Title:
BLOOD VESSEL COVER
Document Type and Number:
WIPO Patent Application WO/2023/037860
Kind Code:
A1
Abstract:
To provide a blood vessel cover that can prevent intimal thickening by remodeling a vein into a buffer-system blood vessel. The present invention is a tubular blood vessel cover (10) which is disposed on the outer peripheral side of a vein (4) that is anastomosed to an artery (3) or to an artificial blood vessel, and which is continuous along the entire circumference of said cover. When a portion from the center (10c) to one end (10a) of the blood vessel cover (10) in the axial direction x of the blood vessel cover (10) is a first section (11) and a portion from the center (10c) to an opposite end (10b) is a second section (12), the diameter (d2) of a second virtual cylinder (T2) that has a central axis parallel to the central axis (C) of the blood vessel cover (10) and is inscribed in an inner wall of the second section (12) is greater than the diameter (d1) of a first virtual cylinder (T1) that has a central axis parallel to the central axis (C) of the blood vessel cover (10) and is inscribed in an inner wall of the first section (11).
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Inventors:
HAGIWARA AKEO (JP)
Application Number:
PCT/JP2022/031605
Publication Date:
March 16, 2023
Filing Date:
August 22, 2022
Export Citation:
Assignee:
HAGIWARA AKEO (JP)
KANEKA CORP (JP)
KANEKA CORP (JP)
International Classes:
A61M1/36; A61F2/06
Domestic Patent References:
| WO2021177273A1 | 2021-09-10 | |||
| WO2021161884A1 | 2021-08-19 |
Attorney, Agent or Firm:
USFI PATENT ATTORNEYS INTERNATIONAL OFFICE (JP)
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