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Ventilator unit exhalation contamination control device

  • US 4,653,493 A
  • Filed: 02/08/1985
  • Issued: 03/31/1987
  • Est. Priority Date: 02/08/1985
  • Status: Expired due to Fees
First Claim
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1. An exhalation evacuation device for use with a ventilation unit to remove exhaled gases from a patient through a vacuum source, said device comprising:

  • a housing defining an exhalation inlet connectable to the ventilation unit, a channel extending from said exhalation inlet through said housing to an exhalation outlet connectable to a vacuum source, an atmospheric inlet in gas flow communication with said channel, a filter port in gas flow communication with said channel and providing a filter outlet from said housing separate from said exhalation outlet;

    a check valve mounted at said atmospheric inlet for permitting flow of air into said housing; and

    a bacteria filter mounted at said filter port.

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