Bifurcated stent graft and apparatus for making same
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United States of America Patent
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Issued Date -
Dec 8, 2005
app pub date -
Jun 8, 2004
filing date -
Jun 8, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention includes a tool for forming an intravascular device such as a bifurcated stent graft. The tool includes a plurality of tool pieces wherein at least one tool piece is removably attached to another tool piece, and an external surface for assisting in forming the intravascular device. The tool may be used to form a stent graft by applying a first layer of biocompatible material over an external surface of the tool, applying a support structure over the first layer, and applying a second layer of biocompatible material over the support structure and the first layer. The present invention also includes two-piece stent grafts that may permit the mechanical attachment of one piece to another, and further includes bifurcated stent grafts having a support structure for loading the stent graft into a catheter with less bunching of the graft material than in conventional devices.
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