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US 12,004,963 B2Granted
Expandable spinal implant system and method
AssigneeWarsaw Orthopedic, Inc.
InventorsAdriaan J. Kuyler, Anthony J. Melkent, Keith E. Miller
Life of this patent
Estimating the term…
Abstract
An expandable spinal implant is provided having a frame with a distal wall for retaining an expansion plug such that bone growth promoting material may be introduced to a proximal portion of the implant after expansion. Various implants, systems and methods are disclosed.
Claims19
An expandable spinal implant configured to be deployed between a collapsed position and an expanded position, the expandable spinal implant comprising:
- a frame having an aperture therethrough;
- a plug movably disposed in the aperture, the plug including a first post and a second post;
- a first endplate pivotally engaged with the frame, the first endplate including a first channel configured to receive the first post, wherein the first endplate is configured to pivot outward from the frame as the plug is moved in a distal direction;
- and
- a second endplate pivotally engaged with the frame, the second endplate including a second channel configured to receive the second post, wherein the second endplate is configured to pivot outward from the frame as the plug is moved in the distal direction,
- wherein the first channel is formed in a first wall of the first endplate, and the second channel is formed in a second wall of the second endplate, the first wall being closer to a mid-longitudinal axis of the spinal implant than the second wall.
3 more elements
An expandable spinal implant configured to be deployed between a collapsed position and an expanded position, the expandable spinal implant comprising:
- a frame having an aperture therethrough;
- a plug movably disposed in the aperture, the plug including a head having, a first post, a second post, a first ramped surface, and a second ramped surface;
- a first endplate pivotally engaged with the frame, the first endplate including a first wall, a first channel, and a first angled surface, wherein the first channel is formed in the first wall and the first post is configured engage portions of the first wall surrounding the first channel, the first ramped surface of the plug is configured to engage the first angled surface of the first endplate, and movement of the plug in a distal direction causes the first endplate to pivot outward from the frame via interaction of the first post in the first channel and interaction of the first ramped surface with the first angled surface;
- and
- a second endplate pivotally engaged with the frame, the second endplate including a second wall, a second channel, and a second angled surface, wherein the second channel is formed in the second wall and the second post is configured to engage portions of the second wall surrounding the second channel, the second ramped surface of the plug is configured to engage the second angled surface of the second endplate, and movement of the plug in the distal direction causes the second endplate to pivot outward from the frame via interaction of the second position in the second channel and interaction of the second ramped surface with the second angled surface;
- wherein the first channel is formed in a first wall of the first endplate, and the second channel is formed in a second wall of the second endplate, the first wall being closer to a mid-longitudinal axis of the spinal implant than the second wall.
3 more elements
An expandable spinal implant comprising:
- a frame having an aperture therethrough;
- a plug including a first post and a second post;
- a first endplate pivotally engaged with the frame, the first endplate including a first channel configured to receive the first post;
- and
- a second endplate pivotally engaged with the frame, the second endplate including a second channel configured to receive the second post;
- wherein the first endplate and the second endplate are each configured to pivot outward from the frame as the plug is moved in a distal direction;
- wherein the first channel is formed in a first wall of the first endplate, and the second channel is formed in a second wall of the second endplate, the first wall being closer to a mid-longitudinal axis of the spinal implant than the second wall.
4 more elements
Dependencies are inferred from the claim text.