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313 results about "Implantable Electrodes" patented technology
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Devices and methods for transluminal or transthoracic interstitial electrode placement
ActiveUS7191015B2Epicardial electrodesTransvascular endocardial electrodesElectrode placementDevice implant
Methods and devices for implanting pacing electrodes or other apparatus, or for delivering substances, to the heart of other tissues within the body. A guided tissue penetrating catheter is inserted into a body lumen (e.g., blood vessel) or into a body cavity or space (e.g., the pericardial space) and a penetrator is advanced from the catheter to a target location. In some embodiments, a substance or an apparatus (such as an electrode) may be delivered through a lumen in the penetrator. In other embodiments, a guidewire may be advanced through the penetrator, the penetrating catheter may then be removed and an apparatus (e.g., electrode) may then be advanced over that guidewire. Also disclosed are various implantable electrodes and electrode anchoring apparatus.
Owner:MEDTRONIC VASCULAR INC
Vagal nerve stimulation techniques for treatment of epileptic seizures
InactiveUS6961618B2ElectrotherapyDiagnostic recording/measuringImplantable ElectrodesCardiac pacemaker electrode
Owner:FLINT HILLS SCI L L C
Vagal nerve stimulation techniques for treatment of epileptic seizures
InactiveUS6920357B2ElectrotherapyDiagnostic recording/measuringImplantable ElectrodesCardiac pacemaker electrode
The present invention uses electrical stimulation of the vagus nerve to treat epilepsy with minimized or no effect on the heart. Treatment is carried out by an implantable signal generator, one or more implantable electrodes for electrically stimulating a predetermined stimulation site of the vagus nerve, and a sensor for sensing characteristics of the heart such as heart rate. The heart rate information from the sensor can be used to determine whether the vagus nerve stimulation is adversely affecting the heart. Once threshold parameters are met, the vagus nerve stimulation may be stopped or adjusted. In an alternative embodiment, the invention may include a modified pacemaker to maintain the heart in desired conditions during the vagus nerve stimulation. In yet another embodiment, the invention may be simply a modified pacemaker having circuitry that determines whether a vagus nerve is being stimulated. In the event that the vagus nerve is being stimulated, the modified pacemaker may control the heart to maintain it within desired conditions during the vagus nerve stimulation.
Owner:OSORIO IVAN +1
Shape-memory polymer coated electrodes
There is provided a slowly implantable electrode. A coating for an electrode, the coating includes a shape-memory polymer. A method for inserting an electrode into brain tissue by inserting an implantable electrode having a shape-memory polymer coated electrode into brain tissue.
Owner:UNIV OF COLORADO THE REGENTS OF
Externally activated neuro-implant which directly transmits therapeutic signals
InactiveUS20060142822A1Enhances inductive couplingMinimized in sizeElectrotherapyArtificial respirationImplantable ElectrodesElectrical stimulations
An externally powered and controlled neuro-implant system for transmission of stimulating therapeutic signals to an implantable electrode. The system basically consists of two coils, one external active coil and one internal passive coil each housed in a ferrite pot core which enhances inductive coupling and minimizes the coils in size, thus facilitating the construction of a passive coils array to enable the usage of multi-contact electrodes for swithching of the electrical stimulation between a number of sites along the target neurons. The implanted part of the system, comprising only a coil housed in a ferrite pot core, is fully passive. The passive coil, that is implanted under the skin, is connected with the electrode placed in neighbouring of the target neural tissue via implanted thin medical grade wires. The active coil is placed on the skin overlying the passive coil. Therapeutic signals produced by the transmitter outside the body are transmitted through the coils by inductive coupling across the skin of the patient.
Owner:TULGAR METIN
Field steerable electrical stimulation paddle, lead system, and medical device incorporating the same
An implantable electrode paddle is adapted to receive an electrical signal from a medical device and generate an electrical field to stimulate selected body tissue. The paddle includes a housing including walls that define an interior space and a plurality of windows formed through at least a first one of the walls for transmitting the electrical field to the body tissue, an electrode array including a plurality of electrode groups, each electrode group including at least two electrodes individually secured in a respective window and spaced between about 0.1 mm and about 10 mm apart, and a plurality of wires, each of the wires being coupled to a respective electrode and routed within the interior space to receive the electrical signal. A lead assembly and an implantable medical device can include the paddle.
