Radially expandable tubular polytetrafluoroethylene grafts and method of making same
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United States of America Patent
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Mar 21, 2000
Grant Date -
N/A
app pub date -
Feb 5, 1997
filing date -
Feb 5, 1997
priority date (Note) -
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Abstract
Tubular ePTFE materials which are capable of being radially expanded under the influence of a radially outward force applied from the lumen of the ePTFE tubular material to substantially uniformly radially deform the ePTFE material. The ePTFE material is radially expandable to a diameter 700% its unexpanded diameter under the influence of pressures less than 6 atm while retaining the structural integrity of the ePTFE microstructure. Conservation of the structural integrity of the ePTFE material is determined by conservation of the ePTFE microstructure structural integrity.
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