3455results about "Head electrodes" patented technology

A stereotactic navigation system for navigating an instrument to a target within a patient may include a stereotactic head frame, an imaging device, a tracking device, a controller and a display. The stereotactic head frame is coupled to the patient and is used to assist in guiding the instrument to the target. The imaging device captures image data of the patient and of the stereotactic head frame. The tracking device is used to track the position of the instrument relative to the stereotactic head frame. The controller receives the image data from the imaging device and identifies the stereotactic head frame in the image data and automatically registers the image data with navigable patient space upon identifying the stereotactic head frame, while the display displays the image data.

Sinusitis, enlarged nasal turbinates, tumors, infections, hearing disorders, allergic conditions, facial fractures and other disorders of the ear, nose and throat are diagnosed and / or treated using minimally invasive approaches and, in many cases, flexible catheters as opposed to instruments having rigid shafts. Various diagnostic procedures and devices are used to perform imaging studies, mucus flow studies, air / gas flow studies, anatomic dimension studies, endoscopic studies and transillumination studies. Access and occluder devices may be used to establish fluid tight seals in the anterior or posterior nasal cavities / nasopharynx and to facilitate insertion of working devices (e.g., scopes, guidewires, catheters, tissue cutting or remodeling devices, electrosurgical devices, energy emitting devices, devices for injecting diagnostic or therapeutic agents, devices for implanting devices such as stents, substance eluting devices, substance delivery implants, etc.

A neurological control system for modulating activity of any component or structure comprising the entirety or portion of the nervous system, or any structure interfaced thereto, generally referred to herein as a “nervous system component.” The neurological control system generates neural modulation signals delivered to a nervous system component through one or more intracranial (IC) stimulating electrodes in accordance with treatment parameters. Such treatment parameters may be derived from a neural response to previously delivered neural modulation signals sensed by one or more sensors, each configured to sense a particular characteristic indicative of a neurological or psychiatric condition.

A neurological control system for modulating activity of any component or structure comprising the entirety or portion of the nervous system, or any structure interfaced thereto, generally referred to herein as a “nervous system component.” The neurological control system generates neural modulation signals delivered to a nervous system component through one or more neuromodulators to control neurological state and prevent neurological signs and symptoms. Such treatment parameters may be derived from a neural response to previously delivered neural modulation signals sensed by one or more sensors, each configured to sense a particular characteristic indicative of a neurological or psychiatric condition.

The present application relates to a new stimulation design which can be utilized to treat neurological conditions. The stimulation system produces a burst mode stimulation which alters the neuronal activity of the predetermined site, thereby treating the neurological condition or disorder.

Disclosed are devices and methods for detecting, preventing, and / or treating neurological disorders. These devices and methods utilize electrical stimulation, and comprise a unique concentric ring electrode component. The disclosed methods involve the positioning of multiple electrodes on the scalp of a mammal; monitoring the mammal's brain electrical patterns to identify the onset of a neurological event; identifying the location of the brain electrical patterns indicative of neurological event; and applying transcutaneous or transcranial electrical stimulation to the location of the neurological event to beneficially modify brain electrical patterns. The disclosed methods may be useful in the detection, prevention, and / or treatment of a variety of indications, such as epilepsy, Parkinson's Disease, Huntington's disease, Alzheimer's disease, depression, bipolar disorder, phobia, schizophrenia, multiple personality disorder, migraine or headache, concussion, attention deficit hyperactivity disorder, eating disorder, substance abuse, and anxiety. The disclosed methods may also be used in combination with other peripheral stimulation techniques.

A device for brain stimulation includes a lead having a longitudinal surface, a proximal end, a distal end and a lead body. The device also includes a plurality of electrodes disposed along the longitudinal surface of the lead near the distal end of the lead. The plurality of electrodes includes a first set of segmented electrodes comprising at least two segmented electrodes disposed around a circumference of the lead at a first longitudinal position along the lead; and a second set of segmented electrodes comprising at least two segmented electrodes disposed around a circumference of the lead at a second longitudinal position along the lead. The device further includes one or more conductors that electrically couple together all of the segmented electrodes of the first set of segmented electrodes.

A neurological control system for modulating activity of any component or structure comprising the entirety or portion of the nervous system, or any structure interfaced thereto, generally referred to herein as a “nervous system component.” The neurological control system generates neural modulation signals delivered to a nervous system component through one or more intracranial (IC) stimulating electrodes in accordance with treatment parameters. Such treatment parameters may be derived from a neural response to previously delivered neural modulation signals sensed by one or more sensors, each configured to sense a particular characteristic indicative of a neurological or psychiatric condition.

