Remover unit for use in filtration circuit for removing at least leukocyte

A remover unit for use in a circuit for removing at least leukocytes from blood or blood preparations, which comprises:

• a remover comprising a housing having a blood inlet and a blood outlet and a filter interposed between said blood inlet and said blood outlet which allows a stream of said blood or blood preparations to pass through said filter and the removal of at least leukocytes;
• and
• at least one air vent, each having a cap for opening and closing said air vent to ambient atmosphere, said at least one air vent being disposed on the upstream side of said remover via a tube connecting to said blood inlet;
• the downstream side of said remover via a tube connecting to said blood outlet, or being disposed on both the upstream and the downstream sides of said remover via tubes each respectively connecting to said blood inlet and said blood outlet;
• said filter comprising a three-dimensionally reticular, porous member with continuous open pores having a most frequent pore diameter ranging from 1 .mu.m to 5 .mu.m and a ratio of a weight-average pore diameter to a number-average pore diameter ranging from 1.5 to 2.5.

A remover unit for use in a circuit for removing at least leukocytes from blood or blood preparations, which comprises:

• a remover comprising a housing having a blood inlet and a blood outlet and a filter interposed between said blood inlet and said blood outlet which allows a stream of said blood or blood preparations to pass through said filter and the removal of at least leukocytes;
• and
• at least one air vent, each having a cap for opening and closing said air vent to ambient atmosphere, said at least one air vent being disposed on the upstream side of said remover via a tube connecting to said blood inlet;
• the downstream side of said remover via a tube connecting to said blood outlet;
• or being disposed on both the upstream and downstream sides of said remover via tubes each respectively connecting to said blood inlet and said blood outlet;
• said filter comprising a platelet-adsorbing, three-dimensionally reticular, porous member with continuous open pores having a most frequent pore diameter ranging from 1 .mu.m to 5 .mu.m and a ratio of a weight-average pore diameter to a number-average pore diameter ranging from 1.5 to 2.5.

A remover unit for use in a circuit for removing at least leukocytes from blood or blood preparations, which comprises:

• a remover comprising a housing having a blood inlet and a blood outlet and a filter interposed between said blood inlet and said blood outlet which allows a stream of said blood or blood preparations to pass through said filter and the removal of at least leukocytes;
• and
• at least one air vent disposed on said housing, each having a cap for opening and closing said air vent to ambient atmosphere,
• said filter comprising a three-dimensionally reticular, porous member with continuous open pores having a three-dimensionally reticular, continuous texture with continuous open pores having a most frequent pore diameter ranging from 1 .mu.m to 5 .mu.m and having a dust permeability that permits 200 or less dust particles not smaller than 0.3 .mu.m in the atmosphere to pass through said porous member in a period of time in which 100,000 of the same dust particles flow without a filter (blank value).

A remover unit for use in a circuit for removing at least leukocytes from blood or blood preparations, which comprises:

• a remover comprising a housing having a blood inlet and a blood outlet and a filter interposed between said blood inlet and said blood outlet which allows a stream of said blood or blood preparations to pass through said filter and the removal of at least leukocytes;
• and
• at least one air vent disposed on said housing, each having a cap for opening and closing said air vent to ambient atmosphere,
• said filter comprising a three-dimensionally reticular, porous member with continuous open pores having a most frequent pore diameter ranging from 1 .mu.m to 5 .mu.m and a ratio of a weight-average pore diameter to a number-average pore diameter ranging from 1.5 to 2.5.

A remover unit for use in a circuit for removing at least leukocytes from blood or blood preparations, which comprises:

• a remover comprising a housing having a blood inlet and a blood outlet and a filter interposed between said blood inlet and said blood outlet which allows a stream of said blood or blood preparations to pass through said filter and the removal of at least leukocytes;
• and
• at least one air vent disposed on said housing, each having a cap for opening and closing said air vent to ambient atmosphere,
• said filter comprising a platelet-adsorbing, three-dimensionally reticular, porous member with continuous open pores having a most frequent pore diameter ranging from 1 .mu.m to 5 .mu.m and a ratio of a weight-average pore diameter to a number-average pore diameter ranging from 1.5 to 2.5.