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US 2004/0166029 A1Published application
Device for separating components of a fluid sample
AssigneeBecton, Dickinson and Company
InventorsRobert J. Losada, Fu-Chung Lin, Gregory L. Lusardi
Life of this patent
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Abstract
A device for separating heavier and lighter fractions of a fluid sample is provided, the device including a container and a unitary separator located therein, the separator having an overall density between the heavier and light fractions. The separator is capable of moving between the fractions upon centrifugation, and sealing the fractions from one another when centrifugation ends.
Claims24
An article comprising:
- a container comprising a first end, a second end, a sidewall extending from the first end to the second end, the sidewall having inner and outer surfaces;
- a separator located within the container, at least a portion of the separator circumferentially engaging the inner surface of the container;
- wherein the separator is a unitary component comprising at least one feature selected from the group consisting of at least two regions of differing densities and a density gradient.
A method for manufacturing a biological fluid collection container having therein a separator for separating components of a collected fluid sample, comprising the steps of:
- providing the biological fluid collection container;
- placing the separator into the container, wherein the separator is manufactured by a method comprising the step of:
- injecting one or more polymers into a mold to form a unitary component comprising at least one feature selected from the group consisting of at least two regions of differing densities and a density gradient.
Dependencies are inferred from the claim text.