A lead is configured and arranged for brain stimulation. The lead includes a proximal end and a distal end. The proximal end includes a plurality of terminals disposed at the proximal end. The distal end has a non-circular transverse cross-sectional shape and includes a plurality of electrodes disposed at the distal end. A plurality of conductive wires electrically couple at least one of the plurality of electrodes to at least one of the plurality of terminals.

An apparatus may include a needle for sustained delivery of drugs and other agents to the inner ear or other tissues of a human or an animal. The needle can include an insertion stop, and can be placed through the round window membrane or through a surgically-prepared hole in a bone. The needle can be in fluid communication with a port and / or with a micro-infusion or osmotic pump. A cochlear implant electrode can be used instead of a needle.

According to one aspect, a stimulation system is provided for electrically stimulating a predetermined site to treat a neurological condition. The system includes an electrical stimulation lead adapted for implantation in communication with a predetermined site, wherein the site is brain tissue site. The stimulation lead includes one or more stimulation electrodes adapted to be positioned in the predetermined site. The system also includes a stimulation source that generates the stimulation pulses for transmission to the one or more stimulation electrodes of the stimulation lead to deliver the stimulation pulses to the predetermined site to treat a neurological disorder or condition.

This invention relates to an apparatus and method for making such apparatus for providing controlled and directional stimulation patterns for tissue stimulation. The apparatus may be useful in stimulation nervous tissue in the brain, about the spinal cord, on nerve roots, about peripheral nerves, and in muscles, among others. The apparatus includes a implantable pulse generator connected to a lead. The lead has electrodes placed about a perimeter. In addition, the lead may include electrodes placed longitudinally along the axis of the lead. By applying charge differences between circumferentially distributed electrodes, a smaller stimulation field may be established. In addition, by stimulating between electrodes distributed longitudinally on the same side, a directional flow field may be established. Such leads are especially useful in deep brain stimulation as the region in which a stimulation field is strong enough to produce tissue stimulation is directional and minimized.

A device for brain stimulation includes a lead body having a longitudinal surface and a distal end. The device further includes at least one ring array. The at least one ring array includes a plurality of split ring electrodes disposed on the distal end of the lead body. Each of the plurality of split ring electrodes includes a stimulating portion and a base portion coupled to the stimulating portion. The split ring electrodes of the at least one ring array are arranged about the circumference of the lead body. At least a portion of the base portion of at least one of the plurality of split ring electrodes is disposed below, and insulated from, at least a portion of the stimulating portion of another of the plurality of split electrodes.

One embodiment is a stimulation lead including a lead body comprising a longitudinal surface, a distal end, and a proximal end; and multiple electrodes disposed along the longitudinal surface of the lead body near the distal end of the lead body. The multiple electrodes include multiple segmented electrodes with each of the segmented electrodes having an exterior surface, an interior surface opposite the exterior surface, a proximal end, and a distal end. At least one of the segmented electrodes includes one or more of a) at least one channel formed in the segmented electrode and extending from the proximal end to the distal end of the segmented electrode, b) an arcuate groove formed in at least one of the distal end surface or the proximal end surface, or c) a notch formed in the segmented electrode and extending from the proximal end to the distal end of the segmented electrode.

A lens including a flexible refractive optic having a fixed refractive index, an electro-active element embedded within the flexible refractive optic, wherein the electro-active element has an alterable refractive index, and a controller electrically connected to the electro-active element wherein when power is applied thereto the refractive index of the electro-active element is altered.

A method of treating a target region in the brain includes a) contacting tissue to be stimulated with a lead of a stimulation device, the stimulation device comprising a pulse generator coupled to the lead, the lead having a plurality of segmented electrodes disposed at a distal end of the lead, the stimulation device being configured and arranged to stimulate a target region using a positionable centroid of stimulation; b) providing stimulation current to at least one of the segmented electrodes of the lead to generate a centroid of stimulation at a location and stimulate tissue around the location of the centroid of stimulation; c) repositioning the centroid of stimulation to a next location along a helical path by altering the provision of stimulation current to the plurality of electrodes and stimulating tissue around the location of the repositioned centroid of stimulation; and d) repeating c) for each location along the helical path. The method may optionally include collecting data associated with each of the locations of the centroid of stimulation; and displaying at least a portion of the collected data.

A device for brain stimulation includes a lead having a longitudinal surface, a proximal end and a distal end; and a plurality of electrodes disposed along the longitudinal surface of the lead near the distal end of the lead. The plurality of electrodes includes at least four segmented electrodes having exposed surfaces where each exposed surface has a center point. The center points of the at least four segmented electrodes are disposed on a substantially helical path about the longitudinal surface of the lead.

