Single, continuous PTFE layers having lateral zones (60,62) of varied characteristics are described. Some of the lateral zone embodiments may include PTFE material having little or no nodal and fibril microstructure. Methods of manufacturing PTFE layers allow for controllable permeability and porosity of the layers, in addition to other characteristics. The characteristics may vary from one lateral zone of a PTFE layer to a second lateral zone of a PTFE layer. In some embodiments, the PTFE layers may act as a barrier layer in an endovascular graft or other medical device.
申请公布号
WO2006113082(A1)
申请公布日期
2006.10.26
申请号
WO2006US11682
申请日期
2006.03.30
申请人
BOSTON SCIENTIFIC SANTA ROSA CORPORATION;HUMPHREY, JOSEPH, W.;SKIBA, JEFFRY, B.