Surgery – Respiratory method or device
Patent
1979-10-19
1981-09-29
Recla, Henry J.
Surgery
Respiratory method or device
12820418, 12820524, 12820519, 128910, A61M 1600
Patent
active
042916895
ABSTRACT:
A manifold is described for use with anesthesia breathing circuits and which is adapted to receive exhaust anesthetic gases from the anesthesia breathing circuit for disposal thereof. The manifold is connectible to a vacuum system for such disposal and includes a needle valve which may be set to establish a desired flow of exhaust anesthetic gas to the vacuum system. Because the pressures (either positive or negative) within the manifold will also have an effect on pressures within the anesthesia breathing circuit from which the exhaust anesthetic gas is received, it is necessary to control the pressure inside the manifold within certain predetermined limits. Relief valves are thus provided and which relieve the pressure within the manifold at certain predetermined positive and negative limits. The relief valves are so arranged that both may be opened manually by a common member which is accessible exterior of the manifold and can readily be displaced by personnel. The displacement simultaneously opens both valves to free the same from sticking.
REFERENCES:
patent: 1617711 (1927-02-01), Hennebohle
patent: 1620720 (1927-03-01), Buck
patent: 4180066 (1979-12-01), Milliken et al.
Airco, Inc.
Cassett Larry R.
Rathbun Roger M.
Recla Henry J.
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