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Placed in body

Subclass of:

607 - Surgery: light, thermal, and electrical application

607001000 - LIGHT, THERMAL, AND ELECTRICAL APPLICATION

607115000 - Electrical energy applicator

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
607119000 Heart 250
607117000 Spinal cord 75
607137000 Inner ear (e.g., cochlea) 71
607118000 Applicator placed around stimulated nerve 45
607133000 Gastrointestinal tract 7
607134000 Mouth 7
607138000 Rectum, vagina, or uterus 3
20110196466APPARATUS, SYSTEM AND OPERATION METHOD FOR THE TREATMENT OF FEMALE SEXUAL DYSFUNCTION - There is disclosed an apparatus for treating a sexual dysfunctional female patient, comprising an implanted stimulation device adapted to stimulate at least a part of the sexually responsive tissue of the vulva or the wall of the vagina of the patient by movement of said stimulation device and contact between said stimulation device and the sexually responsive tissue or the wall of the vagina. A system and an operation method for the treatment of female sexual dysfunction are also disclosed.08-11-2011
20090270963MEDICAL PROBE - A probe system for electro-stimulation and bio-feedback training of muscles in the pelvic floor region, in particular for pelvic floor physiotherapy and diagnosis, includes a probe having a probe body which is insertable into a vagina or a rectum, and a plurality of electrodes which are positioned at several locations along the length and around the circumference on the outer surface of the probe, the probe system further includes a control unit, operationally coupled to the probe, adapted for receiving EMG signals from each of the electrodes and for processing each of the signals for mapping the response of the muscles in the pelvic floor region.10-29-2009
20130131772URINARY INCONTINENCE DEVICE AND METHOD - A method for treating urinary incontinence is provided. The method includes providing a device, the device including an expandable portion having an outer surface, and a first electrode and a second electrode, the first and second electrodes coupled to the outer surface of the expandable portion and configured to cause a contraction of a muscle in communication with the electrodes. The method further includes causing the expandable portion to expand such that the first and second electrodes contact vaginal walls, and causing a contraction of a muscle in communication with the first and second electrodes.05-23-2013
607136000 External auditory canal 2
20110178586CRANIAL ELECTROSTIMULATION ELECTRODE UNIT - An electrode unit is provided for use in cranial electrostimulation in which an electric current transferring electrode operatively transfers electrical energy to the region of an ear of a patient. The electrode unit has an electrode carried on the outer periphery of an audio earphone of the type suitable for engagement in the entrance to, or within, the auditory canal of an ear of a patient. The electrode has an electrical contact area for operatively transferring electrical energy between the electrode and the skin of a patient fitted with the electrode unit. The electrode may have a contact surface layer exposed for direct contact with the skin of a patient, in use, or it may have an electrically conductive cover for the electrode itself. Typically, the electrode unit forms one of a pair thereof in which instance the audio earphones are a pair of stereo earphones of substantially conventional type.07-21-2011
20120078337REFERENCE ELECTRODES FOR INNER EAR STIMULATION DEVICES - A reference electrode for an inner ear stimulation device is disclosed. The reference electrode is to be implanted and includes a protruding conductor portion and an insulated conducting portion connected to a lead for connection to the device. The protruding conductor portion is shaped so as to present a generally smooth surface without any substantial projections to impede removal in the event that the electrode is withdrawn in the direction of the lead. The smooth profile and lack of an undercut assist in preventing biofilm accumulation and growth. This reduces the risk of post-surgical complications such as infection.03-29-2012
Entries
DocumentTitleDate
20110184503METHOD OF MAKING 3-DIMENSIONAL NEURAL PROBES HAVING ELECTRICAL AND CHEMICAL INTERFACES - A method of fabricating a three-dimensional neural probe includes the steps of: growing thermal oxide layer; depositing a layer of Au/Cr on the thermal oxide layer; patterning the layer of Au/Cr; depositing a layer of parylene C; etching the thermal oxide layer to release a plurality of islands; and folding the islands onto one another in stacked relation. The layer of Au/Cr is formed by an evaporation process, and the layer of parylene C is deposited to a thickness of approximately 8 μm. DRIE is used to perform the etching, and HF is used to remove the thermal oxide. A spacer is disposed intermediate of two of the islands.07-28-2011
20080269857IMPLANTABLE MEDICAL LEADS AND LEAD ASSEMBLIES WITH FLEXIBILITY, EXTENSIBILITY AND BRANCHED STRUCTURES - Implantable medical leads that are flexible and extensible in a controllable manner to facilitate subject body movements and that are bundled to create a branched lead to permit lead body ends on one or both ends of the lead to be movable relative to one another so as to be positionable in different locations. Implantable medical leads advantageously include individual lead portions, sub-bundles, and bundles that are able to be selectively positioned and implanted within a subject body and that are useful, in particular, for use in the neck region of a subject body and other regions of any subject's body that may benefit from increased flexibility, extensibility and positionability.10-30-2008
20120203318NEURAL STIMULATOR WITH PERCUTANEOUS CONNECTIVITY - An implantable neurostimulation system includes both implantable and external components. Electrical connectivity between the external and implanted components is achieved through a plurality of feedthrough pins located within an insulative wall of a percutaneous port embedded in the skin. The percutaneous port has the general shape and appearance of a small thimble, embedded in the skin with its open end facing outwardly from the skin surface, and with its closed end located below the skin surface, thereby forming a cavity or dimple in the skin. Various plugs or cartridges can be removably inserted into the cavity of the percutaneous port, in various orientations, to facilitate appropriate connectivity between the external and implanted components of the system through selected ones of the feedthrough pins. A mesh edging secured around the periphery wall of the port promotes tissue ingrowth and vascularization, thereby forming a percutaneous seal around the port that prevents infection.08-09-2012
20120203315Electrode Cable Wrap - An implantable device for the reversible accommodation of an electrode lead portion of at least one electrode lead, including a first outer surface and a second outer surface which extends parallel to the first outer surface at a distance therefrom, the first outer surface having at least one guide which can be used to guide and accommodate the portion of the electrode lead. According to a second aspect, the electromedical implant includes the above-described device and an electronic circuit with a power supply, a multipiece housing which hermetically seals the circuit and the power supply, and a connector housing which is fastened to the multipiece, hermetically sealed housing and has connectors for at least one electrode lead, the connectors being electrically connected to the electronic circuit. The electromedical implant is characterized in that the second outer surface of the device is integrated into and forms a part of the housing.08-09-2012
20130030509IMPLANTABLE MEDICAL LEAD HAVING PASSIVE LOCK MECHANICAL BODY TERMINATIONS - Disclosed herein is an implantable medical lead configured to receive a stylet. The lead may include a tubular body and a structure. The tubular body may include a distal end and a proximal end. The body may be configured to receive the stylet. The structure longitudinally may extend through the body between the distal end and the proximal end. The structure may be anchored within the body such that a tensile force arising within the body by the stylet being extended through the body causes the tensile force to be substantially carried by the structure.01-31-2013
20130030508Electrode Array for Even Neural Pressure - An electrode array attached to neural tissue, such as the retina, necessarily has graded pressure exerted on the tissue, with higher pressure near the attachment point. Greater pressure improves contact between the electrodes and neural tissue while too much pressure may damage neural tissue. Hence it is advantageous to obtain equal pressure across the array field. In the present invention a central attachment point in the electrode field applies the most even pressure. Further, multiple and selective attachment points may be additionally provided on an electrode array allowing a surgeon to select the attachment points providing the best electrode tissue contact.01-31-2013
20100023101BIOCOMPATIBLE COMPOSITES - The present invention relates to biocompatible composites, in particular biocompatible nanotube composites in the form of a fiber mat and/or film structure, comprising nanotubes and at least one biomolecule. The invention also relates to a process for preparing a biocompatible composite involving (i) forming a dispersing media comprising nanotubes and at least one biomolecule; and either (ii) introducing the dispersing media of step (i) into a coagulating media optionally comprising at least one biomolecule so as to form a continuous fiber; or (iii) filtering the dispersing media of step (i). Alternatively, the process involves (i) forming a dispersing media comprising nanotubes; and (ii) introducing the dispersing media of step (i) into a coagulating media comprising at least one biomolecule so as to form a continuous fiber. The biocompatible composite is useful as a medical device, preferably in a bio-electrode, bio-fuel cell or substrates for electronically stimulated bio-growth.01-28-2010
