Methodological process below, namely, proximal sleeve being the process which produces the balloon itself 2 which possesses 5 and distal (2036) sleeve 6, the movement section 3 and 4 the aforementioned balloon itself 2 and each sleeve extending the process which has been present and, includes with the process which at least forms fold 7 in distal (2036) sleeve 6 and the process which at least locks the distal (2036) section of fold 7 of distal (2036) sleeve 6 with 5 and 6, production method of balloon 1 of the balloon catheter.以下の方法工程、即ち、近位スリーブ5および遠位スリーブ6を有するバルーン本体2を作製する工程であって、移行セクション3、4が前記バルーン本体2と各スリーブ5、6との間に延在している工程と、少なくとも遠位スリーブ6に折り目7を形成する工程と、少なくとも遠位スリーブ6の折り目7の遠位セクションを固定する工程とを含む、バルーンカテーテルのバルーン1の製造方法。
