Serpentine coiled ladder stent
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United States of America Patent
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Mar 12, 2002
Grant Date -
N/A
app pub date -
Dec 3, 1998
filing date -
Dec 3, 1998
priority date (Note) -
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Abstract
A serpentine coiled ladder stent is provided, in which the coil is formed from a wound strip of cells, wherein the sides of the cells are serpentine. Thus, the stent is comprised of a strip helically wound into a series of coiled windings, wherein the strip is formed of at least two side bands connected to each other, for example by a series of cross struts. Each side band is formed in a serpentine pattern comprising a series of bends, wherein upon expansion of the stent, the bends of the side bands open to increase the length of each of the individual cells in the helical direction, thereby lengthening the strip in the helical direction to allow the stent to expand without any significant unwinding of the strip.
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