Patent ID: 8632580
Filing Date: 2014-01-21
Classification: A61F

Abstract:
1. An endoprosthesis defining a longitudinal axis and configured to have a radially compacted state within a delivery device and a radially expanded state when deployed within a body passage, the endoprosthesis comprising: a metallic film having a thickness of about 50 μm or less, the metallic, film comprising a plurality of first apertures and a plurality of second apertures, the first and second apertures respectively oriented generally perpendicular to one another, wherein each first aperture is configured to (a) define an opening when the delivery device is in the radially compacted state and (b) define a substantially closed slit when the delivery device is in the radially expanded state, and wherein each second aperture is configured to (a) define a substantially closed slit when the delivery device is in the radially compacted state and (b) define an opening, when the delivery device is in the radially expanded state.