发明名称 |
CATHETER HAVING IMPROVED BONDING REGION |
摘要 |
A catheter having a flexible outer tube and a lubricious inner tube bonded within the flexible outer tube. One catheter has a distal outer tube formed of a substantial portion of a first, flexible material, an inner tube having a lubricious inside wall surface formed of a second, lubricious material, and an outer tube wall surface compatible with heat bonding the inner tube outside wall surface to the outer tube wall surface. A preferred flexible material is polyether block amide (PEBA), and a preferred lubricious material is polyethylene. One catheter utilizing the invention includes a flexible distal outer tube having an orifice through the tube wall and an inner tube inserted through the orifice having a lubricious inner layer surrounded by a tie-layer, surrounded in turn by the same flexible material forming the outer tube. One catheter has a PEBA outer tube heat bonded to a tri-layer inner guide wire tube formed of a polyethylene inner layer, a PEBA outer layer, and a PLEXAR3 tie-layer disposed between the inner and outer layers.
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申请公布号 |
WO0024450(A1) |
申请公布日期 |
2000.05.04 |
申请号 |
WO1999US24689 |
申请日期 |
1999.10.21 |
申请人 |
SCIMED LIFE SYSTEMS, INC. |
发明人 |
STIVLAND, TIMOTHY, M.;KHOURY, ELIAS, A. |
分类号 |
A61M25/00;A61F2/958;A61L29/00;A61M25/16;A61M29/02;(IPC1-7):A61M29/02 |
主分类号 |
A61M25/00 |
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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