LAYERED SENSOR FOR DETERMINING AN ANALYTE CONCENTRATION
First Claim
1. An implantable sensor for determining a concentration of at least one analyte in a body tissue or a body fluid, the implantable sensor having a layered construction comprising at least one insulating carrier substrate and at least two electrodes which are arranged in at least two different layer planes of the implantable sensor, are electrically isolated from one another by the at least one insulating carrier substrate and have electrode areas, the electrode areas facing the medium when the sensor has been implanted, and being in contact directly or via a generally analyte-permeable membrane layer with the body tissue or body fluid over a large area and substantially uniformly, the implantable sensor further comprising at least two electrode contact layers in electrical contact respectively with the at least two electrodes, wherein the at least one insulating carrier substrate has a width, and the at least two electrodes or the at least two electrode contact layers extending over substantially the entire width of the at least one insulating carrier substrate.
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Accused Products
Abstract
An implantable sensor is provide which can be used for determining a concentration of at least one analyte in a medium, in particular a body tissue and/or a body fluid. The implantable sensor has a layered construction with at least one insulating carrier substrate and at least two electrodes which are arranged in at least two different layer planes of the implantable sensor and are electrically isolated from one another by the at least one insulating carrier substrate. The electrodes have electrode areas which face the medium when the sensor has been implanted, and are in contact with the medium over a large area and substantially uniformly, directly or via a generally analyte-permeable membrane layer.
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Citations
27 Claims
- 1. An implantable sensor for determining a concentration of at least one analyte in a body tissue or a body fluid, the implantable sensor having a layered construction comprising at least one insulating carrier substrate and at least two electrodes which are arranged in at least two different layer planes of the implantable sensor, are electrically isolated from one another by the at least one insulating carrier substrate and have electrode areas, the electrode areas facing the medium when the sensor has been implanted, and being in contact directly or via a generally analyte-permeable membrane layer with the body tissue or body fluid over a large area and substantially uniformly, the implantable sensor further comprising at least two electrode contact layers in electrical contact respectively with the at least two electrodes, wherein the at least one insulating carrier substrate has a width, and the at least two electrodes or the at least two electrode contact layers extending over substantially the entire width of the at least one insulating carrier substrate.
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23. A method for producing an implantable sensor for determining an analyte concentration in a body tissue or a body fluid, the method comprising the steps of:
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applying a first metal layer substantially over a first plane of a carrier film and a second metal layer substantially over a second plane of the carrier film, wherein the first and second metal layers comprise first and second electrode contact layers and the first and second planes are spaced apart on the carrier film, the carrier film comprising an insulating material; providing first and second electrodes on the respective first and second electrode contact layers; and cutting the carrier film into a plurality of strips, wherein each strip comprises an implantable sensor. - View Dependent Claims (24, 25, 26, 27)
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Specification