Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2009-06-29
2011-11-08
Legasse, Jr., Francis M (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C604S067000, C604S141000
Reexamination Certificate
active
08053721
ABSTRACT:
A medical pump including an electromagnetic emitter and detector is provided. The emitter emits electromagnetic radiation of a predetermined wavelength. A pump set that is compatible with the medical pump modifies the emitted electromagnetic radiation when properly installed in the pump. The detector receives electromagnetic radiation, and a filter circuit excludes electromagnetic radiation having a wavelength other than the predetermined wavelength. The pump monitors the filtered signal to determine whether the received electromagnetic radiation corresponds to the emitted electromagnetic radiation as modified by a properly loaded, compatible pump set and determines whether a compatible pump set is properly loaded in the pump as a function thereof.
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Bisch Michael E.
Forrest Jeffrey E.
Price Jeffrey E.
Waldhoff Gary J.
Domingo Elias
Legasse Jr. Francis M
Tyco Healthcare Group LP
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