Patent ID: 7343875

Claim:
A catheter useful for creating a pathway in a tract of a mammal for the introduction of a desired fluidic material, the catheter comprising: a tube configured to be inserted into a tract of a mammal, said tube having a proximal end opening for the introduction of a desired fluidic material into said tube, and a distal end opening for discharge of said fluidic material; a nozzle securely affixed to said tube in the vicinity of said distal end opening of said tube; and, a thin flexible single-walled membrane initially positioned to extend inside said tube from a first end securely affixed to said tube in the vicinity of said distal end opening of said tube, said first end of said membrane defining a first end opening in fluid communication with said distal end opening of said tube, said membrane having a second opening at a distal tip thereof, wherein during operation of said catheter the tube is inserted to a desired location in the tract of the mammal and the fluidic material is then introduced into said tube via said proximal end opening of said tube, the pressure of the fluid's introduction into said tube causing said flexible membrane to incrementally pass through the distal end opening of the tube so as to unfold in an inside out manner and extend within the tract releasing fluidic material through said opening at said distal tip.