An apparatus for affixing a first tissue to a second tissue and methods of manufacturing and using the same. The apparatus comprises an elongated needle； a handle disposed at a proximal end of the elongated needle； a superelastic anchor disposed within the elongated needle, the anchor comprises: at least one normally-expanded elongated hook that is biased to a contracted state to fit within the elongated needle； a securing element； and an advancement mechanism triggerable by the handle and being configured to: eject the anchor out of a distal end of said elongated needle to allow the elongated hook to extend distally outward from the longitudinal axis of the elongated needle, into or beyond a tissue, and following the ejection of the anchor, eject the securing element from the apparatus to prevent movement of the anchor in at least one direction.
