Patent ID: 6918920

Claim:
A balloon catheter for intracorporeal therapeutic or diagnostic procedures, comprising: a. an elongated catheter shaft having a proximal catheter shaft section, a distal catheter shaft section, proximal and distal ends, a balloon on the distal catheter shaft section with an inflation chamber, a working section and proximal and distal balloon shaft sections, an inflation lumen extending within the catheter shaft to a location proximal to the distal end of the catheter and in fluid communication with the balloon inflation chamber, a guidewire receiving lumen extending along at least a portion of the distal shaft section to a port at the distal end of the catheter shaft; b. a distal tip member on the distal catheter shaft section which has proximal and distal end, which is secured by its proximal end to a distal end of the portion of the catheter shaft extending through the inflation chamber and having at least part of the guidewire lumen and which has an inner lumen in fluid communication with the guidewire receiving lumen; c. a flexible sleeve disposed about the distal shaft section and secured at least to the proximal end of the distal tip member.