Programmable implant
Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.
1. An implant for interfacing with a bone structure, comprising:
a web structure comprising a plurality of struts joined at nodes, wherein the web structure is configured to interface with human bone tissue, and wherein the web structure comprises a space truss comprising two or more planar truss units;
wherein a density of the web structure is predetermined such that when the web structure is in contact with the bone at least a portion of the struts create a microstrain in adhered osteoblasts, bone matrix, or lamellar tissue; and
wherein one or more of the planar truss units are coupled to one another such that one or more planar truss units lie in a plane that is not substantially parallel to a plane of a planar truss unit that shares at least one strut with the one or more planar truss units.
2. The implant of claim 1 , wherein the density of the web structure is predetermined so that the struts, under load, create a microstrain, in adhered osteoblasts, wherein the microstrain is within a range that stimulates an osteogenetic response.
3. The implant of claim 1 , wherein the density of the web structure is predetermined so that at least a portion of the struts create a microstrain in the adhered osteoblasts of between about 1με and about 5000με.
4. The implant of claim 1 , wherein the density of the web structure is predetermined so that at least a portion of the struts create a microstrain in the adhered osteoblasts of between about 500 με and about 2000 με.
5. The implant of claim 1 , wherein the density of the web structure is predetermined so that at least a portion of the struts create a microstrain in the adhered osteoblasts of between about 1000 με and about 1500 με.
6. The implant of claim 1 , wherein the density of the web structure is predetermined so that at least a portion of the struts create a change in length of the adhered osteoblasts of between about 0.05% and about 0.2%.
7. The implant of claim 1 , wherein the density of the web structure is predetermined so that at least a portion of the struts create a change in length of the adhered osteoblasts of between about 0.1% and about 0.15%.
8. The implant of claim 1 , wherein one or more of the planar truss units comprise one or more planar triangular truss units having three substantially straight struts and three nodes in a triangular configuration.
9. A method of repairing a bone structure, comprising:
obtaining an implant, the implant comprising:
a web structure comprising a plurality of struts joined at nodes, wherein the web structure is configured to interface with human bone tissue, and wherein the web structure comprises a space truss comprising two or more planar truss units;
wherein a density of the web structure is predetermined such that when the web structure is in contact with the bone at least a portion of the struts create a microstrain in adhered osteoblasts; and
wherein one or more of the planar truss units are coupled to one another such that one or more planar truss units lie in a plane that is not substantially parallel to a plane of a planar truss unit that shares at least one strut with the one or more planar truss units;
coupling the implant to the bone structure.
10. The method of claim 9 , wherein the density of the web structure of the struts is predetermined so that at least a portion of the struts create a microstrain in the adhered osteoblasts of between about 1 με and about 5000 με.
11. The method of claim 9 , wherein the density of the web structure of the struts is predetermined so that at least a portion of the struts create a microstrain in the adhered osteoblasts of between about 500 με and about 2000 με.
12. The method of claim 9 , wherein the density of the web structure of the struts is predetermined so that at least a portion of the struts create a microstrain in the adhered osteoblasts of between about 1000 με and about 1500 με.
13. The method of claim 9 , wherein the density of the web structure of the struts is predetermined so that at least a portion of the struts create a change in length of the adhered osteoblasts of between about 0.05% and about 0.2%.
14. The method of claim 9 , wherein the density of the web structure of the struts is predetermined so that at least a portion of the struts create a change in length of the adhered osteoblasts of between about 0.1% and about 0.15%.
15. The method of claim 9 , wherein one or more of the planar truss units comprise one or more planar triangular truss units having three substantially straight struts and three nodes in a triangular configuration.