US 9,808,349 B2
Expandable vertebral implant
Colm McLaughlin, Philadelphia, PA (US); Jason Gray, East Greenville, PA (US); and James Himmelberger, Souderton, PA (US)
Assigned to Globus Medical Inc, Audubon, PA (US)
Filed by Colm McLaughlin, Philadelphia, PA (US); Jason Gray, East Greenville, PA (US); and James Himmelberger, Souderton, PA (US)
Filed on Sep. 7, 2012, as Appl. No. 13/606,625.
Application 13/606,625 is a continuation of application No. 12/758,529, filed on Apr. 12, 2010, granted, now 8,282,683.
Prior Publication US 2012/0330426 A1, Dec. 27, 2012
Int. Cl. A61F 2/44 (2006.01); A61F 2/46 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/44 (2013.01) [A61F 2/4455 (2013.01); A61F 2/4611 (2013.01); A61F 2/4465 (2013.01); A61F 2002/3008 (2013.01); A61F 2002/3055 (2013.01); A61F 2002/30383 (2013.01); A61F 2002/30393 (2013.01); A61F 2002/30395 (2013.01); A61F 2002/30477 (2013.01); A61F 2002/30495 (2013.01); A61F 2002/30504 (2013.01); A61F 2002/30505 (2013.01); A61F 2002/30512 (2013.01); A61F 2002/30523 (2013.01); A61F 2002/30571 (2013.01); A61F 2002/30578 (2013.01); A61F 2002/30579 (2013.01); A61F 2002/30601 (2013.01); A61F 2002/30604 (2013.01); A61F 2002/30828 (2013.01); A61F 2002/30843 (2013.01); A61F 2002/30846 (2013.01); A61F 2002/4475 (2013.01); A61F 2002/4625 (2013.01); A61F 2002/4627 (2013.01); A61F 2002/4629 (2013.01); A61F 2310/00011 (2013.01); A61F 2310/00023 (2013.01); A61F 2310/00131 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An expandable prosthetic implant for engagement between vertebrae, comprising:
an inner member having a hollow interior portion and an external portion and including a first end portion, the inner member being centered along a first longitudinal axis, the first end portion comprising a first screw hole and a second screw hole;
a first screw configured and dimensioned to be received in the first screw hole and a second screw configured and dimensioned to be received in the second screw hole, the first and second screws capable of engaging a first vertebral body;
a first blocking member having a second longitudinal axis positioned transverse to the first longitudinal axis, the first blocking member being rotatable about the second longitudinal axis from a first position to a second position,
an outer member having a hollow interior portion configured to coaxially receive the inner member therein and including a second end portion, the second end portion comprising a third screw hole and a fourth screw hole;
a third screw configured and dimensioned to be received in the third screw hole and a fourth screw configured and dimensioned to be received in the fourth screw hole, the third and fourth screws capable of engaging a second vertebral body;
a gear member positioned coaxial to the inner member and outer member and axially fixed to the outer member, the gear member includes a helical thread along at least part of an inner wall and an array of gear teeth along a portion of an exterior wall, the gear teeth extending from a proximal end of the gear member to a distal end of the gear member; and
a locking member configured to restrict relative movement between the inner member and the outer member, wherein the locking member is configured to be received in the outer member, wherein the locking member includes an engagement member that engages the gear member to prevent rotation of the gear member, and wherein said engagement member is an upwardly protruding engagement member configured to be received in a cutout in the gear member;
wherein the inner and outer members are moveable relative to each other along the first longitudinal axis,
wherein the locking member includes a through hole for receiving a tool to move the locking member relative to the gear member in a direction parallel to the first longitudinal axis.