ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,321, issued on March 18, was assigned to Globus Medical Inc. (Audubon, Pa.).
"Expandable intervertebral implant" was invented by Daniel Davenport (Collegeville, Pa.), Chad Glerum (Pennsburg, Pa.), Mark Weiman (Downingtown, Pa.), Duncan Sibson (Malvern, Pa.) and Andrew Iott (Newtown Square, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A joint spacer for therapeutically maintains separation of bones of a joint. A frame defines a longitudinal axis extending between distal and proximal ends. A carriage is slideably retained within the frame and has at least one ramped surface and a threaded portion. An actuator screw is threadably engaged with th...