| 摘要 |
A method and apparatus for conveying fluids includes tubing (12) and a tube clearing sleeve (16) surrounding the tubing. The sleeve has a slick inner surface (18) with a coefficient of friction less than that of the outer surface (12) of the tubing. The sleeve is compressed between the fingers to compress the tubing and the compressed sleeve is advanced along the tubing to displace contents in tubing. |
