Method of manufacturing a balloon catheter
AssigneeNipro Corporation
InventorsYoshihiko Sano, Yasushi Ooyama, Katsuhiro Hiejima
Life of this patent
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Abstract
To provide a new balloon catheter enabling formation of, with high dimensional accuracy and excellent shape adaptability with respect to a balloon, an additional structure such as a blade and a reinforcement member to be additionally provided to the balloon. In this balloon catheter 10 provided with an expandable/contractible balloon 14 on the distal end side of a catheter 12, an additional structure 36 having a prescribed pattern is formed through electroforming or the like directly onto an inner circumferential surface 34 and/or an outer circumferential surface 82 of the balloon 14.
Claims12
A method of manufacturing a balloon catheter including a balloon provided on a distal end side of a shaft, comprising:
- forming the balloon of a deformable synthetic resin;
- applying a curable metal paste layer with a resin material mixed therein to a formation surface of the balloon so as to form an additional structure directly on the formation surface as a result of the application, wherein the applying comprises at least one of thermal spraying and vacuum deposition, the resin material exhibits a fixation force in relation to the balloon, the additional structure is formed in a prescribed pattern directly on the formation surface, and the formation surface is a surface of at least one of an inner circumferential surface of the balloon and an outer circumferential surface of the balloon;
- and
- performing cooling treatment of the balloon to a surface opposite the formation surface of the balloon during the applying via at least one of thermal spraying and vacuum deposition.
Dependencies are inferred from the claim text.