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US 2015/0027957 A1Published application
Collection Tubes Apparatus, Systems, and Methods
AssigneeThe Regents of the University of California
InventorJane F. Emerson
Life of this patent
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AssigneeThe Regents of the University of California
InventorJane F. Emerson
Estimating the term…
Methods of producing collection tubes are presented. The methods include providing a separator substance that can rapidly polymerize in a short time to a desired hardness and disposing the separator substance within the lumen of the tube. The separator substance is formulated to have a density between an average density of a serum fraction of whole blood and a cell-containing fraction of whole blood, and to be flowable with whole blood. Upon centrifugation of a tube having blood, the separator substance forms a barrier between the whole blood fractions. The tube and barrier maintain stability of one or more analyte levels, including potassium and glucose, within 10% of their initial values before centrifugation for at least four days.
A sample collection tube, comprising:
A method of separating a liquid sample into a first fraction and a second fraction using a collection tube and a separator substance, comprising:
The method claim of 17, wherein the step of forming the solid crosslinked composition takes no more than 5 minutes.
Dependencies are inferred from the claim text.