A method of manufacturing a device for brain stimulation includes forming a lead body having a distal end section and coupling at least one pre-electrode to the distal end section of the lead body. The pre-electrode defines a divider with a plurality of partitioning arms, and has a plurality of fixing lumens. A portion of the pre-electrode aligned with the portioning arms is removed to divide the pre-electrode into a plurality of segmented electrodes. Each of the plurality of segmented electrodes defines at least one of the plurality of fixing lumens at least partially disposed through the segmented electrode. A material is introduced through the at least one fixing lumen to couple the plurality of segmented electrodes to the lead body.

A neurostimulation lead is configured to be implanted into a patient's body and has at least one distal electrode. The lead comprises at least one conductive filer electrically coupled to the distal electrode, a jacket for housing the conductive filer and a shield surrounding at least a portion of the filer for reducing electromagnetic coupling to the filer.

An electrode with three-dimensional capabilities for detection and control of brain state changes of a subject. The electrode includes a disk portion having an upper surface and a lower surface, and a shaft portion secured to and extending perpendicularly outwardly from the lower surface of the disk portion; the shaft portion having an outer surface. The disk portion and shaft portion may include one or more recording or stimulating contact surfaces structured to operatively interact with the brain of a subject. Insulating material isolates each of the recording or stimulating contact surfaces from each other. At least one conductor operatively and separately connect each of the recording or stimulating contact surfaces in communication with external apparatus. The disk portion and shaft portion are structured relative to each other to operatively provide support and anchoring for each other while providing three-dimensional capabilities for detection and control of brain state changes of a subject. Modified embodiments include insertible / retractable electrode wires, both contained in channels and sheathed in axially displaceable cannulae; activating mechanisms for inserting / retracting the electrode wires and / or cannulae; and multiple shaft portions.

A neurostimulating lead is provided for use in stimulating the spinal chord, spinal nerves, or peripheral nerves or for use in deep brain stimulation that comprises an elongated, flexible lead having improved steerability properties. The lead includes a plurality of thin-film metal electrodes connected by conductors embedded within the wall of the lead to electrical contacts at the proximal end of the lead. The lead is further designed to include an internal lumen for use with a guidewire in an over-the-wire lead placement.

A method of making a lead for a stimulation device includes forming at least one pre-electrode in the shape of a ring, the at least one pre-electrode comprises at least two thin-walled portions separated by at least two thick-walled portions; disposing the at least one pre-electrode near a distal end of a lead body; joining at least one conductor to each thick-walled portion of the at least one pre-electrode; and grinding the lead body and the at least one pre-electrode to remove the thin-walled portions of the at least one pre-electrode to form segmented electrodes from the thick-walled portions of the at least one pre-electrode.

A stimulation lead includes a lead body having a longitudinal surface, a distal end, a proximal end, and a shaft extending along at least a portion of the distal end of the lead body. The stimulation lead also includes multiple segmented electrode members disposed on the shaft along the longitudinal surface of the lead body near the distal end of the lead body. Each segmented electrode member includes a ring structure which forms at least a partial ring and is disposed on the shaft, and a segmented electrode coupled to the ring and having an exposed surface configured and arranged for stimulating tissue when the stimulation lead is implanted.

A neurological control system for modulating activity of any component or structure comprising the entirety or portion of the nervous system, or any structure interfaced thereto, generally referred to herein as a “nervous system component.” The neurological control system generates neural modulation signals delivered to a nervous system component through one or more intracranial (IC) stimulating electrodes in accordance with treatment parameters. Such treatment parameters may be derived from a neural response to previously delivered neural modulation signals sensed by one or more sensors, each configured to sense a particular characteristic indicative of a neurological or psychiatric condition.

An electrical stimulation lead includes a lead body insertable into a patient. Electrodes are disposed along the lead body. The electrodes include at least two sets of segmented electrodes. Each set of segmented electrodes includes a first segmented electrode and a second segmented electrode radially spaced apart from one another around a circumference of the lead body. A tab is disposed on the first segmented electrode of each set of segmented electrodes. The tabs extend into the lead body. A guide feature is disposed on the tabs. The guide features are each radially aligned with one another along the length of the lead body. Conductors extend along the length of the lead body from a proximal end to the electrodes. Each of the conductors is electrically coupled to at least one of the electrodes. At least one of the conductors extends through the radially-aligned guide features of the tabs.