Substitution fluid feed monitoring method for extracorporal blood treatment device uses measured propagation time of substitution fluid feed pump pressure wave

摘要

The monitoring method uses measurement of the propagation time of the pressure wave of the substitution fluid feed pump (22) between the latter and the extracorporal blood circuit (5A) for determining the substitution fluid feed ahead or after the blood filter (1). An Independent claim for an extracorporal blood treatment device is also included.