Anchor magazine

Apparatus comprising:

• a tissue anchor;
• and
• an anchor-storage device, comprising:
• a housing, shaped to define a channel having an anchor-storage zone and a proximal opening, the anchor stored in the anchor-storage zone, and
• a retaining member that:
• has a retaining state in which the retaining member is configured to retain the tissue anchor in the anchor-storage zone, and
• is transitionable away from the retaining state in response to a proximally-directed force applied to the tissue anchor:
• to allow the tissue anchor to leave the anchor-storage zone in response to the proximally-directed force, and
• such that the detent moves proximally into the cavity, thereby inhibiting subsequent returning of the retaining member into the housing.

A system, comprising:

• a tissue anchor;
• and
• an anchor-handling device:
• comprising a housing, shaped to define a channel having an anchor-storage zone and a proximal opening, the anchor stored in the anchor-storage zone, and
• comprising a retaining member that:
• engages the housing in a manner that retains the tissue anchor within the anchor-storage zone, and
• responsively to a proximally-directed force being applied to the tissue anchor, deforms and moves proximally with the tissue anchor to allow the anchor to move out of the anchor-storage zone toward the proximal opening.