Owner:MEDTRONIC INC
Cardiac activation sequence monitoring for ischemia detection
InactiveUS20060116593A1Convenient wireless communicationElectrocardiographyHeart stimulatorsImplantable ElectrodesCardiac cycle
Cardiac monitoring and / or stimulation methods and systems that provide one or more of monitoring, diagnosing, defibrillation, and pacing. Cardiac signal separation is employed to detect, monitor, track and / or trend ischemia using cardiac activation sequence information. Ischemia detection may involve sensing composite cardiac signals using implantable electrodes, and performing a signal separation that produces one or more cardiac activation signal vectors associated with one or more cardiac activation sequences. A change in the signal vector may be detected using subsequent separations. The change may be an elevation or depression of the ST segment of a cardiac cycle or other change indicative of myocardial ischemia, myocardial infarction, or other pathological change. The change may be used to predict, quantify, and / or qualify an event such as an arrhythmia, a myocardial infarction, or other pathologic change. Information associated with the vectors may be stored and used to track the vectors.
Owner:CARDIAC PACEMAKERS INC
Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes
InactiveUS7509170B2Heart stimulatorsDiagnostic recording/measuringImplantable ElectrodesCardiac monitoring
Owner:CARDIAC PACEMAKERS INC
Method and apparatus for forming insulated implantable electrodes
A method, system, and an apparatus are provided for insulating an electrode implanted in a body of a patient. The method comprises surgically exposing a nerve of the patient, implanting at least one electrode in the body of the patient, wherein the implanting comprises coupling theat least one electrode to the nerve of the patient, providing a mold form, disposing the mold form around at least a portion of the at least one electrode and the nerve, introducing into the mold form a curable liquid insulant, allowing the curable liquid insulant to cure, removing the mold form from around the at least one electrode and from the patient's body, and surgically closing the exposure of the nerve.
Owner:LIVANOVA USA INC
Foldable, implantable electrode assembly and tool for implanting same
ActiveUS20110077660A1Undesired signalSpeed up circulationSpinal electrodesDiagnosticsImplantable ElectrodesEngineering
An electrode array assembly with a frame that is foldable or bendable on which electrodes are disposed. The frame includes laterally spaced apart bridges. Tabs extend laterally outwardly from the bridges Electrodes are disposed on the tabs. Beams, also part of the frame, extend between the laterally adjacent bridges. The frame can be folded around the beams so as to cause the laterally spaced bridges to at least partially overlap. When the beams are so bent, the electrode carrying tabs extend beyond the bent beams.
Owner:STRYKER CORP
Implantable fluid delivery apparatuses and implantable electrode
InactiveUS7044942B2Improve usabilityHead electrodesEar treatmentImplantable ElectrodesFront and back ends
Implantable fluid delivery systems and implantable electrodes are provided. The fluid delivery systems may include an implantable fluid source, a first catheter in fluid communication with the implantable fluid source, and an implantable micro-valve in fluid communication with the first catheter. The electrodes include a front end and back end for ease of implantation. One or more of the electrodes may be combined with a fluid delivery system to provide fluid to the body of a subject.
Owner:MED EL ELEKTROMEDIZINISCHE GERAETE GMBH
Arrhythmia discrimination using electrocardiograms sensed from multiple implanted electrodes
Cardiac monitoring and / or stimulation methods and systems provide for monitoring, diagnosing, defibrillation and pacing therapies, or a combination of these capabilities, including cardiac systems incorporating or cooperating with neuro-stimulating devices, drug pumps, or other therapies. Embodiments of the present invention relate generally to implantable medical devices employing automated cardiac activation sequence monitoring and / or tracking for arrhythmia discrimination. Embodiments of the invention are directed to devices and methods involving sensing a plurality of composite cardiac signals using a plurality of implantable electrodes. A source separation is performed using the sensed plurality of composite cardiac signals and the separation produces one or more cardiac signal vectors associated with one or more cardiac activation sequences that is indicative of ischemia. A change of the one or more cardiac signal vectors is detected using the one or more cardiac signal vectors. Cardiac arrhythmias are discriminated using the one or more cardiac signal vectors.
