Patent ID: 9211116
Filing Date: 2015-12-15
Classification: A61B

Abstract:
1. A distal anchor for an implantable fistula treatment device, the distal anchor comprising: a suture; and a plurality of foldable members, including at least a distal-most foldable member and a proximal-most foldable member; wherein the distal-most foldable member comprises a suture attachment structure; wherein the proximal-most foldable member is configured to couple to a surface of a body lumen at a distal opening of a fistula, wherein the proximal-most foldable member is configured to occlude the fistula at the distal opening, and wherein the proximal-most foldable member is configured to slide along the suture attached to the suture attachment structure; wherein the proximal-most foldable member comprises: wherein the distal-most foldable member comprises: wherein at least one of the plurality of foldable members comprises a protrusion on a first surface; and wherein at least another of the plurality of foldable members comprises a recess on a second surface that opposes the first surface, wherein the protrusion and the recess comprise complementary coupling members, such that the recess is configured to receive the protrusion to restrain relative movement of at least two of the plurality of foldable members.