06835553 is referenced by 320 patents.

An implantable biosensor for detecting an analyte in vivo in body fluids comprises an analyte-sensitive hydrogel filament chemically configured to vary its displacement volume according to changes in concentration of an analyte, such as glucose, in a patient's body fluid. A photometric displacement transducer placed inside the biosensor is configured to quantifiably detect changes in the displacement volume of the hydrogel filament, such as by detecting the light intensity on a photoreceptor arranged to receive light of varying intensity depending upon the displacement of the hydrogel filament. A battery powered telemeter operably engaged to the photometric displacement transducer sends a radio data signal representing glucose concentration level to a receiver containing an alarm system. The alarm system can 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.

Title
Photometric glucose measurement system using glucose-sensitive hydrogel
Application Number
10/120870
Publication Number
6835553 (B2)
Application Date
April 11, 2002
Publication Date
December 28, 2004
Inventor
Man Hee Han
Salt Lake City
UT, US
Seok Lew
Salt Lake City
UT, US
In Suk Han
Salt Lake City
UT, US
Agent
Mallinckrodt & Mallinckrodt
US
Agent
Robert R Mallinckrodt
US
Assignee
M Biotech
UT, US
IPC
C12G 1/54
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