| MONOSTEP-VENTIL - description |
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| In contrast to the DUALSWITCH-VALVE, the MONOSTEP-VALVE has only one valve chamber and no gravity unit, so that it operates as a standard differential pressure valve. |
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Fig. 1 |
| Fig. 2 |
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| The MONOSTEP-VALVE is outfitted with a conical ball valve that provides optimal valve closure and accurate pressure regulation. Its unique configuration with a relatively large flow volume and a robust yoke spring ensure reliable operation. Thus, despite variable external and internal factors (subcunaeous pressure, fluid), stable pressure regulation and hence accurate valve performance ist ensured. |
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| The unique design of the MONOSTEP-VALVE makes it particularly suitable for patients with high protein concentrations in their cerebrospinal fluid. |
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| Horizontal position |
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The MONOSTEP-VALVE is particularly suitable for passive, recumbent patients
For active patients who will stand up or sit, we recommend combining this valve with a SHUNTASSISTANT or paediSHUNTASSISTANT, respectively. |
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Fig. 4
Fig. 5 |
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| The membrane edge is pressed onto the hemispheric shape in the casing; the valve blocks any fluid drainage (Fig. 5). Fig. 5 shows the valve open. The patient´s ventricular pressure is raised, the spring pressure is overcome, and the membrane is pressed up from the hemispheric structure, thereby creating a gap for fluid drainage. The pressure cannot rise any further. |
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