BALLOON CATHETER AND BALLOON ARRANGEMENT METHOD

WIPO Patent Application WO/2020/196231

A1

[Problem] To provide a balloon catheter and a balloon arrangement method, whereby the peeling of a drug coated on the outer surface of a balloon can be suppressed. [Solution] A balloon catheter 10 that has a balloon 30 arranged inside a protective tube 15. The balloon 30 has a drug coated on the outer surface thereof and has a plurality of feathers 32 that are folded and protrude towards the outside in the radial direction. The feathers 32 have a feather tip 51, a feather base 53, and a feather center section 52. The feather tips 51 are formed such that the inner surfaces thereof are mutually separated. Feather tip outside sections 51A are in contact with the inner circumferential surface of the protective tube 15 and feather tip inside sections 51B have a first contact section 54 that is in contact with a second contact section 55 of another feather 32. In a cross-section intersecting the longitudinal axis of an inner tube 22, the outer surface of a balloon 30 extending between a first contact section 54 and a second contact section 55 that are in mutual contact is arranged so as to surround one inner area 56.

KUROSAKI YASUO (JP)
GOTO HIROSHI (JP)

PCT/JP2020/012227

October 01, 2020

March 19, 2020

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TERUMO CORP (JP)

A61M25/10

WO2017164281A1	2017-09-28
WO2015122218A1	2015-08-20

US20070129748A1	2007-06-07
US20030083579A1	2003-05-01
US20110099789A1	2011-05-05
US20090299283A1	2009-12-03

YAMADA, Makito (JP)

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