| 摘要 |
PCT No. PCT/SE91/00082 Sec. 371 Date Aug. 6, 1992 Sec. 102(e) Date Aug. 6, 1992 PCT Filed Feb. 6, 1991 PCT Pub. No. WO91/12043 PCT Pub. Date Aug. 22, 1991.A system for collecting and removing leaking anesthesia or analgesia gas from an anesthesia apparatus in an operation theater or the like includes a vacuum source (1) and an anesthesia mask (5) adapted to be placed onto the face of a patient and connected to the anesthesia apparatus by at least one supply and removing device, through which the patient is supplied with a mixture of anesthesia or analgesia gas and air and through which air-gas mixture exhaled by the patient is removed, and a vacuum line (4) connected to the anesthesia mask for removing leaking gas to the vacuum source. A T-shaped joint (10) is connected in the vacuum line (4) and has one opening connected by a branch line (11)to the supply and removing device for removing exhaled gas-air mixture via the vacuum source. A noise damping or reducing device (18) is arranged in the vacuum line to reduce disturbing noise as far as possible. A flow regulator device (19, 20, 21) is provided for controlling the evacuation capacity according to the demand in order to reduce both noise and cooling effect.
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