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Pressure/flow control valve and system using same

  • US 20040211422A1
  • Filed: 04/26/2004
  • Published: 10/28/2004
  • Est. Priority Date: 04/28/2003
  • Status: Active Grant
First Claim
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1. A fluid delivery system comprising:

  • (a) a pressure generating system adapted to generate a flow of gas at a pressure level;

    (b) a patient circuit having a first end coupled to the pressure generating system and a second end adapted to be coupled to an airway of a patient; and

    (c) a valve operatively associated with the patient circuit to control one of a pressure and a flow of gas in the patient circuit, wherein the valve comprises;

    (1) a first valve member, (2) a second valve member associated with the first valve member and moveable relative thereto, wherein the first valve member and the second valve member cooperate to define a valve opening having a size that varies with a relative position between the first valve member and the second valve member, (3) a first magnet operatively coupled to the first valve member, and (4) a second magnet operatively coupled to the second member and magnetically coupled to the first magnet.

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