Patent ID: 6117106
Filing Date: 2000-09-12
Classification: A61M

Abstract:
A perfusion dilatation catheter, comprising:a) an elongated catheter shaft having a proximal end, a distal end, a port in the distal end, guidewire lumen extending within the elongated catheter shaft in fluid communication with the port in the distal end, an inflation lumen extending within the catheter shaft to a location spaced proximal to the distal end;b) a balloon on a distal shaft section of the elongated catheter shaft having an interior in fluid communication with the inflation lumen;c) a proximal portion of the distal shaft section which has a plurality of perfusion ports longitudinally located proximal to the balloon in fluid communication with the guidewire lumen and which has a high strength tubular element defining the inflation lumen disposed within a wall portion of the proximal perfusion portion with said wall portion in part depending into the guidewire lumen; andd) a distal portion of the distal shaft section located distal to the balloon; having a plurality of perfusion ports spaced proximal to the distal end in fluid communication with the guidewire lumen.