Patent ID: 9039724
Filing Date: 2015-05-26
Classification: A61B

Abstract:
1. A multi-layer occluder for treating a target site within the body, the occluder comprising: a first layer comprising braided strands of metallic material; and a second layer coupled to said first layer and comprising braided strands of polymeric material, wherein at least one of said first or second layers is configured to facilitate thrombosis, wherein said first and second layers are tubular in shape and are disposed in an overlying relationship with respect to one another along a common central axis extending therethrough, at least one of said first or second layers comprising at least one plane of occlusion oriented generally transverse to the central axis, and wherein said first and second layers are configured to be radially constrained to a reduced configuration in relation to the central axis through the application of external force and to subsequently assume an expanded configuration when the external force is removed, wherein the expanded configuration comprises a pair of disks oriented generally transverse to the central axis and a cylindrical portion extending therebetween, the pair of disks having a larger cross-sectional diameter than the cylindrical portion, and wherein the expanded configuration comprises a waist extending between one of the disks and the cylindrical portion for facilitating articulation therebetween, the waist having a smaller cross-sectional diameter than the cylindrical portion.