Patent ID: 8425471

Claim:
A reagent supply arrangement for a hemodialysis system, including: an E-prong connector, having three parallel prongs that are separate from each other, with two outer prongs extending lengthwise in a common plane and a center prong extending lengthwise outside of and above the common plane; a first supply line for a first reagent connected in fluid communication with one of the outer prongs; a second supply line for a second reagent connected in fluid communication with the other of the outer prongs; a liquid line connected in fluid communication with the center prong; and a container for housing the first reagent having an inlet connected to the liquid line and an outlet connected to the first supply line for the first reagent, wherein the three parallel prongs of the E-prong connector are arranged to allow connection of the prongs to corresponding receiving holes of a connection point of the hemodialysis system in only a single orientation of the E-prong connector and thus prevent improper connection of the prongs with the connection point.