Abstract: An infusion pump (100) includes a plunger (110) configured to squeeze a section of an infusion tube (150). A proximal valve (120), proximal to the plunger, ascends to allow infusion fluid intake from a reservoir to the infusion tube and descends to inhibit infusion fluid intake from the reservoir to the infusion tube. A distal valve (125), distal to the plunger, ascends to allow infusion fluid flow past the distal valve, and descends to inhibit infusion fluid flow past the distal valve. A controller (141) controls the plunger, proximal valve, and distal valve by initiating descending of the plunger concurrently with or prior to the ascending of the distal valve, such that the descending of the plunger compensates for suction produced by the ascending of the distal valve, thereby reducing backflow of fluid from the subject. Other applications are also described.

Abstract: The present invention includes methods, circuits, devices, assemblies, systems and associated computer executable code for monitoring medical conduits, sensing and measuring parameters of fluids (liquid and/or gas) within medical conduits and/or processing sensed/measured parameters of fluids within medical conduits. The present invention further includes medical infusion devices and/or systems including the monitoring, sensing, measuring and analyzing devices and methods described herein.

Abstract: An infusion pump including a plunger, a proximal valve located proximally to the plunger, a distal valve located distally to the plunger, and a controller configured to trigger the position of the plunger, such that both in its upper position and its lower position, the plunger squeezes a section of an infusion tube, such that opposite sides of an inner surface of the section do not contact one another.

Abstract: The present invention includes methods, circuits, devices, assemblies, systems and associated computer executable code for monitoring medical conduits, sensing and measuring parameters of fluids (liquid and/or gas) within medical conduits and/or processing sensed/measured parameters of fluids within medical conduits. The present invention further includes medical infusion devices and/or systems including the monitoring, sensing, measuring and analyzing devices and methods described herein.