Implantable sensor employing an auxiliary electrode

Details Implantable sensor employing an auxiliary electrode Implantable sensor employing an auxiliary electrode

A - Human Necessities

61

B

A61B 5/05 (2006.01) A61B 5/00 (2006.01) G01N 27/26 (2006.01) G01N 27/49 (2006.01) G01N 33/66 (2006.01)

Patent

CA 2276069

An implantable sensor (32) comprising a bio-compatible electroconductive case (42) which houses a measuring electrode (34), a reference electrode (36), an auxiliary electrode (38), and an electronic circuit (40) for measuring the response of the measuring electrode where the measuring electrode, reference electrode and auxiliary electrode are not in direct contact with one another is provided. The implantable sensor of the present invention is particularly useful as a glucose sensor, especially when an enzyme-containing membrane is included in the measuring electrode.

L'invention porte sur un détecteur implantable (32) comprenant un boîtier électroconducteur biocompatible (42) abritant une électrode de mesure (34), une électrode de référence (36), une électrode auxiliaire (38) et un circuit électronique (40) mesurant la réponse de l'électrode de mesure, ladite électrode de mesure, l'électrode de référence et l'électrode auxiliaire n'étant pas en contact direct entre elles. Le détecteur implantable de l'invention est particulièrement utile comme glucomètre surtout lorsqu'une membrane contenant des enzymes est intégrée à l'électrode de mesure.

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