Plasmapheresis centrifuge bowl
AssigneeHaemonetics Corporation
InventorTaylor Korytko
Life of this patent
Estimating the term…
Abstract
A plasmapheresis bowl for the separation and collection of plasma includes a core and a feed tube that increase the bowl efficiency and reduce foaming within the plasma. The core may have a cylindrical body and a ledge located within the interior of the core. The ledge extends radially inward from the core and defines, at least partially, a collection chamber within the plasmapheresis bowl. The core also has ribs that extend above the top of core body and create flow paths that allow fluid to enter the interior of the cylindrical body and collection chamber. The feed tube has a flow path extending through it that fluidly connects an inlet port on the plasmapheresis centrifuge. A first skirt member on the feed tube has a smooth angled surface that helps to reduce foaming.
Claims18
A feed tube for a plasmapheresis centrifuge bowl comprising:
- a tubular member extending between a proximal end and a distal end, the tubular member having a flow path extending there through, the flow path configured to fluidly connect an inlet port on the plasmapheresis centrifuge bowl and an interior of the plasmapheresis centrifuge bowl;
- and
- a first skirt member extending radially outward from the tubular member, the first skirt member having a first surface generally perpendicular to the tubular member and an angled surface extending radially outward and distally from the first surface, the entirety of the angled surface being smooth such that the angled surface is free from protrusions.
A plasmapheresis centrifuge bowl comprising:
- an outer body rotatable about a longitudinal axis of the plasmapheresis centrifuge bowl, the outer body having a main body defining an interior cavity, a neck portion extending proximal to the main body, and a shoulder connecting the main body and the neck portion;
- a separation region located within the interior cavity, rotation of the plasmapheresis centrifuge bowl separating whole blood within the separation region into a first blood component and a second blood component;
- an inlet port for introducing whole blood into the plasmapheresis centrifuge bowl;
- a feed tube having:
- a tubular member extending between a proximal end and a distal end, the tubular member having a flow path extending there through, the flow path configured to fluidly connect the inlet port and the interior of the plasmapheresis centrifuge bowl, and
- a first skirt member extending radially outward from the tubular member, the first skirt member having a first surface generally perpendicular to the tubular member and an angled surface extending radially outward and distally from the first surface, the entirety of the angled surface being smooth such that the angled surface is free from protrusions;
- an outlet port for extracting a first blood component out of the plasmapheresis centrifuge bowl;
- and
- a rotary seal fluidly coupling the inlet port and outlet port to the outer body.
Dependencies are inferred from the claim text.