Implantable electrodes with power delivery wearable for treating sleep apnea, and associated systems and methods are disclosed herein. A representative system includes non-implantable signal generator worn by the patient and having an antenna that directs a mid-field RF power signal to an implanted electrode. The implanted electrode in turn directs a lower frequency signal to a neural target, for example, the patient's hypoglossal nerve. Representative signal generators can have the form of a mouthpiece, a collar or other wearable, and/or a skin-mounted patch.

A medical device system for monitoring a physiological parameter in the body of a patient comprising an implantable medical device comprising an energy receiver, an external charger comprising an energy transmitter. The energy receiver is configured to wirelessly receive energy transmitted from the energy transmitter. The medical device system further comprises a wireless feedback system arranged to transmit information from the implantable medical device to the external charger. The information is sent in response to an interrogating signal sent from the external charger. The external charger is configured to detect a magnetic or electromagnetic field generated by the implantable medical device in response to a transmittal of energy from the external charger and an evaluation unit is configured to determine whether the signal strength is improved as a user moves the external charger relative to the body of the patient.

The present disclosure may provide a triboelectric generator equipped in an electronic device, the triboelectric generator including a power generating unit configured to generate electricity based on an ultrasound wave provided from outside, a first silicon layer arranged between an upper surface of the power generating unit and an inner surface of the electronic device, a second silicon layer arranged on a lower surface of the power generating unit, and a housing arranged to surround an outer periphery of the power generating unit, the first silicon layer, and the second silicon layer.

A control system (1) is used to control a charging process of an implantable medical device for a patient. The control system (1) includes a means for determining a temperature (10) of a tissue of a patient; and a control unit (20) configured to determine a cumulative thermal dose of the patient based on the determined temperature. The control unit (20) is configured to continue, after an interruption of the charging process and upon resumption of the charging process, the determination of the cumulative thermal dose based on one or more predefined conditions. The control unit (20) is configured to reset the determined cumulative thermal dose when a time span from interruption is greater than a time limit and/or when a measured temperature is lower than a temperature limit. A method and a corresponding computer program may also provide such control.

A structure for wireless communication having a plurality of conductor layers, an insulator layer separating each of the conductor layers, and at least one connector connecting two of the conductor layers wherein an electrical resistance is reduced when an electrical signal is induced in the resonator at a predetermined frequency. The structure is capable of transmitting or receiving electrical energy and/or data at various near and far field magnetic coupling frequencies.

An ear-wearable electronic device includes a first near-field communication (NFC) device and a transfer region configured to facilitate transfer of a wearable sensor unit into an ear of a wearer or onto an outer ear of the wearer or a surface of the wearer's head adjacent the outer ear. The wearable sensor unit comprises electronic circuitry comprising a second NFC device configured to communicatively couple to the first NFC device and facilitate wireless transfer of power from the ear-wearable electronic device to the wearable sensor unit and wireless transfer of data at least from the wearable sensor unit to the ear-wearable electronic device, and one or more sensors configured to measure at least one physiologic parameter or physiologic condition of the wearer. The wearable sensor unit and the ear-wearable electronic device are configured to remain mechanically decoupled from one another subsequent to deployment of the wearable sensor unit.

Disclosed in an accessory circuit for a modular energy system. The accessory circuit includes an accessory port configured to receive an accessory, a power supply, a processor, an isolation barrier configured to electrically isolate the processor and the power supply from the accessory port. A flexible serial communication interface is coupled between the processor and the accessory port. The flexible serial communication interface is configured to support multiple communication protocols. A presence detection circuit is coupled between the accessory port and the processor. The presence detection circuit is configured to detect presence of an accessory connected to the accessory port.

An intelligent rechargeable battery pack having a battery management system for monitoring and controlling the charging and discharging of the battery pack is described. The battery management system includes a memory for storing data related to the operation of the battery, and the battery management system is also configured to communicate the data related to the operation of the battery to other processors for analysis.

A nerve electrostimulation system using capacitive coupling energy transmission, in-vivo nerve electrostimulator, and in-vitro energy controller thereof. The nerve electrostimulation system using capacitive coupling energy transmission includes an in-vivo nerve electrostimulator and an in-vitro energy controller, and may also include a program controller having an upper computer control APP. The in-vivo nerve electrostimulator includes at least one stimulator coupling capacitor pole, a stimulator compensation resonant network, a rectification circuit, a filter capacitor, a main control chip, a stimulator harmonic communication module, and a plurality of sets of stimulation electrodes and corresponding balance capacitors, wherein the stimulator coupling capacitor pole is coupled with an energy controller coupling capacitor pole of the in-vitro energy controller, thereby receiving electrical energy from the in-vitro energy controller and achieving information exchange. The nerve electrostimulation system using capacitive coupling energy transmission can increase the electrical power to be transmitted.

Techniques are described for wirelessly charging a wearable or implantable medical device. In some embodiments, the techniques may involve determining a relative proximity of a medical device to a body of a patient. The techniques may further involve determining a power-transfer efficiency based on the relative proximity of the medical device to the body of the patient. The techniques may further involve tuning a receiving antenna of the medical device based on the determined power-transfer efficiency.