Dynamically balanced chamber for centrifugal separation of blood
OwnerMark J. Briertoninventor
Life of this patent
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Abstract
A blood separation chamber for rotation about an axis comprises a low-G wall and a high-G wall extending about the axis in a spaced apart relationship to define between them a separation channel. The separation channel includes axially spaced first and second ends. The first end of the separation channel defines at least one generally arcuate recessed region and at least one radial wall within the recessed region sized and positioned so as to aid in balancing the blood separation chamber during rotation about the axis.
Claims20
A blood separation chamber for rotation about an axis, comprising:
- a low-G wall and a high-G wall extending about the axis in a spaced apart relationship to define between them a separation channel, the separation channel including
- an inlet for flowing blood into the separation channel, and
- at least one outlet for removing a blood component from the separation channel, and
- axially spaced first and second ends, the first end defining at least one generally arcuate recessed region and at least one radial wall within the recessed region sized and positioned so as to aid in balancing the blood separation chamber during rotation about the axis.
A blood separation chamber for rotation about an axis, comprising:
- a low-G wall and a high-G wall extending about the axis in a spaced apart relationship to define between them a separation channel, the separation channel including axially spaced first and second ends, the first end defining at least one generally arcuate recessed region and at least one radial wall within the recessed region;
- a central hub aligned with the axis;
- and
- a rib extending between the central hub and the low-G wall, wherein said radial wall is sized and positioned so as to aid in balancing the blood separation chamber during rotation about the axis.
A blood separation chamber for rotation about an axis, comprising:
- a low-G wall and a high-G wall extending about the axis in a spaced apart relationship to define between them a separation channel, the separation channel including
- an inlet for flowing blood into the separation channel, and
- at least one outlet for removing a blood component from the separation channel, and
- axially spaced first and second ends, the first end defining a plurality of alternating recessed regions and radial walls;
- a central hub aligned with the axis;
- and
- a plurality of ribs extending between the central hub and the low-G wall, wherein
- one of said ribs is substantially angularly aligned with the inlet and/or the outlet,
- another rib is angularly offset from the inlet and the outlet, and
- each rib is positioned generally opposite at least one of said radial walls.
Dependencies are inferred from the claim text.