Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1991-01-08
1992-09-15
Burr, Edgar S.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
12820312, 12820326, 12820327, 12820414, A61M 1100
Patent
active
051469154
ABSTRACT:
An anesthetic vaporizer 1 for use particularly with anesthetic agents having a low boiling point comprises an inlet 2 for carrier gas an an outlet 4 for carrier gas and gaseous anesthetic agents. A first passage 6 extends between the inlet 2 and the outlet 4. A flow restrictor 8 is located within the passage 6. A second passage 10 extends between the first passage 6 at a location upstream of the flow restrictor 8 and a regulator 14. The regulator 14 controls the pressure of gaseous anesthetic agent when flowing through a third passage 26 extending from a vaporizing chamber 12 containing anesthetic agent to the first passage 6 at a location downstream of the flow restrictor 8. A flow control valve 28 is located in the third passage 26.
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Burr Edgar S.
Cassett Larry R.
Raciti Eric P.
Rathbun Roger M.
The BOC Group plc
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