Systems, devices and methods including retrievable tissue anchor

A method comprising:

• providing a delivery device including an anchor and an anchor delivery apparatus including a rod having a distal tip:
• the anchor including a body having a distal end, a proximal end and an opening extending from the proximal end to the distal end:
• wherein the distal end includes a plurality of flanges, each flange including a proximal barb and a distal barb;
• wherein the rod is inserted through the opening such that the distal barbs and proximal barbs are positioned along an outer surface of the rod in a delivery arrangement;
• positioning the distal tip of the rod at a first location at tissue within a human body;
• distally advancing the anchor off of the rod and at least partially into the tissue such that the anchor transitions to a natural arrangement in which the proximal barbs engage the tissue and the distal barbs converge toward a longitudinal axis of the opening;
• distally advancing the rod into the opening to force the distal barbs away from the longitudinal axis of the opening and the proximal barbs toward the longitudinal axis of the opening;
• and
• repositioning the anchor.