Systems, devices, and methods are discussed herein for wirelessly transmitting power and/or data to an implanted device, such as an implanted electrostimulator device. In an example, the subject matter includes a layered transmitter device with multiple conductive planes and excitation features. The transmitter device can be tuned to identify and apply device parameters for efficient wireless communication with a deeply implanted device. The transmitter is generally configured for midfield powering applications by providing signals that give rise to propagating signals inside of body tissue.

Sense amplifier circuits particularly useful in sensing neural responses in an Implantable Pulse Generator (IPG) are disclosed. The IPG includes a plurality of electrodes, with one selected as a sensing electrode and another selected as a reference to differentially sense the neural response in a manner that subtracts a common mode voltage (e.g., stimulation artifact) from the measurement. The circuits include a differential amplifier which receives the selected electrodes at its inputs, and comparator circuitries to assess each differential amplifier input to determine whether it is of a magnitude that is consistent with the differential amplifier's input requirements. Based on these determinations, an enable signal is generated which informs whether the output of the differential amplifier validly provides the neural response at any point in time. Further, clamping circuits are connected to the differential amplifier inputs to clamp these inputs in magnitude to prevent the differential amplifier from damage.

In embodiments, a wearable cardioverter defibrillator (WCD) system includes a support structure for wearing by an ambulatory patient. When worn, the support structure maintains electrodes on the patient's body. Different pairs of these electrodes define different channels, and different patient ECG signals can be sensed from the channels. The ECG signals can be analyzed to determine which one is the best to use, for the WCD system to make a shock/no shock decision. The analysis can be according to widths of the QRS complexes, consistency of the QRS complexes, or heart rate agreement statistics.

Described herein are high-power pulsed electromagnetic field (PEMF) applicator apparatuses. These apparatuses are configured to drive multiple applicators to concurrently deliver high-power PEMF signals to tissue. The apparatuses may be further configured to wirelessly communicate with local computing device and a remote server for patient monitoring, prescription and/or device servicing.

The present invention relates to a multi-target electrical stimulation circuit, an electrical stimulator, and a signal output method of the electrical stimulator. The electrical stimulation circuit includes a control module, a plurality of brain wave acquisition modules and a plurality of stimulation adjustment modules. Each electrode is correspondingly provided with one brain wave acquisition module and one stimulation adjustment module, and different electrodes are used for stimulating different targets. The brain wave acquisition modules are used for acquiring brain wave signals in the corresponding electrodes and transmitting the brain wave signals to the control module. The control module is used for acquiring brain rhythm phase signals according to the received brain wave signals and outputting stimulation signals at preset waveform phase points after phase locking of the brain rhythm phase signals. The stimulation adjustment modules are used for adjusting brain wave stimulation signals output to the corresponding electrodes according to the received stimulation signals. The multi-target electrical stimulation circuit, the electrical stimulator and the signal output method provided by the present invention are beneficial for achieving electrical stimulation of a plurality of targets as well as time-locked matching of electrical stimulation of a plurality of targets.

A cochlear implant system for processing polyphonic pitch includes an electrode array for implanting in a cochlea of a patient. The electrode array includes a first set of electrodes, where each electrode of the first set is for implanting on a first region of the cochlea. The electrode array also includes a second set of electrodes, where each electrode of the second set is for implanting on a second region of the cochlea. The system also includes a sound processor configured to capture a sound signal having polyphonic pitch. For each electrode of the first set and second set, the speech processor generates at least two different modulated frequency signals from the sound signal, such that each of the modulated frequency signals corresponds to a different pitch in the sound signal. The speech processor stimulates the electrode by simultaneously applying the at least two different modulated frequency signals.

A transcutaneous neurostimulation therapy system can include an electrostimulation electronics unit, including first and second neurostimulation output which can be respectively coupled to first and second neurostimulation skin electrodes, and the electrostimulation electronics unit can include or be coupled to a rechargeable battery. The transcutaneous neurostimulation therapy system can also include battery charging circuitry configured for being coupled via the first and second neurostimulation output terminals to the electrostimulation electronics unit for charging the battery of the electrostimulation electronics unit through the first and second neurostimulation skin electrodes.

The present invention relates to a pulsed radio frequency therapy system adapted to project the beam onto the skin surface of a living body overlying a problem region, the beam serving to relieve pain and to obtain other health related beneficial effects. The system includes an energy-generating unit in which a radio-frequency carrier is over-modulated by a sonic signal to produce periodic bursts of radio-frequency energy whose repetition rate corresponds to the frequency of the signal. The output of the unit is fed to a tank circuit tuned to the carrier frequency and housed within the barrel of a portable applicator gun. Supported within the barrel and coupled to the tank circuit is a discharge electrode whose tip is adjacent to the mouth of the barrel whereby a pulsed radio frequency is projected from the tip. The portable applicator gun includes automated applicator coil tuning, automated coil protection, and a phase-up conditioning system. The energy generating unit includes a lifespan sensing system which includes a modem, a GPS, and a transceiver so that the pulsed radio frequency therapy system may transfer and/or receive information wirelessly to an external storage and/or processing area which tracks the usage, wear and tear, location, and other treatment data of the user and the therapy system.

The present disclosure provides systems and methods for providing neurostimulation therapy according to patient features. The patient features may be analyzed to develop a patient model between physiological and/or patient reported features and optimal settings for a neurostimulation therapy using machine learning operations. The model is used to control ongoing neurostimulation therapy for the patient.

A tremor-reduction system is provided that delivers electric current to a body region of a subject that is associated with a tremor. A computing device stores received data associated with a tremulous movement of the body region and determines measurements associated with the stored data. If a magnitude of the most recent tremulous movement is the same as or greater than magnitudes associated with prior tremulous movements, characteristics of a subsequent electric current to be applied to the body region may be adjusted.