| 摘要 |
Blood collection systems include an integral flexible filter to remove leukocytes from blood components. Filter includes first and second flexible sheets (32, 34) comprising a meltable material, a depth filter medium (28) comprising a meltable material, a peripheral seal (36) joining the sheets (32, 34) directly to the filter medium (28) to encapsulate the filter medium (28) between the first and second sheets (32, 34) wherein the seal includes a comingled melted matrix comprising material of the sheets (32, 34) and material of the filter medium (28). |
