| 摘要 |
An apparatus for automatic and manual artificial respiration has an artificial respiration bellows (13) in a pressure chamber for automatic artificial respiration and a respiration bag (20) for manual artificial respiration. The apparatus operates either as a "half-closed" system or as a "half-open" system, the changeover from one system to the other being effected by switching a changeover valve (30). During automatic use when operating as a "half-closed" system, the respiratory gas, impelled by the bellows (13), passes through an inhalation branch (43) for inhalation into the lungs (18) and upon exhalation returns via an exhalation valve (22) and the changeover valve (30) to the respiration bellows (13). During manual use when operating as a "half-closed" system, the respiratory gas is passed by pressure on the respiration bag (20) via a bypass line (42) into the lungs (18) and upon exhalation returns via the changeover valve (30) to the respiration bag (20). During both manual and automatic use when operating as a "half-open" system, the respiratory gas flows along the same inhalation path, and, during exhalation, passes via the exhalation valve (22) and the changeover valve (30), now switched over, into a waste gas line (32). The apparatus is used e.g. for anaesthesia. <IMAGE> |
