Flexible centrifuge bag and methods of use

Abstract

A flexible, disposable centrifuge bag for receiving and holding a fluid sample, comprising one or more tubes and upper and lower flexible sheets having doughnut shaped configurations. The upper and lower sheets are superimposed and completely sealed together at their outer perimeters to define an outer perimeter of the centrifuge bag. The inner perimeter of the bag defines a central core. The tubes are sandwiched between the upper and lower sheets and extend from the central core of the centrifuge bag. The upper and lower sheets are sealed together at their inner perimeters such that the tubes are sealed between said upper and lower sheets at the inner perimeter. The bag may be used to harvest platelet rich plasma from whole blood in either a batch method or while simultaneously infusing additional aliquots of whole blood into the bag during centrifugation.

1 . A flexible, disposable centrifuge bag for receiving and holding a fluid sample, comprising:
 one or more tubes, and   upper and lower flexible sheets, said sheets having doughnut shaped configurations, inner perimeters defining a central core of said centrifuge bag, and outer perimeters, wherein said upper and lower sheets are superimposed and completely sealed together at their outer perimeters thereby defining the outer perimeter of said centrifuge bag, and wherein said tubes are sandwiched between said upper and lower sheets and extend from the central core of said centrifuge bag, whereby when said upper and lower sheets are sealed together at their inner perimeters said tubes are sealed between said upper and lower sheets are the inner perimeter.   
     
     
         2 .- 100 . (canceled)