Adjustable annuloplasty device with alternating peaks and troughs

A method, comprising:

• advancing, to a valve of a heart of a subject, an implant that includes:
• a ring, including (i) a plurality of struts arranged in a pattern of alternating peaks and troughs, and (ii) a plurality of hinges, the ring circumscribing a central axis,
• at least one hinge of the plurality of hinges being disposed at each trough,
• each strut having a first end-portion and a second end-portion,
• each peak defined by convergence of a pair of adjacent first end-portions disposed at an angle with respect to each other, and
• each trough defined by convergence of a pair of adjacent second end-portions,
• a plurality of anchors, each anchor:
• having a respective longitudinal axis, and
• coupled to the ring at a respective trough via the at least one hinge, and
• a plurality of adjustment elements, each of the adjustment elements being rotatably coupled to a respective pair of adjacent first end-portions such that rotation of the adjustment element with respect to the pair changes the angle at which the adjacent first end-portions of the pair are disposed with respect to each other;
• within the heart, deflecting the respective longitudinal axis of at least one of the anchors with respect to the central axis;
• driving each of the anchors along the respective longitudinal axis with respect to the trough and into tissue of the heart;
• and
• subsequently, contracting tissue of the heart by rotating the plurality of adjustment elements.