The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 16, 2018

Filed:

Feb. 12, 2016
Applicant:

Nextstep Arthropedix, Llc, Akron, OH (US);

Inventors:

Cowan H. Moore, Uniontown, OH (US);

Randall R. Theken, Barberton, OH (US);

Christopher Lee Fries, Fresno, CA (US);

Eric Montgomery Lucas, Stow, OH (US);

Richard Barros, Cuyahoga Falls, OH (US);

Assignee:

Nextstep Arthropedix, LLC, Akron, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/32 (2006.01); A61F 2/36 (2006.01);
U.S. Cl.
CPC ...
A61F 2/3609 (2013.01); A61F 2/36 (2013.01); A61F 2250/006 (2013.01);
Abstract

In embodiments of the invention, an implant that anchors into bone may have a bone-facing region that comprises a plurality of interconnected struts. The interconnected struts may define local features such as engagement ridges, fins, crests, a macroscopic surface-interrupting feature, a divertor structure, and sawteeth in any combination. Such features may help resist translation or rotation of the implant, and may be conducive to bone ingrowth. Parameters such as local empty volume fraction and local average strut length can be varied, even within the features, by the design of the network of struts. Struts may be tapered. Cantilever struts may also be provided, which may point in a desired direction. The pattern of struts may be specified to the level of dimensions and location of individual struts. The implant may be manufactured by additive manufacturing methods. The mesh of struts may be generated by an algorithm using Voronoi tessellation.


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