Arduino based Dialyser Reprocessing System

Hemodialysis is a process of eliminating metabolic wastes from the blood in humans who suffer with renal failure or End Stage Renal Disease (ESRD). In the heart of the purifying process lies an exchanging apparatus called the Dialyzer, where it acts as a semipermeable membrane for the blood metabolic constituents to get eliminated from the system and sometimes excess water is also eliminated based on the patient’s condition. These dialyzers are available in commercial market in two variants, one as a disposable and another as a reusable, where the latter can be multiple cycles of purification. In order to be useful for the multiple times or multiple cycles, a dialyzer is put in the dialyzer reprocessing unit (DRU). A DRU will ensure that the biological fluid is cleaned and disinfected with various fluids, filled with bacteria repellent fluid for later usages. DRUs are increasingly expensive in commercial aspects, in this paper a low cost dialyzer reprocessing prototype has been fabricated using an Arduino UNO board for the process control using R.O Water, Hydrogen peroxide and formalin as cleansing and disinfectant agents.