Medical apparatuses and instruments for extracorporeal blood treatment; medical apparatuses and instruments for the treatment of kidney failure; medical apparatuses and instruments for the preparation for medical use of hemodialysis liquids and substitution liquids for hemofiltration and hemodiafiltration; hemodialysis machines; hemofiltration machines; hemodiafiltration machines; hemodialyzers; hemofilters; filters for hemodialysis liquid; filters for substitution liquid for hemofiltration a...