Oxygen delivery and conserving device

Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas

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Details

12820024, 12820524, 12820714, 12820312, 12820718, A61M 1600

Patent

active

052807800

ABSTRACT:
An apparatus for conserving oxygen delivered to a patient including a flat annular housing with an interior chamber having an outlet and inlet port, with the outlet port affixed to a flow check valve. The interior chamber is divided by a flexible diaphragm with the diaphragm and one wall of the housing defining an oxygen storage reservoir which communicates with the outlet and inlet ports. The inlet port directs oxygen from an oxygen tank into the reservoir, and the outlet port directs oxygen through the check valve to the patient. During inhalation, the patient inhales oxygen from the storage chamber through the check valve, thus collapsing the diaphragm. During exhalation the check valve closes, preventing introduction of potentially infectious exhaled air into the system and allowing oxygen to accumulate within the oxygen storage chamber instead of being wasted and expelled during exhalation.

REFERENCES:
patent: 3005453 (1961-10-01), Wellenstein
patent: 3513843 (1970-05-01), Exler
patent: 3788310 (1974-01-01), Fleischmann
patent: 3848605 (1974-11-01), Harautuneian
patent: 4535767 (1985-08-01), Tiep et al.
patent: 4572177 (1986-02-01), Tiep
patent: 5056515 (1991-10-01), Abel
Direction Sheet for Oxymizer Pendant.TM.-manufactured for Chad Therapeutics, Inc. 9445 De Soto Ave., Chatsworth, Calif. 91311, printed May 1989.

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