US 11,849,984 B2
Bone fusion system
Frank D. Vrionis, Tampa, FL (US); Kamran Aghayev, Tampa, FL (US); Sabrina A. Gonzalez Blohm, Tampa, FL (US); and James J. Doulgeris, Oldsmar, FL (US)
Assigned to H. Lee Moffitt Cancer Center and Research Institute, Inc., Tampa, FL (US); and University of South Florida, Tampa, FL (US)
Filed by H. Lee Moffitt Cancer Center and Research Institute, Inc., Tampa, FL (US); and University of South Florida, Tampa, FL (US)
Filed on Jun. 18, 2020, as Appl. No. 16/905,525.
Application 16/905,525 is a continuation of application No. 15/970,204, filed on May 3, 2018, granted, now 10,687,876.
Application 15/970,204 is a continuation of application No. 15/718,786, filed on Sep. 28, 2017, granted, now 10,792,083.
Application 15/718,786 is a continuation of application No. 14/347,442, granted, now 9,820,788, issued on Nov. 21, 2017, previously published as PCT/US2012/058968, filed on Oct. 5, 2012.
Claims priority of provisional application 61/543,482, filed on Oct. 5, 2011.
Prior Publication US 2020/0315679 A1, Oct. 8, 2020
Int. Cl. A61B 17/70 (2006.01); A61F 2/44 (2006.01); A61F 2/30 (2006.01); A61B 17/86 (2006.01); A61F 2/28 (2006.01)
CPC A61B 17/861 (2013.01) [A61B 17/70 (2013.01); A61B 17/863 (2013.01); A61B 17/8635 (2013.01); A61B 17/8665 (2013.01); A61B 17/8685 (2013.01); A61F 2/447 (2013.01); A61F 2/4455 (2013.01); A61B 17/8625 (2013.01); A61F 2002/2835 (2013.01); A61F 2002/3055 (2013.01); A61F 2002/30153 (2013.01); A61F 2002/30261 (2013.01); A61F 2002/30354 (2013.01); A61F 2002/30405 (2013.01); A61F 2002/30471 (2013.01); A61F 2002/30479 (2013.01); A61F 2002/30492 (2013.01); A61F 2002/30505 (2013.01); A61F 2002/30556 (2013.01); A61F 2002/30565 (2013.01); A61F 2002/30579 (2013.01); A61F 2002/30593 (2013.01); A61F 2002/30772 (2013.01); A61F 2002/30904 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An intervertebral cage, comprising:
two longitudinal bar pairs, each pair comprising an upper bar and a lower bar, wherein the longitudinal bar pairs are spaced from each other on opposite sides of a midline vertical plane of the cage;
a spacer moveable in a direction along the midline vertical plane into a space between the longitudinal bar pairs to direct movement of at least a portion of the longitudinal bar pairs away from each other in a horizontal direction substantially perpendicular to the midline vertical plane of the cage; and
a separator movable between the upper and lower bars of a longitudinal bar pair in a direction between at least a portion of the upper and lower bars of that longitudinal bar pair in a direction substantially parallel to the midline vertical plane of the cage, such that contact between a sloped front surface of the separator and at least one of the upper bar or lower bar of that longitudinal bar pair drives vertical movement between the upper and lower bar.