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Gravitational valve for the treatment of hydrocephalus

The GAV® 2.0 is the further development of the proven GAV® and paediGAV® and like its predecessors a gravitational valve consisting of a differential pressure and gravitational unit.
The combination of a differential pressure unit and gravitational unit ensures an automatic opening pressure adjustment as a function of
the position of the patient's body and in that way counteracts complications due to excess drainage.


  • Gravitational technology: prevents over- and underdrainage complications and meets the physiological needs of the patients.
  • The slender cylindrical design allows for quick and easy implantation in adults or pediatric hydrocephalus.
  • Two additional variants for lumbar CSF drainage.


  • Valve housing length: 13.4 mm
  • Outer diameter: 4.2 mm
  • Material: Titanium


Because the opening pressure of the valve depends on the position of the patient, GAV® 2.0 must be implanted parallel to the body axis.

Depending on the height and other properties of the patient, 6 different pressure setting are offered, which should be chosen accordingly (see brochure / pressure recommendation).


Treatment of Hydrocephalus