Title:
薬剤投与カテーテル
Document Type and Number:
Japanese Patent JP7381201
Kind Code:
B2
Abstract:
To provide a medication catheter capable of delivering a drug to a lesioned site without any leakage and effectively administering the drug while expanding the lesioned site firmly.SOLUTION: A medication catheter 10 includes: an elongated catheter body 20 having an expansion lumen 23 through which a fluid can flow; and a balloon 30 arranged on a distal end side of the catheter body 20. The balloon 30 includes: a first balloon portion 50 capable of forming a first space 56 communicating with the expansion lumen 23 between the balloon and the catheter body 20; and a second balloon portion 60 arranged to cover the first balloon portion 50 and capable of forming a second space 66 between the second balloon portion and the first balloon portion 50. The first balloon portion 50 has an opening portion 59 in which the first space 56 and the second space 66 are opened by an increase of the internal pressure due to the fluid at the time of expansion. The second balloon portion 60 has pores 67 capable of discharging the fluid to the outside of the second balloon portion 60.SELECTED DRAWING: Figure 4
Inventors:
Ryutaro Nishigaya
Application Number:
JP2018237907A
Publication Date:
November 15, 2023
Filing Date:
December 20, 2018
Export Citation:
Assignee:
Terumo Corporation
International Classes:
A61M25/10
Domestic Patent References:
| JP2011527601A | ||||
| JP2015163088A | ||||
| JP2016052404A |
Foreign References:
| US5213576 | ||||
| US5358487 |
Attorney, Agent or Firm:
Makito Yamada
Koji Hirokawa
Koji Hirokawa
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