Patent ID: 9144500
Filing Date: 2015-09-29
Classification: A61F

Abstract:
1. An ankle replacement device comprising: (I) a first bone-engaging component operatively adapted to engage with a first bone, and comprising (1) a first base member comprising (a) a lower surface, said lower surface having an lower surface profile comprising (i) a lower surface portion surrounded by a lower surface periphery, and (ii) a lower surface depression surrounded by said lower surface portion, said lower surface depression having a dome-shaped configuration with a depression depth, d (II) a second bone-engaging component operatively adapted to engage with a second bone, and comprising an upper surface, said upper surface having an upper surface profile comprising (i) an upper surface portion surrounded by an outer periphery, and (ii) an upper surface structure surrounded by said outer periphery, said upper surface structure having a dome-shaped configuration with a structure height, h said first bone-engaging component being engagable with said second bone-engaging component so that (i) at least a portion of said upper surface structure is positionable within said lower surface depression, and (ii) when said portion of said upper surface structure is positioned within said lower surface depression, said upper surface portion is movable relative to said lower surface portion; wherein said upper surface structure comprises (1) at least two grooves separated from one another and extending in a front to rear direction along said upper surface, (2) a centrally-located track portion between said at least two grooves, and (3) outer track portions on opposite outer portions of said upper surface; and said lower surface depression of said first base member comprises (1) at least two rails separated from one another and extending in said front to rear direction along said lower surface depression so as to engagable with said at least two grooves, (2) a centrally-located depression portion between at least two rails so as to contact/engage with said centrally-located track portion, and (3) outer depression portions on opposite outer portions of said lower surface depression, and wherein said at least one base member bracket side wall comprises a single base member bracket side wall and further comprises a bone-connecting hole extending through said single base member bracket side wall.