Pump chamber having at least one spacer for inhibiting the pumping of a gas
First Claim
1. A pumping device, comprising:
- a pumping cartridge; and
a pump chamber disposed therein;
the pump chamber comprising a wall of said pump chamber, a movable surface comprising at least a portion of the wall, at least one spacer that is configured and positioned within said pump chamber to effect inhibition of gas from being pumped through the pump chamber, and wherein the pumping cartridge is constructed and configured to be coupled to and removable from a reusable component including a pump drive system for operating the pump chamber.
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Accused Products
Abstract
Pump chambers are disclosed that include at least one spacer element therein to prevent any gas in the pump chamber from being pumped from the pump chamber during pumping. In some embodiments, the pump chambers are included in removable pumping cartridges that are constructed and configured for coupling with reusable pump drives. Some embodiments of pump chambers including spacer elements therein comprise a substantially rigid component forming a wall of the pump chamber with a flexible or movable membrane disposed on the wall to form the chamber. Spacer elements in such pump chambers are, in some embodiments, attached to a wall of the substantially rigid component so as to prevent the movable/flexible membrane from contacting the wall during pumping.
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Citations
13 Claims
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1. A pumping device, comprising:
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a pumping cartridge; and
a pump chamber disposed therein;
the pump chamber comprisinga wall of said pump chamber, a movable surface comprising at least a portion of the wall, at least one spacer that is configured and positioned within said pump chamber to effect inhibition of gas from being pumped through the pump chamber, and wherein the pumping cartridge is constructed and configured to be coupled to and removable from a reusable component including a pump drive system for operating the pump chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A pump chamber, comprising:
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a wall of said pump chamber;
a flexible membrane disposed over at least a portion of the wall;
at least one spacer that is configured and positioned within said pump chamber such that it can assist air to rise in the pump chamber.
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13. A pump chamber, comprising:
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a wall of said pump chamber;
a movable surface comprising at least a portion of the wall;
at least one spacer that is configured and positioned within said pump chamber to effect inhibition of gas from being pumped through the pump chamber;
an inlet line; and
an outlet line, the inlet line being connected to the pump chamber at or near an uppermost portion of the pump chamber and the outlet line being connected to the pump chamber at or near a lowermost portion of the pump chamber during operation of the pump chamber.
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Specification