Some embodiments of the disclosure may include a device for wirelessly powering an implant unit in a body of a subject from a location outside of the body of the subject, wherein the implant unit includes a secondary antenna for wirelessly receiving energy. The device may include a primary antenna configured to be located external to the body of the subject, a circuit electrically connected to the primary antenna, and at least one processor electrically connected to the primary antenna and the circuit. The at least one processor may determine a resonant frequency mismatch between a first resonant frequency associated with the primary antenna and a second resonant frequency associated with the secondary antenna associated with the implant unit; and apply an adjustment to at least one component of the circuit to cause a change in the first resonant frequency associated with the primary antenna and a reduction in the resonant frequency mismatch.

A method for providing electrical stimulation to a user, the method comprising: providing an electrical stimulation device, in communication with a controller, at a head region of the user; with the electrical stimulation device, providing a stimulation treatment having a waveform configured for neuromodulation in the user; with the controller, performing an adjustment to the stimulation treatment, wherein performing the adjustment includes: generating a transformed waveform with application of a transfer function to the waveform, wherein the transfer function scales the waveform and selectively attenuates extreme waveform values while maintaining a frequency characteristic of the waveform in the transformed waveform; and applying the transformed waveform with the electrical stimulation device, thereby modulating the stimulation treatment.

A skull-mountable medical device is disclosed. The device includes a housing containing a light source for providing phototherapy to a patient. A light pipe is attached to the housing. The device is configured to be positioned on a patient's skull with the light pipe extending into the patient's brain, such that light from the light source can irradiate a target position within the patient's brain. Once so positioned, the housing may be affixed to the skull via bone screws. The device is powered and controlled by an implantable pulse generator (IPG) that may be implanted into a patient's tissue remotely from the device and connected to the device by wire leads.

An implantable medical device for providing phototherapy to a patient's brain is disclosed. The device includes a housing containing a light source for providing phototherapy to a patient. A light path is attached to the housing. The implantable medical device is configured to be positioned between a patient's skull and scalp with the light path extending into the patient's brain, such that light from the light source can irradiate a target position within the patient's brain. The implantable medical device is powered and controlled by an implantable pulse generator (IPG) that may be implanted into a patient's tissue remotely from the device and connected to the device by wire leads.

Described herein are devices and methods of use thereof for treating dry eye, tired eye, or other forms of ocular discomfort such as from contact lenses. The methods generally include applying spatially and/or temporally patterned stimulation to one or more anatomical structures located in an ocular or nasal region. The electrical stimulation may elicit a reflex that activates the lacrimal gland or may directly activate the lacrimal gland or nerves innervating the lacrimal gland to produce tears. The devices may be implantable or handheld, and may be configured to deliver the spatially and/or temporally patterned stimulation patterns described.

Some implementations provide a method for treating craniofacial pain in a patient, the method including: placing a wirelessly powered passive device through an opening into a target site in a head or neck region of the patient's body, the wirelessly powered passive device configured to receive an input signal non-inductively from an external antenna; positioning the wirelessly powered passive device adjacent to or near a nerve at the target site; and causing neural modulation to the nerve through one or more electrodes on the wirelessly powered passive device.

A device and method are provided for altering body mass composition in a human subject by applying galvanic vestibular stimulation (GVS) using electrodes placed in electrical contact with the subject's scalp at a location corresponding to each of the subject's left and right vestibular systems. The current source include a feedback loop for measuring a resistance across the subject's scalp and adjusting a voltage output to maintain a constant current across the subject's scalp. GVS may be applied for a predetermined period of time at regular intervals.

In an illustrative embodiment, methods and systems for attenuating effect(s) associated with reduction or cessation of substance use by an individual include providing a neurostimulation delivery system including a neurostimulation device having a first portion including at first electrode configured to electrically stimulate branch(s) of the auriculotemporal nerve, and a second portion including a second electrode configured to electrically stimulate auricular branch(es) of the vagus nerve, and a pulse generator including circuitry configured to deliver therapeutic stimulation pulses to the first and second electrodes. Methods and systems include positioning the neurostimulation device for administration of the neurostimulation treatment, whereby the first electrode is disposed on, over or adjacent to branch(s) of the auriculotemporal nerve, and the second electrode is disposed on, over or adjacent to auricular branch(es) of the vagus nerve, and administering the neurostimulation treatment.

A method of transplanting a sleep state of a first subject (donor) to a second subject (recipient) comprising: capturing a sleep state of the first subject represented by brain activity patterns; and transplanting the sleep state of the first subject in the second subject by inducing the brain activity patterns in the second subject.

An electro-simulation system includes an electro-stimulation device where the supplementary motor area, premotor area and/or subthalamic nucleus are stimulated extra-cranially. The electro-stimulation device includes at least one electrode, said at least one electrode being provided with a stimulation end configured to be directly attached to intrinsic auricular muscles of a human so as to establish a direct contact relation therewith, said stimulation end being operatively coupled with a sensor.