Manufacture of balloon catheter

Abstract

Abstract PURPOSE:To stabilize a surface condition and shape in a fusion part so as to ensure a firm fusion condition by contracting a heat-shrinkable tube around the periphery of a balloon tube and fusing its both end parts to a catheter. CONSTITUTION:In the case of coating a shaft tube 12 with a balloon tube 20, a peripheral part of the balloon tube 20 for coating the shaft tube 12 is coated with a heat-shrinkage tube 30 in a floating-inserted condition by first coating a tip end peripheral part of the shaft tube 12 with the balloon tube 20. Next, the heat-shrinkable tube 30 is contracted by giving hot air to its both end parts. Both end parts of the balloon tube 20 are respectively fused to the peripheral parts of the shaft tube 12 by heating both the end parts of the balloon tube 20, which are restrited to the parts of the shaft tube 12 by the contracted heat- shrinkable tube 30. And then, the heat-shrinkable tube 30 is removed from the surface of the balloon tube 20.

Inventors

• 👤 Michio Takeoka
• 👤 竹岡　教夫

Bibliographic Details