The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 26, 2006

Filed:

May. 13, 2002
Applicants:

Paul C. Dicesare, Norwalk, CT (US);

Richmond Cohen, Wanaque, NJ (US);

Inventors:

Paul C. DiCesare, Norwalk, CT (US);

Richmond Cohen, Wanaque, NJ (US);

Assignee:

Becton Dickinson And Company, Franklin Lakes, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L 11/00 (2006.01); B01L 3/00 (2006.01); G01N 9/30 (2006.01); B01D 12/00 (2006.01); B01D 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A device and method is provided for separating heavier and lighter fractions of a fluid sample. The device includes a plurality of constituents comprising a container and a composite element in the container. The composite element is a separator comprising at least two components and more particularly an elastic portion and a plug member. A fluid sample is delivered to the container and the device is subjected to centrifugation whereby the centrifugal load causes the elastic portion of the separator to deform so that the separator migrates into the fluid sample and stabilizes between the heavier and lighter fractions of the fluid sample. The elastic portion of the separator will resiliently return to its initial configuration upon termination of the centrifugal load such that the elastic portion sealingly engages the container and separates the heavier and lighter fractions of the fluid sample.


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