Selective adherence of stent-graft coverings, mand

专利名称：Selective adherence of stent-graft coverings,

mandrel and method of making stent-graftdevice

发明人：Tarun J. Edwin,Scott L. Randall,Brendan

McCrea,Christopher E. Banas

申请号：US097811申请日：20010116

公开号：US20010010012A1公开日：20010726

摘要：A method for selectively bonding layers of polymeric material, especiallyexpanded polytetrafluoroethylene (ePTFE), to create endoluminal vascular devices. In apreferred method the selective bonding is achieved by applying pressure to selectedareas using a textured mandrel. This permits a stent device to be encapsulated betweentwo layers of ePTFE with unbonded slip pockets to accommodate movement of thestructural members of the stent. This allows stent compression with minimal force andpromotes a low profile of the compressed device. Unbonded regions of ePTFE allowenhanced cellular penetration for rapid healing and can also contain bioactive substancethat will diffuse through the ePTFE to treat the vessel wall.

申请人：IMPRA, INC., A SUBSIDIARY OF C.R. BARD, INC.

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