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:
Mar. 30, 1999
Filed:
May. 16, 1995
Michael J Malin, Park Ridge, NJ (US);
Phyllis Shapiro, Yorktown Heights, NY (US);
Bayer Corporation, Tarrytown, NY (US);
Abstract
The present invention provides a heretofore unknown use for a aqueous reagent composition that serves as a universal rinse for performing and/or improving a variety of hematological analyses on automated analyzers. The universal rinse reagent comprises a phosphate buffer to maintain the rinse solution pH at from about 7.0 to about 7.6; a nonhemolytic nonionic surfactant, such as a Pluronic.RTM. an alkali metal salt, such as NaCi; antimicrobial and anti-oxidant compounds; and has an osmolality of about 285 to 305 mOsmol/kg. The universal rinse reagent composition is highly suitable for use in the rinse phases or cycles of all types of blood cell analysis methods and processes performed on semi- and fully-automated systems. The invention allows the replacement of mutiple and specific rinse solutions with the disclosed universal rinse to obtain accurate and acceptable results, independent of the types of blood cell analyses that are performed. The universal rinse is most particularly useful for automated systems having intricate hardware and a number of different input and output channels. The universal rinse composition serves to economize, streamline, and simplify the design and operation of such systems.