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Expandable Spacer and Method For Use Thereof

  • US 20110172716A1
  • Filed: 01/12/2010
  • Published: 07/14/2011
  • Est. Priority Date: 01/12/2010
  • Status: Active Grant
First Claim
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1. An expandable implant for insertion in a space between adjacent bony structures, comprising:

  • a threaded shaft;

    a base configured for supporting said shaft;

    means for preventing rotation of said shaft with respect to said base; and

    a gear operably coupled with said threaded shaft and said base, said gear having an interior surface including threads matably engaged with said threaded shaft, whereby rotation of said gear initiates displacement of said shaft within said base, whereby said shaft is extendable in a direction away from said base;

    whereby said base and shaft engage bony structures to support or distract said bony structures relative to each other.

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