IP Library › Granted Patent US 12,234,439
Granted Patent B2
US 12,234,439 · App. 18/336,553 · Granted Feb 25, 2025

Filter systems for separating microcarriers from cell culture solutions

Inventors: Jeremy K. Larsen (Providence, UT); Jon Q. Coleman (Pleasant View, UT); David S. Rowley (Nibley, UT)
Assignees: Life Technologies Corporation; HyClone Laboratories, Inc.
C12M29/04B01D29/13B01D29/27B01D35/027B01D61/147B01D63/06C12M23/14C12M23/26C12M25/16C12M33/14C12M47/02
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Quick Facts
Patent No.
US 12,234,439
App. No.
18/336,553
Granted
Feb 25, 2025
Kind
B2
Abstract

A filter assembly for separating microcarriers from a fluid medium includes a collapsible container bounding a sterile compartment adapted to hold a fluid. An inlet port is attached to the container through which fluid flows into the compartment. An outlet port is attached to the container through which fluid flows out of the compartment. A filter is disposed within the compartment, the filter dividing the compartment into an inlet chamber that is fluidly coupled with the inlet port and an outlet chamber that is fluidly coupled with the outlet port, the filter allowing a medium to pass therethrough but preventing microcarriers disposed in the medium from passing therethrough.

Claims (17)

1. A filter assembly for separating microcarriers from a fluid medium, the filter assembly comprising:

a container with a top-end wall, a bottom-end wall, and a side-end wall bounding a compartment adapted to hold a fluid;

an inlet port through which fluid flows into the compartment,

a single outlet port through which fluid flows out of the compartment; and

a filter disposed within the compartment and fluidically separating the inlet and the single outlet, the filter comprising a porous sheet that divides the compartment into an inlet chamber that is fluidly coupled with the inlet port and an outlet chamber that is fluidly coupled with the single outlet port, the filter allowing the fluid medium to pass therethrough to the single outlet port and preventing microcarriers disposed in the fluid medium from passing therethrough;

wherein the filter is spaced away from the side-end wall and is configured to expand upon accumulation of the microcarriers within the filter; and

wherein the filter comprises one of a rigid portion, a semi-rigid portion, or a rigid mounting ring, so as to be suspended from the top-end wall, and such that the filter expands downwardly and outwardly upon the accumulation of the microcarriers within the filter.

2. The filter assembly as recited in claim 1 , wherein the filter extends between the top end wall of the container and the bottom end wall of the container.

3. The filter assembly as recited in claim 1 , further comprising a rigid support housing having a floor with a side wall upstanding therefrom, the floor and the side wall bounding a chamber, the chamber configured to receive the filter assembly.

4. The filter assembly as recited in claim 3 , wherein the container is removably attachable to an upper end of the support housing.

5. The filter assembly as recited in claim 4 , wherein the filter has an inlet surface and an opposing outlet surface.

6. The filter assembly as recited in claim 1 , wherein the inlet port is removably attached to the container.

7. The filter assembly as recited in claim 1 , wherein the filter is resiliently expandable.

8. The filter assembly as recited in claim 1 , wherein the container comprises a collapsible bag.

9. A cell culturing system comprising the filter assembly as recited in claim 1 , further comprising a bioreactor fluidly coupled with the inlet port.

10. The cell culturing system as recited in claim 9 , wherein the single outlet port is separate and distinct from the bioreactor.

11. The filter assembly as recited in claim 1 , wherein upon expansion of the filter, a surface area of the filter increases.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2024
From: LARSEN, JEREMY K.; COLEMAN, JON Q.; ROWLEY, DAVID S.
To: HYCLONE LABORATORIES, INC.
Reel/Frame 066577/0645 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2024
From: HYCLONE LABORATORIES, INC.
To: LIFE TECHNOLOGIES CORPORATION
Reel/Frame 066577/0788 →
Continuity (6)
Continuation 17186553 · Feb 26, 2021
Continuation 16389688 · Apr 19, 2019
Division 15193962 · Jun 27, 2016
Continuation 13449101 · Apr 17, 2012
Provisional Application 61540967 · Sep 29, 2011
Related Publication 20230323268A1 · Oct 12, 2023
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