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US 4,715,953 AGranted
Hollow fiber separation device manifold
AssigneeBaxter Travenol Laboratories, Inc.
InventorRonald J. Leonard
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AssigneeBaxter Travenol Laboratories, Inc.
InventorRonald J. Leonard
Estimating the term…
A hollow fiber separation device such as an oxygenator for blood which comprises a core having a bundle of hollow tubular fibers circumferentially wrapped around the core for separation of materials. A housing encloses the bundle and first and second manifold systems respectively provide separated flow through the bundle in contact with exterior surfaces of the hollow fibers and the bores of the hollow fibers in first and second flow paths. A space extends longitudinally through the bundle exposing open ends of the fibers at opposed sides of the space, regions of the bundle are adjacent to the space being potted to prevent leakage around to the fibers. The second manifold system includes an inlet and outlet conduit, each being in flow communication with the space. Partition means in the space isolates fluid flow between the inlet conduit in one of the opposed sides from fluid flow between the outlet conduit in the other of opposed sides.
In a hollow fiber separation device which comprises a core, a bundle of hollow tubular fibers for separation of materials, said fibers being circumferentially wrapped about the longitudinal axis of said core, a housing enclosing said bundle, a first manifold system for permitting fluid flow through said bundle in a first flow path in contact with the exterior surfaces of said hollow fibers, and a second manifold system for permitting fluid flow through the bores of said hollow fibers in a second flow path separated from the first flow path, said second manifold system including a space extending longitudinally through said circumferentially wrapped bundle exposing open ends of said fibers at opposed sides of said space, regions of said bundle adjacent to said space being potted to prevent leakage around said fibers, the improvement comprising, in combination:
In a hollow fiber oxygenator which comprises a core, a bundle of hollow tubular fibers for separation of materials, said fibers being circumferentially wrapped about the longitudinal axis of said core in an essentially helical array, a housing enclosing said bundle, a first manifold system for permitting fluid flow through said bundle in a first flow path in contact with the exterior surfaces of said hollow fibers, and a second manifold system for permitting fluid flow through the bores of said hollow fibers in a second flow path separated from the first flow path, said second manifold system including a space extending longitudinally through said circumferentially wrapped bundle exposing open ends of said fibers at opposed sides of said space, regions of said bundle adjacent to said space being potted to prevent leakage around said fibers, the improvement comprising, in combination:
The method of forming a manifold in a hollow fiber separation device which comprises a core, a bundle of hollow tubular fibers circumferentially wrapped about the longitudinal axis of said core with each individual fiber being wrapped about said core with at least 10 windings which comprises:
Dependencies are inferred from the claim text.