发明名称 |
Stretch resistant vaso-occlusive coils |
摘要 |
<p>This is an implantable vaso-occlusive device. It is typically a vaso-occlusive coil comprised of a primary helically wound coil which may then be wound into a secondary shape. Central to the invention is the use of a stretch-resisting member fixedly attached within at least a portion of the primary coil. The stretch-resisting member may be formed into coil tips at the ends of the coil by melting the polymeric fibers or alloys or by attaching the fibers with a glue. This stretch-resisting member is for the primary purpose of preventing stretching of the coil during movement of that coil, e.g., by retrieval or repositioning after deployment. The device typically has a self-forming secondary shape made from a pre-formed primary linear helically wound coil, although it need not have the secondary form. External fibers may be attached to the device and affixed to the pre-formed linear member to increase. The vaso-occlusive member may be also be covered with a fibrous braid. The device is typically introduced into the body through a catheter. The device is passed axially through the catheter sheath and assumes its secondary form upon exiting the catheter. <IMAGE></p> |
申请公布号 |
AU679409(B2) |
申请公布日期 |
1997.06.26 |
申请号 |
AU19960056264 |
申请日期 |
1996.07.01 |
申请人 |
TARGET THERAPEUTICS, INC. |
发明人 |
CHRISTOPHER G M KEN;SON M GIA;ERIK T ENGELSON |
分类号 |
A61B17/00;A61B17/12;A61B19/00;A61F2/00;A61F2/84;(IPC1-7):A61B17/12;A61M29/00 |
主分类号 |
A61B17/00 |
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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