Oscillating bioreactor system
A biological production system includes a mixing vessel and an agitation device. The mixing vessel includes an outer housing, an internal mixing structure, and a reaction chamber. The mixing vessel is configured to provide low shear agitation to materials in the reaction chamber in response to force from the agitation device.
1 . A mixing vessel, comprising:
a rigid outer housing formed of a single unitary material and comprising:
a bottom portion including a closed bottom end;
a top portion opposite the bottom portion and including a cylindrical neck defining an opening configured to be sealed with a closure; and
a middle portion including a cylindrical wall integrally formed with, and extending between, the bottom portion and the top portion;
wherein the rigid outer housing tapers within at least a portion of the top portion such that a diameter of the middle portion is greater than a diameter of the top portion;
a reaction chamber within the rigid outer housing;
wherein the mixing vessel is configured to provide low shear agitation to materials contained within the reaction chamber in response to an externally applied force; and
an internal mixing structure comprising:
a first raised surface; and
a second raised surface;
wherein the internal mixing structure completely traverses the circumference of the cylindrical wall between the top portion and the bottom portion;
wherein the first and second raised surfaces are uniformly distributed around a circumference of the cylindrical wall;
wherein each of the first and second raised surfaces is integrally formed with, and extends from, the cylindrical wall into the reaction chamber;
wherein each of the first and second raised surfaces has a first end portion proximate the top portion, a second end portion proximate the bottom portion, and a middle portion extending between the first end portion and the second end portion; and
wherein each respective first end portion is axially spaced apart from each respective second end portion.
2 . The mixing vessel of claim 1 ,
wherein the respective first and second end portions of each of the first and second raised surfaces extend horizontally along the circumference of the cylindrical wall; and
wherein each respective middle portion of each of the first and second raised surfaces extends along the cylindrical wall and has a pitch angle of between 15 degrees and 70 degrees relative to the closed bottom end.
3 . The mixing vessel of claim 2 ,
wherein the respective first and second end portions of each of the first and second raised surfaces extend from the respective middle portion in opposite directions.
4 . The mixing vessel of claim 1 , further comprising:
a handle having a tubular hollow body extending from the rigid outer housing, the tubular hollow body comprising a first open end and a second open end;
wherein each of the first and second open ends of the tubular hollow body are in fluid communication with the reaction chamber; and
wherein the second open end is spaced apart from the first open end along the rigid outer housing.
5 . The mixing vessel of claim 4 ,
wherein at least a portion of the tubular hollow body extends externally relative to the rigid outer housing.
6 . The mixing vessel of claim 4 ,
wherein the first open end of the tubular hollow body extends in a plane that is substantially parallel to an axial extension of the rigid outer housing; and
wherein the second open end of the tubular hollow body extends in a plane that is substantially perpendicular to the axial extension of the rigid outer housing.
7 . The mixing vessel of claim 1 , further comprising:
a notch integrally formed with, and extending from, the cylindrical wall into the reaction chamber.
8 . The mixing vessel of claim 1 , further comprising:
a notch integrally formed with, and extending from, the bottom portion of the rigid outer housing into the reaction chamber.
9 . The mixing vessel of claim 1 ,
wherein each of the first and second raised surfaces extends from 360 degrees to 540 degrees around a circumference of the cylindrical wall.
10 . The mixing vessel of claim 1 ,
wherein a diameter of the cylindrical wall is greater than a diameter of the neck.
11 . The mixing vessel of claim 1 ,
wherein the diameter of the middle portion is greater than a diameter of the bottom portion.
12 . The mixing vessel of claim 1 , further comprising:
cells in a liquid medium located within the reaction chamber.
13 . A biological production system, comprising:
a mixing vessel, comprising:
a rigid outer housing formed of a single unitary material and comprising:
a bottom portion including a closed bottom end;
a top portion opposite the bottom portion and including a cylindrical neck defining an opening configured to be sealed with a closure; and
a middle portion including a cylindrical wall integrally formed with, and extending between, the bottom portion and the top portion;
wherein the rigid outer housing tapers within at least a portion of the top portion such that a diameter of the middle portion is greater than a diameter of the top portion;
a reaction chamber within the rigid outer housing;
wherein the mixing vessel is configured to provide low shear agitation to materials contained within the reaction chamber in response to an externally applied force; and
an internal mixing structure comprising:
a first raised surface; and
a second raised surface;
wherein the internal mixing structure completely traverses the circumference of the cylindrical wall between the top portion and the bottom portion;
wherein the first and second raised surfaces are uniformly distributed around a circumference of the cylindrical wall;
wherein each of the first and second raised surfaces is integrally formed with, and extends from, the cylindrical wall into the reaction chamber;
wherein each of the first and second raised surfaces has a first end portion proximate the top portion, a second end portion proximate the bottom portion, and a middle portion extending between the first end portion and the second end portion; and
wherein each respective first end portion is axially spaced apart from each respective second end portion;
a closure configured to seal the opening; and
an agitation device;
wherein the mixing vessel is configured to provide low shear agitation to materials contained within the reaction chamber in response to an externally applied force from the agitation device.
14 . The biological production system of claim 13 ,
wherein the mixing vessel further comprises cells in a liquid medium located within the reaction chamber.
15 . The biological production system of claim 13 ,
wherein the mixing vessel further comprises a notch extending from the closed bottom end axially into the reaction chamber.
16 . The biological production system of claim 15 ,
wherein the notch facilitates engagement of the mixing vessel with the agitation device; and
wherein the agitation device is a turntable.
17 . The biological production system of claim 13 ,
wherein the respective first and second end portions of each of the first and second raised surfaces of the mixing vessel extend horizontally along the circumference of the cylindrical wall; and
wherein each respective middle portion of each of the first and second raised surfaces extends along the cylindrical wall and has a pitch angle of between 15 degrees and 70 degrees relative to the closed bottom end.
18 . The biological production system of claim 13 ,
wherein the mixing vessel further comprises a handle having a tubular hollow body extending from the rigid outer housing, the tubular hollow body comprising a first open end and a second open end;
wherein each of the first and second open ends of the tubular hollow body are in fluid communication with the reaction chamber; and
wherein the second open end is spaced apart from the first open end along the rigid outer housing.
19 . A method of mixing cells, the method comprising:
providing a mixing vessel comprising:
a rigid outer housing formed of a single unitary material and comprising:
a bottom portion including a closed bottom end;
a top portion opposite the bottom portion and including a cylindrical neck defining an opening configured to be sealed with a closure; and
a middle portion including a cylindrical wall integrally formed with, and extending between, the bottom portion and the top portion;
wherein the rigid outer housing tapers within at least a portion of the top portion such that a diameter of the middle portion is greater than a diameter of the top portion;
a reaction chamber within the rigid outer housing;
wherein the mixing vessel is configured to provide low shear agitation to materials contained within the reaction chamber in response to an externally applied force; and
an internal mixing structure comprising:
a first raised surface; and
a second raised surface;
wherein the internal mixing structure completely traverses the circumference of the cylindrical wall between the top portion and the bottom portion;
wherein the first and second raised surfaces are uniformly distributed around a circumference of the cylindrical wall;
wherein each of the first and second raised surfaces is integrally formed with, and extends from, the cylindrical wall into the reaction chamber;
wherein each of the first and second raised surfaces has a first end portion proximate the top portion, a second end portion proximate the bottom portion, and a middle portion extending between the first end portion and the second end portion; and
wherein each respective first end portion is axially spaced apart from each respective second end portion;
depositing cells in a liquid medium into the reaction chamber; and
agitating the mixing vessel using an agitation device.
20 . The method of mixing cells of claim 19 ,
wherein the respective first and second end portions of each of the first and second raised surfaces of the mixing vessel extend horizontally along the circumference of the cylindrical wall; and
wherein each respective middle portion of each of the first and second raised surfaces extends along the cylindrical wall and has a pitch angle of between 15 degrees and 70 degrees relative to the closed bottom end.