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Blood processing chamber counter-balanced with blood-free liquid

  • US 6,168,561 B1
  • Filed: 08/19/1999
  • Issued: 01/02/2001
  • Est. Priority Date: 07/01/1997
  • Status: Expired due to Fees
First Claim
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1. A blood processing system comprisinga rotating element operated to rotate about an axis, and a processing chamber that extends circumferentially about the axis on the rotating element for common rotation with the rotating element, the processing chamber including a first compartment containing blood for centrifugal separation into components, the processing chamber also including a second compartment circumferentially spaced from the first compartment about the axis and containing a liquid free of blood which circumferentially counter-balances the first compartment during rotation on the rotating element.

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