Oxygen conserver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 2, 2003
Grant Date -
Jun 20, 2002
app pub date -
Aug 17, 2001
filing date -
Sep 11, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An oxygen conserver having sensing and delivery ports simultaneously connected with a patient by a dual cannula. Inhalation by a patient produces a partial vacuum to move a sensing diaphragm to a venting position and cause a delivery diaphragm to move to an open position for supplying oxygen to the patient through the delivery port. A manually operable control valve enables continuous oxygen flow through the delivery port independently of operation of the sensing diaphragm.
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