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.
Patent No.:
Date of Patent:
Oct. 17, 2000
Filed:
Jul. 21, 1997
James W Winkelman, Brookline, MA (US);
Oren Zinder, Haifa, IL;
Manfred Grumberg, Haifa, IL;
Jacob Schreibman, Alfey-Menashe, IL;
Other;
Abstract
Red cells are separated from plasma or serum of whole blood by arranging an evacuated tube sealed by a self-sealing stopper above and preferably coaxial with a tube containing a blood sample and sealed by a self-sealing stopper. A hollow double ended needle is held by a fixture and is disposed between and coaxial with the tubes and the tubes are placed in the fixture in a vertical position in a centrifuge and rotated about and spaced from an axis parallel to the axis of the tubes and needle. After the red cells are separated from the serum and/or plasma the tubes are pushed toward one another so that the needle penetrates both stoppers and the serum and/or plasma is drawn into the upper tube. The tubes and needle are separated while still being rotated so that the whole blood components are separated as required.