06751491 is referenced by 161 patents.

An implantable chip biosensor for detecting an analyte in vivo in body fluids comprises an analyte-sensitive hydrogel slab chemically configured to vary its displacement volume according to changes in concentration of an analyte, such as glucose, in a patient's body fluid, the slab being disposed in a groove in a support block. The biosensor chip is ‘read’ by an external scanner configured to quantifiably detect changes in the displacement volume of the hydrogel slab. The support block is made of rigid or semi-rigid support material to restrain expansion of the hydrogel in all but one dimension, and the groove has one or more openings covered with a semipermeable membrane to allow contact between the patient's body fluid and the hydrogel. The scanning means may be any type of imaging devices such as an ultrasound scanner, a magnetic resonance imager (MRI), or a computerized tomographic scanner (CT) capable of resolving changes in the slab's dimensions.

Title
Analyte measuring biosensor chip using image scanning system
Application Number
10/54660
Publication Number
6751491 (B2)
Application Date
January 22, 2002
Publication Date
June 15, 2004
Inventor
In Suk Han
11591 S. Terendale La., Salt Lake City
UT, US
Seok Lew
6561 Nod Hill Rd. #32, Salt Lake City
UT, US
Agent
Mallinckrodt & Mallinckrodt
US
Agent
Robert R Mallinckrodt
US
IPC
A61B 5/05
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