Patent ID: 7849853

Claim:
A ventilator circuit for use in administering medication to a patient, the ventilator circuit comprising: a chamber housing defining an interior space and comprising an input end and an output end; a one-way inhalation valve positioned upstream of said interior space, said one-way inhalation valve operative to permit a flow of gases into said interior space of said chamber housing; a first inhalation conduit communicating with said output end of said chamber, said first inhalation conduit comprising an inlet communicating with said output end of said chamber housing and an outlet adapted to transmit medication to the patient, wherein said inlet and outlet are axially aligned with said output end of said holding chamber; a second inhalation conduit communicating with said input end of said chamber housing, wherein said one-way inhalation valve is located in said second inhalation conduit, said second inhalation conduit comprising an oxygen intake line communicating with said one-way inhalation valve, and wherein said one-way inhalation valve permits one-way flow of oxygen from said second inhalation conduit into said interior space of said chamber housing; an exhaust conduit communicating with said first inhalation conduit at a location positioned between said inlet and said outlet of said first inhalation conduit; and a one-way exhaust valve located in said exhaust conduit, said one-way exhaust valve adapted to prevent a backflow of gas from said exhaust conduit into said first inhalation conduit.