US Patent 9549324 Coexistence of multiple radios in a medical device

A computer-implemented diabetes management system is provided that supports enhanced security between a diabetes care manager in data communication with a medical device. The diabetes care manager includes: a first application that operates to request access to a first security role supported by the medical device, where the first security role is associated with a first set of commands for accessing data on the medical device that are defined as a private extension of the communication protocol; and a second application that operates to request access to a second security role supported by the medical device, where the second security role is associated with a second set of commands for accessing data on the medical device that are defined as a private extension of the communication protocol. The second set of commands has one or more commands that are mutually exclusive from the first set of commands.