US 12,005,211 B2
Method for producing balloon catheter
Masayasu Shimaru, Settsu (JP)
Assigned to KANEKA CORPORATION, Osaka (JP)
Appl. No. 17/437,639
Filed by KANEKA CORPORATION, Osaka (JP)
PCT Filed Feb. 5, 2020, PCT No. PCT/JP2020/004424
§ 371(c)(1), (2) Date Sep. 9, 2021,
PCT Pub. No. WO2020/184004, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 2019-047523 (JP), filed on Mar. 14, 2019.
Prior Publication US 2022/0176086 A1, Jun. 9, 2022
Int. Cl. A61M 25/10 (2013.01)
CPC A61M 25/1029 (2013.01) [A61M 25/1034 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for producing a balloon catheter having a shaft extending in a distal-proximal direction and a balloon provided on a distal side of the shaft, the method comprising:
a tubular body placement step of placing a resin tubular body inside a mold;
a mold placement step of placing the mold inside a heating jacket so that the mold is heated by the heating jacket;
a heating step of heating the heating jacket;
an elongation start step of starting elongating the resin tubular body in a lengthwise direction thereof;
an elongation end step of ending elongating the resin tubular body; and
a heating end step of ending heating the heating jacket, wherein
the heating end step is performed before the elongation end step.