Telescoping serum separator and dispenser

A serum dispensing device, comprising

• two containers, mounted one partially within the other for movement between a first position for receiving a sample and a second position for dispensing serum, one of said containers having wall means defining a compartment having opposed ends, one end being open for fluid communication with the other container;
• said other container comprising an end wall and side wall means extending from said end wall and encompassing at least said one open end of said one container;
• said side wall means of said other container having a dispensing aperture extending from the interior to the exterior surface thereof;
• in said first position said end wall of said other container being removably sealed in a substantially airtight relation against said one end of said first container, and said aperture being removably blocked from fluid communication with said compartment of said one container by a portion of said wall means of said one container;
• and means for sealing together said side wall means of said other container and said wall means of said one container during and after movement of said containers to said second position.

A blood serum collection, separation and dispensing device, comprising

• two generally elongated container each having first and second opposed ends, a portion of one of the containers being mounted within the other container for movement between a first position for receiving a sample and a second position for dispensing serum,
• said one container including
• 2. wall means defining a serum collection and separation compartment open at at least one end for fluid communication with the other container, and
• 2. movable phase separator plug means in contact with said wall means transversely across said compartment for maintaining separation of blood phases and for interrupting fluid flow through said one container, said plug means being capable of movement with respect to blood serum in said compartment when a centrifugal force is generated within said one container;
• said other container comprising
• a. walls having interior surfaces dimensioned so as to accommodate said portion of the one container between them, one of said walls being an end wall removably and completely closing off and covering said open end to provide an airtight seal;
• b. a second of said walls of the other container being provided with a dispensing aperture extending from the interior to the exterior surface thereof;
• said containers further including sealing means for providing an airtight seal between the interior surfaces of said other container and the exterior of said one container when said end wall is moved away from said open end, said aperture being located so as to be between said one wall and said sealing means when said one wall is moved away from the open end;
• whereby serum is cofined within said one container when said one wall covers said open end, and flows into said other container and said aperture when said one wall is moved away.