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US 10,456,262 B2Granted
Patient-specific implant flanges with bone side porous ridges
AssigneeHowmedica Osteonics Corp.
InventorAmit Mistry
Life of this patent
Estimating the term…
Abstract
An implant includes a base, a flange, and ridge. The flange extends from the base. The ridge extends from the flange. A hole extends through the flange and the ridge. A system with the implant includes a fastener extending through the ridge of the implant. The implant is placed into bone by securing a base of the implant to a main complementary contact surface of bone and by securing a ridge extending outwardly from a flange of the implant to a secondary complementary contact surface of bone spaced from the main complementary contact surface.
Claims18
An implant comprising:
- a base defining a dome and a circumferential rim;
- an elongated flange extending outwardly from the base, at least a first portion of the flange defining a plane and having opposing flat surfaces;
- and
- a ridge extending from the first portion of the flange in a direction transverse to the plane and including opposing concave and convex surfaces, wherein a hole extends through the flange and the ridge and is configured for receipt of a portion of a fastener having a head and a shank, wherein the convex surface of the ridge is a bone-contacting surface, and wherein the concave surface of the ridge is configured for receipt of the head of the fastener.
1 more element
An implant comprising:
- an acetabular cup shell including opposing convex and concave base surfaces, the convex base surface being configured for placement against bone and the concave base surface defining a bearing surface;
- an elongated flange extending outwardly from a circumferential rim of the acetabular cup shell and having opposing flat surfaces;
- and
- a ridge monolithic with the flange extending from one of the flat surfaces of the flange, wherein any one or any combination of the quantity, location, and shape of the flange is based on patient-specific information, wherein the ridge includes a convex ridge surface configured for placement against bone, wherein at least one hole extends through the flange and the ridge and is dimensioned to receive a portion of a corresponding fastener having a head and a shank, wherein a concave surface of the ridge is configured for receipt of the head of the fastener, and wherein at least a portion of the acetabular cup shell, a portion of the flange, and a portion of the ridge are porous.
1 more element
Dependencies are inferred from the claim text.