초록 ▼

A proportioning system for preparing hemodialysis or hemofiltration solutions. The apparatus of the system is a specially plumbed tank containing a flexible plastic container which holds solution concentrate. Introduction of pressurized water into the tank outside the bag discharges concentrate and

A proportioning system for preparing hemodialysis or hemofiltration solutions. The apparatus of the system is a specially plumbed tank containing a flexible plastic container which holds solution concentrate. Introduction of pressurized water into the tank outside the bag discharges concentrate and water through separate paths into a mixing chamber at a rate determined by the size ratio of narrow orifices in the respective paths.

대표청구항 ▼

A method for producing solutions of predetermined concentration comprising: (a) filling a rigid tank of predetermined volume having a flexible plastic container therein, said flexible container containing a predetermined volume of solution concentrate, with water to displace remaining air within sai

A method for producing solutions of predetermined concentration comprising: (a) filling a rigid tank of predetermined volume having a flexible plastic container therein, said flexible container containing a predetermined volume of solution concentrate, with water to displace remaining air within said tank; (b) closing said tank to the atmosphere when said tank is full; (c) introducing further water into said tank; (d) simultaneously providing exit paths for water from said tank and concentrated solution from said plastic container as further water is introduced into said tank, collapsing said flexible container inducing concentrated solution flows, said exit paths including narrow orifices of predetermined size such that the relative exit flow rates of water and solution are determined thereby; and (e) merging said water and solution exit paths so as to cause mixing of said water and solution thereby to form a relatively more diluted solution of predetermined concentration.