ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,158, issued on March 25, was assigned to Mobarn Medical LLC.
"Interbody fusion cages" was invented by Curt Freudenberger (Huntsville, Ala.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An implant for interbody fusion of vertebrae comprising a unibody cage structure having an enveloping cage volume and a minimized material volume. The cage structure comprises a first and a second generally planar ring member, each ring member formed from an opposing pair of lengthwise joists and an opposing pair of cross joists, the joists together forming a large opening through the ring member. The ring members are fixedly sandwiched on a plurality of support mem...