Patent ID: 11925740
Assignee: ASAHI KASEI MEDICAL CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC A  B | IPC A

Claim 0:
1. A blood processing filter comprising:
a container having 2 ports respectively functioning as an inlet for a liquid to be processed and as an outlet for the processed liquid, and
a filtration medium filled in the container,
wherein an airflow resistance of the filtration medium is 55.0 kPa·s/m or more and less than 85.0 kPa·s/m,
the filtration medium comprises a filter material A having an airflow resistance per unit basis weight of 0.01 kPa·s·m/g or more and less than 0.04 kPa·s·m/g and a filter material B having an airflow resistance per unit basis weight of 0.04 kPa·s·m/g or more,
at least a part of the filter material A is disposed on a side closer to the inlet for a liquid to be processed than the filter material B, and
a sum of the airflow resistances of the filter material A that is disposed on the side closer to the inlet for a liquid to be processed than the filter material B is 6.0 kPa·s/m or more.