Surgery – Respiratory method or device – Ozone or ion generation
Patent
1980-07-21
1982-06-01
Michell, Robert W.
Surgery
Respiratory method or device
Ozone or ion generation
128214R, A61M 514
Patent
active
043322476
ABSTRACT:
An administration set including a burette with an air valve communicating with the burette chamber. The air valve comprises a stationary port extending from a top portion of the burette chamber with a fitting closing the port except for a small passageway defined by a top portion of the fitting. A pivotable closure overlies the port and is pivotally connected therewith. The pivotable closure defines an opening for communication with the small passageway when the closure is pivoted to a predetermined open position. The closure opening and the passageway are segregated when the closure is not in the predetermined open position. A filter member is received within the port and directly underlies the small passageway.
REFERENCES:
patent: 1277825 (1918-09-01), Baker
patent: 3398926 (1968-08-01), Scaramucci
patent: 3709254 (1973-01-01), Wright
patent: 3776229 (1973-12-01), McPhee
patent: 3855997 (1974-12-01), Sauer
patent: 3896733 (1975-07-01), Rosenberg
patent: 3976068 (1976-08-01), Lundquist
Boland Gordon P.
Mittleman Herbert
Baxter Travenol Laboratories Inc.
Flattery Paul C.
Gerstman George H.
Kirby, Jr. John P.
Michell Robert W.
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