OFF-CENTER TISSUE ANCHORS WITH TENSION MEMBERS

摘要

A tissue anchor (290, 420, 450, 470, 490) is provided including an anchor shaft (122); a tissue-coupling element (128), which (a) extends from a distal end (130) of the anchor shaft (122), (b) comprises a wire (150), and (c) is shaped as an open shape (291) when the tissue anchor (290, 420, 450, 470, 490) is unconstrained by a deployment tool (30); and a flexible elongate tension member (202), which (a) extends from a distal site (380) on the open shape (291), the distal site (380) located within 7 mm of a distal end (294) of the open shape (291), and (b) includes a proximal portion (208), which has a longitudinal segment (209) that runs alongside at least a portion (210) of the anchor shaft (122) when the tissue anchor (290, 420, 450, 470, 490) is unconstrained by the deployment tool (30). The tissue anchor (290, 420, 450, 470, 490) is configured to allow relative axial motion between the at least a portion (210) of the anchor shaft (122) and the longitudinal segment (209) of the proximal portion (208) of the flexible elongate tension member (202) when the tissue anchor (290, 420, 450, 470, 490) is unconstrained by the deployment tool (30).