tissue portion to be retained.
39 Citations
182 Claims
-
1-153. -153. (canceled)
-
154. An electrosurgical probe, comprising:
-
an elongated probe shaft; a pair of rigid opposing members distally extending from the probe shaft, the rigid members having respective inward facing surfaces that form a channel therebetween, at least one of the inward facing surfaces having a taper, whereby a region of an anatomical vessel that proximally slides within the channel is gradually closed by the respective inward facing surfaces; a first vessel ligation electrode adjacent the inward facing surface of one of the rigid members, wherein the first ligation electrode is configured for contacting a first side of the anatomical vessel at the closed region; and a first hydrophilic electrode laterally disposed relative to the one rigid member, wherein the hydrophilic electrode is configured for contacting the first side of the anatomical vessel when disposed within the channel. - View Dependent Claims (155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170)
-
-
171. An electrosurgical probe, comprising:
-
an elongated probe shaft; a pair of rigid, electrically insulative, opposing members distally extending from the probe shaft, the rigid members having respective inward facing surfaces that form a channel therebetween, at least one of the inward facing surfaces having a taper, whereby the channel gradually narrows in the proximal direction, each of the rigid members having opposing lateral surfaces; a metallic material disposed on the inward facing surfaces of the rigid members; a hydrophilic material disposed on the opposing lateral surfaces of each rigid member; and at least one connector terminal electrically coupled to the metallic material and hydrophilic material. - View Dependent Claims (172, 173, 174, 175, 176, 177)
-
-
178. An electrosurgical probe, comprising:
-
an elongated probe shaft; a rigid, electrically insulative, tissue dissection member extending from the probe shaft, the dissection member having a pair of member portions having opposing inward facing surfaces that form a channel therebetween, whereby an anatomical vessel can be captured between the respective inward facing surfaces, and opposing lateral surfaces; a hydrophilic material disposed on the opposing lateral surfaces of each of the rigid members; and at least one connector terminal electrically coupled to the hydrophilic. - View Dependent Claims (179, 180, 181, 182)
-
Specification