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Une forte concentration de protéines ou de cellules tumorales dans le LCR peuvent boucher les valves. On a tenu particulièrement compte de ce problème dans la conception de la valve MIETHKE DualSwitch® .
Le dessin spécial de la valve offre au LCR une surface extrêmement grande, lui permettant d'être efficace, même en cas d'impuretés du LCR.
Un grand nombre de publications prouvent que ce traitement est prometteur sur des patients avec HPN.
L'utilisation du titane permet d'obtenir un maximum de précision, de sécurité, de fonctionnement et de biocompatibilité.