The present invention relates to a catheter balloon manufacturing jig for manufacturing a catheter balloon using a tube material, which has a cylindrical shape having a center molding portion in an intermediate portion for molding the center portion of the balloon. The center jig member and the center jig member are provided so as to be able to be drawn in and drawn out in the length direction through one end open portion of the center jig member, and between the one end portion of the balloon and the center portion of the balloon so as to form a taper shape between them. A first side jig member for forming a first taper portion and a center jig member are provided such that they can be drawn in and pulled out in the length direction through the other end opening portion of the center jig member, and the other end portion of the balloon and the center of the balloon. And a second side jig member for molding the second tapered portion between the portions so that the portions are tapered. [Selection diagram] Figure 1本発明は、チューブ素材を利用してカテーテル用風船を製造するためのカテーテル用風船の製造治具であって、前記風船の中心部を成形するために中間部分にセンター成形部を有するシリンダー形状のセンター治具部材と、前記センター治具部材の一端開放部を通じてその長さ方向に引入・引出可能に具備され、前記風船の一端部と前記風船の中心部間がテーパ状になるようにその間に第１テーパ部を成形する第１サイド治具部材と、前記センター治具部材の他端開放部を通じてその長さ方向に引入・引出可能に具備され、前記風船の他端部と前記風船の中心部間がテーパ状になるようにその間に第２テーパ部を成形する第２サイド治具部材とを含む。【選択図】図１
