Plural collector centrifuge bowl for blood processing
AssigneeHaemonetics Corporation
InventorEtienne Pages
Life of this patent
Estimating the term…
Abstract
A centrifuge bowl for separating whole blood into less dense and more dense components and for collecting both less dense and more dense components without stopping bowl rotation. The fluid pathway from an inlet port to a separation chamber comprises an inlet tube and an introduction passageway. The fluid pathway from the separation chamber to an outlet port comprises a collection passageway. The introduction and collection passageways are nonrotatable. The more dense blood components can be extracted from the bowl during rotation by applying suction at the inlet port or pressure at the outlet port.
Claims20
A blood processing centrifuge bowl for separating whole blood into more dense and less dense components comprising:
- (a) a bowl body rotatable about a longitudinal axis and having:
- (i) an upper wall radially extending from said axis and having an aperture therethrough;
- (ii) a lower wall radially extending from said axis;
- and
- (iii) a side wall joining the upper and lower walls;
- (b) a nonrotatabLe assembly comprising an inlet port, an outlet port, and an inlet tube extending longitudinally from the inlet port;
- (c) a rotary seal assembly joining the nonrotatable assembly and the bowl body such that the inlet tube extends into the bowl body through the aperture;
- (d) a hollow core, within and joined to the bowl body so as to facilitate rotation therewith, the core having a side wall and being coaxial to the longitudinal axis of the bowl body;
- (e) a separation chamber defined by the side wall of the bowl body and the side wall of the core;
- (f) a collection passageway disposed above the separation chamber, extending radially from the longitudinal axis and fluidly coupling the separation chamber to the outlet port;
- (g) an introduction passageway disposed below the separation chamber, extending radially from the longitudinal axis and fluidly coupling the separation chamber to the inlet tube;
- and
- (h) means for preventing the introduction passageway from rotating with the bowl body.
Dependencies are inferred from the claim text.