Multi-unit blood processor with rotating valves
View Patent ↗An apparatus for separating at least two discrete volumes of a composite liquid into at least a first component and a second component, comprising a valve design that facilitates loading and unloading of blood bags and associated tubing and bag sets. The valves comprise a rotating head, mounted on a shaft, which assumes a “load” position. The head pivots to an “open” position, which secures the tube in its designated location, but which maintains an open lumen through the tube. When the head is in a “closed” position, blood components cannot flow through the tube. The valve apparatus comprises means for maintaining a constant pressure on the tube and contact with the tube as the tube is melted and sealed.
1. An apparatus for separating at least two discrete volumes of a composite liquid into at least a first component and a second component, the apparatus comprising:
a centrifuge rotor adapted to rotate about a rotation axis,
a plurality of separation cells, each of the plurality of separation cells adapted to receive a separation bag of a set of fluidly interconnected bags, the set comprising at least the separation bag containing a volume of composite liquid, and at least one component bag;
a plurality of cavities, each of the plurality of cavities adapted to receive at least one component bag;
a plurality of valves, each of the plurality of valves being adapted to control fluid flow between parts of the set of interconnected bags, each of the plurality of valves comprising a jaw mounted on a shaft, the jaw being adapted to apply radio frequency energy to an adjacent tube to seal the tube, wherein each of the plurality of valves further comprises a cam mounted on the shaft, the cam guiding the jaw in a translating and rotating motion from a load position to an open position and in a translating motion from the load position to a closed position;
a plurality of springs, wherein each of the plurality of springs is coupled to a shaft of one of the plurality of valves and being adapted to maintain a jaw of the plurality of valves in contact with a tube as the tube is sealed; and
a controller electrically connected to the plurality of valves, the controller controlling a status of the plurality of valves.
2. The apparatus according to claim 1 , wherein the plurality of valves are placed to receive an asymmetrical manifold in a unique orientation.
3. The apparatus according to claim 1 wherein the rotor further comprises a recess shaped to receive an asymmetrical manifold in a unique orientation.
4. The apparatus according to claim 3 wherein the recess is adapted to receive at least three tubes which are coupled to the asymmetrical manifold.
5. The apparatus of claim 3 wherein the recess has an “E” shape.
6. The apparatus of claim 3 wherein the recess has an “F” shape.
7. The apparatus of claim 1 wherein the plurality of valves comprise pinch valves.
8. The apparatus of claim 1 wherein the plurality of valves comprise at least two sets of valves.
9. The apparatus of claim 8 wherein each of the at least two sets of valves is associated with one of the plurality of separation cells.
10. The apparatus of claim 1 wherein the rotor further comprises a rotor shaft.
11. The apparatus of claim 10 further comprising a slip ring array mounted around a lower portion of the rotor shaft, wherein the slip ring array supplies electric power to the plurality of valves.
12. An apparatus for separating at least two discrete volumes of a composite liquid into at least a first component and a second component, the apparatus comprising:
a centrifuge rotor adapted to rotate about a rotation axis;
a plurality of separation cells, each of the plurality of separation cells adapted to receive a separation bag of a set of fluidly interconnected bags, the set comprising at least the separation bag containing a volume of composite liquid, and at least one component bag;
a plurality of cavities, each of the plurality of cavities adapted to receive at least one component bag;
a plurality of valves, each of the plurality of valves being adapted to control fluid flow between parts of the set of interconnected bags, each of the plurality of valves comprising a jaw mounted on a shaft wherein each of the plurality of valves further comprises a cam mounted on the shaft, the cam guiding the jaw in a translating and rotating motion from a load position to an open position and in a translating motion from the load position to a closed position;
a plurality of sensors that detect characteristics of at least one separated component; and
a controller electrically connected to the plurality of valves, the controller controlling the status of the plurality of valves.
13. The apparatus according to claim 12 , wherein the plurality of valves are placed to receive an asymmetrical manifold in a unique orientation.
14. The apparatus according to claim 12 , wherein the rotor further comprises a recess shaped to receive an asymmetrical manifold in a unique orientation.
15. The apparatus according to claim 14 , wherein the recess is adapted to receive at least three tubes which are coupled to the asymmetrical manifold.
16. The apparatus of claim 12 , wherein the plurality of valves comprise pinch valves.
17. The apparatus of claim 12 , wherein the plurality of valves comprise at least two sets of valves.
18. The apparatus of claim 17 , wherein each of the at least two sets of valves is associated with one of the plurality of separation cells.