Blood separation chamber

Imperforate bowl: centrifugal separators – Rotatable bowl – Including flexible – removable lining therein

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494 18, B04B 708

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active

057591474

ABSTRACT:
A blood component separating device comprises a centrifuge bowl adapted for rotation about its axis in a centrifuge. The bowl defines an outer circumferential wall plus an inner circumferential wall, spaced from the outer wall, to define a circumferential slot adapted for receiving blood components. Access tubing is adapted for communication with the slot. Preferably, an elongated, flexible, collapsible inner liner is provided in the slot. Individual access tubing also may communicate with an elongated container interior between the ends of the elongated, collapsible container. Furthermore, a portion of the slot may define the shape of an outwardly extending spiral, to provide an increasing gravitational field upon fluids therein as the fluid moves along the slot.

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The following materials from Baxter International Inc. et al. v. Cobe Laboratories, Inc. et al., Northern District of Illinois, Easter Division, Civil Action Nos. 89 C 9460 and 93 C 3390: (1) Cobe's Response to Baxter's First Set of Requests for Admission served on Aug. 1, 1994; (2) Cobe's Answers to Baxter's Interrogatories Nos. 1 and 2 served on Jun. 29, 1994; and (3) Aminco Celltrifuge brochure, 1975.
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The following materials from Baxter International Inc. et al. v. Cobe Laboratories, Inc. et al., Northern District of Illinois, Eastern Division, Civil Action Nos. 89 C 9460 and 93 C 3390: 1) Cobe's Expert Report for U.S. Patents Nos. 5,217,426 and 5,217,427; (no date). 2) Operator's Manual for the Aminco Celltrifuge; (no date). 3) Article by Ito, et al., entitled "New Flow Through Centrifuge Without Rotating Seals Applied to Plasmapheresis," Science, pp. 999-1000 (1975).
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(1) Cobe's Expert Report for U.S. Patent No. 4,734,089 (Sep. 30, 1994).
(2) Transcript of the Deposition of John E. Witherspoon (Nov. 3, 1994).
(3) Transcript of the Deposition of John F. Witherspoon (Jan. 6, 1995).
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(5) Baxter's Memorandum in Opposition to Cobe's Motion for a Separate Trial on the Issue of Unenforceability of the Patents in-Suit (Jan. 13, 1995).
(6) Cobe's Reply Memorandum in Support of its Motion For Separate Bench Trail on Unenforceability of Baxter's Asserted Patents (Jan. 23, 1995).
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