Patent ID: 6954977
Filing Date: 2005-10-18
Classification: A61B,A61N,Y10T

Abstract:
1. A method for forming a medical balloon catheter device assembly which is adapted to deliver a volume of fluid to a region of tissue in a body, comprising: providing a fluid permeable section tube having a first end portion, a second end portion, a permeable, the permeable section adapted to allow a volume of pressurized fluid to pass from within and outwardly through the tube, and a non-permeable section adapted to substantially prevent the volume of pressurized fluid from passing from within and outwardly through the tube, wherein permeable and non-permeable sections are formed at least in part from a porous material with a plurality of pores; substantially blocking the pores along the non-permeable section with an insulator material such that the blocked pores are substantially non-permeable to the volume of fluid when the fluid is pressurized; securing the first and second end portions to a distal end portion of an elongate catheter body such that the fluid permeable tube forms at least in part a balloon which defines a pressurizeable chamber over the catheter body and which includes a working length that is adapted to expand from a radially collapsed condition to a radially expanded condition when the chamber is filled with the pressurized fluid, wherein the permeable section is positioned only along the working length; and coupling the pressurizeable chamber with a distal port of a fluid passageway that extends along the catheter body between the distal port and a proximal port along the proximal end portion of the elongate catheter body which is adapted to couple to a pressurizeable fluid source.