| 简介 |
The present invention relates to a method and apparatus for facilitating anaesthesia, particularly in Re-Breather anaesthetic circuits. A problem with Re-Breather circuits is that their dynamic response can be relatively slow. The dynamic response is the response of the circuit to delivering changes of anaesthetic concentration. In current circuits, Fresh Gas containing anaesthetic is delivered into the circuit and may be substantially diluted by the gas already present in the circuit. It is therefore difficult to achieve a rapid increase of anaesthetic concentration for delivery to the patient. In the present invention, an accumulator is placed in the Re-Breather circuit to accumulate Fresh Gas containing anaesthetic as it is introduced into the circuit, adjacent an inhalation conduit to the patient. Fresh Gas containing high concentrations of anaesthetic is therefore immediately available to the patient. |
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