| 摘要 |
PROBLEM TO BE SOLVED: To provide a protective filter for an extracorporeal circulation circuit pressure monitor having a constitution, even if pulsation of the blood occurs in the extracorporeal circulation, reducing a load due to the pressure fluctuation on a hydrophobic filter and exerting a stable performance of a filter membrane without damaging the filter membrane. SOLUTION: This protective filter 1 for the extracorporeal circulation circuit pressure monitor, having a dialysis device side housing 2, an extracorporeal circulation circuit side housing 3, and a hydrophobic filter 4 held between both the housings, which allows passage of a gas but does not allow passage of a liquid, characterized in that a plurality of ribs 25 and 37 capable of supporting the hydrophobic filter 4 are respectively provided in both housings, and a protective member 5 for preventing direct contact of the ribs 37 with the hydrophobic filter 4 is interposed between the ribs 37 provided in the extracorporeal circulation circuit side housing 3 and the hydrophobic filter 4. COPYRIGHT: (C)2008,JPO&INPIT
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