Continuous analyte sensor quality measures and related therapy actions for an automated therapy delivery system

A medical device that regulates delivery of medication to a user, the medical device comprising:

• a drive system;
• at least one processor device that regulates operation of the drive system to deliver a fluid medication from the medical device;
• a user interface;
• and
• at least one memory element associated with the at least one processor device, the at least one memory element storing processor-executable instructions configurable to be executed by the at least one processor device to perform a method of controlling operation of the medical device, the method comprising:
• obtaining a current sensor-generated value that is indicative of a physiological characteristic of the user, the current sensor-generated value produced in response to operation of a continuous analyte sensor device;
• receiving or calculating a sensor quality metric that indicates accuracy of the current sensor-generated value, wherein the sensor quality metric is calculated from information generated by or derived from the continuous analyte sensor device;
• adjusting therapy actions of the medical device in response to the calculated sensor quality metric, to configure a quality-specific operating mode of the medical device, wherein adjusting the therapy actions comprises separately regulating basal and bolus deliveries based on the calculated sensor quality metric;
• managing generation of user alerts at the user interface in response to the calculated sensor quality metric;
• and
• regulating delivery of the fluid medication from the medical device, in accordance with the current sensor-generated value and the quality-specific operating mode of the medical device.

A method of assessing operational quality of a continuous analyte sensor device, the method comprising:

• obtaining a current sensor-generated value that is indicative of a physiological characteristic of a user, the current sensor-generated value produced in response to operation of the continuous analyte sensor device;
• calculating a sensor quality metric that indicates accuracy of the current sensor-generated value, wherein the calculating is based on information generated by or derived from the continuous analyte sensor device;
• and
• formatting the sensor quality metric for compatibility with a fluid medication delivery device, such that therapy actions of the fluid medication delivery device are adjusted in response to the calculated sensor quality metric, and such that aggressiveness of fluid medication therapy provided by the fluid medication delivery device is proportional to quality of the current sensor-generated value as indicated by the calculated sensor quality metric, wherein the therapy actions are adjusted such that basal and bolus deliveries are separately regulated based on the calculated sensor quality metric.