FISTULA TREATMENT DEVICES AND RELATED METHODS

摘要

Disclosed herein are implantable fistula treatment devices and related methods. In some embodiments, a distal anchor for an implantable fistula treatment device may comprise a suture and a plurality of foldable members including at least a distal-most foldable member and a proximal-most foldable member. The distal-most foldable member may comprise a suture attachment structure. The distal-most foldable member may comprise a distal first average dimension substantially parallel to the longitudinal axis of the suture, a distal second average dimension orthogonal to the distal first average dimension, and a distal third average dimension orthogonal to th distal first and second average dimensions. The distal first average dimension may be no greater than 30% of the greater of the distal second and third average dimensions. The proximal-most foldable member may be configured to couple to a surface of a body lumen a a distal opening of a fistula.