EP 1309845 A2 20030514 - HYDROGEL BIOSENSOR AND BIOSENSOR-BASED HEALTH ALARM SYSTEM
Title (en)
HYDROGEL BIOSENSOR AND BIOSENSOR-BASED HEALTH ALARM SYSTEM
Title (de)
HYDROGEL-BIOSENSOR UND BIOSENSORGESTÜTZTES GESUNDHEITSALARMSYSTEM
Title (fr)
BIOCAPTEUR HYDROGEL ET SYSTEME D'ALARME SANITAIRE FONDEE SUR CE BIOCAPTEUR
Publication
Application
Priority
- US 0112934 W 20010420
- US 19905700 P 20000422
Abstract (en)
[origin: WO0181890A2] A biosensor (10) has a hydrogel (30) in a rigid and preferably biocompatible enclosure (20). The hydrogel (30) 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 (30), 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 (40), the biosensor (10) 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 (64) powered telemeter (60) operably engaged to the pressure transducer (40) sends a radio data signal to a receiver (66) containing an alarm system operably attached to a computer (62). 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.
IPC 1-7
IPC 8 full level
A61B 5/00 (2006.01); A61B 5/145 (2006.01); G01N 13/04 (2006.01); G01N 33/483 (2006.01); G01N 33/487 (2006.01); G01N 33/53 (2006.01); G01N 33/543 (2006.01); G01N 33/66 (2006.01); G01N 1/02 (2006.01)
CPC (source: EP KR)
A61B 5/14532 (2013.01 - EP); A61B 5/14865 (2013.01 - EP); G01N 13/04 (2013.01 - EP); G01N 33/48792 (2013.01 - EP); G01N 33/53 (2013.01 - KR); G01N 33/5302 (2013.01 - EP); G01N 33/54373 (2013.01 - EP); G01N 33/66 (2013.01 - EP); G01N 2001/021 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0181890 A2 20011101; WO 0181890 A3 20020221; AU 7884001 A 20011107; EP 1309845 A2 20030514; EP 1309845 A4 20051012; JP 2004507283 A 20040311; KR 20030031895 A 20030423
DOCDB simple family (application)
US 0112934 W 20010420; AU 7884001 A 20010420; EP 01957060 A 20010420; JP 2001578926 A 20010420; KR 20027014098 A 20021021