20130085557STIMULUS ELECTRODE FOR BIOLOGICAL TISSUE AND METHOD OF PRODUCING THE SAME - A method of producing a stimulus electrode for a biological tissue includes irradiating a surface of an electrode with an ultrashort pulse laser to form a plurality of deformations.04-04-2013
20090192578HEADER OVER-MOLDED ON A FEEDTHROUGH ASSEMBLY FOR AN IMPLANTABLE DEVICE - A header assembly for connecting a conductor terminating at a body organ with an implantable medical device is described. The header assembly comprises a base plate, a feedthrough subassembly disposed in the base plate and comprising a ceramic-to-metal seal with first and second feedthrough wires passing through the ceramic-to-metal seal; a first electrically conductive terminal connected to a distal end of the first feedthrough wire and having a first lead opening sized to receive a first portion of a lead for the conductor; a second electrically conductive terminal connected to a distal end of the second feedthrough wire and having a second lead opening sized to receive a second portion of the lead for the conductor; a body of polymeric material molded in a two-part construction to encase the conductive terminals and their feedthrough wires except for a first bore communicating from outside the polymeric body to the first and second lead openings aligned in a first co-axial relationship. Preferably, the polymeric body comprises a first polymeric material such as Techothane® or Polysulfone® encasing the terminals except the bore and an epoxy as a second polymeric material molded over the first polymeric material.07-30-2009
20090192576MEDICAL ELECTRICAL LEAD - A medical device lead is presented. One embodiment of the claimed invention includes a lead body, a conductor, and a flexible component. The lead body includes a proximal end and a distal end. The conductor is coupled to the lead body. A sleeve is coupled to the distal end of the lead body. The flexible component is coupled to the distal end of the sleeve. The distal end of the flexible component includes an outer diameter that is greater than the outer diameter of the proximal end.07-30-2009
20110196463ELECTRODE DEVICE FOR ACTIVE MEDICAL IMPLANTS - Electrode device for active medical implants with an elongated electrode body (08-11-2011
20110196461ELECTRODE UNIT FOR CARRYING CURRENT OR VOLTAGE BETWEEN AN IMPLANTABLE ELECTROMEDICAL DEVICE AND A TREATMENT AND/OR DIAGNOSIS SITE IN THE HUMAN BODY - An electrode unit for carrying current or voltage between an implantable electromedical device and a treatment and/or diagnosis site in the human body comprises at least one current-/voltage-carrying feed line (08-11-2011
20100137960IMPLANTABLE NEUROSTIMULATORS HAVING REDUCED POCKET STIMULATION - Neurostimulators and methods of using neurostimulators are provided. The neurostimulator is implanted within a tissue pocket of a patient, and electrical energy is conveyed from the neurostimulator to stimulate a target tissue site remote from the tissue pocket. The neurostimulator has a case with which one or more electrodes are associated. The electrical energy is returned to the electrode(s) in a manner that prevents, or at least reduces, pocket stimulation that may otherwise occur due to the return of electrical energy to the case of the neurostimulator.06-03-2010
20100076537ELECTRODE CONFIGURATIONS FOR ELECTROCHEMICALLY ACTIVATED SYSTEMS - An electrode for use in a liquid electrolyte is at least partially provided with a covering, the covering being ion permeable and electrically insulating. Systems and methods for preventing short circuiting of the electrodes are also disclosed. Also disclosed is a counter electrode for use with a working electrode comprising conducting polymer, in the presence of an electrolyte. The counter electrode comprises conducting polymer. Systems and methods for preventing ion depletion of the electrolyte are also disclosed.03-25-2010
20100076536IMPLANTABLE MULTI-ELECTRODE DEVICE - The invention provides an implantable multi-electrode device (03-25-2010
20100076535LEADS WITH NON-CIRCULAR-SHAPED DISTAL ENDS FOR BRAIN STIMULATION SYSTEMS AND METHODS OF MAKING AND USING - 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.03-25-2010
20100076534MALLEABLE NEEDLE HAVING A PLURALITY OF ELECTRODES FOR FACILITATING IMPLANTATION OF STIMULATION LEAD AND METHOD OF IMPLANTING AN ELECTRICAL STIMULATION LEAD - In one embodiment, a malleable needle is provided at least three independent electrodes to facilitate the implantation of an electrical stimulation lead for peripheral nerve stimulation. The malleable characteristic of the needle enables the needle to be bent or shaped according to the patient anatomy. Once the needle is appropriately shaped by the physician, the physician inserts the needle into a prospective site for stimulation. The provision of the electrodes enables a suitable number of electrode patterns to be tested to determine whether the stimulation site is satisfactory. By utilizing the malleable needle in this manner, a number of stimulation sites can be tested in an efficient manner to identify an optimal location for implantation of the stimulation lead.03-25-2010
20100114278DEPOSITED CONDUCTIVE LAYERS FOR LEADS OF IMPLANTABLE ELECTRIC STIMULATION SYSTEMS AND METHODS OF MAKING AND USING - An implantable lead includes an inner core substrate. A plurality of conductors that include at least one layer of at least one conductive material are deposited on the inner core substrate. A patterned insulator layer is disposed over the conductors such that at least two regions of each conductor remain exposed through the insulator. A patterned terminal layer defines a plurality of separated terminals that are deposited at a proximal end of the lead. At least one terminal is electrically coupled to each conductor via at least one of the exposed regions of the at least one conductor. A patterned electrode layer defines a plurality of separated electrodes that are deposited at a distal end of the lead. At least one electrode is electrically coupled to each conductor via at least one of the exposed regions of the at least one conductor.05-06-2010
20130079860BIOMEDICAL ELECTRODE SYSTEM AND METHOD FOR DETECTING LOCALIZED ELECTRICAL SIGNALS AND PROVIDING ELECTRICAL STIMULATION - A biomedical electrode is disclosed that includes at least first and second electrical nodes for connection to medical equipment. The biomedical electrode includes a first electrical node including a disc of conductive material having a diameter d03-28-2013
20100145427METHODS AND APPARATUS FOR EFFECTUATING A LASTING CHANGE IN A NEURAL-FUNCTION OF A PATIENT - The following disclosure describes several methods and apparatus for intracranial electrical stimulation to treat or otherwise effectuate a change in neural-functions of a patient. Certain embodiments of methods in accordance with the invention electrically stimulate the brain at a stimulation site where neuroplasticity is occurring or is expected to occur. The stimulation site may be different than the region in the brain where neural activity is typically present to perform the particular neural function according to the functional organization of the brain. In one embodiment in which neuroplasticity related to the neural-function occurs in the brain, the method can include identifying the location where such neuroplasticity is present or expected to occur. In an alternative embodiment in which neuroplasticity is not occurring in the brain, an alternative aspect is to induce neuroplasticity at a stimulation site where it is expected to occur. Several embodiments of these methods that are expected to produce a lasting effect on the intended neural activity at the stimulation site use electrical pulses that increase the resting membrane potential of neurons at the stimulation site to a subthreshold level.06-10-2010
20100016936FREQUENCY SELECTIVE PASSIVE COMPONENT NETWORKS FOR IMPLANTABLE LEADS OF ACTIVE IMPLANTABLE MEDICAL DEVICES UTILIZING AN ENERGY DISSIPATING SURFACE - Decoupling circuits are provided which transfer energy induced from an MRI pulsed RF field to an energy dissipating surface. This is accomplished through broadband filtering or by resonant filtering. In a passive component network for an implantable leadwire of an active implantable medical device, a frequency selective energy diversion circuit is provided for diverting high-frequency energy away from a leadwire electrode to a point or an area spaced from the electrode, for dissipation of high-frequency energy.01-21-2010
20130041444MEDICAL DEVICE LEAD WITH CONDUCTOR FRACTURE PREDICTION - A medical device lead includes a lead body having a proximal end and a distal end. The proximal end is configured for connection to a pulse generator. One or more electrodes are at a distal end of the lead body, and a lead conductor extends through the lead body and is electrically coupled to at least one of the one or more electrodes. The conductor is configured to deliver electrical signals between the proximal end and the at least one of the one or more electrodes. A sacrificial conductor extends through the lead body adjacent to lead conductor and is configured to fail at a lower stress than the lead conductor.02-14-2013
20100042192Implantable Electrophysiology Lead Body - The invention is an electrophysiology lead body comprising two or more longitudinal elements, each having an outer surface, the longitudinal elements comprising electrical insulation material, the electrical insulation material consisting essentially of fluoropolymer; at least one conductor disposed within at least one of the longitudinal elements; and a cover consisting essentially of fluoropolymer, wherein the cover surrounds the longitudinal elements.02-18-2010
20100042190IMPLANTABLE MEDICAL LEAD HAVING REDUCED DIMENSION TUBING TRANSITION - Lead body designs for forming a fluid tight seal between a multilumen tube and other portions of a lead body are provided. One lead body design has a multilumen tube having a first portion defining a first number of lumens and a second reduced dimension portion defining a second number of lumens, the second number of lumens being smaller than the first number of lumens. The reduced dimension portion is attached to a distal tip portion of the lead body, forming a fluid tight passageway through the multilumen tube to the distal tip portion. Also provided are methods for forming such multilumen tubes and incorporating such multilumen tubes into a lead body.02-18-2010
