发明名称 |
STENT AND TREATMENT DEVICE FOR TUBULAR ORGAN |
摘要 |
The present invention provides a stent and tubular organ treatment device that can flexibly deform according to a curved portion of a tubular organ, contracts less in the longitudinal direction during insertion, and is easy to handle. A stent (1) is formed into a tubular form by arranging five tubular unit bodies in an axial direction and connecting them by a connecting filament (F). Each tubular unit is formed into a closed loop by cutting a metal wire to a predetermined length, bending it in a zigzag manner in a peripheral direction, and securely connecting both ends thereof. A tubular unit body (W) having two bent portions projected in the axial direction is connected to and rockably retained by a tubular unit body (U1). Similarly, a tubular unit body (V) is rockably retained by the tubular unit body (W), whereby the entire stent can easily deform into a curved shape. Shape-retaining members (X1) and (X2) composed of a shape memory alloy material are attached in the axial direction to the tubular unit bodies to maintain them in a curved state. |
申请公布号 |
EP2113229(A1) |
申请公布日期 |
2009.11.04 |
申请号 |
EP20080703599 |
申请日期 |
2008.01.22 |
申请人 |
NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF FUKUI;SAPPORO MEDICAL UNIVERSITY |
发明人 |
SAKAI, TOYOHIKO;HYODOH, HIDEKI |
分类号 |
A61F2/04;A61F2/06;A61F2/89;A61M29/02 |
主分类号 |
A61F2/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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