Title:
DISTAL STABILIZER FOR DELIVERY OF CATHETER WITHIN BIOLOGICAL LUMEN, SYSTEM FOR DELIVERING TREATMENT DEVICE, AND TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/004850
Kind Code:
A1
Abstract:
Provided is a distal stabilizer that can be excellently engaged with the inner wall of a biological lumen, and can be easily resheathed to a catheter. A distal stabilizer 1 is used to deliver a catheter within a biological lumen, and is provided with: a delivery wire 2; and an engagement stent 3 that extends from the distal end 21 of the delivery wire 2, and can be engaged with the inner wall of a biological lumen due to the self-expanding force thereof. The engagement stent 3 has open cells 41 each having a free protruding end 42 protruding to only the distal side D2. After a catheter delivery operation including advancing catheters including a second catheter 6 having a greater inner diameter than a first catheter 5 to the distal side D2 while the engagement stent 3 stored in a contracted state in the first catheter 5 is released from the first catheter 5 and engaged with the inner wall, the delivery wire 2 is moved backward to the proximal side D1 to remove the distal stabilizer 1 from the biological lumen, so that the engagement stent 3 is contracted and resheathed to any of the catheters 5, 6, 8.
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Inventors:
SHOBAYASHI KAZUYA (JP)
Application Number:
PCT/JP2021/024976
Publication Date:
January 06, 2022
Filing Date:
July 01, 2021
Export Citation:
Assignee:
SHOBAYASHI KAZUYA (JP)
International Classes:
A61F2/86; A61M25/00; A61F2/966; A61M25/01; A61M25/04; A61M25/06; A61M25/09
Foreign References:
| JP2018535736A | 2018-12-06 | |||
| US20160158500A1 | 2016-06-09 | |||
| JP2003506141A | 2003-02-18 | |||
| JP2017148158A | 2017-08-31 |
Attorney, Agent or Firm:
SEKIGUCHI Masao (JP)
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