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Ventilator exhalation system

  • US 4,727,871 A
  • Filed: 10/28/1985
  • Issued: 03/01/1988
  • Est. Priority Date: 10/28/1985
  • Status: Expired due to Term
First Claim
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1. An exhalation system for connection in the exhalation path of a ventilator for use in assisting a patient'"'"'s breathing, the system comprising:

  • a housing having a first end and a second end, an inlet at the first end and an outlet at the second end;

    means for connecting the housing inlet to the exhalation side of the breathing circuit of the ventilator;

    a bacteria filter mounted in the housing and having an inlet and an outlet, means for connecting the filter inlet to the housing inlet;

    first passageway means in the housing for connecting the bacteria filter outlet to the housing outlet;

    second passageway means for connecting the housing outlet to a respiration monitoring device;

    first heating means for heating the bacteria filter to heat gas passing through it to a temperature high enough to substantially avoid condensation; and

    second heating means for heating said first passageway means along at least part of its length to a temperature high enough to maintain gas passing through it at a high enough temperature to substantially avoid condensation in said second passageway means.

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