Intraspinal device deployed through percutaneous approach into subarachnoid or intradural space of vertebral canal to protect spinal cord from external compression
To shield the spinal cord from an external compression, a barrier device having a self-expanding frame and covered with a non-porous elastomeric sheet is routed through either the subarachnoid or intradural space to the site of the compression through the lumen of a delivery catheter that is percutaneously inserted using an introducer needle. When the distal end of the delivery catheter is proximate the site of the compression, the barrier device is pushed out the distal end of the catheter and allowed to self-expand so as to be interposed between the compression and the spinal cord to prevent impingement.
