Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1988-02-02
1990-05-29
Burr, Edgar S.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
12820314, 12820418, 12820421, 12820512, A61M 1500
Patent
active
049286838
ABSTRACT:
Respirating apparatus comprising a pump, by means of which respiratory gas may be circulated in a closed line system in which the pressure may be varied in accordance with a certain respirating pattern, said line system being provided with connecting means for a patient and for supplying the various components of the respiratory gas and with means for withdrawing the carbon dioxide exhaled by the patient into the line system, said pump including at least one pump chamber which is separated by a pump membrane into a primary and a secondary portion, in which the secondary portion forms part of or is connected to the line system and the primary portion is connected to a supply of a driving fluid, of which the varying pressure may effect the pumping action of the membrane.
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Van Dijk Geert
Westerkamp Bart
Burr Edgar S.
Lewis Aaron J.
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