The Delta valve is designed to minimize over drainage of CSF and maintain intraventricular pressure (IVP) within a normal physiologic range, regardless of patient position. The normally closed delta chamber mechanism opens in response to positive intraventricular pressure. Working with the membrane valve, this mechanism minimizes over drainage by utilizing the principle of hydrodynamic leverage. All Delta valves incorporate an injectable reservoir dome, occluders for selective flushing, and a non-metallic design. The valves are fabricated of dissimilar materials - polypropylene and silicone elastomer - reducing valve sticking and deformation. The non-metallic design of the valves ensures non-interference with MRI or CT scans. Neither the finished product, nor materials used during manufacture of product, contain latex. Delta valves are available in multiple configurations meeting the needs of all patient groups.
