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US 2018/0185165 A1Published application
Expandable interbody fusion device
AssigneeSpine Wave, Inc.
InventorsWES JOHNSON, TYLER LIPSCHULTZ, LARRY WALES, ROBERT KIEVAL
Life of this patent
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Abstract
An apparatus and method is provided for interbody fusion including distracting, in a given direction, and supporting opposing vertebral bodies. A plurality of wafers are consecutively inserted between the vertebral bodies to create a column of wafers. The column of wafers is oriented between the vertebral bodies so as to expand in the given direction as the wafers are consecutively added to the column.
Claims8
An expansion member for use in an expandable interbody fusion device for implantation into the intradiscal space between opposing vertebral bodies in a spine, comprising:
- a unitary elongate body including a leading distal end and a trailing proximal end, said body being sized and configured to move within an expandable interbody fusion device and to cause expansion of said device upon such movement, said body having a first beveled surface defining a lifting surface and a second beveled surface spaced proximally axially therefrom, said body including a locking surface and a bone filler facilitator selected from the group of facilitators consisting of tunnels, grooves and holes for receipt therein of a bone filler.
Dependencies are inferred from the claim text.