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. 21, 1986
Filed:
Feb. 27, 1984
Robert Rosenstein, Ellicott City, MD (US);
Kim P Aspden, Reisterstown, MD (US);
Peter Stopa, Timonium, MD (US);
Becton Dickinson and Company, Franklin Lakes, NJ (US);
Abstract
The presence of Group A Streptococcus in a biological specimen is determined from the presence of Streptococcus A antigen. A biological specimen is collected with an applicator having a plastic stick with a rayon swab. The swab is placed in an extraction reagent containing enzymes produced by the bacterium Streptomyces albus, wherein the enzymes release the antigen from the fiber. An aliquot of the extraction medium is mixed with an indicator reagent containing an antibody reactive with the antigen. The occurrence or non-occurrence of an antibody-antigen reaction is noted which indicates the presence or absence of Group A Streptococcus in the biological specimen.