Patent ID: 6206847
Filing Date: 2001-03-27
Classification: A61B,A61K,A61M,A61N

Abstract:
A medical probe device for medical treatment of tissue at a treatment site beyond a wall defining a natural body cavity accessible from outside a body by a natural body opening comprising an elongate probe member having proximal and distal extremities and a passageway extending from the proximal extremity to the distal extremity, the elongate probe member having a length so that when the distal extremity of the elongate probe member is in the vicinity of the treatment site the proximal extremity of the elongate probe member is outside the body, a stylet slidably mounted in the passageway of the elongate probe member and having proximal and distal extremities, handle means coupled to the proximal extremity of the elongate probe member for introducing the distal extremity of the elongate probe member into the natural body cavity so that the distal extremity of the elongate probe member is in the vicinity of the treatment site, the handle means including means for advancing the stylet from the passageway to cause the distal extremity of the stylet to penetrate the wall and to extend into the tissue of the treatment site, the stylet having a first lumen extending from the proximal extremity to the distal extremity for delivering a liquid into the tissue of the treatment site and a second lumen extending from the proximal extremity to the distal extremity for removing materials from the treatment site and means for supplying radio frequency energy to the stylet for delivery through the distal extremity of the stylet to cause the temperature of the tissue of the treatment site adjacent the distal extremity of the stylet to be raised so as to destroy cells in the tissue of the treatment site.