Hub device for a portable medical device

A hub device that enables wireless communication between portable medical devices and an external device, where the hub device comprises:

• a radio transceiver device that receives portable medical device data from one or more of the portable medical devices, where the radio transceiver device transmits received portable medical device data to the external device;
• an energy storage unit that provides power to the radio transceiver device;
• and
• an energy harvesting circuit that harvests radio frequency energy to charge the energy storage unit,
• wherein the energy storage unit stores the harvested radio frequency energy;
• wherein the hub device is configured to communicate with the one or more portable medical devices using a protocol that is specific to each portable medical device and enables a unique portable medical device identifier to be included in the portable medical device data,
• wherein the hub device further comprises processing circuitry configured to establish a communications link with one of the one or more portable medical devices if the processing circuitry confirms recognition of the unique portable medical device identifier received from the portable medical device, wherein the hub device comprises a storage medium comprising a data structure including a plurality of portable medical device identifiers, wherein the processing circuitry is configured to establish the communications link by matching the received unique portable medical device identifier with one of the portable medical device identifiers in the data structure, wherein the unique portable medical device identifiers are configured to be used more than once, and
• wherein the transmission by the radio transceiver of the received portable medical device data to the external device occurs without manual pre-pairing between the external device and the portable medical device.