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US 9,782,270 B2Granted
Spinal implant system and method
AssigneeWarsaw Orthopedic, Inc.
InventorJeffrey Wickham
Life of this patent
Estimating the term…
Abstract
A spinal implant comprises a first vertebral engaging surface and a second vertebral engaging surface. A wall extends between the surfaces. The wall includes an inner bone growth resistant layer and an outer layer. Systems and methods of use are disclosed.
Claims20
A spinal implant comprising:
- a first vertebral engaging surface;
- a second vertebral engaging surface;
- and
- a wall extending between the surfaces, the wall including opposite inner and outer surfaces, the inner surface defining a cavity that extends through the first and second vertebral engaging surfaces, the wall comprising a stratum having a core layer disposed centrally relative to the inner and outer surfaces, an inner layer that encloses the core layer and an outer layer disposed about the inner layer, the inner layer forming a seal between the outer layer and the core layer to prevent bony ingrowth into the core layer.
1 more element
A spinal implant comprising:
- a first vertebral engaging surface;
- a second vertebral engaging surface;
- and
- a wall extending between the surfaces, the wall including opposite inner and outer surfaces, the inner surface defining a cavity that extends through the first and second vertebral engaging surfaces, the wall including a stratum comprising a core disposed centrally relative to the inner and outer surfaces, an inner layer that surrounds the core on all sides of the core and an outer layer disposed about the inner layer, the inner layer forming a seal between the outer layer and the core to prevent bony ingrowth into the core.
1 more element
A spinal implant comprising:
- a titanium body including a first vertebral engaging surface and a second vertebral engaging surface, the surfaces each including a plurality of tissue penetrating members engageable with a vertebral endplate;
- and
- a wall extending between the surfaces and including opposite inner and outer surfaces, the inner surface defining a cavity that extends through the first and second vertebral engaging surfaces, the wall including an outer lattice, an inner core and a solid layer disposed between the outer lattice and the inner core, the inner core being disposed centrally relative to the inner and outer surfaces, the solid layer enclosing the inner core such that the solid layer forms a seal between the outer lattice and the inner core to prevent bony ingrowth into the inner core, the wall including a threaded bore that extends through the inner and outer surfaces and is in communication with the cavity.
Dependencies are inferred from the claim text.