Fluid-flow controlling device and apparatus employing same

Details Fluid-flow controlling device and apparatus employing same Fluid-flow controlling device and apparatus employing same

A - Human Necessities

61

M

128/106, 137/34

A61M 1/00 (2006.01)

Patent

CA 1284073

ABSTRACT A non-mechanical valve and/or filter device which is suitable for use in an apparatus for aspirating body fluids and which comprises a water insoluble, water-absorbent material which, upon contact with water, becomes substan- tially impervious to flow through it of gas and liquid in the wetted regions thereof, the preferred form of said device being a porous rigid structure of sintered particles of poly- ethylene and said water-absorbent material.

513780

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