| 摘要 |
Respirating apparatus comprising a pump (1,2,3) , by means of which respiratory gas may be circulated in a closed line system (4) in which the pressure may be varied in accordance with a certain respirating pattern, said line system (4) being provided with connecting means (8) for a patient and for supplying the various components of the respiratory gas (10,11,12) and with means (9) for withdrawing the carbon dioxyde exhaled by the patient into the line system (4), said pump including at least one pump chamber (1,2,3), which is separated by a pump membrane (5) into a primary and a secondary portion, in which the secondary portion forms part of or is connected to the line system (4) and the primary portion is connected to a supply of a driving fluid (17), of which the varying pressure may effect the pumping action of the membrane (5). |
