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Oscillating positive respiratory pressure device

  • US 9,849,257 B2
  • Filed: 08/18/2014
  • Issued: 12/26/2017
  • Est. Priority Date: 08/22/2013
  • Status: Active Grant
First Claim
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1. A respiratory treatment device comprising:

  • a housing enclosing a chamber;

    a chamber inlet configured to receive a flow of air into the chamber through the chamber inlet;

    a first chamber outlet configured to permit the flow of air to exit the chamber through the first chamber outlet;

    a second chamber outlet configured to permit the flow of air to exit the chamber through the second chamber outlet;

    a vane mounted within the chamber, the vane being configured to rotate in response to the flow of air through the chamber during a single period of exhalation repeatedly between a first position where the flow of air is directed to exit the chamber through the first chamber outlet, and a second position where the flow of air is directed to exit the chamber through the second chamber outlet;

    a blocking member disposed on the vane, the blocking member moveable relative to the chamber inlet during the single period of exhalation repeatedly between a closed position where the flow of air through the chamber inlet is restricted, and an open position where the flow of air through the chamber inlet is less restricted.

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