gravitational assistant
for VP & LP

for all age groups

SA 2.0


  • ​​​​​ONE valve for premature and newborn babies, children and adults
  • three product variants: for ventriculo-peritoneal (SHUNTASSISTANT 2.0) and for lumbo-peritoneal section (SHUNTASSISTANT 2.0 LP, straight and SHUNTASSISTANT 2.0 LP, U-shaped)
  • more protection against overdrainage complications due to position-dependent function
  • uncomplicated pressure stage concept with 6 different fixed pressure stages to choose from
  • simple pressure stage coding for clear pressure stage recognition in imaging
  • MRT compatible up to 3 Tesla
  • compatible for a complementary partnership with other valves
  • slim, cylindrical and small design for a better flow
  • precise precision engineering
  • robust and durable due to the use of titanium

SA 2.0


The SHUNTASSISTANT 2.0 proves its strengths above all in partnership with other valves. Here, for example, it can be combined with a differential pressure valve to provide efficient overdrainage protection.

The SHUNTASSISTAN 2.0 is the consistent further development of the proven SHUNTASSISTANT and paediSHUNTASSISTANT. Like its predecessor, it is a separate gravitational valve that automatically adjusts the valve opening pressure to the different body positions of the patient and can thus counteract possible overdrainage while standing.

The SHUNTASSISTANT 2.0 can be integrated into the shunt system at any position. The installation height has no influence on the functionality. However, the correct position parallel to the body axis is important for the proper functioning of this gravitational valve.

The slim, cylindrical design of the SHUNTASSISTANT 2.0 has been further optimized for a better flow and the valve has been reduced in size once again. Combined with the different pressure levels offered, this valve is equally suitable for the treatment of hydrocephalus in adults and children.

Horizontal Position

The SHUNTASSISTANT 2.0 is open in the lying body position and does not present any resistance. The opening pressure in the horizontal body position is determined exclusively by another differential pressure valve which is used.

Vertical Position

When the patient rises, the SHUNTASSISTANT 2.0 is activated: The balls inside the housing close the passage of the valve due to the gravitational force, automatically increasing the opening pressure and thereby protects the patient from overdrainage while standing. Only when the patient's cerebral pressure increases to such an extent that the opening pressure in the valve is reached, the balls are pressed upwards and open the passage until the cerebral pressure has fallen again. In the upright body position, the total opening pressure is the sum of the opening pressure of the gravitational valve and that of the additional differential pressure valve.


Each preset pressure stage is specially coded and can be recognized postoperatively in imaging. The lower illustrations show the X-ray images of all available pressure stages of the SA 2.0 (10, 15, 20, 25, 30 and 35 cmH2O):

pressure stage 10 cmH2O


pressure stage 15 cmH2O


pressure stage 20 cmH2O


pressure stage 25 cmH2O


pressure stage 30 cmH2O


pressure stage 35 cmH2O


For detailed information on the optimum pressure stage setting, please refer to our pressure stage recommendation




The MIETHKE App shows clearly and quickly understandable how our valves work:

+ Influence of the body position on the opening pressure: The motion sensor of the smartphone simulates the body position of the patient: upright - inclined - lying.

+ Pressure stage recognition in the X-ray image: Every set or preset pressure stage is shown here and can be easily recognized by means of templates.

+ Simulation of adjustability: Valves can be easily adjusted with the finger and thus help to understand what is happening inside the valve.

+ View into the inside of MIETHKE valves: All valves allow a view of their construction and thus the influence of the cerebrospinal fluid flow on the functioning can be shown in an easily understandable way.

+ free for Apple and Android



SA 2.0

Product downloads


Download Area




The product finder quickly filters the relevant criteria using targeted, short questions.

We consider the individual patient situation, surgical technique and treatment plan. The questions are designed in such a way that the list of results provides a maximum of three product recommendations.




Thoralf Knitter

Director Product Development

Roland Schulz

Director Product Management

Thammo Weise

Product Management

Andreas Bunge

Product Management

Michaela Funk-Neubarth

Head of Marketing & HR

Jan Mügel

Product Management

Josefine Kehl

Press & Public Relations

August von Hardenberg

Management Consultant

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B. Braun and MIETHKE - Together for a better life with hydrocephalus

We have a long and intensive partnership with B. Braun in the field of neurosurgery. We are driven by a common vision: to improve the lives of hydrocephalus patients around the world with innovative solutions.

Our partnership is an exciting combination of B. Braun's nearly 180 years of expertise as one of the world's leading medical device and pharmaceutical companies and our agility as an innovative company and technology leader in gravitation-based shunt technology. 


Our strong partner in neurosurgery: