AN APPARATUS FOR PREPARING A CONCENTRATE OF COAGULATION FACTORS, SUCH AS FIBRINOGEN, FROM A BLOOD SAMPLE

摘要

An apparatus for preparing a concentrate of coagulation factors, such as fibrinogen, from a blood sample, comprises a first chamber (14) for collection and separation of said blood sample so as to separate a plasma fraction, and a second chamber (15) for collection of said plasma fraction through a tubing member (22, 30) and a valve (24) and for precipitation of said concentrate. The apparatus comprises furthermore a .removable syringe (36) for receiving the concentrate from the second chamber (15) through a tubing member (32). The first and the second chamber (14, 15) are partially defined by the same integrally formed solid container wall (2) and comprise a common partition. The first chamber (14) is further defined by a piston (4) displaceable both in connection with the blood sample collection and the transfer of said plasma fraction to the second chamber (15) and in connection with returning said plasma fraction to the first chamber (14) upon the precipitation of the concentrate.