Surgical implant devices incorporating porous surfaces

Abstract

A surgical implant device, comprising: a body portion; and one or more surfaces comprising a plurality of protruding structures; wherein the body portion and the one or more surfaces comprising the plurality of protruding structures are integrally formed. The one or more surfaces comprising the plurality of protruding structures are formed by an additive manufacturing process. The plurality of protruding structures comprise a plurality of needles. Optionally, the surgical implant device comprises one of an anterior lumbar interbody fusion cage, a posterior lumbar interbody fusion cage, a transforaminal lumbar interbody fusion cage, an oblique lumbar interbody fusion cage, a cervical cage, and a bone screw.

Description

[0001] Cross References to Related Applications [0002] This patent application / patent claims the benefit of priority to the following co-pending applications: (1) U.S. Provisional Patent Application No. 61 / filed on July 24, 2013 and entitled "Porous Anterior Lumbar Intervertebral Fusion Cage" 857,824, (2) U.S. Provisional Patent Application No. 61,885,778, filed October 2, 2013, and entitled "Porous Anterior Lumbar Interbody Fusion Cage Including Locking Cover Plate," and (3) December 16, 2013 Submitted and titled "Implantable medical devices comprising porous surfaces with friction-enhancing needle protrusions, lattices formed by irregular unit cells, slightly irregular lattices, all-metal intervertebral devices, with polycylindrical A cross-sectional cross-sectional fusion device of , and methods of fabricating the implantable medical device using additive manufacturing techniques and processing the implantable medical device using post-processing steps to enhance surface r...

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Problems solved by technology

Similarly, these friction coatings or bonds may delaminate and fail

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