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System for measuring change in fluid flow rate within a line

  • US 6,520,747 B2
  • Filed: 02/04/2002
  • Issued: 02/18/2003
  • Est. Priority Date: 07/01/1998
  • Status: Expired due to Term
First Claim
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1. A fluid management system for dispensing an amount of a first fluid and monitoring a state of flow of the first fluid, the system comprising:

  • a chamber having an inlet and an outlet and a septum separating the first fluid and a second fluid;

    an energy imparter for applying a time varying amount of energy on the second fluid;

    a transducer for measuring a pressure of the second fluid within the chamber and creating a signal of the pressure; and

    a processor for determining change in the first fluid'"'"'s flow rate based on the signal.

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