[Perfusion systems for hemodialysis].

On the basis of generalizing the principles of construction and of technical implementation of the extracorporeal blood-transport devices applied in artificial purification, which were described in the 1st part of the paper, mathematical models are suggested to calculate the stroke volume and the consumption of 2-roller perfusion pumps now used in hemodialysis. The above models were made use of to study the influence of the constructive and operational characteristics per consumption originated by the mentioned pumps.

[Perfusion systems for hemodialysis].

According to generalized designs and technologies of devices used for extracorporeal blood transport in artificial purification and with due respect to their clinical usage, the modern perfusion systems, whose elements of hemodialysis units, can be classified by: a method of connecting them to the cardiovascular system of the patient, a type of perfusion pumps that are in use, and a technique regulating the extracorporeal perfusion velocity and the pressure at the exchanger inlet. The suggested classifications, structure models and results of research of the functional and technical parameters of perfusion systems showed their unified design principles irrespective of construction peculiarities, which can ensure the unified, reproductive, technological, simple and efficient application of the apparatuses now at the stage of creation.