Owner:CARDIAC PACEMAKERS INC
Implantable fluid delivery apparatuses and implantable electrode
Implantable fluid delivery systems and implantable electrodes are provided. The fluid delivery systems may include an implantable fluid source, a first catheter in fluid communication with the implantable fluid source, and an implantable micro-valve in fluid communication with the first catheter. The electrodes include a front end and back end for ease of implantation. One or more of the electrodes may be combined with a fluid delivery system to provide fluid to the body of a subject.
Owner:MED EL ELEKTROMEDIZINISCHE GERAETE GMBH
Stimulation system, in particular a cardiac pacemaker
InactiveUS20090024180A1Reliable defined controlCompact structure of electrodeHeart stimulatorsImplantable ElectrodesCardiac pacemaker electrode
A stimulation system, an implantable electrode device and a method for operating an implantable electrode device are proposed. A simplified implantation, a simple construction and reliable control are made possible by the electrode device being supplied with energy, and controlled, in an exclusively wireless manner via a time-variable magnetic field. The magnetic field is generated by an implanted control device.
Owner:UNIV DUISBURG ESSEN
Method for inserting cochlear electrode and insertion tool for use therewith
InactiveUS6968238B1Minimal effortEasy to insertHead electrodesSurgical needlesImplantable ElectrodesCatheter
An implantable electrode system, adapted for insertion into a cochlea, includes an elongate electrode array stored within a sheath. The electrode array has a multiplicity of electrode contacts carried on a flexible elongate carrier, which carrier is adapted for insertion into one of the spiraling ducts, e.g., the scala tympani, of the cochlea, and further has longitudinal channel or lumen that passes therethrough. 3-6 mm from the distal end of the electrode array. To insert the electrode system into the cochlea, a stylet wire is inserted into the channel or lumen of the electrode array while the electrode array is held within the sheath. The sheath is then removed, and the electrode array is then gently guided and pushed through a cochleostomy into the cochlea by extending the stylet wire to a desired depth. As the electrode array is thus inserted into the cochlea, the stylet wire is retracted and the electrode array remains implanted within the cochlea.
Owner:BOSTON SCI NEUROMODULATION CORP
Implantable neuro-stimulation electrode with fluid reservoir
An implantable electrode with a fluid reservoir is described. An implantable electrode carrier has an outer surface including electrode contacts for electrically stimulating nearby neural tissue. A fluid reservoir within the electrode carrier stores a volume of therapeutic fluid. At least one fluid delivery port connects the fluid reservoir to the outer surface of the electrode carrier for delivering the therapeutic fluid from the fluid reservoir to the outer surface. A delivery septum port is in fluid communication with the fluid reservoir for delivering the therapeutic fluid to the fluid reservoir.
Owner:MED EL ELEKTROMEDIZINISCHE GERAETE GMBH
Intracardiac impedance and its applications
InactiveUS20070043394A1Heart defibrillatorsDiagnostic recording/measuringImplantable ElectrodesCardiac cycle
A system to measure intracardiac impedance includes implantable electrodes and a medical device. The electrodes sense electrical signals of a heart of a subject. The medical device includes a cardiac signal sensing circuit coupled to the implantable electrodes, an impedance measurement circuit coupled to the same or different implantable electrodes, and a controller circuit coupled to the cardiac signal sensing circuit and the impedance measurement circuit. The cardiac signal sensing circuit provides a sensed cardiac signal. The impedance measurement circuit senses intracardiac impedance between the electrodes to obtain an intracardiac impedance signal. The controller circuit determines cardiac cycles of the subject using the sensed cardiac signal, and detects tachyarrhythmia using cardiac-cycle to cardiac-cycle changes in a plurality of intracardiac impedance parameters obtained from the intracardiac impedance signal.
Owner:CARDIAC PACEMAKERS INC
Method and system for modulating energy expenditure and neurotrophic factors
InactiveUS20080046012A1Symptoms improvedImprove performanceElectrotherapyImplantable ElectrodesRegimen
A method system for modulating the energy expenditure and / or the expressed brain-derived neurotrophic factor (BDNF) in the brain of an individual is performed by a system that includes a control device that generates a stimulation pattern from a predetermined set of stimulation parameters, and that converts the stimulation pattern into a stimulation signal. A stimulation signal delivery mechanism, configured for implantation into a selected part of the brain, receives the stimulation signal from the control device and delivers the signal to the selected part of the brain. The stimulation signal may be an electrical signal delivered by a brain-implantable electrode, or a chemical signal in the form of a drug dosage regimen delivered by an implantable micropump under the control of the control device. Modulation of the energy expenditure and / or BDNF is achieved by the stimulation of the hypothalamus, either directly or indirectly, by the stimulation signal.
