BALLOON CATHETER AND METHOD FOR MANUFACTURING CATHETER SHAFT AND BALLOONUSED THEREIN

摘要

A balloon catheter used in PTCA (Percutaneous Translumin Coronary Angioplasty), a catheter shaft for the catheter and a method of production of a balloon. The balloon catheter includes a catheter shaft (1A) comprising a multi-lumen shaft inclusive of a dual lumen tube and a balloon (2) disposed at the remotest end of the catheter shaft (1A). The catheter shaft (1A) is equipped with at least a guide wire lumen (4A) and an inflation lumen (4B), and is made of a resin material having a bending modulus contributing to push force transmission property and curved route follow-up property. A resin material layer (tube (5)) having high lubrication property and surface energy of not greater than 50 dyn/cm is disposed on the inner surface of the guide wire lumen (4A).