BLOOD PROCESSING SYSTEMS WITH IMPROVED DATA TRANSFER BETWEENSTATIONARY AND ROTATING ELEMENTS

摘要

System transmit a control signal between a rotating element and a stationary element of a blood separation centrifuge (78). An interface control system (234) mounts the element that views the interface on a rotating element of the centrifuge. The interface control system (234) includes a light source (236) and a light detector (244) on a viewing head (238) and a data link (278) for transmitting light intensity signals from the viewing head (238) to an interface control circuit (270) on the stationary frame of the centrifuge (78). The data link (278) includes an intensity control circuit (252) which adjusts the input to the light source (236) and a second light source (254).