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:
Jun. 11, 1991
Filed:
Jan. 23, 1989
Shigeru Nagatomo, Saitama, JP;
Mitsutoshi Tanaka, Saitama, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A multi-layer analytical element for analyzing body fluids includes a light transmitting and water impermeable support having provided thereon a fist non-fibrous porous layer, a second non-fibrous porous layer, and a fibrous porous layer in this order, the three porous layers being bonded together in one piece with an adhesive locally applied in such a manner that small through-holes are formed so as not to substantially interfere with uniform penetration of the liquid. At least one of the non-fibrous porous layers contains a reagent composition which undergoes a detectable optical change in the presence of a component to be analyzed, which optical change is detectable in the first non-fibrous porous layer, and wherein the non-fibrous porous layer comprises polysulfone. The analytical element enables dry analyses with improved precision independently of the hematocrit value of samples.