DISPOSABLE CENTRIFUGAL BLOOD PROCESSING SYSTEM

摘要

DISPOSABLE CENTRIFUGAL BLOOD PROCESSING SYSTEM Herbert M. Cullis A continuous flow centrifugal processing system for separating whole blood into fractional components includes a centrifugal separator unit having a molded bowl-shaped outer shell dimensioned to fit within a rotatably-driven casing on an associated centrifuge apparatus. A bowl-shaped inner shell disposed within the outer shell forms therewith athin separation channel radially spaced from the axis of rotation wherein fractions are separated from the whole blood under the influence of centrifugal force. A rotating seal carried on the processing chamber between ports in the chamber and the non-rotating portions of the system. The outer shell includes a relatively thin side wall portion which is inwardly biased toward a side wall portion on the inner shell when seated in the casing. A plurality of projections on the side walls limit inward deformation of the outer shell to maintain a very close concentric spacing between the shell members to facilitate rapid separation of blood flowing through the chamber. By reason of the shell members being molded, the processing chamber can be economically produced in large quantities for disposable one-time use.