Systems and methods for inserting an expandable intervertebral device
AssigneePioneer Surgical Technology, Inc.
InventorScott J. Perrow
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Abstract
An expandable interbody device for implantation within an intervertebral space is provided, together with methods and tools for use therewith. The interbody devices of the present invention include upper and lower bearing members configured to expand via an expansion mechanism configured to allow the insertion of osteoconductive materials and other structures into the interior of the interbody device before and after implantation, and before and after expansion of the interbody device. The insertion tool is configured expand the interbody device and to allow insertion of materials into the interbody device through a protected pathway.
Claims23
An expandable intervertebral device for implantation within an intervertebral space between adjacent vertebrae, the expandable intervertebral device comprising:
- upper and lower bearing members each having a bone-engaging outer surface;
- an expansion mechanism operably connected to the upper and lower bearing members for allowing the bearing members to shift between a compact configuration and an expanded configuration;
- wherein the expansion mechanism comprises at least one rotatable slide member having arcuate surfaces in operable engagement with the upper and lower bearing members, the at least one slide member configured to rotate when the bearing members are shifted between the compact and expanded configurations.
A method of inserting an expandable interbody device in an intervertebral space, comprising:
- preparing an intervertebral disc for implantation of the interbody device;
- inserting the interbody device into the intervertebral space with an insertion tool;
- expanding the interbody device into an expanded configuration with the insertion tool;
- inserting osteoconductive material through a hollow shaft of the insertion tool into the interbody device while the insertion tool is engaged with the interbody device.
A system for implanting an expandable interbody device between adjacent upper and lower vertebrae with an insertion tool, the system comprising:
- the expandable interbody device having upper and lower bearing members and an expansion mechanism comprising at least one slide member having arcuate surfaces operable to engage the upper and lower bearing members, the at least one slide member configured to rotate when the bearing members are shifted between compact and expanded configurations;
- an opening at a proximal end of the upper and lower bearing members for receiving osteoconductive material or additional components into an interior of the expandable interbody device;
- and
- the insertion tool being configured to hold, insert, and expand the expandable interbody device and having a hollow shaft for allowing insertion of osteoconductive material or additional components into the interior of the expandable interbody device while the insertion tool is engaged with the interbody device.
Dependencies are inferred from the claim text.