20100042189CONNECTING DEVICE AND METHOD FOR MANUFACTURING THE SAME - A connecting device for connection of a medical implantable lead to tissue inside a body has a helix adapted to be screwed out from a header sleeve at a distal end of the lead and into the tissue, and a shaft which carries the helix and is rotatably journalled in the lead and at the same time is displaceable to extend the helix into the tissue. The helix and the shaft are integrated and manufactured in one unitary piece. A method for manufacturing of such a connecting device includes the step of manufacturing the helix and shaft in one unitary piece.02-18-2010
20100042191Implantable Electrophysiology Lead Body - The invention is an electrophysiology lead body comprising two or more longitudinal elements, each having an outer surface, the longitudinal elements comprising electrical insulation material, the electrical insulation material consisting essentially of fluoropolymer; at least one conductor disposed within at least one of the longitudinal elements; and a cover consisting essentially of fluoropolymer, wherein the cover surrounds the longitudinal elements.02-18-2010
20100324636MEDICAL IMPLANTABLE LEAD WITH PIVOTING SEGMENTS (As Amended) - A medical implantable lead, which is adapted to be attached with a distal end to tissue inside a human or animal body, has a distal end that is variable in size between an introducing state, when the distal end has a minimum surface area, and a mounting state when the surface area of the distal end is enlarged in relation to its minimum surface area. For this purpose, the distal end of the medical implantable lead has several pivoting segments, each being pivotally hinged about a pivot axis directed substantially tangentially in relation to the lead, with each pivoting segment being pivotable about the pivot axis between an introducing state in which each pivoting segment is rotated to a position in parallel or in a small angle to the longitudinal axis of the lead, and a mounting state in which each pivoting segment is rotated to a position essentially perpendicular to the longitudinal axis of the lead.12-23-2010
20090157155GRAPHICAL DISPLAY OF ENVIRONMENTAL MEASUREMENTS FOR IMPLANTABLE THERAPIES - A method and system of providing therapy to a patient implanted with an array of electrodes is provided. The electrodes are configured for respectively providing electrical stimulation to tissue of the patient. The method comprises measuring physiological parameter information indicative of the coupling efficiencies between the respective electrodes of the array and the tissue, computing numerical values from the measured physiological parameter information, generating a chart representative of the computed numerical values, and displaying the chart to a user.06-18-2009
20100106231MEDICAL DEVICES AND METHODS FOR DELIVERY OF CURRENT-BASED ELECTRICAL STIMULATION THERAPY - A medical electrical stimulator provides selective control of stimulation via a combination of two or more electrodes coupled to respective regulated current paths and one or more electrodes coupled to unregulated current paths. Constant current sources may control the current that is sourced or sunk via respective regulated current paths. An unregulated current path may sink or source current to and from an unregulated voltage source that serves as a reference voltage. Unregulated electrodes may function as unregulated anodes to source current from a reference voltage or unregulated cathodes to sink current to a reference voltage.04-29-2010
20100331936MEDICAL DEVICE LEAD INCLUDING A UNIFILAR COIL WITH IMPROVED TORQUE TRANSMISSION CAPACITY AND REDUCED MRI HEATING - A conductor assembly for a medical device lead includes a helically coiled conductor including a plurality of turns having a coil pitch and an outer diameter and consisting of one filar having a filar diameter. The coil pitch and outer diameter are selected based on the filar diameter to minimize heating of the helically coiled conductor in the presence of an MRI field. A polymer sheath is formed about the helically coiled conductor such that the coil pitch of the unifilar helically coiled conductor is maintained. The polymer sheath is configured to increase a torque transmitting capacity of the helically coiled conductor.12-30-2010
20100331933MICROSTIMULATOR WITH FLAP ELECTRODES - An implantable microstimulator includes an elongate casing, a flap coupled directly to the casing, and electrodes attached to the flap such that the electrodes extend laterally relative to the longitudinal axis of the casing. The electrodes are coupled to active circuitry that is housed within the casing. Due to the lateral arrangement of the electrodes relative to the casing, effective operation of the microstimulator may still occur even after the microstimulator migrates away from the target stimulation site. Since there are not any leads associated with the microstimulator, the entire microstimulator, including the electrodes and the casing, is implanted adjacent to the target stimulation site. The electrodes may be configured for mono-polar or multi-polar stimulation. In one example, the microstimulator includes an insulative coating on the casing and the coating and the flap are contiguous.12-30-2010
20120185025Electronics Package Suitable for Implantation - The invention is directed to a method of bonding a hermetically sealed electronics package to an electrode or a flexible circuit and the resulting electronics package that is suitable for implantation in living tissue, such as for a retinal or cortical electrode array to enable restoration of sight to certain non-sighted individuals. The hermetically sealed electronics package is directly bonded to the flex circuit or electrode by electroplating a biocompatible material, such as platinum or gold, effectively forming a plated rivet-shaped connection, which bonds the flex circuit to the electronics package. The resulting electronic device is biocompatible and is suitable for long-term implantation in living tissue.07-19-2012
20120185024Self-Dissolving Electrode or Probe Implant - The present disclosure relates to permanently implantable electrode structures or probes of the type used, in particular, in cardiac pacemakers, ICDs, CRT-Ds and/or neurostimulators. Such electrode structures or probes include at least one control element, the physical-chemical state of which can be specifically manipulated using external excitation, such that local degradation or dissolution of a part of the implant or the entire implant takes place in this region. As a result of this partial dissolution, for example, the electrode structure or at least a portion thereof is modified such that the conditions for explantation are improved and/or parts of an implanted electrode structure that remain in the body are functionally deactivated.07-19-2012
20120185023IMPLANTABLE ACTIVE FIXATION LEAD WITH BIODEGRADABLE HELICAL TIP - Described is an implantable lead comprising a flexible body extending between a proximal end and a distal end and a distal assembly coupled to the distal end of the body. The distal assembly includes a housing having a distal end and a proximal end, the proximal end fixedly coupled to the distal end of the lead body, a coupler rotatably disposed within the housing, the coupler having a proximal end and a distal end, and a helical electrode fixedly secured to the distal end of the coupler. The helical electrode comprises a proximal axial length portion that comprises a non-degradable material, and a distal axial length portion that comprises a biodegradable material. The coupler and the helical electrode are configured to rotate and therefore translate relative to the housing.07-19-2012
20090125089Implantable Electrophysiology Lead Body - The invention is an electrophysiology lead body comprising two or more longitudinal elements, each having an outer surface, the longitudinal elements comprising electrical insulation material, the electrical insulation material consisting essentially of fluoropolymer; at least one conductor disposed within at least one of the longitudinal elements; and a cover consisting essentially of fluoropolymer, wherein the cover surrounds the longitudinal elements.05-14-2009
20090125088Implanting Medical Devices - Systems and techniques for implanting medical devices. In one aspect, an apparatus includes a flexible base member that can be flexed manually to conform to a contour of an anatomy, the base member including a radioscopic indicium that has a characteristic such that, under radioscopic imaging, passage of a skin-penetrating electromagnetic radiation is hindered to an extent that is distinguishable from a hindrance of the electromagnetic radiation by another portion of the base member.05-14-2009
20100094387ELECTRODE DESIGN FOR LEADS OF IMPLANTABLE ELECTRIC STIMULATION SYSTEMS AND METHODS OF MAKING AND USING - A lead includes a lead body with a distal end and a proximal end. A plurality of terminals are disposed at the proximal end of the lead body. A plurality of electrodes are disposed at the distal end of the lead body. Each electrode includes an electrode body and at least one anchoring member. The at least one anchoring member couples to the electrode body and extends into the lead body and beneath the electrode body to anchor the electrode to the lead body. A plurality of conductive wires electrically couple the plurality of electrodes to the plurality of terminals.04-15-2010
20130138191IMPLANTABLE ANCHOR WITH LOCKING CAM - There is disclosed various embodiments of an implantable anchor for anchoring a medical lead within a patient. The implantable anchor includes a body having at least one lumen for receiving a medical lead, a cam integrated with the body and rotatable to extend into the lumen for engaging the medical lead and inhibiting the movement of the lead with respect to the anchor. The cam may include a handle for facilitating the rotation of the cam. A needle could be connected to the handle to facilitate the securing of the anchor to a portion of the patient.05-30-2013
