A magnetically driven micropump for handling small fluid volumes. The micropump includes a first chamber and a second chamber. A flexible membrane being disposed between the first and second chambers. The flexible membrane being magnetically coupled to an actuator for displacing the membrane.

The invention relates to a pumping device for feeding liquid feed to a patient, which can be used and assembled economically. The pumping device has a pumping cartridge and a drive unit. The pumping cartridge provides a pumping chamber and a pumping channel and valve inlet and outlet locations. The drive unit comprises actuators for pumping and opening and closing the valves at the valve inlet and outlet locations and can releasably be connected with the pumping cartridge. While the pumping cartridge is a disposable part, the driving unit is provided for multiple uses for supplying batch of liquid feed to the patient.

A booster box for a standalone feed system. The booster box includes a pump having a pump inlet and a pump outlet. The pump inlet receives a source fluid from a source container when the pump is activated. The booster box includes a manifold block with a manifold inlet in fluid communication with the pump outlet. The booster box includes a digital controller configured to automatically activate the pump when a pressure within the manifold block sensed by a pressure sensor is below a minimum pressure, and automatically deactivate the pump when the pressure within the manifold block sensed reaches a target pressure. The digital controller is configured to deactivate the pump assembly when a predetermined maximum pumping time period elapses before the target pressure is reached.

A diaphragm pump includes a discharge chamber, a diaphragm configured to be actuated by a pulsation pressure, a fuel flow path fluidly coupled with the discharge chamber, and a fuel chamber located on the fuel flow path. The diaphragm includes a diaphragm actuating portion forming a part of the discharge chamber, and configured to suction fuel into the discharge chamber and to discharge the fuel from the discharge chamber in response to being actuated by the pulsation pressure, and a valve actuating portion located in the fuel chamber and configured to selectively open and close the fuel flow path.