×

Expandable spacer and method of use thereof

  • US 9,492,283 B2
  • Filed: 12/13/2012
  • Issued: 11/15/2016
  • Est. Priority Date: 01/12/2010
  • Status: Active Grant
First Claim
Patent Images

1. A method for facilitating fusion of two adjacent joint surfaces in a patient comprising the steps of:

  • accessing a site in the patient'"'"'s body having two adjacent joint surfaces to be fused;

    providing an expandable implant having a first, collapsed height;

    preparing a space between the two adjacent joint surfaces for insertion of the implant;

    inserting the implant into the prepared space;

    wherein the expandable implant comprises;

    a first and a second threaded shaft;

    a first gear and a second gear;

    a base plate, the first and second gears are rotatably and non-translatable coupled to the base plate; and

    the first and second gears operably coupled with the first and second threaded shafts, said first and second gear having interior surfaces including threads matably engaged with said first and second threaded shafts, whereby rotation of said first and second gears initiates displacement of said first and second threaded shafts, whereby said first and second threaded shafts are extendable in a direction away from said base plate;

    wherein the first and second shafts are coupled to a top plate,wherein the first and second gears are positioned substantially perpendicular to the base plate and adjacent to one another,wherein the first and second gears engage with each other,expanding the expandable implant; and

    closing the site in the patient'"'"'s body.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×