초록

A stackable disposable filtration-incubation unit for testing the sterility of filterable liquids which can be sealed using internal means and methods for carrying out the sterility tests.

대표청구항 ▼

A disposable filtration and incubation sterility test unit for testing the sterility of filterable liquids which comprises: a transparent container having upper and lower ends, an inlet port at the upper end, an outlet port at the lower end, a cap hingeably connected at the upper end to tightly clos

A disposable filtration and incubation sterility test unit for testing the sterility of filterable liquids which comprises: a transparent container having upper and lower ends, an inlet port at the upper end, an outlet port at the lower end, a cap hingeably connected at the upper end to tightly close the inlet port, a perforated grid having an upper and lower surface positioned within the container proximate its lower end and secured to the walls thereof to ensure that liquid can pass from the inlet port to the outlet port only through the grid, a membrane filter attached to the upper surface of the perforated grid, a funnel-shaped outlet port located at the lower end of the container attached to the lower surface of the grid to assure that liquid can pass from the grid only through the outlet port, means positioned within the container between the outlet port and the grid for sealing said port comprising an inert resilient ball confined within the space between the funnel-shaped outlet port and grid and means for restraining the ball at a position remote from the outlet port until closure of the port is desired, means provided at the lower end of said container permitting vertical stacking of the filtration and incubation sterility test unit comprising a housing surrounding the outlet.