Patent ID: 8053721

Claim:
A medical pump for pumping fluid through a pump set loaded therein, said pump set being adapted for modifying electromagnetic radiation transmitted therethrough when properly loaded in the medical pump, said medical pump comprising: an emitter for emitting electromagnetic radiation having a predetermined wavelength; a detector for receiving electromagnetic radiation and providing a detector signal representative of the electromagnetic radiation received by the detector, said electromagnetic radiation received by the detector including the electromagnetic radiation having the predetermined wavelength emitted by the emitter and electromagnetic radiation having at least one wavelength other than the predetermined wavelength; a filter circuit for filtering the detector signal provided by the detector into a portion of the detector signal representative of the electromagnetic radiation having the wavelength other than the predetermined wavelength and into another portion of the detector signal representative of the electromagnetic radiation having the predetermined wavelength, said filter circuit providing an output signal representative of the portion of the filtered detector signal representative of the electromagnetic radiation having the wavelength other than the predetermined wavelength; and a controller for determining that a compatible pump set is properly loaded in the pump when the output signal is below a threshold and when the other portion of the detector signal represents that the electromagnetic radiation having the predetermined wavelength is not detected, said controller being configured to enable the pump for pumping when the compatible pump set is properly loaded in the pump.