DUAL EXPANSION ANCHOR

摘要

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.

主权项

1. A bone anchor, comprising:
a bone engaging member comprising:
a first proximal bone engaging portion and a second distal bone engaging portion; andan expansion feature configured to allow radial expansion of the first bone engaging portion and the second bone engaging portion; an expander having a first proximal expansion portion and a second distal expansion portion and displaceable between a first position relative to the bone engaging member and a second position relative to the bone engaging member; a tissue capture feature; and wherein the first expansion portion of the expander is configured to expand the first bone engaging portion of the bone engaging member and the second expansion portion of the expander is configured to expand the second bone engaging portion of the bone engaging member when the expander is in the second position.