Force sensing assemblies for an infusion pump are provided. A force sensing assembly includes a processor and an occlusion sensor coupled to the processor. The occlusion sensor is positioned opposed to an occluder valve when the platen is closed. The force sensing assembly measures one or more forces exerted on a fluid tube during a pump cycle. Infusion pump assemblies, methods of operating an infusion pump with a force sensing assembly, systems for controlling an infusion pump and an infusion device are also provided.

An infusion pump for detection of a fluid condition in a flexible tubing is provided. The infusion pump includes a memory storing instructions, and a processor configured to execute the instructions to determine a time-decaying parameter associated with a tubing force obtained by a sensor over time, the tubing force characterizing a force-time curve, and determine a fluid pressure value for a fluid in the tube based at least in part on the time-decaying parameter. A machine implemented method for detecting a fluid condition in a flexible tube is also provided.