CELL REMOVAL METHOD, CELL REMOVAL SYSTEM, AND WHITE BLOOD CELL REMOVAL METHOD

摘要

In the removal of white blood cells from blood, the efficiency of white blood cell removal by a filter is improved. Centrifugal force is applied to blood placed in a blood bag by centrifugal separation to form a plurality of separation layers having a concentration gradient of white blood cells. The separation layers are passed through a filter in ascending order of white blood cell concentration to remove the white blood cells from the separation layers. The separation layers from which the white blood cells have been removed are received in a first blood component bag.

主权项

1. A cell removal system that is mounted on a centrifugal separator and removes predetermined cells from a body fluid, comprising:
a body fluid bag that receives a body fluid; a first body fluid component bag that receives a first body fluid component having a relatively high cell concentration in the body fluid; a second body fluid component bag that receives a second body fluid component having a relatively low cell concentration in the body fluid; a first channel that connects the first body fluid component bag and the body fluid bag; a second channel that connects the second body fluid component bag and the body fluid bag; a filter that is provided in the first channel and removes predetermined cells from a body fluid component passing through the channel; a first on-off valve that opens and closes the first channel; and a second on-off valve that opens and closes the second channel, the first channel and the second channel being connected to an end portion of the body fluid bag, the end portion being, when mounted on the centrifugal separator, on the side of a direction of centrifugal force by the centrifugal separator.