Sliding flow controller having channel with variable size groove
First Claim
1. In a segment for fluid flow, a sliding flow controller comprising:
- a rigid component having a fluid control region through which fluid flows;
a variable size groove formed in said fluid control region of said rigid component, said variable size groove having a variable cross-sectional area;
an elastomeric membrane overlaying said fluid control region and said variable size groove, said elastomeric membrane and said variable size groove defining a sealed channel for fluid flow; and
a slider having a flow control projection, said flow control projection adapted to travel along said elastomeric membrane and to deform said elastomeric membrane against said fluid control region at said variable size groove thereby controlling fluid flow.
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0 Petitions
Accused Products
Abstract
A sliding flow controller for controlling flow through a pumping segment used in a fluid delivery system. The flow controller includes a slider that travels along a channel defined by an elastomeric membrane and a variable size groove formed in a rigid component. The slider includes a projecting ball that presses the membrane against the groove. At one end the groove has a maximum cross-sectional area for a maximum flow position and at another end, the groove has no cross-sectional area for a flow stop position. The slider and the pumping segment have respective click stops to impart sensory feedback to the operator when manually operated. A ramped thumb indentation is provided on the exterior of the slider to facilitate sliding movement.
58 Citations
22 Claims
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1. In a segment for fluid flow, a sliding flow controller comprising:
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a rigid component having a fluid control region through which fluid flows; a variable size groove formed in said fluid control region of said rigid component, said variable size groove having a variable cross-sectional area; an elastomeric membrane overlaying said fluid control region and said variable size groove, said elastomeric membrane and said variable size groove defining a sealed channel for fluid flow; and a slider having a flow control projection, said flow control projection adapted to travel along said elastomeric membrane and to deform said elastomeric membrane against said fluid control region at said variable size groove thereby controlling fluid flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A flow controller for operation with a pumping segment, the pumping segment having a pumping portion, a fluid regulation portion and a sensing portion, the pumping segment configured to be mounted to a pumping system, the flow controller comprising:
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a variable size groove formed in the fluid regulation portion, said variable size groove having a variable cross-sectional area; an elastomeric membrane overlaying said variable size groove, said elastomeric membrane and said variable size groove defining a sealed channel for fluid flow; and a slider having a flow control projection, said flow control projection adapted to travel along said elastomeric membrane and to deform said elastomeric membrane against said variable size groove thereby controlling fluid flow, the slider being responsive to the configuration of the pumping system to control the fluid flow. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification