Process for production of vaccines
AssigneeMerck & Co., Inc.
InventorsWilliam J. McAleer, Raymond E. Spier, Kenneth L. Posch
Life of this patent
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Abstract
A multiplate propagator for producing cells and vaccines having critical geometric properties such as ratio of plate diameter to internal tank diameter results in significantly increased yields at substantially reduced costs.
Claims5
A process for the production of a vaccine wherein the improvement comprises growing a desired virus in a rotating multiplate propagator having a plate diameter to internal tank diameter ratio of from about 0.80 to about 0.90.
A process for the production of a vaccine wherein the improvement comprises growing a desired virus in a rotating multiplate propagator having a distance of from about one-half inch to about three-fourths inch between the edge of the plates and the tank wall and having a plate diameter to internal tank diameter ratio of from about 0.80 to about 0.90.
A process for the production of a vaccine wherein the improvement comprises growing a desired virus in a multiplate propagator having a surface area to volume ratio of from about 1.7 cm..sup.2 /ml. to 2.2 cm..sup.2 /ml and having a plate diameter to internal tank diameter ratio of from about 0.80 to about 0.90.
A process for the production of a vaccine wherein the improvement comprises growing a desired virus in a rotating multiplate propagator having:
- a. a plate diameter to internal tank diameter of from about 0.80 to 0.90;
- b. a distance of from about one-half inch to about three-fourths inch between the edge of the plates and the tank wall;
- and
- c. a surface area to volume ratio of from about 1.7 cm..sup.2 /ml. to 2.2 cm..sup.2 /ml.
Dependencies are inferred from the claim text.