Patent ID: 11944435
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC A  B  G | IPC A  B  G

Claim 0:
1. A method for stabilizing analytes in blood samples, and for delayed extraction of blood samples from dried blood spots resulting in near neat-level blood samples for use in tests in human and veterinary applications, said method comprising steps of:
obtaining a blood sample from a subject, placing said blood sample in a device for holding said blood sample;
placing a test tube elevator in a sealable centrifuge tube and a buffer solution in a sealable centrifuge tube, wherein said test tube elevator includes a tubular portion vertically extended along a height of said sealable centrifuge tube and a planar portion perpendicular to said tubular portion and radially extended from said tubular portion toward an inner surface of said sealable centrifuge tube, wherein said planar portion is configured to divide said sealable centrifuge tube into an upper portion and a lower portion, and wherein said planar portion includes a plurality of holes for passing liquid between said lower and upper portions;
obtaining at least one strip of absorbent paper containing said blood sample from a dried blood holding device and placing said at least one strip of absorbent paper in said sealable centrifuge tube on top of said test tube elevator, wherein said at least one strip of absorbent paper is not in contact with a bottom of said sealable centrifuge tube;
incubating said at least one strip of absorbent paper in said buffer solution inside by holding said sealable centrifuge tube flipped upside-down; and
centrifuging said sealable tube while directing a centrifuge force toward a bottom of said sealable centrifuge tube to push said buffer solution toward the bottom of said sealable centrifuge tube, while said at least one strip of absorbent paper remains held by said test tube elevator close to a top of said sealable centrifuge tube.