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:
Feb. 04, 2003
Filed:
Apr. 20, 2001
In Suk Han, Sandy, UT (US);
Jules John Magda, Salt Lake City, UT (US);
Seok Lew Lew, Salt Lake City, UT (US);
Young San Jean, Seoul, KR;
M-Biotech, Inc., Salt Lake City, UT (US);
Abstract
A biosensor ( ) has a hydrogel ( ) in a rigid and preferably biocompatible enclosure ( ). The hydrogel ( ) includes an immobilized analyte binding molecule (ABM) and an immobilized analyte. The immobilized analyte competitively binds with free analyte to the ABM, thus changing the number of crosslinks in the hydrogel ( ), which changes hydrogel swelling tendency (and thus the osmotic pressure) in its confined space in proportion to the concentration of free analyte concentration. By measuring the change in hydrogel pressure with a pressure transducer ( ), the biosensor ( ) is able to accurately measure the concentration of the free analyte molecule without the problem of oxygen limitations and interference encountered by prior art biosensors. A battery ( ) powered telemeter ( ) operably engaged to the pressure transducer ( ) sends a radio data signal to a receiver ( ) containing an alarm system operably attached to a computer ( ). Furthermore, an alarm system utilizes such a sensor to automatically notify a person that the analyte level is outside desired predetermined parameters, and/or to automatically inject an agent to counteract the adverse analyte levels.