| 主权项 |
1. An intramedullary nail comprising:
a rod having a longitudinal axis, the rod comprising a proximal portion and a distal portion; and at least one elongate keel disposed longitudinally on an outer surface of the rod and radially extending outward relative to the longitudinal axis of the rod, wherein the intramedullary nail is configured to expand axially and radially, the axial expansion being independent from the radial expansion, wherein the at least one elongate keel is not elastically deformable, and wherein the axial expansion of the intramedullary nail is a non-magnetic mechanical expansion. |
