| 摘要 |
The invention relates to body fluid testing to separate cells or other components of body fluid for appropriate testing or analysis. Hitherto, such as blood testing, has required considerable skill and considerable care in blood sample preparation, and in other areas such as the testing for foetal abnormality has predominantly involved invasive techniques, frequently to the discomfort of the mother. The object of the invention is to overcome those disadvantages mentioned above, which objective is met by a means comprising at least one first chamber, a cooperating filter extending across the or each first chamber, at least one second chamber respectively to cooperate with the at least one first chamber, and one or both of said first and second chambers having a connection to vacuum. |
