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Spinal fixation apparatus

  • US 4,573,454 A
  • Filed: 05/17/1984
  • Issued: 03/04/1986
  • Est. Priority Date: 05/17/1984
  • Status: Expired due to Fees
First Claim
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1. An implantable device for fixing the spinal column comprising:

  • a generally U-shaped first fixation element comprising two rigid, spaced apart, generally parallel elongate legs rigidly connected together and each having a free end portion terminating in an end, said legs adapted to be located at each side of the spinous processes between the spinous and respective transverse processes,a generally U-shaped second fixation element comprising two rigid, generally parallel, spaced apart elongate sleeves rigidly connected together, the free end portions of the respective legs of said first fixation element being telescopically slidably received in said sleeves for longitudinal extension movement, the legs of said first element terminating within said sleeves such that the ends are completely disposed in said sleeves whereby the device is capable of lengthening in the direction of growth of the spinal column after implantation on the spine.

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