Sensor identification and integrity check design
AssigneeMedtronic MiniMed, Inc.
InventorsDavid Yueh-hua Choy, Ellis Garai, Melissa Tsang, Anuj M. Patel
Life of this patent
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Abstract
An analyte sensor apparatus including a sensing portion including one or more electrodes including a working electrode and one or more contacts for electrically connecting the sensor portion to control circuitry (e.g., a printed circuit board assembly, PCBA); and a circuit comprising the one or more contacts; wherein the circuit detects an electrical connection between the control circuitry without requiring exposure of the sensing portion to a fluid.
Claims20
An analyte sensor apparatus, comprising:
- a sensing portion including:
- one or more electrodes including a working electrode;
- an analyte sensing layer on the working electrode, wherein the analyte sensing layer detectably alters an electrical current at the working electrode in a presence of an analyte;
- and
- a plurality of contacts for electrically connecting the one or more electrodes to a printed circuit board assembly (PCBA);
- and wherein:
- a circuit comprising one or more of the contacts detects an electrical connection between the one or more of the contacts and the PCBA without requiring exposure of the sensor portion to a fluid;
- and
- the PCBA comprises one or more processors for receiving the electrical current and determining a concentration level of the analyte from the electrical current.
A method of testing an analyte sensor apparatus, comprising:
- providing a sensing portion including:
- one or more electrodes including a working electrode;
- an analyte sensing layer on the working electrode, wherein the analyte sensing layer detectably alters an electrical current at the working electrode in a presence of an analyte;
- and
- a plurality of contacts for electrically connecting the one or more electrodes to a printed circuit board assembly (PCBA);
- and
- detecting an electrical connection using a circuit comprising one or more of the contacts, wherein:
- the circuit detects the electrical connection between the one or more of the contacts and the PCBA without requiring exposure of the sensing portion to a fluid;
- and
- the PCBA comprises one or more processors for receiving the electrical current and determining a concentration level of the analyte from the electrical current.
A method of making an analyte sensor apparatus, comprising:
- providing a sensing portion including:
- one or more electrodes including a working electrode;
- an analyte sensing layer on the working electrode, wherein the analyte sensing layer detectably alters an electrical current at the working electrode in a presence of an analyte;
- and
- a plurality of contacts for electrically connecting the one or more electrodes to a printed circuit board assembly (PCBA);
- and
- providing a circuit comprising one or more of the contacts, wherein:
- the circuit detects an electrical connection between the one or more contacts and the PCBA without requiring exposure of the sensing portion to a fluid;
- and
- the PCBA comprises one or more processors for receiving the electrical current and determining a concentration level of the analyte from the electrical current.
Dependencies are inferred from the claim text.