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Oscillating positive expiratory pressure device

  • US 9,358,417 B2
  • Filed: 06/06/2012
  • Issued: 06/07/2016
  • Est. Priority Date: 06/06/2011
  • Status: Active Grant
First Claim
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1. A respiratory treatment device comprising:

  • a housing enclosing at least one chamber;

    a chamber inlet configured to receive exhaled air into the at least one chamber;

    at least one chamber outlet configured to permit exhaled air to exit the at least one chamber;

    an exhalation flow path defined between the chamber inlet and the at least one chamber outlet;

    a restrictor member positioned in the exhalation flow path, the restrictor member moveable between a closed position, where a flow of exhaled air along the exhalation flow path is restricted, and an open position, where the flow of exhaled air along the exhalation flow path is less restricted; and

    ,a vane in fluid communication with the exhalation flow path, the vane operatively connected to the restrictor member and configured to reciprocate between a first position and a second position in response to a flow of exhaled air along the exhalation flow path;

    wherein the restrictor member and the vane are axially offset along a common axis of rotation.

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