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:
Dec. 28, 1976
Filed:
Nov. 03, 1975
Fred H Deindoerfer, Los Angeles, CA (US);
Roland Jang, Saratoga, CA (US);
H Theodore Rudow, Atherton, CA (US);
International Diagnostic Technology, Santa Clara, CA (US);
Abstract
A diagnostic reagent holder specifically adapted for the detection of an unknown quantity of a biologically derived sample suitably by radioimmunoassay, fluorometric detection or by spectrophotometry. The holder comprises an elongate shaft with a support surface adjacent one end of the shaft. Diagnostic reagent is covalently attached to a self-supporting film such as a disc and firmly secured to the support. The diagnostic reagent, e.g., antibody, is stirred during incubation in contact with the sample to be detected, e.g., antigen, in solution. In a 'sandwich' technique labelled substance (e.g., fluorochrome-labelled antibody) is reacted with the sample on the film followed by thorough washing. Then, the holder is slid into a novel viewing housing which precisely positions the film at a window for viewing as with a fluorometer. To avoid loss of labelled substance during handling, and especially during positioning in the viewing housing, one or more protective protrusions are provided around the periphery of the support surface.