Closed hemapheresis system and method
AssigneeWilliam F. McLaughlin
InventorsDonald W. Schoendorfer, William F. McLaughlin
Life of this patent
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Abstract
A centrifugal separator system is provided for extracting lighter matter from a liquid suspension. The separator includes a housing having an axis, an inlet port, a lighter matter outlet port and a heavier matter outlet port spaced from the inlet port. A rotatable interior double shell rotor is disposed within the housing. The rotor includes outer and inner shells and defines a centrifugation gap therebetween. The rotor is spaced from the housing by a flow gap. The outer shell includes means providing communication between the centrifugation gap, the inlet port and the heavier outlet port. Means are provided in the double shell rotor for conducting lighter matter from the centrifugation gap to the lighter matter outlet port.
Claims14
A centrifugal separator system for extracting lighter matter from a liquid suspension comprising:
- a housing having and including an inlet port to receive the liquid suspension, a heavier matter outlet port axially spaced from the inlet port and a lighter outlet port;
- a rotatable interior double shell rotor disposed within said housing for rotation about the axis, said rotor including an outer shell and an inner shell and a centrifugation gap between said inner and outer shells, said rotor being spaced from said housing by a flow gap and including means in said outer shell for providing communication between the centrifugation gap and said inlet port and said heavier matter outlet port;
- means within said double shell rotor communicating with said centrifugation gap and said lighter matter outlet port for conducting the lighter matter from the centrifugation gap to said lighter matter outlet port;
- means within said housing, coupled to said rotor, for rotating said rotor within said housing;
- and
- wherein the flow of liquid suspension is relatively unrestricted in the centrifugation gap in comparison to the flow gap.
A continuous flow centrifugal separator comprising:
- a fixed housing disposed about an axis and having an inlet port, an outlet port for heavier matter that is axially spaced from the inlet port and an outlet port for lighter matter;
- and
- a rotor disposed within the housing for rotation about the axis, the rotor having an outer shell and an inner wall spaced radially inward from the outer shell to define therebetween a gap which extends axially between the housing inlet port and the housing heavier matter outlet port, the outer shall having at least one shell inlet port therein to provide communication of fluid from the housing inlet port into the gap, at least one shell heavier material outlet axially spaced from the shell inlet port in a direction toward the housing heavier material outlet port to provide communication from the gap to the housing heavier material outlet port, the rotor including a communication path for lighter material that extends from the gap and radially inwardly from the shell heavier material outlet port to the shell lighter material output port.
Dependencies are inferred from the claim text.