Methods and apparatus for stenting comprising enhanced embolic protections coupled with improved protections against restenosis and trombus formation
First Claim
1. A method of reducing thrombus formation in a vessel of a vasculature comprising:
- providing an apparatus having a tubular expandable member and a membrane, the tubular expandable member having inner and outer surfaces and proximal and distal ends, the membrane being disposed about the tubular member, the membrane including a plurality of pores;
coupling the tubular member to a delivery system;
advancing the tubular member in a collapsed delivery configuration within the vessel; and
deploying the apparatus from a collapsed configuration to an expanded configuration in which the apparatus engages a wall of the vasculature at a treatment site, the membrane providing a smooth surface for fluid flow.
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Accused Products
Abstract
Apparatus and methods for stenting are provided comprising a stent attached to a porous biocompatible material that is permeable to endothelial cell ingrowth, but impermeable to release of emboli of predetermined size. Preferred stent designs are provided, as well as preferred manufacturing techniques. Apparatus and methods are also provided for use at a vessel branching. Moreover, embodiments of the present invention may comprise a coating configured for localized delivery of therapeutic agents. Embodiments of the present invention are expected to provide enhanced embolic protection, improved force distribution, and improved recrossability, while reducing a risk of restenosis and thrombus formation.
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Citations
16 Claims
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1. A method of reducing thrombus formation in a vessel of a vasculature comprising:
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providing an apparatus having a tubular expandable member and a membrane, the tubular expandable member having inner and outer surfaces and proximal and distal ends, the membrane being disposed about the tubular member, the membrane including a plurality of pores;
coupling the tubular member to a delivery system;
advancing the tubular member in a collapsed delivery configuration within the vessel; and
deploying the apparatus from a collapsed configuration to an expanded configuration in which the apparatus engages a wall of the vasculature at a treatment site, the membrane providing a smooth surface for fluid flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. The method according to claim 16, further including the step of recrossing a lumen of the stent with a balloon catheter and of expanding the balloon within the lumen of the stent.
Specification