| 摘要 |
A filter provided with a degassing vent including an absorbing material in the form of an elongated column ( 28 ) which is surrounded by a gas- and liquid tight material ( 30 ) on the larger part thereof disposed between longitudinal ends thereof, wherein the filter has an input ( 38 ) and an output which are separated by the effective length of the column ( 28 ). The input ( 38 ) is entirely separated from an external medium by a film which is made of a liquid-tight and gas-permeable hydrophobic material and whose face opposite to the input ( 38 ) is directly accessible for the body fluids. The liquid-tight and gas-permeable hydrophobic material ( 32 ) contains a laminated non-woven matter and a polypropylene membrane. The filter is suitable for pockets collecting body fluids.
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