Membrane with biodegradable polymer
AssigneeRoche Diabetes Care, Inc.
InventorAlexander Steck
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Abstract
The present invention relates to an analyte sensor comprising a substrate, at least one first electrode, at least one second electrode and at least one protective layer covering the at least one second electrode. The present invention further relates to a process for manufacturing the inventive analyte sensor as well as to an analyte sensor system comprising an analyte sensor according to the present invention and an electronics unit. The analyte sensor according to the present invention may mainly be used for conducting analyte measurements in a body fluid of a user.
Claims15
An analyte sensor for determining at least one analyte, the analyte sensor comprising:
- a substrate comprising at least one first conductive material and at least one second conductive material,
- at least one first electrode which is located on the at least one first conductive material,
- at least one second electrode which is located on the at least one second conductive material, the at least one second electrode comprising silver,
- at least one protective layer covering the at least one second electrode fully, wherein the at least one protective layer comprises a mixture of at least one biodegradable polymer and at least one non-biodegradable hydrophobic polymer, wherein the at least one protective layer allows transfer of water and chloride anions through the at least one protective layer but restricts transfer of silver cations and silver chloride through the at least one protective layer.
Dependencies are inferred from the claim text.