Monopressure valves were the first type of valves made available for hydrocephalus treatment.
They offer one fixed level of pressure, which means their operating pressure cannot be changed, contrarily to an adjustable pressure valve.
Sophysa manufactures three types of monopressure valves: a ball-in-cone valve, a membrane valve and two Cruciform™ mechanism valve.
Ball-in-cone mechanism for precision and reliability.
Burr-Hole type, non-metallic membrane valve, safe for MRI