• [Translate to English:] M.blue Shunt
  • [Translate to English:] MyHCandME App - Patiententagebuch
  • Articles
  • Shunt infection: How it develops and how it can be prevented
    • Shunt therapy is the most common treatment for hydrocephalus, but carries the risk of serious complications such as shunt infections. Find out more about symptoms, causes, treatment options and preventive approaches such as antibiotic-impregnated catheters.
  • LP shunt vs. VP shunt
    • The choice between LP and VP shunt is essential for the successful treatment of hydrocephalus. This article provides a detailed comparison, looking at the indications, benefits and potential risks of both types of implantation - informed insights for better treatment decisions.
  • The measurement of intracranial pressure (ICP)
    • The measurement and interpretation of intracranial pressure (ICP) is a very helpful aid in the diagnosis and treatment of many brain diseases. The article explains the technical requirements for ICP measurements, the interpretation of ICP values in intracranial pressure measurements and their significance for effective treatment planning.
  • The Innovative Leap to Telemetric Pressure Sensors
    • Telemetric pressure sensors are setting new standards in the hydrocephalus shunt therapy. The article analyzes the technical limitations of conventional ICP sensors and presents trend-setting innovations in the field of measurement with telemetric pressure sensors - for more precise and efficient treatments.
  • Over- and underdrainage - the most common “side effects” of shunt systems
    • Shunt systems in hydrocephalus therapy have a long history, but over- and underdrainage are still common complications with their potential consequences, such as slit ventricle syndrome. The article looks at the causes, consequences and therapeutic approaches of both problems and discusses whether gravitational technology offers a possible remedy.
  • Foundations of fluid mechanics, or of beakers, bottles and people
    • The article introduces fluid mechanics and explains how the cerebrospinal fluid works in the human brain. It explains the hydrodynamics in the shunt system and shows why the circulation and pressure of the cerebrospinal fluid are important factors for optimizing shunt therapies.

GAV 2.0

ONE valve
for premature and newborn babies, children and adults

GAV 2.0
FEATURES
FUNCTIONALITY
PRESSURE LEVEL DETECTION
Downloads
CONTACT

GAV 2.0

FEATURES

  • ONE valve for premature and newborn babies, children and adults

  • three product variants: for ventriculo-peritoneal (GAV 2.0) and lumbo-peritoneal sections (GAV 2.0 LP, straight and GAV 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 level coding for clear pressure level detection in imaging

  • MRT compatible up to 3 Tesla

  • slim, cylindrical and small design for a better flow

  • precise precision engineering

  • robust and durable due to the use of titanium

     

GAV 2.0

FUNCTIONALITY

The GAV 2.0 is the consistent further development of the proven GAV and paediGAV and like its predecessors, it operates position-dependent and consists of a differential pressure and gravity unit.

The GAV 2.0 must always be implanted parallel to the body axis for optimal function. It then automatically adapts its opening pressure to the different body positions of the patient and can thus meet the different requirements of a shunt system in lying and standing positions and, above all, counteract the risk of possible overdrainage in the upright body position.

One valve for children and adults

The slim cylindrical design of its predecessor has been further optimised and further reduced in the GAV 2.0 for a better flow pattern. Coupled with the modified pressure stage concept, the GAV 2.0 is suitable for the treatment of hydrocephalus in premature and newborn babies, children and adults.

Horizontal Position

The valve opening pressure of the GAV 2.0 is only determined by the micro-spiral spring of the differential pressure unit when the valve is lying down. The gravitational unit is not active in this body position and is always open. If the patient's cerebral pressure (ICP) exceeds the opening pressure of the microcoil spring, the closing ball moves out of the cone, leaving a gap for drainage.

Vertical Position

In the vertical body position, the gravitational and differential pressure unit act together. As soon as the patient stands up, the balls in the gravitational unit are activated, closing the passage and using gravity to increase the valve opening pressure. In addition to the opening pressure of the differential pressure unit, the weight of the balls must now be overcome. Only when the sum of intracranial pressure (ICP) and hydrostatic pressure exceeds the opening pressure of both units, drainage is possible again. This significantly higher opening pressure for the standing body position compared to the lying position takes into account the physical requirements of a shunt system and reduces the risk of overdrainage.


 

 

PRESSURE LEVEL DETECTION IN X-RAY IMAGE

Each preset pressure stage is specially coded and can be recognized postoperatively on the imaging. The lower illustrations show the X-ray images of all available pressure stages of the GAV 2.0 (5/20, 5/25, 5/30, 5/35, 10/25 and 10/30 cmH2O):

 

pressure stage 5/20 cmH2O

 

 

pressure stage 5/25 cmH2O

 

 

pressure stage 5/30 cmH2O

 

 

pressure stage 5/35 cmH2O

 

 

pressure stage 10/25 cmH2O

 

 

pressure stage 10/30 cmH2O

 

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

 

 

MIETHKE APP - UNDERSTANDING VALVES EASILY


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

 

   

GAV 2.0

Product downloads

 

Download Area

 

 

Doctor on rounds

OUR MIETHKE PRODUCT FINDER

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.

 

FURTHER INFORMATION

DO YOU HAVE ANY QUESTIONS ABOUT THE PRODUCT?
WE ARE THERE FOR YOU

+49 331 620 83 0
info@miethke.com

Thoralf Knitter

Director Product Development

Roland Schulz

Director Product Management

Thammo Weise

Product Management

Andreas Bunge

Product Management

Michaela Funk-Neubarth

Head of Marketing

Jan Mügel

Product Management

Josefine Kehl

Press & Public Relations

August von Hardenberg

Management Consultant

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Patientin und Ingenieure sind gemeinsam abgebildet

OUR PARTNERSHIP
WITH B. BRAUN

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:

www.bbraun.com