Flexible hoop and link sheath for a stent delivery system
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United States of America Patent
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Aug 6, 2002
Grant Date -
N/A
app pub date -
Oct 31, 2000
filing date -
Oct 31, 2000
priority date (Note) -
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Abstract
A delivery sheath including a series of longitudinally spaced apart retainer rings interconnected by flexible links. This configuration provides for sections of reduced cross-sectional area along the length of the sheath, thus increasing flexibility in those sections and in the overall sheath. The reduction of the cross-sectional area of the sheath also effectively reduces the area of contact between the inside surface of the sheath and the outside surface of the compressed stent. This reduction in contact area serves to reduce the frictional force generated as the sheath is retracted relative to the stent during deployment.
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