Title:
MANUFACTURING METHOD OF TUBULAR SHAFT, AND CATHETER
Document Type and Number:
Japanese Patent JP2023137531
Kind Code:
A
Abstract:
To provide a manufacturing method of a tubular shaft, capable of shortening a manufacturing time and reducing costs, and to provide a catheter.SOLUTION: A manufacturing method of a medical tubular shaft 2 having a lumen 5 penetrating from a tip to a base end includes the steps of: arranging a plurality of tubular bodies 100 having inner layers 10 for forming the lumen 5; applying a contrasting fluid 120 containing an X-ray impermeable material having flowability and a resin material to the outer peripheral surface of the aligned plurality of tubular bodies 100 together; hardening the contrasting fluid 120; and separating the plurality of tubular bodies 100 and forming in each of the tubular bodies 100, an X-ray impermeable contract part 30 arranged by dividing into a plurality of portions in a circumferential direction around the shaft of the tubular body 100.SELECTED DRAWING: Figure 3
Inventors:
OTAKE YUHACHI
Application Number:
JP2022043780A
Publication Date:
September 29, 2023
Filing Date:
March 18, 2022
Export Citation:
Assignee:
TERUMO CORP
International Classes:
A61M25/00
Attorney, Agent or Firm:
Makito Yamada
Koji Hirokawa
Koji Hirokawa