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Publication Number
US-11278421-B2
Publication Date
2022-03-22
Expiration Date
Abstract
In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.
Core Innovation
The invention relates to an orthopedic implant for interfacing with a bone structure, including an external frame defining an exterior surface of the implant and an internal space truss structure at least partially enclosed by the external frame. The internal space truss structure comprises two or more planar truss units having a plurality of struts joined at nodes, where at least two nodes within the internal space truss structure are connected by a strut that curves or arcs between the nodes.
At least one of the planar truss units lies in a plane that is not substantially parallel to a plane of at least one or more other planar truss units. The internal space truss structure extends into a central portion of the implant, forming a web structure with an open internal space truss that reaches through the central portion.
The implant concept includes internal truss geometries based on arrangements of planar truss units such as triangular/tetrahedral and pyramid-to-octahedron configurations. In described embodiments, the internal space truss structure includes truss units having curved or arched struts, and bone-through-growth openings via truss structures on contact faces.
Claims Coverage
The provided independent claims comprise an implant claim and a method claim. Across these independent claims, the inventive features center on an external frame enclosing an internal space truss with multiple planar truss units arranged in non-substantially-parallel planes, curved or arced struts connecting nodes, and extension of the internal space truss into a central portion of the implant; the method claim further covers accessing a space proximate human bone tissue and inserting the implant.
External frame enclosing an internal space truss structure
An implant comprising an external frame defining an exterior surface of the implant, and an internal space truss structure at least partially enclosed by the external frame.
Multiple planar truss units arranged in non-substantially-parallel planes
The internal space truss structure comprises two or more planar truss units comprising a plurality of struts joined at nodes, wherein at least one of the two or more planar truss units lies in a plane that is not substantially parallel to a plane of at least one or more of the other two or more planar truss units.
Curved or arced strut connecting nodes within the internal space truss
At least two nodes within the internal space truss structure are connected by a strut that curves or arcs between the at least two nodes.
Internal space truss extending into a central portion of the implant
At least a portion of the internal space truss structure extends into a central portion of the implant.
Accessing a space proximate human bone tissue and inserting the implant
A method comprising accessing a space proximate a bone structure comprising human bone tissue; and inserting an implant into the space, wherein the implant comprises an external frame and an internal space truss structure with the planar truss, curved or arced strut, and central-portion extension features.
The independent claim coverage focuses on a framed implant architecture with an enclosed internal space truss made from multiple planar truss units in non-substantially-parallel planes, curved or arced struts connecting nodes, and truss portions extending into a central portion of the implant. The independent method claim covers inserting such an implant into a space proximate human bone tissue.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Spine fusion implant, including intervertebral space as a use context for insertion.
Corpectomy device.
Hip replacement.
Knee replacement.
Long bone reconstruction scaffold.
Cranio-maxillofacial implant.
Foot and ankle implant, including a void near an ankle or knee as a use context for insertion.
Osteotomy implant.
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