| 摘要 |
PCT No. PCT/SE91/00435 Sec. 371 Date Dec. 10, 1992 Sec. 102(e) Date Dec. 10, 1992 PCT Filed Jun. 18, 1991 PCT Pub. No. WO91/19526 PCT Pub. Date Dec. 26, 1991.In a method and apparatus for reducing rebreathing of gas from the dead space (i.e., the volume of used gas, which during expiration has filled the airways and is brought back to the alveus at the following inspiration), at least during the final phase of expiration, a flow of used breathing gas is artificially evacuated from the patient through a gas conduit inserted into the patient's airway, the flow rate of evacuated gas being greater than the flow rate of the expiration gas which is being exhaled by the patient at the time. A flow of breathable gas is simultaneously supplied to the patient through gas conduit inserted in the airway, which may be the same conduit as is used for evacuation or a different conduit. |
