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US 12,766,007 B2Granted
Expandable fusion implant and related methods
AssigneeGlobus Medical, Inc.
InventorChristopher Stein
Life of this patent
Estimating the term…
Abstract
An expandable spinal fusion implant including first and second endplates coupled to an expansion member that sits within a housing. The expansion member is translated by a drive mechanism, whereby translation of the expansion member by the drive mechanism in a distal and proximal directions causes the distance between the endplates to increase and decrease, respectively.
Claims6
An expandable implant comprising:
- a housing;
- a first endplate located above the housing and configured to contact a superior vertebral body;
- a second endplate located below the housing and configured to contact an inferior vertebral body;
- an expansion mechanism positioned within the housing comprising two wedge portions and an endplate safety retainer configured to prohibit removal of the endplates once assembled, wherein each of the two wedge portions comprises a superior ramp configured to mate with a ramped portion of the first endplate by an undercut or dovetail connection and an inferior ramp configured to mate with a ramped portion of the second endplate by an undercut or dovetail connection;
- and
- a drive mechanism,
- wherein each of the first endplate and the second endplate comprise a distal extension configured to aid in retaining the first endplate and second endplate within the housing, and the expansion mechanism is supported in the housing by two support rails.
4 more elements
Dependencies are inferred from the claim text.