Title:
構造がフィットする経カテーテル大動脈弁植え込み装置
Document Type and Number:
Japanese Patent JP7407482
Kind Code:
B2
Abstract:
An aortic valve implantation device that is delivered through a catheter and does not depend only on friction for fixation. According to the device, multiple supporting arms (50) are provided on an intermediate portion (102) of a tubular body (105); the supporting arms are "D"-shaped after fully expansion, and are fixed between a narrowest part (73) of the aorta close to the heart and a narrowest part (74) on an aortic annulus (70), so as to achieve sufficient match between the outer surfaces of the support arms (50) and surrounding tissues; each supporting arm (50) comprises three landing areas (54) and two bending sections (59). The present invention can accurately control the position of a valve to be released on the aortic annulus (70), and thus, adverse events caused by existing fixation relying solely on friction are avoided, thereby better curing aortic valve diseases.
Inventors:
馬▲チェン▼明
Application Number:
JP2022551425A
Publication Date:
January 04, 2024
Filing Date:
October 16, 2020
Export Citation:
Assignee:
Nanjing Shengde Medical Technology Co., Ltd.
International Classes:
A61F2/24
Domestic Patent References:
| JP2013539391A |
Foreign References:
| WO2016055262A1 | ||||
| CN107890382A | ||||
| WO2019224577A1 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK