For the accurate diagnosis of Normal Pressure Hydrocephalus (NPH), surgeons use state-of-the-art Silverline® Antimicrobial Lumbar Drainage Catheters. The lumbar CSF-drainage process is done through these catheters. An advantage of the catheter is that of radiopaque antiseptic polyurethane. To ensure success in the incision, the catheter is fixed with centimeter marks. A recent study conducted in the University of Frankfurt shows that Silverline® Antimicrobial Lumbar Drainage Catheter can display lower rate of vasospam for patients with lumbar drainage.