Plasma disc repair

The present disclosure includes devices and methods of treating a herniated disc comprising treating an opening in a vertebral disc by applying plasma to the vertebral disc, wherein the vertebral disc comprises a nucleus portion and an outer annulus fibrosus portion, and wherein the plasma seals the opening in the vertebral disc. The devices and method comprises a plasma delivery device configured to be handheld and used percutaneously or in minimally invasive surgery. The vertebral disc, which comprises a nucleus pulposus and an outer annulus fibrosus, can be herniated with a rupture caused by a tear or opening in the annulus fibrosus, that can be repaired when the annulus fibrosus is sealed by the use of the plasma.