A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
137/1.5
A61M 15/00 (2006.01) A61M 16/00 (2006.01) A61M 16/10 (2006.01)
Patent
CA 1281608
A b s t r a c t 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 dioxyde 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 secundary portion, in which the secundary 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.
557419
Van Dijk Geert
Westerkamp Bart
Fetherstonhaugh & Co.
Physio Bv
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