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Apparatus and kit for injecting a curable biomaterial into an intervertebral space

  • US 8,337,557 B2
  • Filed: 06/29/2005
  • Issued: 12/25/2012
  • Est. Priority Date: 06/29/2004
  • Status: Active Grant
First Claim
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1. A kit of parts for use in treating a damaged or diseased spinal disc having an outer annulus and an inner nucleus pulposus, comprising:

  • a cannula having a distal end, a proximal end and an inner opening extending therethrough, the distal end of said cannula adapted to be inserted through said disc annulus;

    a sharp-tipped stylet configured to fit within said inner opening and adapted to be removed from said cannula after insertion of said cannula through said annulus;

    an injection needle having a distal end and a proximal end, said distal end adapted to be inserted into said proximal end of said cannula and configured for relatively close sliding fit therewithin, said injection needle having a length sufficient so that said distal end is disposed inside the disc annulus when the needle is inserted into said cannula;

    a syringe for containing a quantity of curable biomaterial, said syringe adapted to be coupled to the proximal end of said needle and to inject said biomaterial into said needle under pressure; and

    a quantity of curable biomaterial that upon curing emulates the properties of natural nucleus pulposus.

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