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Intervertebral locking device

  • US 5,360,430 A
  • Filed: 07/29/1993
  • Issued: 11/01/1994
  • Est. Priority Date: 07/29/1993
  • Status: Expired due to Fees
First Claim
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1. An intervertebral locking device comprising:

  • a bottom base having an upper planar surface with a fastening member attached thereto and having a lower planar surface with one or more protruded bodies;

    a bracing member having a lower end united with said fastening member attached to said upper planar surface of said bottom base and an upper end;

    a top base having a lower planar surface with a fastening member attached thereto which, in turn, is attached to the upper end of said bracing member, and having an upper planar surface with one or more protruded bodies; and

    a pair of adjusting arms each having one end serving as an adjusting end to fasten adjustably with said bottom base and said top base respectively, each of said adjusting arms further having another end acting as a locking end to anchor securely in an appropriate position with one of said locking ends being adapted to be secured to a vertebra adjacent to a deformed vertebra under treatment;

    wherein said adjusting ends of said adjusting arms are securely fastened with said bottom base and said top base respectively after said adjusting ends are first adjusted to locate appropriately said locking ends;

    wherein said bottom base and said top base are provided respectively with a base plate having a plurality of through holes, a fastening plate having a plurality of threaded holes corresponding in number and location to said through holes, and a plurality of screws which are put through said through holes of said base plate to engage said threaded holes of said fastening plate in such a manner that said screws penetrate said fastening plate to form a plurality of said protruded bodies; and

    wherein said adjusting end of each of said adjusting arms is received in a slot centrally locate between said bottom base and said fastening plate.

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