Patent attributes
Apparatus includes a tube and an implant moveable at least in part through a lumen of the tube. The implant includes a longitudinal member and a locking mechanism coupled to the longitudinal member. The locking mechanism has (i) an unlocked state in which the locking mechanism is configured to facilitate adjustment of tension of the longitudinal member, and (ii) a locked state in which the locking mechanism is configured to restrict adjustment of the tension of the longitudinal member. A tool maintains the locking mechanism in the unlocked state via contact of the tool with the locking mechanism in the heart, and moves the locking mechanism into the locked state. The locking mechanism is disposed distally to the distal end of the tube while the longitudinal member is disposed entirely within the tube. Other applications are also described.