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:
Jul. 31, 1990
Filed:
Jan. 15, 1988
Applicant:
Inventor:
Jay S Desai, Closter, NJ (US);
Assignee:
Becton, Dickinson and Company, Franklin Lakes, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L / ; G01N / ;
U.S. Cl.
CPC ...
422 22 ; 422 99 ; 422102 ; 436177 ;
Abstract
A method of sterilization is provided and a sterilized product from the method for blood separation tubes utilizing a density gradient medium comprised of ficoll and sodium diatrizoate alone or in combination with other such mediums by exposing such mediums to radiation sterilization from such sources as Cobalt 60 without any precipitation out of the components of the medium. This is achieved by the addition of a buffer to the gradient medium at a rate which will provide a specific pH level for the medium after exposure.