Patent ID: 7306741
Filing Date: 2007-12-11
Classification: A61M,B04B

Abstract:
1. A flexible centrifuge bag comprising: at least one inlet tube; at least one outlet tube; upper and lower flexible sheets, the sheets having doughnut shaped configurations, inner perimeters and outer perimeters, wherein the upper and lower sheets are superimposed and completely sealed together at their outer perimeters, thereby defining the outer perimeter of the centrifuge bag, and wherein the inner perimeters define a hollow opening centrally positioned relative to the outer perimeter of the centrifuge bag and the inlet and outlet tubes are diametrically opposed sandwiched and sealed between the upper and lower sheets and extend from the hollow opening of the centrifuge bag when the upper and lower sheets are sealed together at their inner perimeters; and a dual lumen tubing having an inlet lumen in fluid communication with the proximal end of the inlet tube and an outlet lumen in fluid communication with the proximal end of the outlet tube; wherein the flexible centrifuge bag is self-balancing, and wherein the inlet tube has a distal end positioned at a first radial distance from a center axis of the centrifuge bag and the outlet tube has a distal end positioned at a second radial distance from the center axis of the centrifuge bag, the first radial distance being greater than the second radial distance.