uv glow of the photochromic compound beneath the skin such uv handheld devices are well known within the art and are mentioned for convenience in the use of the present invention a patient in need of an av graft would have a graft of the present invention surgically implanted and positioned in an appropriate place between an artery and a vein for access by a healthcare worker or technician once the graft of the present invention is positioned in place in a patient the healthcare worker would turn on a high intensity uv light and shine it in the general area an arm or leg for example where the graft was placed and look for the appropriate glow the worker could then while observing the glow insert the appropriate dialysis needles into the graft for use in dialysis of the patient in one embodiment each site for needle insertion is color coded a different glowing color so that placement of each needle one close to the artery and one close to the vein can easily be identified by use of separate colors of glowing polymer for each position now referring to the drawings fig1 is a perspective view of an embodiment of a uv glowing graft 1 the graft 1 is positioned between an artery 2 and a vein 3 arrows 4 within the artery 2 and vein 3 indicate the direction of blood flow within that vessel in this embodiment an artery.