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US 10,299,938 B1Granted
Dynamic intervertebral spacer implant
OwnerJohn R. Ehteshamiinventor
Life of this patent
Estimating the term…
Abstract
Intervertebral spacer implants with dynamic load spreading features responsive to external loads and having attachment mechanisms. The dynamic load spreading features having a native state and a loaded state, which complements vertebral end plate geometry and disperses load to the epiphyseal rim.
Claims20
An intervertebral spacer implant comprising:
- a body having a generally central axis and a centralized aperture extending through the body near the centralized axis;
- the body further comprising:
- a first side having a first side perimeter and defining a first plane, an opposed second side having a second side perimeter and defining a second plane;
- the first side perimeter connected at a first edge with a perimeter wall;
- the second side perimeter connected at a second edge with the perimeter wall, wherein the perimeter wall separates the first side and second side;
- wherein the first side further comprises at least one lobe, the at least one lobe further comprising a base extending from the first perimeter and an end region toward the generally central axis;
- and
- wherein the end region is adapted to flex toward the first plane when the spacer is implanted between first and second vertebral bodies, and the end region is adapted to engage with the first vertebral surface.
5 more elements
An intervertebral spacer implant comprising:
- a body comprising a generally central axis, a centralized aperture extending through the body along the generally central axis, and a central plane;
- the body further comprising:
- a first side having a first side perimeter and defining a first plane, an opposed second side having a second side perimeter and defining a second plane;
- the first side perimeter connected at a first edge with a perimeter wall;
- the second side perimeter connected at a second edge with the perimeter wall, wherein the perimeter wall separates the first side and second side;
- wherein the first side further comprises at least one lobe extending from the first perimeter into the centralized aperture, toward the generally central axis, wherein the at least one lobe extending from the first perimeter is adapted to flex toward the first plane and the central plane;
- and
- wherein the second side further comprises at least one lobe extending from the second perimeter into the centralized aperture, toward the generally central axis, and wherein the at least one lobe extending from the second perimeter is adapted to flex toward the second plane and the central plane.
5 more elements
An intervertebral spacer implant comprising:
- a first surface and a second surface connected and separated by a perimeter wall;
- the first surface comprising at least one extension, the at least one extension having a first region and a second region, the first region adjacent to the perimeter wall and the second region extending away from the perimeter wall;
- wherein the implant is configured to be implanted adjacent to a vertebral body;
- wherein the at least one extension is adapted to transition toward the second surface when the implant is between first and second vertebral bodies, and the extension is adapted to engage with the first vertebral surface;
- and
- wherein the first region requires more force than the second region to transition toward the second surface.
3 more elements
Dependencies are inferred from the claim text.