Apertured multilayer balloon catheter system

An apertured balloon catheter for delivering therapy within a body-tube, the apertured balloon catheter comprising:

• an internal conduit that has a hollow core for accepting a guide wire;
• a longitudinal body having a proximal segment affixed to one end of the internal conduit and having a first proximal layer and a second proximal layer, a distal segment affixed to a distal second end of the internal conduit and having a first distal layer and a second distal layer, a central segment affixed at one end to the proximal segment and at a second distal end to the distal segment, the central segment having a first central layer, a second central layer, and a third central layer;
• a proximal space is between the first proximal layer and the second proximal layer, a distal space is between the first distal layer and the second distal layer, a central space is between the first central layer and the second central layer, a second central space is between the second central layer and the third central layer;
• a first conduit is fluidly interfaced to the proximal space, to the distal space, and to the central space for delivering a fluid for inflation;
• a second conduit is fluidly interfaced to the second central space for delivering the fluid for the inflation;
• a first set of apertures are formed between the first proximal layer and the second proximal layer;
• and
• a second set of apertures are formed between the first distal layer and the second distal layer.

A method for delivering therapy within a body-tube, the method comprising:

• providing an apertured balloon catheter comprising:
• an internal conduit that has a hollow core for accepting a guide wire;
• a longitudinal body having a proximal segment affixed to one end of the internal conduit and having a first proximal layer and a second proximal layer, a distal segment affixed to a distal second end of the internal conduit and having a first distal layer and a second distal layer, a central segment affixed at one end to the proximal segment and at a second distal end to the distal segment, the central segment having a first central layer, a second central layer, and a third central layer;
• a proximal space is between the first proximal layer and the second proximal layer, a distal space is between the first distal layer and the second distal layer, a central space is between the first central layer and the second central layer, a second central space is between the second central layer and the third central layer;
• a first conduit is fluidly interfaced to the proximal space, to the distal space, and to the central space for delivering a fluid for inflation;
• a second conduit is fluidly interfaced to the second central space for delivering the fluid for inflation;
• a first set of apertures are formed between the first proximal layer and the second proximal layer;
• and
• a second set of apertures are formed between the first distal layer and the second distal layer;
• positioning a guide wire in a body-tube;
• threading an end of the guide wire through the hollow core of the apertured balloon catheter;
• guiding the apertured balloon catheter into the body-tube along the guide wire;
• pushing the apertured balloon catheter through the body-tube until the apertured balloon catheter is positioned at a desired location;
• and
• injecting the fluid under pressure into the first conduit and into the second conduit, thereby the apertured balloon catheter expands within the body-tube such that the apertured balloon catheter at least touches inner walls of the body-tube or applies force against the inner walls of the body-tube, thereby expanding the body-tube.