Intervertebral fusion device with bone graft lumbar
Inventors
Assignees
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Publication Number
US-12622790-B2
Publication Date
2026-05-12
Expiration Date
Abstract
Described herein are intervertebral fusion devices and their methods of use. Also described herein are interbody device systems and the methods of using the same.
Core Innovation
The disclosure describes lumbar intervertebral fusion and interbody implant systems that use minimally invasive or percutaneous access to treat a target disc space. An inflatable balloon is inserted into the intervertebral space and expanded to apply pressure against anatomy, including restoring foraminal height and clearing or breaking through annulus material to create access to the disc space. The disclosure further describes restoring disc height and creating lordosis as part of the balloon distraction and disc space preparation process.
After the inflatable balloon is withdrawn, an interbody implant is inserted through the access tube into the intervertebral space. The interbody implant is described as an expansile filamentous, mesh-like, or stent interbody device, including expandable scaffolds and expandable structures with tapered or pivoting geometries. The interbody implant structure is configured to increase vertebral endplate contact area to reduce subsidence and to improve bony ingrowth and fusion.
The interbody implant is filled with a load bearing filler material that comprises a plurality of particles configured to interlock to form a load bearing structure in the intervertebral space. In some embodiments, the system includes a containment device, such as a webbing, braid, weave, or sac, that may be filled with load-bearing filler materials to form an interlocking load-bearing structure. A closable or retained arrangement, including mechanisms such as a cap, crimping, twisting, adhesives, or a screwcap, is described to prevent extrusion of the filler materials.
Claims Coverage
The partial content identifies three independent claim families covering minimally invasive delivery of an interbody implant into an intervertebral space, including pressure application to the target disc space via an inflatable balloon in at least one method/system embodiment, and filling the interbody implant with a particle-based load bearing filler configured to interlock into a load bearing structure.
Balloon pressure to restore foraminal height with tube-delivered interbody implant
inserting an elongate tube proximate to the intervertebral space; inserting an inflatable balloon through the tube and into the intervertebral space; expanding the inflatable balloon to apply pressure against anatomy of a target disc space and to restore foraminal height; withdrawing the inflatable balloon from the intervertebral space; inserting the interbody implant through the tube into the intervertebral space; and filling the interbody implant with a load bearing filler material that comprises a plurality of particles configured to interlock to form a load bearing structure in the intervertebral space.
Interbody system treating back pain and nerve pain using tube-delivered balloon and interlocking particulate filler
a tube configured to be inserted into an intervertebral space of the patient; a balloon configured to be inserted through the tube, wherein the balloon can be used to apply pressure against anatomy of a target disc space; an interbody implant configured to be inserted through the tube; and a load bearing filler material configured to be inserted into the interbody implant, wherein the load bearing filler material comprises a plurality of particles configured to interlock to form a load bearing structure in the intervertebral space.
Minimally invasive deployment using expandable mesh interbody implant and particle-interlocking load-bearing filler
accessing the intervertebral space via a minimally invasive surgical access path; inserting the interbody implant into the intervertebral space along the minimally invasive surgical access path, wherein the interbody implant comprises an expandable mesh structure; and inserting a load bearing filler material into the interbody implant via the minimally invasive surgical access path, wherein the load bearing filler material comprises a plurality of particles configured to interlock to form a load bearing structure in the intervertebral space.
Across the independent claims, the central inventive theme is minimally invasive delivery of an interbody implant into an intervertebral space, including pressure application to the target disc space via an inflatable balloon in at least one method/system embodiment, and filling the interbody implant with a particle-based load bearing filler configured to interlock into a load bearing structure.
Stated Advantages
Increased vertebral endplate contact area to reduce subsidence.
Improved bony ingrowth and fusion.
Restoring foraminal height.
Restoring disc height and creating lordosis.
Documented Applications
Treating lumbar intervertebral disc space pathology via intervertebral fusion using minimally invasive/percutaneous access with an inflatable balloon and a particle-interlocking interbody implant.
Treating back pain and nerve pain of a patient using a tube-delivered balloon, an interbody implant, and an interlocking load-bearing filler.
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