Title:
BALLOON CATHETER
Document Type and Number:
WIPO Patent Application WO/2023/085112
Kind Code:
A1
Abstract:
Provided is a solution for conflicting needs between improving ease in insertion of a balloon into a body cavity and fixing a balloon to a cavity wall so as not to slide thereon at a lesion, such as at a narrow portion. This balloon catheter has a shaft and a balloon body. The balloon body comprises a straight tube part, a distal-side tapered part, and a proximal-side tapered part. The straight tube part has a protrusion formed area (41) which has a protrusion (60) formed therein and a protrusion not-formed area (42) in which a protrusion (60) is not formed. A hydrophilic coating layer (70) is formed at a boundary part (43) that encompasses a portion of the protrusion formed area (41) and a portion of the protrusion not-formed area (42). The hydrophilic coating layer (70) is not formed in at least a portion of an area that is in the protrusion formed area (41) but that is outside the boundary area (43).
Inventors:
KOJIMA MASAHIRO (JP)
HAMABUCHI TAKAHISA (JP)
HAMABUCHI TAKAHISA (JP)
Application Number:
PCT/JP2022/040209
Publication Date:
May 19, 2023
Filing Date:
October 27, 2022
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
A61M25/10
Domestic Patent References:
| WO2021049282A1 | 2021-03-18 | |||
| WO2020250611A1 | 2020-12-17 |
Foreign References:
| JP2020062062A | 2020-04-23 |
Attorney, Agent or Firm:
USFI PATENT ATTORNEYS INTERNATIONAL OFFICE (JP)
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