Abstract: An occluder detection system is disclosed. At least one occluder element moves according to a cam motion to apply a periodic compression to a flexible infusion line. A portion of the occluder element is configured to emit or modify an energy or magnetic field. A sensor is configured to measure the energy being emitted or modified by the section of the occluder element. A processor causes the at least one occluder element to move according to the cam motion to move a fluid within the flexible infusion line by periodically compressing the flexible infusion line, measures the energy of the energy source via the sensor, obtains a current cam state associated with the cam motion at a time corresponding to the measured energy, and determines, based on the measured energy and the current cam state, a state of the occluder element. The processor may issue an alarm on a fault condition.

Abstract: A device for holding a T-shaped tool having a head and a handle on either the upper or lower leg to (1) provide complete freedom of movement of hands and feet while carrying the tool and (2) permit the user to attach and remove the tool from the device with the same hand employed to use the tool.