Owner:RGT UNIV OF CALIFORNIA
Method for treating obsessive-compulsive disorder with electrical stimulation of the brain internal capsule
Owner:MEDTRONIC INC
Nerve cuff for implantable electrode
A flat interface nerve electrode provides a plurality of electrical contacts embedded in a non-conductive cuff structure, which acts to gently and non-evasively redefine the geometry of a nerve through the application of a force acting on the nerve without causing damage to the nerve. The cuff is open at one side and has a connection to a lead at the other side. During implantation the open sides of the cuff are closed so as to capture the nerve in the cuff in a single motion.
Owner:CASE WESTERN RESERVE UNIV
Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes
InactiveUS20060253164A1Heart stimulatorsDiagnostic recording/measuringImplantable ElectrodesCardiac monitoring
Cardiac monitoring and / or stimulation methods and systems that provide one or more of monitoring, diagnosing, defibrillation, and pacing. Cardiac signal separation is employed for automatic capture verification using cardiac activation sequence information. Devices and methods sense composite cardiac signals using implantable electrodes. A source separation is performed using the composite signals. One or more signal vectors are produced that are associated with all or a portion of one or more cardiac activation sequences based on the source separation. A cardiac response to the pacing pulses is classified using characteristics associated with cardiac signal vectors and the signals associated with the vectors. Further embodiments may involve classifying the cardiac response as capture or non-capture, fusion or intrinsic cardiac activity. The characteristics may include an angle or an angle change of the cardiac signal vectors, such as a predetermined range of angles of the one or more cardiac signal vectors.
Owner:CARDIAC PACEMAKERS INC
Devices and methods for transluminal or transthoracic interstitial electrode placement
Methods and devices for implanting pacing electrodes or other apparatus, or for delivering substances, to the heart of other tissues within the body. A guided tissue penetrating catheter is inserted into a body lumen (e.g., blood vessel) or into a body cavity or space (e.g., the pericardial space) and a penetrator is advanced from the catheter to a target location. In some embodiments, a substance or an apparatus (such as an electrode) may be delivered through a lumen in the penetrator. In other embodiments, a guidewire may be advanced through the penetrator, the penetrating catheter may then be removed and an apparatus (e.g., electrode) may then be advanced over that guidewire. Also disclosed are various implantable electrodes and electrode anchoring apparatus.
Owner:MEDTRONIC VASCULAR INC
Posture monitoring using cardiac activation sequences
Cardiac monitoring and / or stimulation methods and systems that provide one or more of monitoring, diagnosing, defibrillation, and pacing. Cardiac signal separation is employed to detect, monitor, track and / or trend a patient's posture using cardiac activation sequence information. Devices and methods in accordance with the present invention involve sensing a plurality of composite cardiac signals using a plurality of implantable electrodes. A source separation is performed using the composite cardiac signals, which produces one or more cardiac signal vectors associated with all or a portion of one or more cardiac activation sequences. A change in a patient's posture is detected using the cardiac signal vectors. Further embodiments involve sensing the plurality of composite cardiac signals during the patient's predominant cardiac rhythm before detecting the change in the patient's posture. Other embodiments involve discriminating between one of a postural related change and a cardiac rhythm related change using the cardiac signal vectors.
Owner:CARDIAC PACEMAKERS INC
High density micromachined electrode arrays useable for auditory nerve implants and related methods
ActiveUS7991475B1Heat dissipationPrecise positioningHead electrodesSensorsImplantable ElectrodesHigh density
Devices, systems and methods that comprise or utilize implantable electrode arrays for neural stimulation and / or sensing. In some embodiments, the electrode array is implanted or inserted into the auditory nerve and is used to deliver electrical impulses to / receive data from the auditory nerve in the treatment of hearing disorders.
