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Dialysis solution system and mixing tank

  • US 20030043688A1
  • Filed: 10/24/2002
  • Published: 03/06/2003
  • Est. Priority Date: 07/02/2001
  • Status: Active Grant
First Claim
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1. A mixing tank apparatus for mixing dry chemicals with water to form a concentrated hemodialysis solution, comprising:

  • a. a mixing chamber having a generally vertical sidewall extending upward from a bottom wall and circumscribing at least a portion of a cylinder to form a main well, the mixing chamber also having a cavity extending generally horizontally and projecting outward from the vertical sidewall;

    b. a drain connection located at a lowermost portion of the bottom wall; and

    c. a fluid supply nozzle projecting into the mixing chamber and directed at least partially toward the cavity wherein fluid is drawn from the mixing chamber by the drain connection and is returned to the mixing chamber by the fluid supply nozzle and the combination of the drain connection and fluid nozzle create a first rotational pattern and a second rotational pattern in the fluid, with the first pattern having a generally vertically-oriented vortex and the second pattern having a horizontally-oriented vortex in the mixing chamber to accelerate dissolving of the dry chemicals.

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