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Centrifuge system utilizing disposable components and automated processing of blood to collect platelet rich plasma

  • US 7,306,555 B2
  • Filed: 09/08/2006
  • Issued: 12/11/2007
  • Est. Priority Date: 06/14/2002
  • Status: Expired due to Term
First Claim
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1. A disposable centrifuge apparatus comprising:

  • a separation chamber consisting essentially of a first chamber section and a second chamber section, separated by a divider element with each chamber section including a cylindrical elongated portion adjacent to the divider element, a collection portion with a side wall that slopes inward toward the central axis of the chamber section to define a reducing circular cross-section along the central axis, a cylindrical nipple attached to the collection portion, and a port providing an inlet and an outlet path for fluid to the chamber section; and

    a tubing assembly including first and second tubing sections attached to the chamber section ports at a first end and a three-way tubing connector connecting second ends of the first and second tubing sections, wherein the tubing assembly is shaped substantially as an arc;

    a third tubing section having a first end and a second end, wherein the first end is attached to the three-way tubing connector;

    a fourth tubing section having a first end and a second end; and

    a tube clamp connecting the second end of the third tubing section and the first end of the fourth tubing section, wherein the clamp comprises a tapered section;

    wherein the first, second and third tubing sections of the tubing assembly form a loop and are in fluid communication with each other and the separation chamber.

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