Patent ID: 6522930
Filing Date: 2003-02-18
Classification: A61B

Abstract:
A tissue ablation device assembly for ablating a region of tissue in a body of a patient, comprising:an elongated body having a proximal end portion and a distal end portion; a tubular porous membrane located along said distal end portion, said porous membrane having a substantially non-compressible porous wall with an inner surface that defines an inner space; an ablation element disposed within said inner space of said porous membrane, said ablation element having a fixed position with respect to said porous membrane; and a fluid passageway extending through said elongated body and communicating with said inner space, said fluid passageway being adapted to be fluidly coupled to a pressurizeable fluid source for delivering a volume of pressurized fluid from said fluid source to said inner space; wherein said porous membrane allows at least a substantial portion of said volume of pressurized fluid to pass through said porous wall for ablatively coupling said ablation element to said region of tissue.