| 摘要 |
<p>A pressure pump apparatus (10) for fluids in flexible tubing (12), which comprises a pressure member (30) of generally circular periphery adapted for orbital motion about an axis of rotation (32). A sleeve member (34) is positioned about the pressure member (30) and defines channel means (36, 38) for receiving and retaining the flexible tubing (12) in a predetermined position between the pressure member (30) and sleeve member (34), and surrounding the pressure member (30). The sleeve member (34) may be divided into a pair of substantially semi-circular jaws (34a, 34b) attached together at one end in hinged relation, to permit opening and closing of the jaws about the pressure member (30) to facilitate installation of the tubing (12). </p> |
