| 摘要 |
The invention relates to an impeller pump apparatus for inducing motion of a fluid relative to the apparatus, the apparatus having an impeller, the impeller comprising a hub (10), and a blade (12) supported by the hub, the blade having a proximal end attached to the hub, and a sleeve (14), wherein at least a portion of the impeller being located within the sleeve, the fluid flowing through the sleeve when the impeller rotates. |
