US 11,697,004 B2
Method of manufacturing a balloon catheter
Yoshihiko Sano, Osaka (JP); Yasushi Ooyama, Osaka (JP); and Katsuhiro Hiejima, Osaka (JP)
Assigned to NIPRO CORPORATION, Osaka (JP)
Filed by NIPRO CORPORATION, Osaka (JP)
Filed on Feb. 18, 2020, as Appl. No. 16/793,164.
Application 16/793,164 is a continuation of application No. 15/554,725, abandoned, previously published as PCT/JP2016/064121, filed on May 12, 2016.
Claims priority of application No. 2015-099712 (JP), filed on May 15, 2015.
Prior Publication US 2020/0179662 A1, Jun. 11, 2020
Int. Cl. A61M 25/10 (2013.01); A61F 2/958 (2013.01); A61M 25/00 (2006.01); B29L 31/00 (2006.01)
CPC A61M 25/1036 (2013.01) [A61F 2/958 (2013.01); A61M 25/10 (2013.01); A61M 25/104 (2013.01); A61M 25/1018 (2013.01); A61M 25/1029 (2013.01); A61F 2002/9583 (2013.01); A61M 25/0029 (2013.01); A61M 25/0053 (2013.01); A61M 2025/0034 (2013.01); A61M 2025/1031 (2013.01); A61M 2025/1084 (2013.01); A61M 2025/1086 (2013.01); B29L 2031/7543 (2013.01)] 12 Claims
OG exemplary drawing
 
1. 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.