| 摘要 |
A tube purging instrument, device has cooperating rollers which can be compressed and/or clamped together upon a flexible tube to compress the tube partially or completely between the rollers and which can then be rolled together along the length of the tube in order to advance the contents of the tube in the direction of movement of the rollers. The rollers are preferably equipped with flanges or rims which fit over an outer diameter of a tube to maintain registration of the rollers upon tube as the rollers travel in Counter-rotation along a length of the tube. |
