Claims
- 1. A method for treating a biological semi-fluid comprising
- diluting the biological semi-fluid with a physiologically acceptable diluent; and
- removing leukocytes from the diluted biological semi-fluid by passing the diluted biological semifluid through a filter assembly which removes leukocytes from the biological semi-fluid; and,
- separating a substantial portion of the diluent from the leuococyte depleted biological semi-fluid.
- 2. The method of claim 1 wherein treating a biological semi-fluid comprises treating a red cell containing fluid.
- 3. The method of claim 2 wherein treating a biological semi-fluid comprises treating packed red cells having a high hematocrit.
- 4. The method of claim 3 wherein treating a biological semi-fluid comprises treating a biological semi-fluid having a hematocrit above about 80%.
- 5. The method of claim 1 further comprising removing gas from a treatment apparatus.
- 6. The method of claim 5 wherein removing gas from the treatment apparatus comprises venting the gas through a gas outlet.
- 7. The method of claim 6 wherein removing gas from the treatment apparatus comprises venting gas displaced by diluent.
- 8. The method of claim 5 wherein removing gas from the treatment apparatus comprises priming the leucocyte depletion filter assembly.
- 9. The method of claim 8 wherein removing gas from the treatment apparatus comprises venting gas displaced by diluent.
- 10. The method of claim 1 further comprising recovering the leucocyte depleted diluted biological semi-fluid.
- 11. The method of claim 10 wherein recovering the leucocyte depleted diluted biological semi-fluid includes recovering biological semi-fluid in the filter assembly.
- 12. The method of claim 11 wherein recovering the leucocyte depleted diluted biological semi-fluid comprises opening a gas inlet to allow air to enter the apparatus.
- 13. The method of claim 1 further comprising administering the leukocyte depleted biological semi-fluid.
- 14. A method for treating a high hematocrit biological semi-fluid comprising
- diluting a red cell containing biological semi-fluid with a physiologically acceptable diluent;
- removing leukocytes from the diluted biological semi-fluid by passing the red cell containing biological semi-fluid through a leucocyte depletion filter assembly;
- separating a substantial portion of the diluent from the leucocyte depleted biological semi-fluid.
- 15. The method of claim 14 further comprising priming the leucocyte depletion filter assembly and venting gas from a treatment apparatus.
- 16. The method of claim 14 wherein separating a substantial portion of the diluent comprises removing sufficient diluent so that the biological semi-fluid has a hematocrit above about 80%.
- 17. The method of claim 14 further comprising administering the leukocyte depleted biological semi-fluid.
Parent Case Info
This application is a continuation-in-part of U.S. Ser. No. 07/820,608, filed Jan. 21, 1992, which is a continuation-in-part of U.S. Ser. No. 07/528,160, filed May 24, 1990, now U.S. Pat. No. 5,126,054.
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Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
820608 |
Jan 1992 |
|
Parent |
528160 |
May 1990 |
|