Patent ID: 8518037
Filing Date: 2013-08-27
Classification: A61B

Abstract:
1. A radiofrequency ablation device comprising: an elongate cannula having a distal portion and a proximal portion and a lumen extending between the distal portion and the proximal portion; an elongate tubular member disposed within the lumen of the elongate cannula, the elongate tubular member having a distal region and a proximal region, the elongate tubular member including a lumen extending between the distal portion and the proximal portion thereof; and an electrode member slidably disposed in the elongate cannula lumen, the electrode member including a plurality of tines at a distal portion thereof, the plurality of tines being configured to deploy from the elongate cannula as the electrode member is moved toward the distal portion of the elongate cannula, the electrode member further including a proximal portion and a lumen extending between the distal portion and the proximal portion, wherein the elongate tubular member is axially fixed relative to the electrode member, and wherein the elongate tubular member is disposed within the lumen of the electrode member and a substantial length of an outer surface of the elongate tubular member engages a substantial length of an inner surface of the lumen of the electrode member, and wherein the elongate tubular member is fixed to the electrode member by a bonding layer disposed between the elongate tubular member and the electrode member.