| 摘要 |
<p>A sliding flow controller for controlling flow through a pumping segment (10) used in a fluid delivery system. The flow controller includes a slider (18) that travels along a channel defined by an elastomeric membrane (12) and a variable size groove (60) formed in a rigid component. The slider includes a projecting ball (20) that presses the membrane (12) against the groove (60). At one end, the groove (60) has a maximum cross-sectional area for a maximum flow position and at another end, the groove (60) has no cross-sectional area for a flow stop position. The slider and the pumping segment have respective click stops (80, 314) to impart sensory feedback to the operator when manually operated. A ramped thumb indentation (79) is provided on the exterior of the slider to facilitate sliding movement.</p> |
