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 comprising
a centrifuge rotor adapted to rotate about a rotation axis,
at least one separation cell, adapted to receive a separation bag of a set of fluidly interconnected bags, said set comprising at least said separation bag containing a volume of composite liquid, and at least one component bag,
a cavity adapted to receive at least said component bag,
a plurality of valves, the valves being adapted to control fluid flow between parts of the set of interconnected bags, at least one of said valves comprising a jaw mounted on a shaft, said jaw being adapted to move from a load position allowing at least one tube to be placed adjacent said valve to an open position over said tube and from said open position to a closed position constricting fluid flow through said tube, and
a controller electrically connected to said valves, said controller controlling the status of said valves, wherein said valves further comprise a cam mounted on said shaft, said cam guiding said jaw in a translating and rotating motion from said load position to said open position and in a translating motion from said load position to said closed position.
2. The apparatus according to claim 1 , wherein said valves are placed to receive an asymmetrical manifold in a unique orientation.
3. The apparatus according to claim 2 wherein said rotor further comprises a recess shaped to receive said manifold in a unique orientation.
4. The apparatus according to claim 3 wherein said recess is adapted to receive at least three tubes which are coupled to said manifold.
5. The apparatus of claim 3 wherein said recess has an “E” shape.
6. The apparatus of claim 3 wherein said recess has an “F” shape.
7. The apparatus according to claim 1 , wherein said jaw is adapted to apply radio frequency energy to an adjacent tube to seal said tube, and further comprising
a spring coupled to said shaft and being adapted to maintain said jaw in contact with said tube as said tube is sealed.
8. The apparatus of claim 7 , wherein said valve further comprises a cam mounted on said shaft, said cam guiding said jaw in a translating and rotating motion from said load position to said open position and in a translating motion from said load position to said closed position.
9. The apparatus according to claim 8 , wherein said valves are placed to receive an asymmetrical manifold in a unique orientation.
10. The apparatus according to claim 9 wherein said rotor further comprises a recess shaped to receive said manifold in a unique orientation.
11. The apparatus according to claim 10 wherein said recess is adapted to receive at least three tubes which are coupled to said manifold.
12. The apparatus of claim 10 wherein said recess has an “E” shape.
13. The apparatus of claim 10 wherein said recess has an “F” shape.