摘要 |
A pleated filter in a housing comprises hydrophobic (10) and hydrophilic (11) sheets, preferably laminated together, and is connected between a patient and a ventilator in an open breathing system, with the hydrophobic sheet nearest to the patient. The hydrophobic sheet comprises resin-bonded ceramic fibres and has an alcohol bubble point of more than 710 mm of H2O to capture micro-organisms. The hydrophilic sheet comprises cellulose, may be continuous or slotted and captures moisture from exhaled breath, allowing it to be picked up again by inhaled air. <IMAGE> |
申请人 |
PALL CORPORATION, GLEN COVE, N.Y., US |
发明人 |
GUTMAN, RICHARD GUY, SUSSEX, CHICHESTER, GB;LOWE, GRAHAM DESMOND, HAMPSHIRE, HAYLING ISLAND, GB;PAGE, PETER EDWARD, HAMPSHIRE, HAYLING ISLAND, GB;MORRIS, KEITH STUART, HAMPSHIRE, EMSWORTH, GB |