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Adjustable valve with gravitational unit for the treatment of hydrocephalus

MIETHKE gravitational valves provide a reliable solution in prevention of overdrainage complications [1, 2] associated with the management of hydrocephalus.
proGAV® 2.0 represents the latest development by refining our existing proGAV® technology to better meet the needs of our customers and their patients.
proGAV® 2.0 offers the reliability of our existing technology with a new tactile “Feedback” mechanism and “Soft-Touch” instrumentation. 
The adjustable unit is equipped with a special valve surface: By using slight pressure with your finger, the “Active-Lock” mechanism of the valve is released and a tactile feedback is received.
The combination of the refined proGAV® technology and “Soft-Touch” instrumentation provides comfort for patients and security against inadvertent readjustment caused by magnetic fields up to 3 Tesla [3].
With the new proGAV® 2.0 Compass the opening pressure of the adjustable unit can be identified quickly, without having to expose the patient to X-ray.


  • 3-tesla MRI Conditional
  • Pressure levels for continuous adjustment between 0 and 20 cmH2O
  • X-ray-free verification of opening pressure setting
  • Tactile feedback
  • Soft and secure adjustment by “Soft-Touch” Adjustment and Measurement Tools


The MIETHKE proGAV® 2.0 is available as a single valve or as a shunt system with different components.


  • Treatment of Hydrocephalus

[1] Thomale UW, Gebert AF, Haberl H, Schulz M. Shunt survival rates by using the adjustable diff erential pressure valve combined with a gravitational unit (proGAV) in pediatric neurosurgery. Childs Nerv Syst. 2013 Mar;29(3):425-31.
[2] Lemcke J, Meier U, Müller C, Fritsch MJ, Kehler U, Langer N, Kiefer M, Eymann R, Schuhmann MU, Speil A, Weber F, Remenez V, Rohde V, Ludwig HC, Stengel D. Safety and effi cacy of gravitational shunt valves in patients with idiopathic normal pressure hydrocephalus: a pragmatic, randomised, open label, multicentre trial (SVASONA). J Neurol Neurosurg Psychiatry. 2013 Aug;84(8):850-57.
[3] Allin DM, Czosnyka ZH, Czosnyka M, Richards HK, Pickard JD. In vitro hydrodynamic properties of the Miethke proGAV hydrocephalus shunt. Cerebrospinal Fluid Res. 2006 Jun;3:9. doi:10.1186/1743-8454-3-9.