As versatile as borehole reservoirs & lying flat on the skull

MIETHKE Prechambers

In addition to a shunt system a prechamber/CONTROL RESERVOIR can be positioned on the top of the skull.

Such a CONTROL RESERVOIR or a prechamber allows the measurement of intraventricular pressure, the injection of medication and, if necessary, a valve control. Liqour can be removed and medication added by puncturing the silicone membrane with a cannula. The solid titanium base prevents the puncture with a cannula.


All MIETHKE CONTROL RESERVOIRS and prechambers are clearly visible in X-ray and MR compatible, i.e. magnetic resonance (MR) or computer tomography (CT) examinations can be performed without affecting the patient.

The reservoirs are designed for catheters with an inner diameter of approximately 1.2 mm and an outer diameter of approximately 2.5 mm (except LP prechamber).




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The prechamber is built with a diameter of 20 mm and is available either with two connections or one connection and a distal catheter.



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The CONTROL RESERVOIR has a non-return valve in the proximal part, which allows CSF to be pumped only in the draining direction.
In addition to targeted drainage in the distal direction, this mechanism also allows a control of the distal drainage part (reservoir difficult to press down) as well as the ventricular catheter (reservoir does not refill after pressing down).




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As opposed to the prechamber, the CSF-Port possesses only one connection for the ventricular catheter. The CSF-Port is used in patients who need longterm administration of medication, which is injected into the shunt system.


Pediatric Prechamber

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The pediatric version of the prechamber is similar in construction to the standard prechamber, with a diameter that is slightly smaller (14 mm).

Prechamber for LP-drainage


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A special prechamber is available for lumbar-peritoneal drainage. The inlet connector has a smaller diameter to connect the spinal catheter.


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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: