Surgery – Respiratory method or device – Ozone or ion generation
Patent
1978-07-10
1981-01-20
Michell, Robert W.
Surgery
Respiratory method or device
Ozone or ion generation
137205, 128274, 137193, A61M 100
Patent
active
042456371
ABSTRACT:
The specification discloses a medical suction apparatus including a canister for receiving and containing fluid and a lid for sealably covering the canister. A patient port and a vacuum port extend through the lid, and a vertically slidable overflow plunger is provided for selectively blocking the vacuum port. A plunger guide directs the plunger towards the vacuum port, and a float is attached to the bottom of the plunger. When the fluid within the canister is below a predetermined level, the plunger and the float are supported at their lowermost position. As the fluid level rises, the float causes the plunger to be moved upwardly to close the vacuum port. An outer sleeve downwardly depends from the lid and partially encompasses the float for providing a tortuous path for air and fluid through the vacuum port to prevent direct migration of aerosol droplets, fluid droplets and condensation through the vacuum port.
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Kruter J. L.
Michell Robert W.
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