Flask for blood analysis culture - has triangular cross-section with spaces filled with sterile mixture

摘要

A flask for blood analysis is made so that a culture can grow under optimal conditions while allowing easy inspection. The flask (1) is of triangular cross-section with three equilateral walls and slightly rounded apices. A layer of culture nutrient is fixed to one side of the container, which is partially filled with a culture solution (18) and the remaining spaced filled with a sterile mixture of air and carbonic acid at a pressure of under one atmosphere. The flask is sealed with a stopper (9) covered with a triple screwed cover (10, 11, 12, 14) and the neck of the flask is slightly thicker (8) than the main body.