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US 2020/0046515 A1Published application
Expandable scaffolding with a rigid, central beam
AssigneeIntegrity Implants Inc.
InventorsJohn To, John J. Flynn, Paul J. Birkmeyer
Life of this patent
Estimating the term…
Abstract
An intervertebral scaffolding system is provided having a rigid central beam and a laterovertically-expanding frame operable for a reversible collapse from an expanded state into a collapsed state.
Claims20
An intervertebral scaffolding system for use in a subject, comprising;
- a central beam having a proximal portion and a distal portion, wherein the central beam is sized to have a transverse cross-section having a maximum dimension ranging from 5 mm to 15 mm for placing the central beam into an intervertebral space through an annular opening having a maximum lateral dimension ranging from 5 mm to 15 mm;
- and,
- an expanding frame having a collapsed state and an expanded state, the frame configured for operably contacting the central beam to create an intervertebral scaffolding system in vivo, the frame having
- a proximal end and a distal end;
- and,
- a lumen formed by the expanding frame, the lumen of the frame configured for slidably engaging with the central beam in vivo following placement of the central beam in the intervertebral space through the annular opening, the slidably engaging including translating the central beam into the frame from the proximal end of the frame toward the distal end of the frame in vivo.
3 more elements
An intervertebral scaffolding system, comprising:
- a plurality of beams that define an expandable frame comprising a collapsed state and an expanded state, the plurality of beams configured at least substantially parallel in the collapsed state and define a proximal-distal axis, and a plurality of connector elements that operably connect the plurality of beams and maintain a high structural stiffness and strength in the direction perpendicular to the proximal-distal axis so that a transverse cross section perpendicular to the proximal-distal axis maintains shape during and after insertion of the frame into the intervertebral disc space,
- a lumen surrounded by the plurality of beams;
- a central beam configured for translatably inserting into the lumen to expand the expandable frame.
Dependencies are inferred from the claim text.