Title:
BALLOON CATHETER
Document Type and Number:
Japanese Patent JP2023006823
Kind Code:
A
Abstract:
To provide a balloon catheter effectively eliminating a rigidity gap between components.SOLUTION: A balloon catheter 10 according to the present invention comprises a metal proximal tube 1, a coil member 2 attached to a tip side of the proximal tube 1 and formed by spirally winding at least one metal wire, a resin outer tube 3 connected to the tip side of the proximal tube 1 so as to cover the coil member 2, and a balloon 5 connected to the tip side of the outer tube 3. The coil member 2 includes a plurality of joint portions 22 formed by joining adjacent metal wires 21 continuously in the circumferential direction. An interval of two adjacent joint portions 22 is gradually enlarged toward the tip side, so that rigidity of the tip side of the coil member 2 is lower than that of the base side.SELECTED DRAWING: Figure 2
Inventors:
ISHIKAWA AKANE
KATSURADA TAKEJI
AKASAKA YUKIYA
KATSURADA TAKEJI
AKASAKA YUKIYA
Application Number:
JP2021109645A
Publication Date:
January 18, 2023
Filing Date:
June 30, 2021
Export Citation:
Assignee:
ASAHI INTECC CO LTD
International Classes:
A61M25/00; A61M25/01; A61M25/10
Attorney, Agent or Firm:
Ryota Sano
Keisuke Murasame
Keisuke Murasame