Implant with multi-layer bone interfacing lattice
AssigneeInstitute for Musculoskeletal Science and Education, Ltd.
InventorsRami Hamzey, Robert Morris, William Duffield, Mathew Gordon, Edward J. McShane, III, Joseph M. Nyahay
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Abstract
An implant includes a body including a substrate and a bone interfacing lattice disposed on the substrate. The bone interfacing lattice includes at least two layers of elongate curved structural members. In addition, the at least two layers of elongate curved structural members include a first layer adjacent the substrate and a second layer adjacent the first layer. Also, the first layer has a first deformability and the second layer has a second deformability, wherein the second deformability is greater than the first deformability.
Claims12
An implant, comprising:
- a body including a substrate and a bone interfacing lattice disposed on the substrate;
- wherein the bone interfacing lattice includes at least two layers of elongate curved structural members;
- wherein the at least two layers of elongate curved structural members include a first layer adjacent the substrate and configured to receive bone ingrowth and a second layer adjacent the first layer and configured to receive bone ingrowth;
- wherein the first layer has a first deformability and the second layer has a second deformability;
- wherein the second deformability is greater than the first deformability such that the second layer has a compressibility that renders it configured to conform to irregularities in a recess within a bone;
- and
- wherein an interface between the first layer and the second layer is a transition region having a thickness within which the elongate curved structural members of the first layer are intertwined with the elongate curved structural members of the second layer;
- and
- wherein the first deformability is a plastic deformability and the second deformability is a plastic deformability.
An implant, comprising:
- a body including a substrate and a bone interfacing lattice disposed on the substrate;
- wherein the bone interfacing lattice includes at least two layers of elongate curved structural members;
- wherein the at least two layers of elongate curved structural members includes a first layer adjacent the substrate and configured to receive bone ingrowth and a second layer adjacent the first layer and configured to receive bone ingrowth;
- wherein the elongate curved structural members of the first layer have a first gauge and the elongate curved structural members of the second layer have a second gauge;
- wherein the second gauge is less than the first gauge such that the second layer has a compressibility that renders it configured to conform to irregularities in a recess within a bone;
- and
- wherein an interface between the first layer and the second layer is a transition region having a thickness within which the elongate curved structural members of the first layer are intertwined with the elongate curved structural members of the second layer;
- and
- wherein the first deformability is a plastic deformability and the second deformability is a plastic deformability.
Dependencies are inferred from the claim text.