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Expandable fusion device and method of installation thereof

  • US 8,062,375 B2
  • Filed: 10/15/2009
  • Issued: 11/22/2011
  • Est. Priority Date: 10/15/2009
  • Status: Active Grant
First Claim
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1. An intervertebral implant comprising:

  • a body portion having a first end, a second end, a first side portion connecting the first end and the second end, and a second side portion connecting the first end and the second end, the first end, second end, first side portion and second side portion defining a central opening;

    a first endplate having an upper side, a lower side, and an extension, the extension extending from the lower side into the central opening;

    a second endplate having an upper side, a lower side, and an extension, the extension extending from the lower side into the central opening;

    a translation member having at least one expansion portion, at least a portion of the translation member is received within the central opening; and

    a plurality of pins, the pins having a first end, a second end, and a central portion, the central portion being received by the expansion portion,wherein the extensions of the first and second endplates include at least one slot for receiving the first end or second end of the pin, andwherein movement of the translation member in a first direction causes the first and second endplates to move in a direction away from the body portion and the movement of the translation member in a second direction causes the first and second endplates to move in a direction towards the body portion.

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