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System for the preparation of a fluid concentrate intended for medical use

  • US 6,149,294 A
  • Filed: 12/01/1997
  • Issued: 11/21/2000
  • Est. Priority Date: 02/19/1990
  • Status: Expired due to Fees
First Claim
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1. An apparatus for preparing a concentrate solution which may be used as a medical solution, comprising:

  • a liquid supply for supplying a predetermined amount of liquid;

    a mixing container adapted to receive said liquid;

    a plurality of vessels containing powder therein to be partially dissolved in said liquid;

    a flow path including at least one conduit for the flow of liquid from said mixing container through a selected one of said vessels and for the return flow of the liquid and dissolved powder therein to said mixing container;

    a valve assembly for selectively directing the flow of said liquid and said dissolved powder to one of said plurality of vessels until a predetermined amount of said powder has been dissolved, whereupon said valve assembly will direct the flow of said liquid and dissolved powder to a further one of said vessels as said liquid and dissolved powder flow through said flow path until a concentrate solution having a desired concentration is obtained.

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