To provide a pumping apparatus and pump set for use to deliver liquid to a patient, and having a system to detect whether or not they are properly loaded.
A feeding set has a conduit for nutrient liquid and a safety interlock device 61 associated with the conduit. The pumping apparatus 1 has a pumping device and a control system for controlling the operation of a pump 23. An electromagnetic radiation source is operatively connected to the control system of the pump for emitting an electromagnetic radiation signal in a direction for striking the safety interlock device 61 of the feeding set. The safety interlock device 61 is adapted to affect the direction of the electromagnetic radiation. An electromagnetic radiation detector is operatively connected to the control system for receiving the electromagnetic radiation signal when the direction of the electromagnetic radiation signal is affected by the safety interlock device 61, and provides an indication to the control system that the feeding set conduit 67 is properly positioned in the feeding pump 1.
WIESNER JOEL D
KNAUPER CHRISTOPHER A
FOURNIE GLENN G
SISK RICKY A
HUDSON JOSEPH A
GAINES ROBERT B
MEIER KEVIN C
HANLON JAMES G
Next Patent: WATER HEATING VESSEL