Patent ID: 9017350
Filing Date: 2015-04-28
Classification: A61B

Abstract:
1. An apparatus for treating a hollow anatomical structure, said apparatus comprising: an implant comprising a plurality of loose, non-knit, non-woven, bioabsorbable fibers arranged generally parallel to each other and extending along a longitudinal axis of said implant, each of said fibers having a number of bends along the length of the fiber, the bends providing the fiber with a greater transverse width than a fiber without bends, the bends also providing resilience to the fiber such that in a first state the fiber has a shorter length and a greater transverse width than in a second state where the fiber has a longer length and a smaller transverse width, each fiber configured for self-expansion, independent of the other fibers of the implant, in a lateral dimension transverse to the longitudinal axis through a change in shape from the second state to the first state, where the bends along the length are more pronounced in the first state compared to the second state, each of said fibers having a denier of about 0.1 to about 10; said implant configured to have a compressed state in which said implant can fit within a cylindrical tube having an inside diameter of 8 French or less; said plurality of fibers being formed into an elongate bundle of fibers comprising at least about 500 fibers and configured to be laterally expandable, due to the aggregate, unassisted self-expandability of the individual fibers, from said second state to said first state in which said implant is configured to span and conform to the inside diameter of a hollow anatomical structure having an inside diameter of 12 French or greater; said implant configured to provide a high void content scaffold within the hollow anatomical structure and to allow blood infiltration into the voids.