Flow regulating stopcocks and related methods

  • US 8,408,421 B2
  • Filed: 10/29/2008
  • Issued: 04/02/2013
  • Est. Priority Date: 09/16/2008
  • Status: Expired due to Fees
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First Claim
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1. A flow regulating device comprising:

  • a first chamber;

    a first compressible member configured to store energy disposed in the first chamber;

    a stopcock;

    a second chamber disposed inside the stopcock for holding flow material to be dispensed;

    a second compressible member configured to store energy disposed in the second chamber;

    a first chamber/stopcock conduit disposed between the first chamber and the stopcock to provide fluid communication therebetween;

    a first pressure sensor in communication with the first chamber; and

    wherein the second chamber is filled with flow material from first chamber when stopcock is in a first position and the stopcock device only dispenses flow material when the stopcock is in the second position that is not in fluid communication with the first chamber.

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