[Determination of flow capacity in valves for ventriculo-auricular drainage].
In model experiments both of the customary valves for ventriculo-auricular draining (Spitz-Holter valve and Pudenz-Heyer valve) are tried. Aperient pressures as well as flow amounts in relation to given pressure values are determined and plotted. In long-term examination for 1 year both kinds of valves exhibit irregular flow capacities, that have no significant tendency in the Spitz-Holter valve, whereas the flow through the Pudenz-Heyer valve is more and more diminished during the course of time.
D002557:Cerebrospinal Fluid Shunts; D006325:Heart Atria; D006801:Humans; D006849:Hydrocephalus / Q000601:surgery*; D012212:Rheology
Zur Bestimmung von Durchflussmengen an Ventilen zur ventrikulo-aurikulären Drainage.