Patent ID: 8551133

Claim:
A balloon catheter integrally accommodating a guidewire, comprising: a catheter body that includes a balloon, an inflation lumen for supplying a fluid for dilating the balloon and a guidewire lumen for accommodating the guidewire; a core shaft inserted in the guidewire lumen; a front end coil part formed of at least one wound strand and surrounding a front end portion of the core shaft extending from a front end of the catheter body; a transition part made of resin that is provided between a rear end of the front end coil part and a front end of the catheter body and smoothly connects an external shape of the front end coil part and an external shape of a front end portion of the catheter body; and a joint bonded to the rear end of the front end coil part and the front end portion of the core shaft, wherein the transition part is in contact with the joint, and the joint is rotatable relative to the transition part.