Owner:RGT UNIV OF CALIFORNIA
Multipolar stimulation electrode with mating structures for gripping targeted tissue
InactiveUS7467016B2Improve abilitiesMaximize current flow through a targeted bodily structureSpinal electrodesExternal electrodesImplantable ElectrodesTarget tissue
An implantable electrode assembly for gripping nerves or other bodily structures is disclosed. The assembly comprises first and second spines containing first and second leads with at least one electrode cross rail joining the spines and at least one electrode providing a route for electrical conduction between the first and second lead. Mating structures on the spines allow the spines to be joined for securely attaching the assembly around the nerve.
Owner:LIVANOVA USA INC
Variable pitch electrode array
The present invention is an implantable electrode array having electrodes with variable pitch and variable size. Electrode arrays of the prior art provide electrodes with a common spacing and size. However, this is not how the human body is arranged. As an example, the retina has closely spaced retinal receptors near the fovea. Those receptors are spaced farther apart, farther away from the fovea. Further, the amount of electrical current required to stimulate the perception of light increases with distance from the fovea. Hence, larger electrodes are required to transfer the necessary current farther away from the fovea.
Owner:DOHENY EYE INST +1
Method of making a cochlear electrode array having current-focusing and tissue-treating features
InactiveUS6862805B1Improve stabilityEasy to bendLine/current collector detailsHead electrodesImplantable ElectrodesElectrode Contact
A method of making an implantable electrode array, adapted for insertion into a cochlea, includes the steps of: (a) forming electrode contact pieces made from a precious, biocompatible material into a desired shape; (b) attaching the electrode contact pieces to a foil sheet made from a non-toxic but chemically-active metal; (c) connecting a wiring system to the metal contact pieces; (d) molding a flexible polymer carrier around the electrode contact pieces and wiring system while such are held in place by the foil sheet; and (e) etching away the foil sheet, leaving the electrode contact pieces exposed at a surface of the molded polymer carrier. The exposed electrode contacts are made so as to have a shape, geometry, or makeup that aids in controlling the current flow and current density associated with the electrode contact as a function of position on the electrode contact.
Owner:ADVANCED BIONICS AG
Implantable wireless neural device
ActiveUS20140094674A1Acquired safely and comfortablyElectroencephalographyMedical imagingElectricityWireless transceiver
Systems and methods for providing an electrical interface to a body are provided. In one embodiment, an implantable module is disclosed, comprising: an implantable electrode array, implantable within a body and capable of providing a plurality of communication channels for communicating electrical signals detected in a body; an amplifier circuit for processing electrical signals received from the electrode array; a wireless transceiver for sending and receiving telemetry data between the amplifier circuit and a wireless receiver located outside of the body; and a sealed enclosure that houses the amplifier circuit and the wireless transmitter and is biocompatible with surrounding tissue, the enclosure having a window that is transparent to a wireless medium used by the wireless transceiver. In another embodiment, a wireless transceiver and amplifier is detachably coupled to a transcutaneous attachment device, and the implantable electrode array is electrically coupled to the interface board via the transcutaneous attachment device.
Owner:BROWN UNIVERSITY
Determination of cardiac pacing parameters based on non-localized sensing
An atrioventricular delay (AVD) for cardiac pacing therapy is determined based, at least in part, on one or more cardiac activation signals sensed using body-implantable electrodes providing non-local sensing. A conduction delay is estimated using a non-local cardiac activation signal and the AVD is determined based on the conduction delay. Estimating the conduction delay may involve measuring a P-wave width or measuring a QRS complex width of the non-local signal. If multiple signals are sensed, the conduction delay may be estimated from a selected signal or may be estimated by forming a representative signal such as through averaging or other methods. The AVD may be determined as a function of the estimated conduction delay.
Owner:CARDIAC PACEMAKERS INC
Cardiac drug delivery system
A system is disclosed, for administering a therapeutic agent locally and to a depth within cardiac tissue. An elongate, flexible catheter contains a flexible electric conductor and supports at its distal end an implantable electrode incorporating a penetrating element, typically a fixation helix or a linear needle that penetrates cardiac tissue as the electrode is implanted. A therapeutic agent is delivered through the electrode, to the cardiac tissue surrounding the penetrating element. The electrode can act as a sensor, to monitor an electrical condition of the surrounding cardiac tissue, and to control delivery of the agent responsive to the sensed electrical condition. Several embodiments feature a distal reservoir adjacent the electrode for effecting transient deliveries of the therapeutic agent in minute quantities. Other embodiments are disclosed for providing sustained deliveries of the agents.
Owner:BIOCARDIA
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