Reconfigurable Implantable Medical System For Ultrasonic Power Control And Telemetry

A method for ultrasonic power control and telemetry, the system comprising:

• a) transmitting ultrasonic signals through a biological body via an ultrasonic communication link between a charging device and an implantable device implanted in the biological body;
• and
• b) with an ultrasonic transducer of the implantable device, receiving an ultrasonic charging signal from the charging device;
• c) harvesting energy from the received ultrasonic charging signal when the implantable device is in an energy harvesting mode;
• d) powering a sensing or actuation unit of the implantable device with the harvested energy;
• and
• e) reading data from the sensing or actuation unit and transmitting the data through the ultrasonic transducer of the implantable device when the implantable device is in the ultrasonic communication mode.

A reconfigurable implantable device for ultrasonic power control and telemetry, the implantable device implantable in a biological body and configured to communicate wirelessly with a charging device through the biological body via an ultrasonic communication link between the implantable device and the charging device, the implantable device comprising:

• an implantable ultrasonic transducer to receive an ultrasonic charging signal from the charging device and to transmit ultrasonic signals through the biological body;
• a power unit coupled to the ultrasonic transducer, the power unit configured to harvest energy from the received ultrasonic charging signal when the implantable device is in an energy harvesting mode;
• a sensing or actuation unit powered by the harvested energy;
• and
• a communication unit coupled to the power unit and the sensing or actuation unit, the communication unit configured to switch the implantable device between the energy harvesting mode and an ultrasonic communication mode, the communication unit configured to read data from the sensor or actuation unit and transmit the data through the implantable ultrasonic transducer when the implantable device is in the ultrasonic communication mode.