Apparatus and kit for injecting a curable biomaterial into an intervertebral space
First Claim
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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Accused Products
Abstract
A kit of parts is provided that comprises: a cannula, the distal end of the cannula adapted to be inserted through the disc annulus; an injection needle, the distal end adapted to be inserted into the proximal end of the cannula and configured for relatively close sliding fit therewithin; and a syringe for containing a quantity of curable biomaterial, the syringe adapted to be coupled to the proximal end of the needle and to inject the biomaterial into the needle under pressure. The kit may further comprise a quantity of curable biomaterial that is selected to have upon curing strong adhesive properties such as a protein polymer.
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Citations
17 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification