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US 11,672,670 B2Granted
Expandable spinal implant system and method
AssigneeWarsaw Orthopedic, Inc.
InventorsJulien Prevost, Robert Loke
Life of this patent
Estimating the term…
Abstract
A spinal implant includes a first member having a wall that defines an axial cavity. A second member extends between a first end and a second end and defines a longitudinal axis. The second member is configured for disposal with the axial cavity and translation relative to the first member. A third member has an outer surface engageable with tissue and an inner surface disposed to dynamically engage the first end in response to the engagement of the outer surface with the tissue. Systems and methods are disclosed.
Claims20
A method comprising:
- inserting an implant into a vertebral space;
- and
- expanding the implant within the intervertebral space,
- wherein the implant comprises:
- an inner member extending between a first end and a second end and defining a longitudinal axis, the inner member including a cavity,
- a cap including a top wall and a side wall extending from the top wall, the side wall including opposite inner and outer surfaces, the outer surface defining a perimeter of the cap, and
- a post coupled to the cap, the post having a first end movably disposed in the cavity and an opposite second end positioned outside of the perimeter,
- wherein the cavity is defined by an arcuate first surface of the inner member that is positioned between second and third surfaces of the inner member, the first, second and third surfaces each defining a stop limit that restricts movement of the cap relative to the inner member.
5 more elements
A method comprising:
- inserting an implant into a vertebral space;
- and
- expanding the implant within the intervertebral space,
- wherein the implant comprises:
- an inner member extending between a first end and a second end and defining a longitudinal axis, the inner member including a cavity,
- a cap including a top wall and a side wall extending from the top wall, the side wall including opposite inner and outer surfaces, the outer surface defining a perimeter of the cap, and
- a post coupled to the cap, the post having a first end movably disposed in the cavity and an opposite second end positioned outside of the perimeter,
- wherein the implant includes an outer member and a band, the inner member being positioned within the outer member such that the band is positioned in a cavity of the outer member and between the inner member and the outer member, and
- wherein expanding the implant within the intervertebral space comprises inserting an instrument through the outer member such that the instrument engages teeth of the inner member and rotation of the instrument translates the inner member relative to the outer member along the longitudinal axis such that the band slidably rotates within the cavity.
6 more elements
A method comprising:
- inserting an implant into a vertebral space;
- and
- expanding the implant within the intervertebral space,
- wherein the implant comprises:
- an inner member extending between a first end and a second end and defining a longitudinal axis, the inner member including a cavity,
- a cap including a top wall and a side wall extending from the top wall, the side wall including opposite inner and outer surfaces, the outer surface defining a perimeter of the cap, and
- a post coupled to the cap, the post having a first end movably disposed in the cavity and an opposite second end positioned outside of the perimeter,
- wherein the implant includes an outer member and a band, the inner member being positioned within the outer member such that the band is positioned in a cavity of the outer member and a helical groove of the inner member, and
- wherein expanding the implant within the intervertebral space comprises inserting an instrument through the outer member such that the instrument engages teeth of the inner member and rotation of the instrument translates the inner member relative to the outer member along the longitudinal axis such that the band slidably rotates within the cavity and translates within a helical groove.
6 more elements
Dependencies are inferred from the claim text.