Patent ID: 7971753
Filing Date: 2011-07-05
Classification: A61F,A61J,B65D

Abstract:
1. A container with a filter comprising: a bottle having a mouth portion; a plug body placed on the mouth portion and providing a discharging pass for discharging internal liquid kept in the bottle; a filter provided in the discharging pass; said filter has a filtration film constructed to filter out bacteria for preventing bacterial from percolating from downstream side to upstream side in a direction opposite of discharging, and an internal liquid holding member which is made of porous substance having microscopic pores that hold the liquid therein in order to keep said film wet, and which is placed on upstream side of the filtration film; a surface of said internal liquid holding member is in contact with a surface of the filtration film; and said bottle comprises an external layer which is deformable by squeezing and an internal layer bag which is peelable from the external layer bottle, and said liquid is kept in the internal layer bag; the internal layer bag has memory which expands said internal layer bag and generates negative pressure in the interial layer bag so that a pressure difference between the negative pressure and the ambient pressure becomes higher than the filtration resistance, and the negative pressure aspirates liquid that remains in downstream side of the filtration film to upstream side of the filtration film.