Technique for expanding tubular structures
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United States of America Patent
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Feb 10, 2004
Grant Date -
Jun 19, 2003
app pub date -
Dec 17, 2001
filing date -
Dec 17, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A system for expanding tubular structures. The system comprises a mandrel that is moved through the center of a tubular structure to increase the diameter of the tubular structure via deformation. The system utilizes an expansion device having a mandrel with multiple segments moved between a contracted state and an expanded state. In one embodiment, the mandrel segments are spring biased to permit a degree of independent movement of each mandrel segment with respect to the other mandrel segments.
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