| abstract |
An apparatus includes a thread ( 58 ) and a tissue anchor ( 60 ) coupled to the thread. The anchor includes a proximal portion ( 60 p ), shaped to define one or more appendages ( 82 ), a distal portion ( 60 d ), and a plurality of strips ( 84 ) joining the proximal portion to the distal portion. The anchor is configured to anchor the thread at tissue ( 42 ) of a subject by virtue of the appendages expanding radially, and the strips expanding radially to form respective loops at a distal side of the tissue, upon removal of a radially-constraining force from the anchor. Other embodiments are also described. |