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US 4,640,778 AGranted
Fibrin gel-containing filter
AssigneeNew York Blood Center, Inc.
InventorsBirger Blomback, Masahisa Okada
Life of this patent
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Abstract
There is disclosed a filter comprising fibrin in gel form, the gel having substantially uniform pore sizes, and the filter comprising means for retaining the shape of at least one surface of the gel against deformation when contacted by a flowing medium.
Claims41
A filter comprising fibrin in gel form, said gel having substantially uniform pore sizes, said filter comprising means for retaining the shape of at least the upper surface of said gel against deformation when contacted by a flowing medium, said means for retaining the shape comprising a foraminous sheet member or a foam.
Dependencies are inferred from the claim text.