20100070006INTERFACE APPARATUS FOR STIMULATION OF BIOLOGICAL TISSUE - An apparatus for interfacing between tissues being stimulated is provided. The apparatus includes an electric source capable of generating an applied electric field across a region of tissue and/or a means for altering at least one electromagnetic characteristic of the region of tissue relative to the applied electric field and an interface component, such interface component creating an interface between the region of tissue and the applied electric field or the means for altering at least one electromagnetic characteristic of the region of tissue.03-18-2010
20100036467STIMULATION DEVICE FOR OSTEOSYNTHESIS AND ENDOPROSTHETICS - The invention relates to a stimulation device for implanting in a human body, comprising a coil arrangement, a first electrode that is connection to a first pole of the coil arrangement and a second electrode that is connected to a second pole of the coil arrangement. According to the invention, the second electrode is configured as an elastic contact element.02-11-2010
20090043367APPARATUS AND METHODS FOR REMOVING AN ELECTRONIC IMPLANT FROM A BODY - An apparatus includes an electronic stimulator configured to be implanted within a body, and a flexible member coupled to the electronic stimulator by an adhesive. In some embodiments, the flexible member is formulated to be soluble when exposed to a bodily tissue.02-12-2009
20110004283SHIELDED THREE-TERMINAL FLAT-THROUGH EMI/ENERGY DISSIPATING FILTER - A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both.01-06-2011
20090306751IMPLANTABLE NEUROSTIMULATOR ADAPTERS - An adapter for coupling a plug of an implantable neurostimulator lead extension to a connector port of a neurostimulator device includes an elongate body, a connector including a plurality of contacts coupled to a first end of the elongate body, and a housing including at least two ports coupled to a second end of the elongate body. The adapter connector contacts provide for electrical coupling within the device port, and the adapter housing ports are arranged to receive side-by-side connector terminals of the lead extension plug. Housing contacts within each port provide for electrical coupling with corresponding contacts of the connector terminals of the lead extension plug and are coupled to corresponding contacts of the adapter connector via conductors extending within the elongate body between the housing and the connector.12-10-2009
20090306750Lead Fixation Assembly and Methods of Using Same - A lead fixation assembly and method of using the same are disclosed. The lead fixation assembly includes a cover and a cap. The cover includes an aperture extending through a cover body and is adapted to fit within an opening formed or occurring in a patient's body. One or more leads may be oriented through the aperture before or after fitting the cover in such an opening. The cover body includes a top surface having a plurality of elements. Each lead oriented through the aperture is arranged on or in and among the elements and may be secured thereby. The cap is adapted to be removably secured to the cover, minimize exposure to the patient via the opening, and, optionally, secure the leads. The leads are passed through an opening in the cap to enable the leads to extend away from the body.12-10-2009
20130073021BAND STOP FILTER EMPLOYING A CAPACITOR AND AN INDUCTOR TANK CIRCUIT TO ENHANCE MRI COMPATIBILITY OF ACTIVE MEDICAL DEVICES - An implantable lead includes a lead conductor having a length extending from a proximal end to a distal end. A self-resonant inductor is connected in series along a portion of the length of the lead conductor. The self-resonant inductor includes a single length of conductive material including a dielectric coating substantially surrounding the single length of conductive material. The self-resonant inductor includes a first coiled or spiral conductor disposed along an inductor section spanning in a first direction from a first location to a second location. A second coiled or spiral conductor is disposed along the inductor section spanning in a second direction from the second location to the first location, where the second direction is opposite the first direction. A third coiled or spiral conductor is disposed along the inductor section spanning in the first direction from the first location to the second location.03-21-2013
20130073020HEADER EMBEDDED FILTER FOR IMPLANTABLE MEDICAL DEVICE - A filter circuit embedded into a header of an implantable medical device attenuates energy that may otherwise enter the implantable medical device. At MRI frequencies, the impedance of the filter circuit is much higher than the impedance of the feedthrough capacitor of the implantable medical device. Thus, MRI-induced current that would otherwise enter the implantable medical device is limited by the filter circuit. Consequently, localized device heating that may otherwise occur during MRI scanning is significantly reduced by operation of the filter circuit. In some implementations, the header embedded filter circuit is electrically isolated from the header housing. In this way, localized heating of the header housing also may be avoided.03-21-2013
20110015713SYSTEMS AND METHODS FOR REDUCING LEAD HEATING AND THE RISKS OF MRI-INDUCED STIMULATION - An implantable medical lead is described herein wherein the lead includes a tubular body, an electrode, a lead connector end and a helical conductor. The tubular body includes a proximal end and a distal end. The electrode is coupled to the body near the distal end. The lead connector end is coupled to the body near the proximal end. The helical conductor coil extends through the body from the lead connector end to the electrode. In extending through the body, the helical conductor coil first extends distally for a distance, then proximally for the distance, and then distally for the distance within a single helical layer of the helical conductor coil. The electrode may be a ring electrode.01-20-2011
20110015712LIVING BODY ELECTRICITY NEEDLE - A disposable electricity needle is disclosed, which includes a positive pole metal member which is wound on an upper outer side of a needle body having a certain length; a partition member which is positioned at a lower side of the positive pole metal member and is installed in an outer surface of the needle body and contains an electrolyte material; and a negative pole metal member which is wound on an outer surface of the partition member.01-20-2011
20130060313SURGICAL LEAD PADDLE - The present invention provides for an improved apparatus and method for electrical stimulation. A paddle having a thickness up to 0.030 inches is implanted adjacent the spinal cord dura mater to reduce the likelihood of paralysis due to stress on the spinal cord attributed to bulkier leads. The paddle is then positioned so that at least one of a plurality of electrodes is positioned over the area of the spinal cord requiring pain treatment; and then electric stimulation is applied to the electrodes to effect pain treatment. In another embodiment the paddle is curved about a vertical axis to substantially match the shape of a human spinal cord dura mater to help reduce lead migration.03-07-2013
20130060314LEAD INCLUDING CONDUCTORS CONFIGURED FOR REDUCED MRI-INDUCED CURRENTS - An implantable medical device lead includes an inner conductor coil comprising one or more generally cylindrically wound filars. The inner conductor coil is configured to have a first inductance value greater than or equal to 0.2 μH/inch when the inner conductor coil is subjected to a range of radio frequencies. The implantable medical device lead also includes a multi-filar outer coil comprising two or more generally cylindrically wound filars. The multi-filar outer coil is configured to have a second inductance value greater than or equal to 0.1 μH/inch when the multi-filar outer coil is subjected to the range of radio frequencies.03-07-2013
20130060312FEEDTHROUGH ASSEMBLY INCLUDING A LEAD FRAME ASSEMBLY - A feedthrough assembly may include a ferrule defining a ferrule opening, a feedthrough at least partially disposed within the ferrule opening, a capacitive filter array at least partially disposed within the ferrule opening, and a lead frame assembly. The feedthrough may include at least one feedthrough conductive pathway and the capacitive filter array may include at least one filter array conductive pathway. The lead frame assembly may include an electrically conductive lead electrically connecting the at least one feedthrough conductive pathway and the at least one filter array conductive pathway.03-07-2013
20090270959LEAD CONDITION ASSESSMENT FOR AN IMPLANTABLE MEDICAL DEVICE - A method, system, and apparatus for performing a lead condition assessment and/or a lead orientation determination associated with an implantable medical device (IMD). A first impedance is determined. The first impedance relates to the impedance relative to a first electrode and a portion of the IMD. A second impedance is determined. The second impedance relates to the impedance relative to a second electrode and the portion of the IMD. The first impedance is compared with the second impedance to determine an impedance difference. A determination is made whether the impedance difference is outside a predetermined tolerance range. Furthermore, artifact measured during impedance measurements or test pulses may be compared to assess lead orientation. An indication of a lead condition error is provided in response to determining that the impedance difference is outside the predetermined tolerance range.10-29-2009
20090270958Simply Supported Neural Stimulation Electrode Array for Applying Pressure on Neural Tissue - The present invention is an electrode array for neural stimulation suitable to be attached to neural tissue such that the attachment point acts as a fulcrum like point and contact with an end of the array body presses the other end of the array body into the neural tissue to be stimulated. This invention is particularly useful in a retinal electrode array for a visual prosthesis. By curving an electrode portion of an array body to approximate but not exceed (never more tightly curved) the curvature of the retina and applying force to the array by external means at the fulcrum like point, approximately even pressure across all electrodes is achieved.10-29-2009
