| 摘要 |
An apparatus and method for anchoring an elongated object, for example a wire, in tubular body vessel, such as arteries, veins, the colon, bile ducts, etc. are disclosed. The wire may be a catheter, a guide wire, a tube or an electrical lead. In one embodiment, a fixation device is advanced over the wire and, upon external actuation, either deforms the wire or deploys an anchoring mechanism so as to secure the wire against the vessel wall. The anchoring mechanism can be easily removed from the vessel even in the presence of vessel occlusion. In another embodiment, a wire tensioned between two locations on a distal section of the wire deforms the wire and urges the wire into wall apposition.
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