초록 ▼

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 coup

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.

대표청구항 ▼

1. A pump chamber, comprising:a volumetric container; a flexible membrane comprising at least a portion of a wall of said container in contact with a fluid contained within the container; at least one spacer positioned within said container to contact at least a portion of the flexible membrane in c

1. A pump chamber, comprising:a volumetric container; a flexible membrane comprising at least a portion of a wall of said container in contact with a fluid contained within the container; at least one spacer positioned within said container to contact at least a portion of the flexible membrane in contact with the fluid so as to inhibit contact between the flexible membrane and an internal surface of said container.