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Single-use manifolds for automated, aseptic handling of solutions in bioprocessing applications

  • US 9,700,844 B2
  • Filed: 02/19/2013
  • Issued: 07/11/2017
  • Est. Priority Date: 06/14/2002
  • Status: Expired
First Claim
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1. A manifold system for biotechnology uses, comprising:

  • a manifold unit which is pre-sterilized and disposable so as to be adapted for single-time usage, including;

    (a) at least one length of tubing having at least one inlet end portion, at least one outlet end portion, an outside surface, and an inside surface which is sterilized for passage of a biotechnology fluid therethrough,(b) a plurality of single-use containers, each container having an access port, and(c) at least one aseptic connector that operatively connects said length of tubing with each said single-use container;

    a plurality of valves operable to engage said length of tubing, the valves being remotely operable valves;

    a disposable filter positioned along said length of tubing such that the biotechnology fluid can flow therethrough at a location upstream of said outlet and portion;

    at least one pre-sterilized, calibrated and disposable electrical conductivity sensor adapted for single-time usage;

    the electrical conductivity sensor senses the electrical conductivity of the biotechnology fluid within the tubing and has a memory component capable of storing data, the memory component including a sensor-specific temperature offset assigned to that specific sensor during calibration of the sensor, wherein said temperature offset was determined during manufacture employing a calibration solution, including determining the actual temperature (Tref) value of the calibration solution, using the specified pre-calibrated sensor to measure the temperature (Tsen) value of the calibration solution, and mathematically combining said Tref and said Tsen into said sensor specific temperature offset;

    at least one disposable pressure sensor positioned along said length of tubing such that the biotechnology fluid can flow therethrough at a location selected from the group consisting of upstream, downstream, both upstream and downstream of said disposable filter, and upstream of said outlet end portion; and

    a controller which controls operation of said remotely operable valves, said controller having control logic which dictates the timing of opening and closing of said remotely operable valves.

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