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Exhalation valve assembly with integral flow sensor

  • US 9,987,457 B2
  • Filed: 11/06/2015
  • Issued: 06/05/2018
  • Est. Priority Date: 12/01/2009
  • Status: Active Grant
First Claim
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1. An exhalation assembly removably and directly attached to an exhalation valve module attached to a ventilation system, the exhalation assembly comprising:

  • a filter body containing filter media and having a filter inlet port and a filter outlet port, wherein the filter body is removably and directly attachable to the exhalation valve module, wherein the filter body, when attached to the exhalation valve module, filters all gas delivered to the exhalation valve module prior to the gas entering an inlet port of the exhalation valve module; and

    a condensate trap including a trap body attached to the filter body, the condensate trap receiving the gas delivered to the exhalation assembly via a trap inlet port extending through a side of the filter body and connectable to an expiratory limb prior to delivery of the gas to the filter body,wherein the filter body when attached to the condensate trap covers an opening of the trap body to enclose the condensate trap and position the filter inlet port over a portion of the opening.

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