Implantable biomedical sensor device, suitable in particular for measuring the concentration of glucose
February 3, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3837339 Detection plate for an identification system Apparatus and method for sensing species, substances and substrates using oxidase Complete glucose monitoring system with an implantable, telemetered sensor module Transparent multi-oxygen sensor array and method of using same Low-potential electrochemical redox sensors High speed digital telemetry system for implantable device Transcutaneous power and signal transmission system and methods for increased signal transmission efficiency Patent #: 5070535 InventorApplicationNo. 012860 filed on 02/03/1993US Classes:600/377, Electrode implanted in body128/903RADIO TELEMETRYExaminersPrimary: Cohen, Lee S.Assistant: Gilbert, Samuel Attorney, Agent or FirmForeign Patent References
International ClassesA61B 005/07A61B 005/00 Foreign Application Priority Data1992-02-05 NLAbstractImplantable biomedical sensor device for measuring in vivo the presence and/or concentration of physiological substances, such as the concentration of glucose, in a human or animal body. A miniaturized electronic responder (1) arranged in a closed housing (2) of biocompatible material in an electromagnetic interrogation field is capable of contactlessly exchanging binary coded information with a transmitter/receiver, and includes electrical connections (4, 5, 6) passed through the wall of the housing, at least a work electrode (10), a counter-electrode (8) and preferably also a reference electrode (9) outside the housing. The work electrode includes a membrane (13) with hollow fibers extending transversely to the surface of the membrane and having internal walls coated with a conductive polymer (15) and in which a redox enzyme (16) is disposed. One end of the hollow fibers is in electrical contact with a processing device (20) which converts the signals supplied by the work electrode in operation to binary signals.Other References
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