US 12,414,863 B2
Expandable interbody implant and corresponding surgical tool
Stanley Kyle Hayes, Mission Viejo, CA (US); Robert M. Loke, Memphis, TN (US); Charlie J. Barfield, East Hernando, MS (US); and Dimitri K. Protopsaltis, Memphis, TN (US)
Assigned to WARSAW ORTHOPEDIC, INC., Warsaw, IN (US)
Filed by Warsaw Orthopedic, Inc., Warsaw, IN (US)
Filed on May 4, 2022, as Appl. No. 17/736,523.
Application 17/736,523 is a continuation in part of application No. 17/665,449, filed on Feb. 4, 2022.
Application 17/736,523 is a continuation in part of application No. 17/515,709, filed on Nov. 1, 2021, granted, now 12,295,865.
Application 17/736,523 is a continuation in part of application No. 17/356,950, filed on Jun. 24, 2021, granted, now 11,612,499.
Prior Publication US 2022/0409398 A1, Dec. 29, 2022
Int. Cl. A61F 2/44 (2006.01); A61F 2/46 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/4611 (2013.01) [A61F 2/442 (2013.01); A61F 2/447 (2013.01); A61F 2002/30405 (2013.01); A61F 2002/30433 (2013.01); A61F 2002/30556 (2013.01); A61F 2002/30579 (2013.01); A61F 2002/4627 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An expandable implant movable between a contracted position and an expanded position, comprising:
an expandable body extending from a proximal end to a distal end in a proximal-to-distal direction and extending from a first lateral side to a second lateral side in a widthwise direction, the expandable body being defined by a superior endplate and an inferior endplate that are hingedly connected;
the superior endplate comprising a first core having a screw slot and a distal engagement surface;
the inferior endplate comprising a second core having a proximal engagement surface; and
a locking screw extending in a longitudinal direction from a proximal end to a distal end, being extendable through the first core and the second core, and being movable between a locked position and an unlocked position,
wherein, in the locked position, the locking screw urges the distal engagement surface of the first core against the proximal engagement surface of the second core,
wherein the proximal end of the locking screw is defined by an exposed aperture having an internal threaded surface, and
wherein the locking screw comprises a proximal portion and a distal portion that are configured to separate along a recessed fracture surface, and, when separated, the recessed fracture surface is recessed relative to a sidewall of the distal portion and the fracture surface is recessed relative to a proximal most edge of the distal portion.