Tube with reverse necking properties
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United States of America Patent
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Aug 12, 2014
Grant Date -
Sep 12, 2013
app pub date -
Apr 18, 2013
filing date -
Jul 15, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An improved tubular structure adapted to increase in diameter upon application of axial force is provided. Increase in diameter is achieved by constructing the tube from multiple layers of material that move relative to each other during axial elongation of the tube. The tube of the present invention can be used both to avoid problems in “necking” found in many prior tube devices, and to provide additional benefits that increases in diameter of the tube during axial elongation can provide. As such, the tube of the present invention may be useful as a manufacturing aid, as a deployment sheath (for example, to deliver medical devices), and in other applications that may benefit from easier tubular sheath removal.
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