Systems and Methods for Aseptic Sampling
A product and method for sampling cells from a bioreactor, for the purposes of determine the cell count or to remove a sample and retain sterility of the sample for quality control (OC) assessment. More specifically, a product and a method for sampling of cells during a cell expansion in a bioreactor using vacuum tubes.
1 . A sampling device comprising:
a first conduit comprising a first port and a second port, wherein said first port is configured to be fluidly connected to a bioreactor and wherein said second port is fluidly connected to a venting device;
a plurality of sub-conduits having corresponding sub-ports, wherein each of the plurality of sub-conduits is fluidly connected to the first conduit at respective connector junctions, and wherein each of the sub-ports is fluidly connected to the first conduit and configured to be operatively coupled to a vacuum tube;
a plurality of flow controllers disposed along said first conduit between each of said connector junctions and disposed along each of said sub-conduits between said connector junction and said sub-port;
a plurality of vacuum tubes each configured to be operatively coupled to a respective sub-port of a corresponding sub-conduit.
2 . The sampling device as defined in claim 1 wherein said venting device is a syringe.
3 . The sampling device as defined in claim 1 wherein each of said plurality of flow controllers is a clamp.
4 . The sampling device as defined in claim 1 wherein each sub-port comprises a needle-provided access device and wherein a fluid path is created through the needle of the access device.
5 . The sampling device as defined in claim 1 wherein the vacuum tube is empty.
6 . The sampling device as defined in claim 1 wherein vacuum tube contains a cell viability stain.
7 . The sampling device as defined in claim 6 wherein the cell viability stain is taken from DRAQ5, Hoechst, or propidium iodide.
8 . The sampling device as defined in claim 1 wherein vacuum tube contains single antibodies.
9 . The sampling device as defined in claim 1 wherein vacuum tube contains multiple antibodies.
10 . The sampling device as defined in claim 8 wherein vacuum tube contains anti-CD3, anti-CD4 or anti-CD8.
11 . The sampling device as defined in claim 1 further comprising an air filter operatively coupled to the venting device.
12 . The sampling device as defined in claim 1 wherein said first conduit is a continuous conduit.
13 . A method comprising sampling cells from a bioreactor into a vacuum tube wherein said method comprises:
providing a sampling device as defined in claim 1 wherein said plurality of flow controllers are in a closed position;
aseptically connecting said sampling device to said bioreactor;
creating a closed fluid path from said bioreactor to a sub-port of said sampling device by opening a defined selection of said plurality flow controllers; and,
aseptically connecting said vacuum tube to said sub-port so that said cells to move from the bioreactor into said vacuum tube.
14 . The method as defined in claim 13 wherein each sub-port comprises a needle-provided access device and wherein said fluid path runs through the needle of the access device.
15 . The method as defined in claim 13 wherein said bioreactor is a flexible cell bag.
16 . The method as defined in claim 13 wherein the container is empty.
17 . The method as defined in claim 13 wherein container contains a cell viability stain.
18 . The method as defined in claim 17 wherein the cell viability stain is taken from DRAQS, Hoechst, or propidium iodide.
19 . The method as defined in claim 17 wherein the cells are instantly mixed with the viability stain; removing said container from said bioreactor, and analyzing for viable cell number.
20 . The method as defined in claim 13 wherein container ( 9 ) contains single antibodies.
21 . The method as defined in claim 13 wherein container contains multiple antibodies.
22 . The method as defined in claim 20 wherein container contains anti-CD3, anti-CD4 or anti-CD8.
23 . The method as defined in claim 20 comprising cultivating cells in said bioreactor, sampling cells from said bioreactor into said container provided with an antibody wherein the cells are instantly mixed with the antibody; removing said container from said bioreactor, and analyzing for antigen.