Methods and apparatus for stenting comprising enhanced embolic protection coupled with improved protections against restenosis and thrombus formation

Apparatus for stenting comprising:

• a web structure comprising a plurality of interconnected, neighboring web patterns, each web pattern having a plurality of adjoining webs, each adjoining web comprising a central section interposed between first and second lateral sections,
• the first lateral section joins the central section at a first obtuse angle less than 180°, and the second lateral section joins the central section at a second obtuse angle less than 180°, each central section has a longitudinal axis disposed at an oblique angle relative to a longitudinal axis of the web structure, longitudinal axes of adjacent central sections, circumferentially disposed about a web pattern of the plurality of web patterns, intersect, and adjacent ones of the neighboring web patterns, adjacently disposed along the longitudinal axis of the web structure, have alternating concavity;
• and
• a biocompatible material layer attached to at least a portion of the web structure along discrete points or defined planes,
• wherein a biocompatible material of the biocompatible material layer comprises pores along its entire length, the pores being dimensioned for enabling endothelial cell in-growth while preventing passage of emboli larger than a predetermined size, the pores having diameters larger than approximately 30 μm and smaller than approximately 100 μm.

Apparatus for stenting comprising:

• a stent having a web structure configured for expansion from a delivery configuration to an expanded deployed configuration, the web structure comprising a plurality of interconnected, neighboring web patterns, each web pattern having a plurality of adjoining webs, each adjoining web comprising a central section interposed between first and second lateral sections,
• the first lateral section joins the central section at an obtuse angle, each central section has a longitudinal axis disposed at an oblique angle relative to a longitudinal axis of the tubular body of the stent, longitudinal axes of adjacent central sections intersect, circumferentially disposed about a web pattern of the plurality of web patterns, and adjacent ones of the neighboring web patterns, adjacently disposed along the longitudinal axis of the tubular body of the stent, have alternating concavity;
• and
• a biocompatible material layer of Polyethylene Tetraphthalate, the biocompatible material layer comprising pores that are smaller in diameter than apertures of the stent, the pores have diameters larger than approximately 30 μm and smaller than approximately 100 μm;
• and
• at least one radiopaque feature located at or near at least one of a distal end and a proximal end of the stent.