IP Library › Granted Patent US 7,033,512
Granted Patent B2
US 7,033,512 · App. 10/413,890 · Granted Apr 25, 2006

Fluid separation devices, systems and/or methods using a centrifuge and roller pump

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Quick Facts
Patent No.
US 7,033,512
App. No.
10/413,890
Granted
Apr 25, 2006
Kind
B2
Abstract

A centrifugal fluid separation system is disclosed for centrifugally separating a composite fluid into components thereof. This centrifugal separation system includes at least a centrifugal rotor which has a composite fluid containment area, a fluid flow channel/tubing and at least one separated component collection area defined therein. A composite fluid to be separated is delivered to the fluid containment area where under centrifugal forces the composite fluid is separated into components and then from which a component travels through an outlet channel to a respective separated component fluids flowing therethrough. A centrally disposed pump is also provided to move the separated component(s) to the collection area(s). Optical sensing of the interface of the separated fluid components may be used with a clamp to stop flow. A disposable bag and tubing system is also disclosed for use with reusable rotor devices.

Claims (23)

1. A method for separating a composite fluid into component parts comprising

loading the composite fluid into a composite container;

providing a rotor with a pump race;

placing the composite container with the composite fluid on the rotor;

engaging a central pump mechanism with the pump race on the rotor;

rotating the rotor and the engaged central pump mechanism together to separate the composite fluid in the composite container;

stopping the together rotation of the central pump mechanism and the rotor, and

pumping with the central pump mechanism a separated component part of the composite fluid to a component container after the together rotation of the central pump mechanism and the rotor is stopped.

2. A method according to claim 1 wherein the step of pumping further comprises

providing a fluid channel between the composite container and the component container; and

moving a separated component part from the composite container through the fluid channel to the component container.

3. A method according to claim 2 further comprising collecting the separated component part of the composite fluid.

4. A method according to claim 2 further comprising automatically driving the separated component part through the fluid channel.

5. A method according to claim 2 further comprising automatically shutting off the flow of the separated component part through the fluid channel.

6. The method of claim 5 further comprising generating electricity to power the automatically shutting off step.

7. A method according to claim 2 further comprising

automatically capturing an intermediate phase component in a collection area by clamping the flow through the fluid channel after collection of a separated component part.

8. A method according to claim 1 further comprising

collecting a separated component part of the composite fluid; and

clamping the flow through the fluid channel after said step of collecting a separated component part.

9. The method of claim 1 wherein the stopping step further comprises stopping the rotation of the central pump mechanism so only the rotor rotates.

10. The method of claim 1 wherein the stopping step further comprises

changing the speed of rotation of the central pump mechanism as compared to the speed of rotation of the rotor to prevent the central pump mechanism and rotor from rotating together.