Patent ID: 6027475
Filing Date: 2000-02-22
Classification: A61L,A61M

Abstract:
An elongated dilatation catheter for performing an angioplasty procedure, comprising:a) an elongated catheter shaft having proximal and distal ends, a distal guidewire port in the distal end, an inflation port spaced proximal to the distal end, a guidewire receiving inner lumen extending therein to the distal guidewire port in the distal end and an inflation lumen extending therein to inflation port;b) an inflatable dilatation member mounted on the catheter shaft proximal to the distal end of the catheter shaft for performing an angioplasty procedure which has an interior in fluid communication with the inflation lumen through the inflation port; andc) a flexible distal catheter shaft section which is proximal to the inflatable dilation member, which has a length of at least about 4 cm and which is formed of an extruded dual lumen tubing with an oblong transverse shape with a first transverse dimension in a first direction substantially greater than a second transverse dimension in second direction perpendicular to the first direction.