FILTER WITH OUTGASSING APERTURE AND PHYSIOLOGICAL FLUID COLLECTION BAG Russian patent published in 2010 - IPC A61F5/441 

FIELD: medicine.

SUBSTANCE: filter is provided with an outgassing aperture and contains an adsorbing material in the form of an elongated column covered with a gas-tight and fluid-tight material along its largest part in-between its longitudinal ends; the filter has an inlet aperture and an outlet divided by an effective length of the column. The inlet aperture is completely separated from the environment by a film which is made of a fluid-tight and gas-permeable hydrophobic material, with its surface opposite to the inlet aperture being directly accessible to physiological fluids. The fluid-tight and gas-permeable hydrophobic material contains a laminated nonwoven material and a polypropylene membrane. According to the invention, the filter is suitable for physiological fluid collection bags.

EFFECT: invention allows eliminating contact of the fluid to an adsorbent material.

17 cl, 8 dwg