| 摘要 |
<p>The present invention includes a tool (10) for forming an intravascular device such as a bifurcated stmt graft. The tool includes a plurality of tool pieces (12, 14, 16, 18) wherein at least one tool piece is removal y attached to another tool piece, and an eternal surface for assisting in forming the intravascular device. The tool may be used to form a stmt 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 stmt grafts that may permit the mechanical attachment of one piece to another, and further includes bifurcated stmt grafts having a support structure for loading the stmt graft into a catheter with less bunching of the graft material than in conventional devices.</p> |
