B - Operations – Transporting – 04 – B
Patent
B - Operations, Transporting
04
B
341/33, 182/15.2
B04B 5/02 (2006.01) A61M 1/34 (2006.01) A61M 1/36 (2006.01)
Patent
CA 1155098
ROGERS, BERESKIN & PARR C A N A D A ABSTRACT OF THE DISCLOSURE Control apparatus for controlling the operation of apparatus in which a proper mode sequence is required. The control apparatus is disclosed in the environment of a blood fractionation apparatus including a main housing carrying pumps, and a cell housing for receiving a dispo- sable blood fractionation filter membrane cell. The control apparatus includes mode switch means, means for providing a signal representing each mode, means for encoding said mode signals to output a highest priority signal only, a comparator, first programmed memory means for storing proper mode sequence data, means for feeding the encoded mode signal to an input of said first pro- grammed memory means, means for feeding the encoded mode signal to said comparator, means for feeding the memory means output to the comparator, the comparator being operable to compare the encoded mode signal with the memory means output, and means coupled to the output of said com- parator for providing (a) a first signal if there is a first relationship between the encoded mode signal and the memory means output, and (b) a second signal if there is second relationship between the encoded mode signal and the memory means output.
373412
Bilstad Arnold C.
Brown Richard I.
Foley John T.
Baxter Travenol Laboratories Inc.
Bereskin & Parr
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