20090270957STIMULATION SYSTEM WITH PERCUTANEOUSLY DELIVERABLE PADDLE LEAD AND METHODS OF MAKING AND USING - An implantable lead includes an expandable paddle body and a plurality of electrodes disposed on the paddle body. The electrodes are configured and arranged to provide electrical stimulation to adjacent tissue when implanted and the lead is coupled to a control module. The paddle body is configured for percutaneous implantation through an introducer followed by expansion of a volume of the paddle body by at least 10%. Alternatively, the paddle body is configured for percutaneous implantation and when implanted the lead is configured and arranged so that a position or orientation of the plurality of electrodes relative to the paddle body can be altered.10-29-2009
20090270956IMPLANTABLE MEDICAL LEAD CONFIGURED FOR IMPROVED MRI SAFETY - Disclosed herein is an implantable medical lead for coupling to an implantable pulse generator and configured for improved MRI safety. In one embodiment, the lead includes a tubular body, an electrode, an electrical conductor, and a shield layer. The tubular body includes a proximal end and a distal end. The electrode is operably coupled to the tubular body near the distal end. The electrical conductor extends distally through the body from the proximal end and electrically connects to the electrode. The shield layer extends through the tubular body between the proximal and distal ends. The shield layer is configured to reduce an amount of current induced in the electrical conductor when present in an electromagnetic field as compared to the current that would be induced in the electrical conductor absent the shield layer.10-29-2009
20090030493Ribbon Electrode - We disclose an electrode assembly comprising a ribbon electrode having a first surface and a second surface; a plurality of bosses disposed on the second surface of the ribbon electrode, wherein each boss has a third surface substantially not in contact with the second surface of the ribbon electrode and at least one boss is electrically conducting; and an insulator contacting substantially the entire second surface of the ribbon electrode and substantially the entire third surface of each boss; wherein the insulator is substantially not in contact with the first surface of the ribbon electrode. We also disclose an implantable medical device system comprising an implantable medical device for generating an electrical signal; an electrode assembly as described; and a lead wire electrically coupled to both the implantable medical device and at least one electrically conducting boss of the electrode assembly.01-29-2009
20130066410CRANIAL BURR HOLE PLUG WITH ANTI-SKEWING CLAMPING MECHANISM - A burr hole plug comprises a plug base configured for being mounted around a burr hole. The plug base includes an aperture through which an elongated medical device exiting the burr hole may pass. The plug base is configured to accommodate a variety of cranium forms without requiring deformation of the plug base. A plug base holding tool is used to secure the plug base to the cranium, wherein the tool aligns fasteners with the plug base for insertion through the plug base and into the cranium. The burr hole plug further comprises a retainer configured for being mounted within the aperture of the plug base to secure the medical device. The retainer includes a clamping mechanism that secures the elongated medical device in the burr hole plug, wherein the movement of the clamping mechanism is controlled to prevent skewing of the clamping mechanism.03-14-2013
20110022140METHODOLOGY AND APPARATUS TO TERMINATE ABANDONED ACTIVE IMPLANTABLE MEDICAL DEVICE LEADS - An energy management system facilitates the transfer of high frequency energy coupled into an implanted abandoned lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted abandoned lead to the energy dissipating surface of an abandoned lead cap through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted abandoned lead's impedance characteristics.01-27-2011
20110022139Electrode having erectable lead - Disclosed is an electrode, such as an SCS paddle electrode, having a lead attached thereto along an interior portion of the electrode. The lead and electrode are configured such that the lead may be positioned generally coplanar with a top surface of the electrode, and may likewise be erected from such coplanar orientation up and away from the top surface of the electrode. Thus, the lead can maintain the typical configuration of emerging from the back end of the electrode, but because at least portions of the lead are not permanently bonded into the electrode paddle, the lead (when desired) can be pulled upward, with or without surrounding strain relief material, to emerge from the top surface of the paddle at an angle or curve to such top surface. This allows the base of the paddle to engage a bony opening, such as when the electrode is inserted into a patient's spine, skull, plane of fascia, etc.01-27-2011
20090234427SYSTEMS, APPARATUSES, AND METHODS FOR DIFFERENTIATING BETWEEN MULTIPLE LEADS IMPLANTED WITHIN A PATIENT - Systems, apparatuses, and methods for differentiating between multiple leads that are implanted within a patient include a stimulator configured to be implanted at an implant site within the patient and generate electrical stimulation current, a plurality of leads each comprising one or more electrodes configured to deliver the electrical stimulation current at a stimulation site within the patient, and a shuttle assembly having a plurality of receiving ports each configured to receive a proximal portion of one of the leads and guide the leads from the stimulation site to the implant site of the stimulator. The shuttle assembly is configured to enable a user to differentiate between each of the leads after the leads are guided to the implant site of the stimulator.09-17-2009
20090234426IMPLANTABLE ELECTRODE AND METHOD OF MAKING THE SAME - The implantable electrode system of the preferred embodiments include a conductor, an interconnect coupled to the conductor, an insulator that insulates the interconnect, and an anchor that is connected to both the conductor and the insulating element, wherein the anchor is mechanically interlocked with at least one of the conductor and the insulator.09-17-2009
20130166007DIRECTIONAL FEATURES FOR IMPLANTABLE MEDICAL LEADS - An implantable cardiac rhythm management (CRM) system for directing stimulation energy toward a target tissue and away from unwanted tissues for providing an appropriate stimulation is provided by the present invention. The implantable cardiac rhythm management (CRM) system includes an implantable lead. The implantable lead includes a lead body and an electrically insulating member. The lead body includes at least one electrode extending substantially around the lead body. The electrically insulating member defines at least one window. At least one insulating member includes a protruding portion configured to urge at least one electrode toward the target tissue.06-27-2013
20130166008ELECTRODE ARRAY HAVING CONCENTRIC WINDOWED CYLINDER ELECTRODES AND METHODS OF MAKING THE SAME - A device for brain stimulation includes a lead body having a distal end section and at least one inner conductive cylinder with at least one inner window cut out from the inner cylinder. The inner cylinder is disposed at the distal end section of the lead body. The device also includes an outer conductive cylinder with at least one outer window cut out from the outer cylinder. The outer cylinder is secured to and disposed concentric to the inner cylinder with a portion of each of the at least one inner cylinder aligned with the at least one outer window of the outer cylinder. The device further includes an insulator configured and arranged to electrically insulate each of the at least one inner cylinder and the outer cylinder.06-27-2013
20130166006Neuromodulation Systems and Methods for Treating Epilepsy - A neuromodulation system for treating epilepsy provides therapeutic elements for modulating nerve activity to prevent or diminish (e.g. through reduced intensity or shortened duration) epileptic seizures. The therapeutic elements may be positioned in the vasculature of the patient and are energized to modulate nerve fibers positioned outside the vascular walls. Electrode positions may include the maxillary vein, inferior alveolar vein, lingual vein, retromandibular or facial vein, or the emissary vein of the foramen ovale. Target nerves include the mandibular branch (V06-27-2013
20090012593Multiple electrode lead and a system for deep electrical neurostimulation including such a lead - A lead for deep electrical neurostimulation, the lead comprising: 01-08-2009
20090012591LEAD WITH CONTACTS FORMED BY COILED CONDUCTOR AND METHODS OF MANUFACTURE AND USE - A lead includes an elongated lead body of non-conductive material and a plurality of conductive wires. Each wire has a first portion disposed within the lead body and a second portion extending out of the lead body. The second portion is coiled around the lead body to form a contact on the outer surface of the lead.01-08-2009
20080294228METHOD AND DEVICE FOR CONTROLLED STIMULATION OF LYMPHATIC FLOW - A device and method for controllably augmenting the flow of lymphatic fluid through one or more lymphatic vessels. The device may utilize various means of modulating the flow of lymph, including neural, mechanical and/or chemical stimulation and could be a stand-alone device or be incorporated into any cardiac, neuromodulation and/or drug delivery device.11-27-2008
