Abstract: An inventive electrochemical sensor has a substrate with proximal and distal regions. The proximal region has at least one contact element configured to communicate with a measurement device. A working electrode is located in the distal region of the substrate and includes a conductive trace. A plurality of enzyme fields are provided, each enzyme field having an enzyme configured for providing a reaction with an analyte. The enzyme fields are spaced apart and each enzyme field is at least partially located on the conductive trace. The conductive trace may be provided in the form of a grid. The enzyme fields can be formed such that they extend beyond one or both edges of the trace or such that they cover only a portion of the full width of the trace. Manufacturing tolerances can be improved.

Abstract: A medical device and method of making the medical device are disclosed. The medical device includes a sensor having an interconnect. The interconnect has a first conductive layer, an insulation layer, and a second conductive layer separated from the first conductive layer by the insulation layer. An electrical contact is provided that is electrically connected to the second conductive layer and is contactable from the side of the interconnect that opposes the second conductive layer. The electrical contact is provided free of micro-vias. The medical device also includes an electronics assembly having an electrical connector, the electronics assembly configured to mate with the interconnect to establish an electrical connection between the electrical connector and the first conductive layer via the electrical contact.

Abstract: An inventive electrochemical sensor has a substrate with proximal and distal regions. The proximal region has at least one contact element configured to communicate with a measurement device. A working electrode is located in the distal region of the substrate and includes a conductive trace. A plurality of enzyme fields are provided, each enzyme field having an enzyme configured for providing a reaction with an analyte. The enzyme fields are spaced apart and each enzyme field is at least partially located on the conductive trace. The conductive trace may be provided in the form of a grid. The enzyme fields can be formed such that they extend beyond one or both edges of the trace or such that they cover only a portion of the full width of the trace. Manufacturing tolerances can be improved.

Abstract: A medical device and method of making the medical device are disclosed. The medical device includes a sensor having an interconnect. The interconnect has a first conductive layer, an insulation layer, and a second conductive layer separated from the first conductive layer by the insulation layer. An electrical contact is provided that is electrically connected to the second conductive layer and is contactable from the side of the interconnect that opposes the second conductive layer. The electrical contact is provided free of micro-vias. The medical device also includes an electronics assembly having an electrical connector, the electronics assembly configured to mate with the interconnect to establish an electrical connection between the electrical connector and the first conductive layer via the electrical contact.