Patent ID: 8771272

Claim:
A nail-fastener apparatus for implantation into the medullary canal ( 26 ) surrounded by the cortex ( 28 ) of a bone ( 24 ) including a near cortex hole ( 40 ), comprising: an intramedullary nail ( 20 ) extending between a top end ( 30 ) and a bottom end ( 32 ) and defining a bore ( 34 ) for insertion into the medullary canal ( 26 ), a threaded fastener ( 22 ) including a head ( 44 ) and an end ( 46 ) with a threaded portion ( 50 ) extending along a fastener axis (A) therebetween for threadedly engaging said bore ( 34 ) of said intramedullary nail ( 20 ), said threaded fastener ( 22 ) including a compression portion ( 48 ) presenting a compression portion diameter (D CP ) and extending along said fastener axis (A) between said threaded portion ( 50 ) and said head ( 44 ) for extending through the near cortex hole ( 40 ) of the bone ( 24 ), a compression transmission device ( 54 ) extending longitudinally along said fastener axis (A) from a device top end ( 60 ) to a device bottom end ( 62 ), said compression transmission device ( 54 ) having an exterior ( 56 ) and an interior ( 58 ) defining an interior space, said interior ( 58 ) extending continuously from said device top end ( 60 ) to said device bottom end ( 62 ) and continuously around said fastener axis (A) and said compression portion ( 48 ) of said threaded fastener ( 22 ), said compression transmission device ( 54 ) being disposed between said head ( 44 ) of said threaded fastener ( 22 ) and said intramedullary nail ( 20 ), and said interior space being greater than said compression portion diameter (D CP ) of said fastener ( 22 ) for providing space at least partially about said threaded fastener ( 22 ) for allowing said fastener axis (A) to be variously disposed relative to said interior space.