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US 11,992,420 B2Granted
Spinal implant system
AssigneeWarsaw Orthopedic, Inc.
InventorsThomas J. Stinchfield, Julien J. Prevost, Robert M. Loke
Life of this patent
Estimating the term…
Abstract
A spinal implant system is provided for bridging an intervertebral space between vertebral bodies bordering the intervertebral space. The spinal implant system includes at least one adjustable end cap and a spinal implant. The end cap can be used with additional end caps and/or the spinal implant. Multiple end caps can be stacked on top of one another, and one end cap can be attached to a first end of the spinal implant, and another end cap can be attached to a second end of the spinal implant. Thus, one or more of the end caps can be attached to either end of the spinal implant.
Claims20
An end cap comprising:
- a base portion including a lower portion and an upper portion,
- the lower portion including a first end, an opposite second end, a perimeter, an axis extending through the first end and the second end of the lower portion, a lower surface, and a plurality of sidewall portions, the plurality of sidewall portions of the lower portion being positioned around portions of the perimeter of the lower portion, the plurality of sidewall portions of the lower portion including inner surfaces, the lower surface and the inner surfaces of the plurality of sidewall portions of the lower portion defining a cavity, the inner surfaces of at least two of the plurality of sidewall portions of the lower portion each including a tab extending into the cavity, and the lower portion having a maximum dimension perpendicular to the axis of the lower portion, and
- the upper portion including a first end, an opposite second end, an axis extending through the first end and the second end of the upper portion, and an exterior surface extending between the first end and the second end of the upper portion, the first end of the upper portion being attached to the lower portion, the upper portion having a maximum dimension perpendicular to the axis of the upper portion that is less than the maximum dimension of the lower portion, the exterior surface including a tapered portion adjacent the second end of the upper portion having a first step portion and a second step portion, and the second step portion being closer to the second end of the upper portion than the first step portion, and
- a body portion including a first end, an opposite second end, a sidewall portion, a flange portion, and a recess, the sidewall portion extending from adjacent the first end of the body portion to adjacent the second end of the body portion, the flange portion being provided at the second end of the body portion, and the recess provided in the sidewall portion adjacent the flange portion, the sidewall portion having an axis and defining an interior cavity for receiving a portion of the upper portion of the base portion, the interior cavity having an engagement surface provided therein;
- wherein the body portion is positionable with respect to the base portion by adjusting the position of the engagement surface of the interior cavity of the body portion on the tapered portion of the upper portion of the base portion.
2 more elements
An end cap comprising:
- a base portion including a lower portion and an upper portion,
- the lower portion including a first end, an opposite second end, a perimeter, an axis extending through the first end and the second end of the base portion, a lower surface, and a plurality of sidewall portions, the plurality of sidewall portions of the lower portion being positioned around portions of the perimeter of the lower portion, the plurality of sidewall portions of the lower portion including inner surfaces, the lower surface and the inner surfaces of the plurality of sidewall portions of the lower portion defining a cavity, and the inner surfaces of at least two of the plurality of sidewall portions of the lower portion each including a tab extending into the cavity, and
- the upper portion including a first end, an opposite second end, an axis extending through the first end and the second end of the upper portion, and an exterior surface extending between the first end and the second end of the upper portion, the first end of the upper portion being attached to the lower portion, the exterior surface including a tapered portion adjacent the second end of the upper portion having a first step portion and a second step portion, and the second step portion being closer to the second end of the upper portion than the first step portion,
- and
- a body portion including a first end, an opposite second end, a sidewall portion, a flange portion, and a recess, the sidewall portion extending from adjacent the first end of the body portion to adjacent the second end of the body portion, the flange portion being provided at the second end of the body portion, and the recess provided in the sidewall portion adjacent the flange portion, the sidewall portion having an axis and defining an interior cavity for receiving a portion of the upper portion of the base portion, the interior cavity having an engagement surface provided therein;
- wherein the body portion is positionable with respect to the base portion by adjusting the position of the engagement surface of the interior cavity of the body portion on the tapered portion of the upper portion of the base portion.
3 more elements
An end cap comprising:
- a base portion including a lower portion and an upper portion,
- the lower portion including a first end, an opposite second end, a perimeter, an axis extending through the first end and the second end of the lower portion, a lower surface, and a plurality of sidewall portions, the plurality of sidewall portions of the lower portion being positioned around portions of the perimeter of the lower portion, the lower surface and the inner surfaces of the plurality of sidewall portions of the lower portion defining a cavity, the inner surfaces of at least two of the plurality of sidewall portions of the lower portion each including a tab extending into the cavity, and
- the upper portion including a first end, an opposite second end, an axis extending through the first end and the second end of the upper portion, and an exterior surface extending between the first end and the second end of the upper portion, the first end of the upper portion being attached to the lower portion, the exterior surface including a tapered portion adjacent the second end of the upper portion having a first step portion and a second step portion, and
- a body portion including a first end, an opposite second end, a sidewall portion, a flange portion, and a recess, the sidewall portion extending from adjacent the first end of the body portion to adjacent the second end of the body portion, the flange portion being provided at the second end of the body portion, and the recess provided in the sidewall portion adjacent the flange portion, the sidewall portion having an axis and defining an interior cavity for receiving a portion of the upper portion of the base portion, the interior cavity having an engagement surface provided therein;
- wherein the body portion is positionable with respect to the base portion by adjusting the position of the engagement surface of the interior cavity of the body portion on the tapered portion of the upper portion of the base portion.
2 more elements
Dependencies are inferred from the claim text.