| 摘要 |
PCT No. PCT/AU95/00674 Sec. 371 Date Apr. 10, 1997 Sec. 102(e) Date Apr. 10, 1997 PCT Filed Oct. 11, 1995 PCT Pub. No. WO96/11031 PCT Pub. Date Apr. 18, 1996A method and apparatus for withdrawing fluid from a wound comprising providing a passage between the wound and a collection container with a valve therebetween to control flow of fluid from the passage to the container. Cyclically establishing in the passage a level of vacuum at a selected value higher than the level of vacuum in the container to thereby draw fluid from the wound while the valve is closed to collect the fluid in the passage. The valve is opened in response to the level of vacuum in the passage falling below the select value, as a result of the buildup of fluid therein, to permit discharge of fluid from the passage into the container. As a result of the discharge of fluid, the selected level of vacuum in the passage is reestablished. |
