Device for distributing a flow
A flow distribution device for bioprocess systems, comprising: a flow distribution manifold ( 12; 112 ) comprising: at least four fluid connection conduits ( 14 ), wherein each fluid connection conduit ( 14 ) comprises a first end ( 18 ) for fluid connection and an opposite second end ( 20 ), and wherein at least three of the fluid connection conduits comprise a membrane ( 19 a ) and a valve seat ( 19 b ), which membrane ( 19 a ) can be put in at least two different positions in relation to the valve seat ( 19 b ) for allowing or preventing fluid flow between the first end ( 18 ) and the second end ( 20 ) of the fluid connection conduit ( 14 ); and a central common compartment ( 30 ) to which the second ends ( 20 ) of each of the fluid connection conduits ( 14 ) are connected, whereby the first ends ( 18 ) of each of the fluid connection conduits ( 14 ) can be in fluid communication with the central common compartment ( 30 ) and wherein the fluid connection conduits ( 14 ) are entering the central common compartment ( 30 ) from at least three different directions; wherein said flow distribution device ( 10 ) further comprises at least three membrane actuation members ( 41 ) which are provided in connection with one membrane ( 19 a ) of the flow distribution manifold ( 12; 112 ) each, wherein each of said membrane actuation members ( 41 ) is configured for actuating the membrane ( 19 a ) to be in at least two different positions in relation to the valve seat ( 19 b ), wherein a first position of the membrane ( 19 a ) allows flow between the first end ( 18 ) and the second end ( 20 ) of the fluid connection conduit ( 14 ) and a second position of the membrane ( 19 a ) prevents flow between the first end ( 18 ) and the second end ( 20 ) of the fluid connection conduit ( 14 ).
1 . A flow distribution device for bioprocess systems, comprising:
a flow distribution manifold comprising:
at least four fluid connection conduits, wherein each fluid connection conduit comprises a first end for fluid connection and an opposite second end, and wherein at least three of the fluid connection conduits comprise a membrane and a valve seat, which membrane can be put in at least two different positions in relation to the valve seat for allowing or preventing fluid flow between the first end and the second end of the fluid connection conduit; and
a central common compartment to which the second ends of each of the fluid connection conduits are connected, whereby the first ends of each of the fluid connection conduits can be in fluid communication with the central common compartment and wherein the fluid connection conduits are entering the central common compartment from at least three different directions;
wherein said flow distribution device further comprises at least three membrane actuation members which are provided in connection with one membrane of the flow distribution manifold each, wherein each of said membrane actuation members is configured for actuating the membrane to be in at least two different positions in relation to the valve seat, wherein a first position of the membrane allows flow between the first end and the second end of the fluid connection conduit and a second position of the membrane prevents flow between the first end and the second end of the fluid connection conduit;
wherein the flow distribution manifold comprises three parts, a first part comprising the fluid connection conduits, the respective valve seats and the central common compartment, a second part comprising the membranes and a third part comprising connections for connection to the respective membrane actuation members and mating to a respective membrane; and
wherein a distance between the second end of each of the at least four fluid connection conduits and a central point of the central common compartment is substantially the same for each of the at least four fluid connection conduits.
2 . The flow distribution device according to claim 1 , wherein at least five or at least six fluid connection conduits are provided in the flow distribution manifold.
3 . The flow distribution device according to claim 1 , wherein the fluid connection conduits are entering the central common compartment from at least four or at least five different directions.
4 . The flow distribution device according to claim 1 , wherein the second ends of the fluid connection conduits are connected to the central common compartment distributed around an enclosing wall of the central common compartment, which enclosing wall is enclosing an inner room of the central common compartment, wherein each of the fluid connection conduits can be in fluid communication with the inner room of the central common compartment and wherein the fluid connection conduits are entering the enclosing wall of the central common compartment from at least three or at least four or at least five different directions.
5 . The flow distribution device according to claim 1 , wherein distances between the second ends of each of the fluid connection conduits and a central point of the central common compartment will not differ by more than 3 or 2 or 1 times an inner diameter of the fluid connection conduits.
6 . The flow distribution device according to claim 1 , wherein the flow distribution device comprises either the same number of membrane actuation members as the number of fluid connection conduits provided in the flow distribution manifold or one less, wherein one membrane actuation member is provided in connection with each fluid connection conduit or with each fluid connection conduit except one, whereby the flow through either all fluid connection conduits or all except one can be controlled by a membrane actuation member.
7 . The flow distribution device according to claim 1 , wherein said flow distribution manifold is a single-use component.
8 . The flow distribution device according to claim 1 , wherein said membrane actuation members are pressure controlling members.
9 . The flow distribution device according to claim 1 , wherein said membrane actuation members are configured for being controlled by a connected control system, whereby the membrane actuation members can be controlled to actuate the membranes such that the first end of one of the fluid connection conduits can be fluidly connected with the first end of another one of the fluid connection conduits.
10 . The flow distribution device according to claim 1 , wherein each membrane is a double-layered membrane.
11 . A bioprocess separation system comprising a separation device and at least one flow distribution device according to claim 1 connected to an inlet and/or an outlet of the separation device.
12 . The bioprocess separation system according to claim 11 , wherein the flow distribution device is connected to an inlet of the separation device, wherein one fluid connection conduit of the flow distribution device is connected to the inlet of the separation device and at least three fluid connection conduits of the flow distribution device are connected to different fluid sources comprising fluids to be fed to the separation device.
13 . The bioprocess separation system according to claim 11 , wherein a flow distribution device is connected to an outlet of the separation device, wherein one fluid connection conduit of the flow distribution device is connected to the outlet of the separation device and at least three fluid connection conduits of the flow distribution device are connected to different fraction collectors collecting different fractions from the separation device.
14 . The bioprocess separation system according to claim 11 , wherein the bioprocess separation system comprises
a) a reusable part comprising the membrane actuation members of the flow distribution device and at least one pump head and
b) a single-use part comprising a single use flow path comprising the flow distribution manifold of the flow distribution device and optionally the separation device.