Electrochemical sensor for determining an analyte concentration
First Claim
1. An electrochemical sensor for the continuous determination of a concentration of at least one analyte in a body tissue or a body fluid, the electrochemical sensor having an isolation element and at least two electrodes, the at least two electrodes comprising a working electrode and at least one of a counter electrode and a reference electrode, wherein at least one of the electrodes is at least partially formed as a wire-shaped electrode having a circumferential electrode surface configured to be exposed to the body tissue or the body fluid and wherein the sensor is configured to be implanted in the body tissue and/or subcutaneously inserted and wherein the sensor further comprises a membrane layer covering the at least two electrodes wherein the membrane layer is biocompatible and at least partially permeable to the at least one analyte;
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Accused Products
Abstract
The invention relates to an electrochemical sensor for the determination of a concentration of at least one analyte in a medium, in particular a body tissue and/or a body fluid, to an apparatus that includes the electrochemical sensor, and to a use of the electrochemical sensor, and finally to a method for producing it. The electrochemical sensor has an isolation element and at least two electrodes. The at least two electrodes comprise at least one working electrode and at least one further electrode, in particular at least one counter electrode and/or at least one reference electrode. The at least two electrodes run parallel to one another and form an electrochemical measuring cell of the electrochemical sensor.
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Citations
31 Claims
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1. An electrochemical sensor for the continuous determination of a concentration of at least one analyte in a body tissue or a body fluid, the electrochemical sensor having an isolation element and at least two electrodes, the at least two electrodes comprising a working electrode and at least one of a counter electrode and a reference electrode, wherein at least one of the electrodes is at least partially formed as a wire-shaped electrode having a circumferential electrode surface configured to be exposed to the body tissue or the body fluid and wherein the sensor is configured to be implanted in the body tissue and/or subcutaneously inserted and wherein the sensor further comprises a membrane layer covering the at least two electrodes wherein the membrane layer is biocompatible and at least partially permeable to the at least one analyte;
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wherein the isolation element comprises a cross-section having a design selected from the group consisting of Y-shaped, cross-shaped, and star-shaped. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An electrochemical sensor for the continuous determination of a concentration of at least one analyte in a body tissue or a body fluid, the electrochemical sensor having an isolation element and at least two electrodes, the at least two electrodes comprising a working electrode and at least one of a counter electrode and a reference electrode, wherein at least one of the electrodes is at least partially formed as a wire-shaped electrode having a circumferential electrode surface configured to be exposed to the body tissue or the body fluid and wherein the sensor is configured to be implanted in the body tissue and/or subcutaneously inserted and wherein the sensor further comprises a membrane layer covering the at least two electrodes wherein the membrane layer is biocompatible and at least partially permeable to the at least one analyte;
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wherein the membrane layer coats the entire circumference of the circumferential electrode surface of each of the at least two electrodes.
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26. An electrochemical sensor for the continuous determination of a concentration of at least one analyte in a body tissue or a body fluid, the electrochemical sensor having an isolation element and at least two electrodes, the at least two electrodes comprising a working electrode and at least one of a counter electrode and a reference electrode, wherein at least one of the electrodes is at least partially formed as a wire-shaped electrode having a circumferential electrode surface configured to be exposed to the body tissue or the body fluid and wherein the sensor is configured to be implanted in the body tissue and/or subcutaneously inserted and wherein the sensor further comprises a membrane layer covering the at least two electrodes wherein the membrane layer is biocompatible and at least partially permeable to the at least one analyte;
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wherein the isolation element and the at least two electrodes are all elongate elements which extend together in parallel with the at least two electrodes being disposed on opposing sides of the isolation element whereby the isolation element is disposed between the at least two electrodes to thereby define an elongate electrode pack wherein each of the at least two electrodes of the electrode pack has an elongate circumferential surface configured to be exposed to the body tissue or the body fluid. - View Dependent Claims (27, 28)
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29. An electrochemical sensor for the continuous determination of a concentration of at least one analyte in a body tissue or a body fluid, the electrochemical sensor having an isolation element and at least two electrodes, the at least two electrodes comprising a working electrode and at least one of a counter electrode and a reference electrode, wherein at least one of the electrodes is at least partially formed as a wire-shaped electrode having a circumferential electrode surface configured to be exposed to the body tissue or the body fluid and wherein the sensor is configured to be implanted in the body tissue and/or subcutaneously inserted and wherein the sensor further comprises a membrane layer covering the at least two electrodes wherein the membrane layer is biocompatible and at least partially permeable to the at least one analyte;
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wherein the at least two electrodes are three elongate electrodes and the isolation element is an elongate element defining a Y-shaped cross section having three webs wherein the three elongate electrodes and the isolation element extend together in parallel with each of the webs of the isolation element being disposed between two of the elongate electrodes to thereby define an elongate electrode pack wherein each of the three electrodes of the electrode pack has an elongate circumferential surface configured to be exposed to the body tissue or the body fluid. - View Dependent Claims (30, 31)
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Specification