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, 2001
Filed:
May. 11, 1999
In Suk Han, Salt Lake City, UT (US);
You Han Bae, Salt Lake City, UT (US);
Jules J. Magda, Salt Lake City, UT (US);
Seong Gi Baek, Woodbury, MN (US);
M-Biotech, Inc., Salt Lake City, UT (US);
Abstract
A biosensor (,) has a pH-sensitive polymeric hydrogel (,) in a rigid and preferably biocompatible enclosure (,). The hydrogel (,) includes an immobilized oxidoreductase enzyme such as glucose oxidase. The oxidoreductase enzyme catalyzes a chemical reaction consuming an organic molecule and producing a byproduct. The hydrogel (,) changes its osmotic pressure in proportion to the concentration of a byproduct. By measuring the change in osmotic pressure with a pressure transducer (,), the biosensor (,) is able to accurately measure the concentration of the organic molecule without the problem of interference encountered by prior art biosensors. A battery (,) powered telemeter (,) operably engaged to the pressure transducer (,) sends a radio data signal to a receiver (,) operably attached to a computer (,).