20120271390IMPLANTABLE PULSE GENERATOR COMPRISING MRI CURRENT LIMITING WINDINGS IN HEADER STRUCTURE - In one embodiment, a pulse generator for generating electrical stimulation for delivery to a patient, comprises: a hermetically sealed housing containing pulse generating circuitry; a header coupled to the housing for receiving one or more stimulation leads, wherein feedthrough wires are provided to conduct electrical pulses from the pulse generating circuitry to the header; the header comprising a plurality of connectors for electrically connecting to each terminal of the one or more stimulation leads, wherein an inductive winding is disposed around or adjacent to each of the connector structures and is electrically connected between the respective connector structure and a corresponding feedthrough wire to limit MRI induced heating of a respective electrode of the one or more stimulation leads.10-25-2012
20110034979IMPLANTABLE MEDICAL DEVICE LEAD INCORPORATING INSULATED COILS FORMED AS INDUCTIVE BANDSTOP FILTERS TO REDUCE LEAD HEATING DURING MRI - To provide radio-frequency (RF) bandstop filtering within an implantable lead, such as a pacemaker lead, one or more segments of the tip and ring conductors of the lead are formed as insulated coils to function as inductive band stop filters. By forming segments of the conductors into insulated coils, a separate set of discrete or distributed inductors is not required, yet RF filtering is achieved to, e.g., reduce lead heating during magnetic resonance imaging (MRI) procedures. To enhance the degree of bandstop filtering at the RF signal frequencies of MRIs, additional capacitive elements are added. In one example, the ring electrode of the lead is configured to provide capacitive shunting to the tip conductor. In another example, a capacitive transition is provided between the outer insulated coil and proximal portions of the ring conductor. In still other examples, conducting polymers are provided to enhance capacitive shunting. The insulated coils may be spaced at ¼ wavelength locations.02-10-2011
20110034977IMPLANTABLE ELECTRODE ARRAY ASSEMBLY INCLUDING A CARRIER FOR SUPPORTING THE ELECTRODES AND CONTROL MODULES FOR REGULATING OPERATION OF THE ELECTRODES EMBEDDED IN THE CARRIER, AND METHOD OF MAKING SAME - An implantable electrode array that includes multiple spaced apart electrodes to which current can be individually sourced and sunk. The array includes a carrier that supports the electrodes. One or more control modules that source current to or sink current from the electrodes are disposed in recesses within the carrier. A sheet of material more flexible than the carrier is disposed between, on one side, the carrier and the control modules and, on the other side, the electrodes. Conductors over which instructions and power are applied to the control modules and conductors that extend between the control modules are the electrodes are embedded in and extend through the sheet of flexible material.02-10-2011
20100174350NOVEL MEDICAL DEVICE CONDUCTOR JUNCTIONS - A method for making an elongate medical device includes coupling a conductive fitting to an elongate conductor and providing an opening through an insulative layer in proximity to the fitting in order to expose the fitting.07-08-2010
20100305673Ink Jet Printing of Implantable Electrodes - An implantable electrode device and a corresponding method of fabricating such a device are described. An electrode network of wires and contacts is developed by inkjet deposition of conductive metal material over portions of the electrode substrate for electrically connecting an implant processor device to targeted tissue in a patient. An electrode substrate beneath the electrode network provides structural support to the electrode network. A biocompatible encapsulation layer selectively covers a portion of the electrode network and provides electrical insulation for the covered portion of the electrode network while leaving exposed portions of the electrode network which allow electrical contact with adjacent tissue.12-02-2010
20120130462Implantable Lead Comprising an Elongate Lead Body - An implantable lead including an elongate lead body and a functional lead which extends in the longitudinal direction of the lead body and enables the implementation of a medical function of the lead, wherein, in addition to the functional lead and insulated therefrom, a plurality of inductive resistance circuit elements are embedded in the lead body, which reduce a coupling of the functional lead with an external alternating magnetic field or dampen the transmission of electrical high-frequency energy along the lead.05-24-2012
20100036468FIRST TIME RIGHT PLACEMENT OF A DBS LEAD - The disclosure is directed to a deep brain stimulation (DBS) lead having a distal end for providing therapeutic electrical stimulation to tissue in a stimulation target area of a patient's brain, comprising an array of one or more stimulation elements and sensing elements located at the distal end of the lead; each of the one or more stimulation elements is capable of providing electrical stimulation to the brain tissue in the target area; and each of the one or more sensing elements is capable of detecting electrical signals produced by nerve cells within the brain; wherein after the first implantation of the lead into the brain along a trajectory that is pre-determined by non-surgical procedures, the array of stimulation and sensing elements is capable of facilitating the location of the target area and the determination for each of the stimulation elements of the required stimulation parameters needed to provide the therapeutic stimulation to the brain tissue in the stimulation target area, without requiring any additional implantations of the lead after the first implantation. A stimulation system including the DBS lead and a pulse generator is disclosed. Also disclosed is a method of providing therapeutic DBS to brain tissue using the lead.02-11-2010
20110029055SPIRAL LEAD - An implantable medical lead includes a lead body having a proximal end, a distal end, and a spiral segment between the proximal end and the distal end. The spiral segment has a center, a proximal beginning point and a distal ending point. The proximal beginning point is closer to the center than the distal ending point. The lead further includes a contact element disposed in proximity to the proximal end of the lead body and an array of electrodes disposed at the spiral shaped segment of the lead body. A conductor extends within the lead body from the contact element to an electrode of the array and electrically couples the contact element and the electrode of the array.02-03-2011
20110196460IMPLANTABLE ELEMENT AND ELECTRONIC IMPLANT - Implantable element having an elongate main body, a functional conductor which extends in the longitudinal direction of the main body or forms it, and which acts to implement a medical function of the element and has an inductive section, and magnetic flux generation means for generating a magnetic flux in the surroundings of the functional conductor, in particular of its inductive section, which are magnetically coupled to the functional conductor in such a way that the magnetic flux generated upon a current flux through the functional conductor is counteracted and the current flux density through the functional conductor is thus reduced.08-11-2011
20090062893Pancreas lead - An implant device comprising an electrode for electrical stimulation of the pancreas, the device being adapted to be inserted into the pancreas, and to change at least one of its properties after being inserted into the pancreas, so that it will cause less irritation to the pancreas than before changing said property.03-05-2009
20090005844PERCUTANEOUS ELECTRODE ARRAY AND SYSTEM - Lead devices and methods for neurostimulation are described. Some of the neurostimulation leads provided have multiple, distal region electrode contacts arranged in an array capable of providing steerable spinal cord stimulation. In one use, a collapsed introducer sheath is disposed over a dilator and advanced to a spinal cord target site through a 14-gauge needle into the epidural space. The dilator is removed and the introducer is expanded to its full width. A neurological lead according to the present invention advanced through the introducer to near the target site and the introducer removed. The lead is wider than it is high and has a row of lower electrodes flanked by right and left side electrodes in groups of three. The lower electrodes serve as cathodes and the right and left electrodes are return anodes.01-01-2009
20100100164CAPACITOR AND INDUCTOR ELEMENTS PHYSICALLY DISPOSED IN SERIES WHOSE LUMPED PARAMETERS ARE ELECTRICALLY CONNECTED IN PARALLEL TO FORM A BANDSTOP FILTER - One or more inductors and one or more capacitors are physically disposed relative to one another in series and are electrically connected to one another in parallel to form a bandstop filter. Chip inductors and chip capacitors having spaced apart conductive terminals are physically arranged in end-to-end abutting relation to minimize electrical potential between adjacent conductive terminals. The bandstop filter may be hermetically sealed within a biocompatible container for use with an implantable lead or electrode of a medical device. The values of the inductors and the capacitors are selected such that the bandstop filter is resonant at one or more selected frequencies, such as an MRI pulsed frequency.04-22-2010
20110301677ELECTRICALLY CONDUCTIVE AND MECHANICALLY SUPPORTIVE MATERIALS FOR BIOMEDICAL LEADS - An implantable medical lead connecting to a device header of a medical apparatus and having an electrode, a conductor, and a conductive polymer layer formed on at least a portion of the medical lead. An insulative sheath surrounds the conductive polymer layer for electrical insulation. The conductive polymer layer and insulative sheath maintain mechanical and electrical continuity of the lead in the event of fracture. The conductive polymer layer is composed of conductive polymers and may contain one or more dopants for improving electrical characteristics, mechanical characteristics, and processability.12-08-2011
20100262214STITCHED COMPONENTS OF AN ACTIVE IMPLANTABLE MEDICAL DEVICE - An active implantable medical device (AIMD) comprising an implantable electronics module and a tissue interface. At least one of the electronics module and the tissue interface comprises an electrically non-conductive, biocompatible and needle-piercable base having one or more biocompatible electrically conductive strands of conductive filaments stitched to the base. As used herein, stitching a conductive filament to a base refers to sewing, embroidering or otherwise securing the filament to the base through the use of hand or machine needlework.10-14-2010
