Ligating structure having greater stretchability, greater shelf life, and greater ligating characteristics and method of manufacture
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United States of America Patent
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May 23, 2000
Grant Date -
N/A
app pub date -
Mar 19, 1998
filing date -
Mar 19, 1998
priority date (Note) -
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Abstract
A ligating band is formed so as to have a pre-stress compression along its inner periphery and a pre-stress tension along its outer periphery at a free state, wherein all the material of the band is at a substantially equal tension when the band is subject to full circumferential expansion. In a free state, the inner periphery can buckle, at least partially filling an inner perimeter defined by the inner periphery with a plurality of material folds.
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