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US 2021/0196476 A1Published application
Spinal implant system
AssigneeWarsaw Orthopedic, Inc.
InventorsThomas J. Stinchfield, Julien J. Prevost, Robert M. Loke
Life of this patent
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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 first end, an opposite second end, a base portion, and a body portion,
- the base portion including a lower portion and an upper portion, the lower portion being provided at the first end of the end cap, and the upper portion extending from the lower portion to adjacent the second end of the end cap,
- the lower portion including a first end, an opposite second end, a perimeter, a mid-longitudinal axis extending through the first end and the second end, a lower surface, and a plurality of sidewall portions, the plurality of sidewall portions of the lower portion being spaced apart from one another adjacent the perimeter of the lower portion, the plurality of sidewall portions of the lower portion including inner surfaces, and at least two of the plurality of sidewall portions of the lower portion being spaced apart from one another across a portion of the lower surface, 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 mid-longitudinal axis of the lower portion in a first plane extending through the plurality of sidewall portions, and
- the upper portion including a first end, an opposite second end, a mid-longitudinal 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, the first end of the upper portion being attached to the lower portion, the upper portion having a maximum dimension perpendicular to the mid-longitudinal axis of the upper portion in a second plane extending through the exterior surface 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 tapered portion residing in a third plane and a fourth plane that are perpendicular to the mid-longitudinal axis of the upper portion, the tapered portion having a maximum dimension in the third plane extending through the first step portion, and a maximum dimension in the fourth plane extending through the second step portion, the maximum dimension in the fourth plane being less than the maximum dimension in the first plane, and the second step portion being closer to the second end than the first step portion, and
- the body portion including a sidewall portion, a flange portion, and a recess, the sidewall portion extending from adjacent the first end of the end cap to adjacent the second end of the end cap, the flange portion being provided at the second end of the end cap, and the recess provided in the sidewall portion adjacent the flange portion, the sidewall portion having a mid-longitudinal 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 therein for contacting at least a portion of the tapered portion of the upper portion of the base portion;
- 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;
- and
- wherein the cavity of the end cap is configured to receive one of a second flange portion of a spinal implant and a third flange of a second end cap similar to the end cap, the tabs of the end cap are configured to be received in a corresponding one of a second recess of the spinal implant and a third recess of the second end cap similar to the end cap to facilitate attachment of the end cap to a corresponding one of the spinal implant and the second end cap similar to the end cap.
5 more elements
An end cap comprising:
- a first end, an opposite second end, a base portion, and a body portion,
- the base portion including a lower portion and an upper portion, the lower portion being provided at the first end of the end cap, and the upper portion extending from the lower portion to adjacent the second end of the end cap,
- the lower portion including a first end, an opposite second end, a perimeter, a mid-longitudinal axis extending through the first end and the second end, a lower surface, and a plurality of sidewall portions, the plurality of sidewall portions of the lower portion being spaced apart from one another adjacent the perimeter of the lower portion, the plurality of sidewall portions of the lower portion including inner surfaces, and at least two of the plurality of sidewall portions of the lower portion being spaced apart from one another across a portion of the lower surface, 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 mid-longitudinal axis of the lower portion in a first plane extending through the plurality of sidewall portions, and
- the upper portion including a first end, an opposite second end, a mid-longitudinal 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, the first end of the upper portion being attached to the lower portion, the upper portion having a maximum dimension perpendicular to the mid-longitudinal axis of the upper portion in a second plane extending through the exterior surface 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 tapered portion residing in a third plane and a fourth plane that are perpendicular to the mid-longitudinal axis of the upper portion, the tapered portion having a maximum dimension in the third plane extending through the first step portion, and a maximum dimension in the fourth plane extending through the second step portion, the maximum dimension in the fourth plane being less than the maximum dimension in the first plane, and the second step portion being closer to the second end than the first step portion, and
- the body portion including a sidewall portion, a flange portion, and a recess, the sidewall portion extending from adjacent the first end of the end cap to adjacent the second end of the end cap, the flange portion being provided at the second end of the end cap, and the recess provided in the sidewall portion adjacent the flange portion, the sidewall portion having a mid-longitudinal 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 therein for contacting at least a portion of the tapered portion of the upper portion of the base portion;
- 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 first end, an opposite second end, a base portion, and a body portion,
- the base portion including a lower portion and an upper portion, the lower portion being provided at the first end of the end cap, and the upper portion extending from the lower portion to adjacent the second end of the end cap,
- the lower portion including a first end, an opposite second end, a perimeter, a mid-longitudinal axis extending through the first end and the second end, a lower surface, and a plurality of sidewall portions, the plurality of sidewall portions of the lower portion being spaced apart from one another adjacent 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 lower portion having a maximum dimension perpendicular to the mid-longitudinal axis of the lower portion in a first plane extending through the plurality of sidewall portions, and
- the upper portion including a first end, an opposite second end, a mid-longitudinal 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, 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, a third plane perpendicular to the mid-longitudinal axis of the upper portion extending through the first step portion, and a fourth plane perpendicular to the mid-longitudinal axis of the upper portion extending through the second step portion, a maximum dimension in the third plane extending through the first step portion being greater than a maximum dimension in the fourth plane extending through the second step portion, and
- the body portion including a sidewall portion, a flange portion, and a recess, the sidewall portion extending from adjacent the first end of the end cap to adjacent the second end of the end cap, the flange portion being provided at the second end of the end cap, and the recess provided in the sidewall portion adjacent the flange portion, the sidewall portion having a mid-longitudinal 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 therein for contacting at least a portion of the tapered portion of the upper portion of the base portion;
- 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
Dependencies are inferred from the claim text.