20110301678LEAD HAVING REINFORCING MEMBER - An implantable medical device, such as a lead or lead extension, includes a body having a distal end portion and a proximal end portion configured to be at least partially received by an apparatus. The device further includes a conductive member at the distal end portion of the body and an electrical contact at the proximal end portion of the body. The electrical contact is electrically coupled to the conductive member and is positioned such that, when received by the apparatus, at least a portion of the apparatus is capable of electrically coupling to the electrical contact. The device further includes a reinforcement member integrated in the body. The reinforcement member: (i) may be located in the body at a location that receives a compressive force when the proximal end portion is received by the apparatus; (ii) may be non-conductive and may be in contact with the electrical contact, and may extend distally within the body from the electrical contact; or (iii) may be located in the body at a location receivable by the apparatus.12-08-2011
20110301676REDUCING RESONANT CURRENTS IN A RESONATING CIRCUIT DURING MRI SCANS - An implantable medical lead configured to reduce resonant currents in a resonating circuit during MRI scans and a method of manufacturing the same are disclosed herein. The method of manufacturing includes providing a medical lead comprising an electrical pathway from a tip electrode located at a distal end of the lead to a lead connector located at a proximal end and coupling a resonating circuit to the tip electrode such that the resonating circuit is in the electrical pathway for the tip electrode. Further, the method includes coupling a capacitive element to a proximal end of the resonating circuit. The capacitive element is configured to shunt at least part of an RF current induced on the electrical pathway into surrounding tissue or fluid and also works as a heat sink to spread the heat from the internal LC resonant circuit.12-08-2011
20110288618NEUROSTIMULATION LEAD ANCHORS - In accordance with the present inventions, anchoring devices for a lead (e.g., a neurostimulation lead) placed on solid tissue (e.g., fascia) and methods of anchoring the lead relative to the tissue are provided. Such methods may include inserting the lead into an epidural space and coupling the lead to a neurostimulation.11-24-2011
20110288620IMPLANTABLE LEAD WITH COPLANAR CONTACT COUPLING - An implantable lead for a medical device with a coplanar coupling for connecting a conductor to a contact reduces conductor bending moments to improve lead reliability. The implantable lead comprises a lead body having a proximal end and a distal end, at least one conductor, at least one contact carried on the proximal end, at least one contact carried on the distal end, and at least one coupling. The lead body has an exterior surface. The conductor is contained in the lead body and extends from the lead proximal end to the distal end. The conductor is also electrically insulated. The contact carried on the proximal end is electrically connected to the conductor. The coupling has a conductor coupling and a contact coupling. The conductor coupling is placed over the conductor and attached to the conductor. The contact coupling exits the lead body and has a weld to connect the contact coupling to the contact. The contact coupling is configured to exit the conductor lumen and mate with the contact while retaining the conductor coplanar to the lead body.11-24-2011
20110288619SYSTEM FOR PERMANENT ELECTRODE PLACEMENT UTILIZING MICROELECTRODE RECORDING METHODS - A lead stimulation/recording system is provided, which is a combination of a permanent DBS stimulating lead and a recording microelectrode. The DBS lead has a lumen extending from the proximal to the distal end of the lead, the lumen having an opening on each end of the lead. The microelectrode is configured and dimensioned to be insertable into the DBS lead from either the distal or proximal opening of the DBS lead, thereby permitting the microelectrode to be placed before, concurrently with, or after placement of the DBS lead. In addition, the system may be used with known microelectrode recording systems and methods of inserting the electrodes, such as the five-at-a-time method, the dual-microdrive method, or the single microdrive method.11-24-2011
20110295351Electrode Array for Even Neural Pressure - The present invention is an electrode array for neural stimulation. In particular it is an electrode array for use with a visual prosthesis with the electrode array suitable to be positioned on the retina. The array includes multiple attachment points to provide for even pressure across the electrode array surface. The attachment points are arranged so as to not damage retinal tissue stimulated by the electrode array.12-01-2011
20110295350APPARATUS AND METHOD FOR OPTIMIZED STIMULATION OF A NEUROLOGICAL TARGET - A preferred frequency is identified, being usable to stimulate a neurological target within a mammalian body using at least one microelectrode positioned at or near the target. To establish efficient and effective stimulation, an impedance analyzer is provided for measuring electrical impedance values indicative of a microelectrode-tissue interface across a range of different frequencies. A preferred one of the measured electrical impedance values is identified as being closest to a pure resistance. The neurological target can then be stimulated at or near the frequency associated with the preferred impedance value (peak resistance frequency), thereby promoting desirable traits, such as optimum charge transfer, minimum signal distortion, increased stimulation efficiency, and prevention of microelectrode corrosion. The peak resistance frequency can be used to determine an preferred pulse shape. A target can be identified by microelectrode measurements of neuronal activity and/or impedance magnitude at peak resistance frequency.12-01-2011
20100268310IMPLANTABLE MEDICAL ELECTRICAL STIMULATION LEAD, SUCH AS PNE LEAD, AND METHOD OF USE - An implantable medical electrode lead for stimulation of bodily tissue. The lead is adapted for use with a needle lumen diameter of not greater than 0.05 inch, and includes a lead body and a tine assembly. The lead body has a distal section forming at least one exposed electrode surface. The tine assembly includes a plurality of tines each having a base end coupled to an exterior of the lead body immediately adjacent the exposed electrode surface and a free end that is movable relative to the lead body to inhibit axial migration of the lead body upon implantation into a patient. In one embodiment, the lead body is a PNE lead and provides two electrode surfaces for bipolar operation.10-21-2010
20100211148IMPLANTABLE NEUROSTIMULATOR FOR MODULATING CARDIOVASCULAR FUNCTION - An implantable medical device includes an implantable capsule housing a circuit that delivers neurostimulation to modulate one or more cardiovascular functions. To limit displacement after implantation, a fixation device is coupled to the implantable capsule to fix the miniature implantable medical device to a position in the body of a patient. In various embodiments, the fixation device include one or more of a suture loop, a cuff to wrap around a cylindrical structure such as a nerve of a vessel, and a transmural fixation device anchoring on the interior surface of a wall defining a cavity in the body.08-19-2010
20100211147ELECTRICALLY CONDUCTING MATERIALS, LEADS, AND CABLES FOR STIMULATION ELECTRODES - One aspect is a stranded wire containing numerous coils. The stranded wire is configured as an electrical connection between an electrical stimulation device that is connected to the proximal end of the stranded wire, and an electrode connected to the distal end of the stranded wire. At least one coil includes a tantalum or niobium-based metal.08-19-2010
20100211146PHOTOELECTRIC ACTIVATION OF NEURONS USING NANOSTRUCTURED SEMICONDUCTORS - A photoelectric stimulating electrode for photoelectric activation of a neuron includes a plurality of semiconductor nanoparticles adapted to be positioned proximate a neuron. The semiconductor nanoparticles upon excitation with light of a first wave length generate an electric field and/or current effective to stimulate the neuron.08-19-2010
20100211145BIOMEDICAL ELECTRO-STIMULATOR - A power efficient biomedical electro-stimulator circuit BSC is provided. The circuit BSC includes a charging circuit arranged to control charging of a storage capacitor C based on electric energy from an energy source ES, e.g. a battery. The charging circuit includes an energy converter EC that applies a charging current I to the storage capacitor C, this charging current I being substantially constant over a charging period T, thereby providing a power efficient charging. In preferred embodiments, the energy converter EC is an inductive energy converter, e.g. a DC-DC converter, with a control circuit serving to provide an almost constant charging current during the charging period. In another embodiment, the energy converter EC is an energy converter that charges the storage capacitor via a series resonator, e.g. a series connection of an inductor and a capacitor. The proposed biomedical electro-stimulator circuit is advantageous for devices such as pacemakers, and neural stimulation etc. which can benefit of increased battery lifetime due to an efficient charging scheme.08-19-2010
20100211144LEAD CONNECTOR PIN AND BODY ASSEMBLY AND METHOD OF MANUFACTURE - An implantable medical lead is disclosed herein. In one embodiment, the lead includes a body, at least one electrode and a lead connector end. The body includes a distal portion and a proximal portion. The at least one electrode is on the distal portion. The lead connector end is on the proximal portion and includes a pin contact and a retainer assembly. The pin contact is electrically coupled to the at least one electrode and proximally extends from the lead connector end. The retainer assembly retains the pin contact as part of the lead connector end and includes a collar and a cap. The cap is secured within the collar via an interference fit arrangement and includes a hole through which the pin contact extends.08-19-2010
