| 摘要 |
<p>A leucocyte-separating filter is disclosed, which comprises a polyvinyl formal porous body of a three-dimensional network continuous structure having continuous open pores of 5 to 60 mu m in average pore size. Leucocytes contained in a leucocyte suspension can be effectively adsorbed onto the inside surface of pores and collected during the suspension being passed through complicated path of flow composed of the continuous open pores formed in the matrix of the porous body. Since the flow path in the filter is formed of porous matrix, a step of assembling a haemocyte-removing filter is conducted in an extremely simple manner, and scattering of the performance of products is few. In addition, since the porous matrix is of a continuous structure, it is stable, and problems of run-off of foreign matters from the porous body or channeling of flow path during the procedure substantially do not arise.</p> |
