| 摘要 |
Anaesthesia apparatus comprising means (2, 3) for connection to a patient, to a gas source (40) for narcosis gas and oxygen gas, to a unit (6) for control of the respiratory process and to a ventilator (7) for respiratory assistance as well as to an absorber (18) for carbon dioxide. A conduit (1) supports connection means (2, 3) at an outer end and, at its inner end (4), is connected to the respiratory control (6), to the ventilator (7) and to the absorber (18). A conduit (35) from the gas source (40) has its orifice close to the patient connection (2, 3). The first said conduit (1) is arranged, between its connections, to form a reservoir for gas exhaled by the patient which is adapted in terms of size to give the patient a contribution of exhaled gas quantified with carbon dioxide during respiration such that the risk of hypocapnia due to a relatively too large contribution of oxygen can be controlled. The gas for which there is no room in the reservoir passes through the absorber (18) and returns to the patient whereby the content of the narcosis gas and oxygen gas in this surplus gas can be used beneficially. <IMAGE> |
