A dual expansion anchor configured for use in anchoring an implanting portion to an anchor point. A dual expansion anchor can be of particular use in anchoring soft tissue to a bone. A dual expansion anchor can have an expander and an anchor body. The expander can be sized and shaped so that it causes radial expansion of a first end and a second end of the anchor body when the expander is moved to a deployment or expansion position within the anchor body. The anchor body can include features to positively retain the position of the expander when the anchor body is deployed.
