Chemistry: analytical and immunological testing – Including sample preparation – Liberation or purification of sample or separation of...
Patent
1993-03-08
1995-02-28
Housel, James C.
Chemistry: analytical and immunological testing
Including sample preparation
Liberation or purification of sample or separation of...
210787, 210789, 422 72, 422101, 422102, 436 63, 436180, G01N 118
Patent
active
053936744
ABSTRACT:
Constituent layers are harvested from a centrifuged multi-constituent material in an evacuated glass or clear plastic tube which contains a float. When possibly contaminated materials, such as blood, are being tested, the use of an evacuated tube allows the measurements to be made without the technician being exposed to the blood. The tubes are large enough to hold approximately one ml of blood, and are filled with an inert gas at low pressure. The floats are formed with a through bore into which cell bands to be harvested will settle during centrifugation. The cell bands are stabilized by a layer of a flowable material which settles onto the plasma layer during centrifugation and forms a pellicle thereon. The cell layers to be harvested are aspirated from the float bore by way of a hypodermic needle or cannula inserted into the tube and float bore.
REFERENCES:
patent: 3779383 (1973-12-01), Ayers
patent: 3814248 (1974-06-01), Lawhead
patent: 3852194 (1974-12-01), Fine, Jr.
patent: 3862042 (1975-12-01), Ayers
patent: 3882021 (1975-06-01), Ayres
patent: 3891553 (1975-06-01), Ayres
patent: 3894950 (1975-07-01), Ayres et al.
patent: 3894951 (1975-07-01), Ayres
patent: 3897337 (1975-07-01), Ayres
patent: 3897343 (1975-07-01), Ayres
patent: 4027660 (1977-06-01), Wardlaw et al.
patent: 4082085 (1978-04-01), Wardlaw et al.
patent: 4091659 (1978-05-01), Massey III et al.
patent: 4159896 (1979-07-01), Levine et al.
patent: 4853137 (1989-08-01), Ersson
patent: 4861477 (1989-08-01), Kimura
patent: 4867887 (1989-09-01), Smith
patent: 4946660 (1990-08-01), Fiehler
patent: 5086784 (1992-02-01), Levine et al.
patent: 5251474 (1995-10-01), Levine et al.
Levine Robert A.
Wardlaw Stephen C.
Housel James C.
Jones William W.
Ludlow Jan M.
LandOfFree
Constitutent layer harvesting from a centrifuged sample in a tub does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Constitutent layer harvesting from a centrifuged sample in a tub, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constitutent layer harvesting from a centrifuged sample in a tub will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-847955