Patent ID: 8357147

Claim:
A method of repairing a defect in an annulus fibrosus of an intervertebral disc, without excising the entire nucleus pulposus of the disc, comprising: inserting an introducer needle having a tip through the annulus fibrosus by puncturing the annulus fibrosus with the introducer needle so that the tip of the introducer needle is in the nucleus pulposus, then injecting an in situ curable, bio-compatible polymerizable or polymeric material composition that includes a cross-linking agent into the disc through the introducer needle directly or indirectly so that the in situ curable composition contacts a defect in the annulus fibrosus; and curing said material in situ, wherein the injection of the situ curable, bio-compatible polymerizable or polymeric material composition is performed using an apparatus for percutaneous delivery of a sealant comprising: at least two fluid reservoirs, the introducer needle having a distal tip that is in fluid communication with at least one reservoir, a fluid delivery tube that is in fluid communication with a second reservoir, wherein the fluid delivery tube has a tip and wherein the fluid delivery tube is configured so that the tip of the fluid delivery tube does not extend past the distal tip of the introducer needle during use.