20100036466LEAD CONSTRUCTION WITH COMPOSITE MATERIAL SHIELD LAYER - A lead construction includes a lead body, an electrically conductive element disposed therein, and a shield layer disposed over the conductive element formed from a composite material comprising a polymer material and a non-ferrous particulate material. The non-ferrous material can include gold, platinum, iridium, nickel, cobalt, chromium, molybdenum, carbon/graphite powders, and alloys thereof. The composite material has a non-ferrous particulate content of from about 40 to 90 volume percent, and the shield layer has a thickness of from about 0.1 to 1 mm. The composite material forms an electrically conductive layer when exposed to RF having a frequency of greater than about 64 MHz. A layer of insulating material may be interposed between the shield layer and the conductive element. The shield layer can be part of the lead body, can be an intermediate layer within the lead body, or can be an outer surface of the lead body.02-11-2010
20100114279MEDICAL IMPLANTABLE LEAD - A medical implantable lead has a proximal end and a distal end, and a flexible flat elongate body. The elongate body includes a layer of strip conductors extending along the length of the flat elongate body, a top insulating layer, and a bottom insulating layer. The layer of strip conductors is sealingly enclosed between the top and bottom insulating layers, and at least a major portion of the flat elongate body is twisted into an elongate helical portion having a central cavity extending longitudinally of the helical portion.05-06-2010
20100114282IMPLANTABLE MEDICAL DEVICE CONDUCTOR INSULATION AND PROCESS FOR FORMING - An elongate medical electrical lead conductor includes a layer of hydrolytically stable polyimide formed thereover.05-06-2010
20100114280MEDICAL IMPLANTABLE LEAD AND A METHOD FOR ATTACHING THE SAME - A medical implantable lead of the type being adapted to be implanted into a human or animal body and attached with a distal end to an organ inside the body, has a helix of a helical wire in the distal end which is adapted to be screwed into the organ. In addition to the first helix, the lead also has a second helix of a helical wire, the second helix having the same diameter, the same pitch and being intertwined with the helical wire of the first helix and which, upon rotation of the first helix, will be rotated and screwed into the tissue. The first helix is electrically non-conductive whereas the second helix is electrically conductive. In a method for attaching a medical implantable lead to an organ inside a human or animal body, such a medical lead is employed and fixed to tissue in vivo.05-06-2010
20100114281MRI CONDITIONALLY SAFE LEAD EXTENSION AND METHODS - Lead extensions, systems, and methods providing MRI compatible deep brain stimulation (DBS) and spinal cord stimulation (SCS) systems are described. Lead extensions are provided having band stop filters (BSFs) which resonate at a frequency expected from MRI systems to create a very high impedance which can effectively decouple the implanted lead from the lead extension proximal of the BSF and change the effective length. Changing the effective length can reduce the likelihood of undesirably heating tissue near the DBS/SCS electrodes during MRI. Some lead extensions include BSFs in a distal connector for coupling to the lead contacts. The BSFs can be included within a burr hole cap base which can also include a connector for connecting to the DBS lead. DBS and SCS leads having a sacrificial proximal portion and intermediate electrical contacts are also provided.05-06-2010
20100114274SURFACE MODIFICATION OF IMPLANTABLE ARTICLE - An implantable elastomeric article having modified surface characteristics on at least one surface obtained by application of an acid on said at least one surface and after a predetermined treatment time removing the acid by rinsing. The treatment gives the surface an increased roughness that decreases the friction against another object. A method of modifying surface characteristics of at least one surface on an implantable elastomeric article, comprising application of an acid, followed by rinsing. A method of assembly of an implantable electrode lead made of silicone tubing and a spiral conductor, comprising treating the tubing with an acid before inserting the conductor into the tubing.05-06-2010
20100114277MRI COMPATIBLE IMPLANTABLE MEDICAL LEAD AND METHOD OF MAKING SAME - An implantable medical lead is disclosed herein. The lead may include a body and an electrical pathway. The body may include a distal portion with an electrode and a proximal portion with a lead connector end. The electrical pathway may extend between the electrode and lead connector end and may include a coiled inductor including first and second electrically conductive filar cores. The first and second filar cores may be physically joined into a unified single piece proximal terminal on a proximal end of the coiled inductor. The first and second cores may be physically joined into a unified single piece distal terminal on a distal end of the coiled inductor. The first and second filar cores may be helically wound into a coiled portion between the proximal and distal terminals, the filar cores being electrically isolated from each other in the coiled portion. The proximal terminal may be electrically coupled to a portion of the electrical pathway extending to the lead connector end, and the distal terminal may be electrically coupled to a portion of the electrical pathway extending to the electrode.05-06-2010
20100114276MRI COMPATIBLE IMPLANTABLE MEDICAL LEAD AND METHOD OF MAKING SAME - An implantable medical lead is disclosed herein. In one embodiment, the lead includes a body and an electrical pathway. The body may include a distal portion with an electrode and a proximal portion with a lead connector end. The electrical pathway may extend between the electrode and lead connector end and include a coiled inductor including a first portion and a second portion at least partially magnetically decoupled from the first portion. The first portion may include a first configuration having a first SRF. The second portion may include a second configuration different from the first configuration. The second configuration may have a second SRF different from the first SRF. For example, the first SRF may be near 64 MHz and the second SRF may be near 128 MHz.05-06-2010
20100114275IMPLANTABLE MEDICAL LEAD INCLUDING WINDING FOR IMPROVED MRI SAFETY - An implantable medical lead for coupling to an implantable pulse generator may be configured for improved MRI safety. The lead may include: a tubular body including a proximal end and a distal end; a first electrode operably coupled to the tubular body near the distal end; and a first electrical coil conductor extending distally through the body from the proximal end and electrically connected to the first electrode. The coil conductor may include at least one transition in which the coil conductor changes from being helically coiled in a first direction to being helically coiled in a second opposite direction. A method of forming such a lead may include: helically coiling at least a portion of a first electrical coil conductor by winding the coil conductor in a first direction, and winding the coil conductor in a second direction opposite the first direction so as to form a transition.05-06-2010
20110172751SYSTEMS AND METHODS FOR MAKING AND USING BENDABLE PADDLES WITH IMPLANTABLE ELECTRICAL STIMULATION SYSTEMS - An implantable paddle lead includes a paddle body coupled to a distal end of an elongated lead body. A plurality of contacts are disposed on a front surface of the paddle body. At least one manually bendable shape-retaining member is interconnected with the paddle body. The at least one shape-retaining member is formed from a deformable material that is stiff enough to maintain a given shape for at least one day. The at least one bendable shape-retaining member is interconnected with the paddle body such that bending the at least one shape-retaining member causes a corresponding bend of at least a portion of the paddle body in proximity to the at least one shape-retaining member.07-14-2011
20100268308CRANIUM PLUG - The present invention relates to a device for securing medical leads in a cranial burr hole, in particular, for securing a brain stimulation lead within such a burr hole. The device includes a circular socket element adapted to be secured within a burr hole of the skull of a patient, the circular socket element having a through lead passage arranged to have the lead pass therethrough, the lead passage including passage walls including at least one resilient partition wall extending from an inner wall of the circular socket element, and the circular socket element having at least one inner compartment delimited by the partition wall. Further, the device includes a cap element having a circular upper portion being arranged to mate with the socket element, the circular upper portion having at least one protruding member arranged to co-operate with the at least one inner compartment when placed into the compartment so as to apply a radial pressure on the at least one resilient partition wall such that a lead passing through the passage is fixated in the passage by a resulting radial pressing force.10-21-2010
20100268309Architectures for Multi-Electrode Implantable Stimulator Devices Having Minimal Numbers of Decoupling Capacitors - Architectures for implantable stimulators having N electrodes are disclosed. The architectures contains X current sources, or DACs. In a single anode/multiple cathode design, one of the electrodes is designated as the anode, and up to X of the electrodes can be designated as cathodes and independently controlled by one of the X DACs, allowing complex patient therapy and current steering between electrodes. The design uses at least X decoupling capacitors: X capacitors in the X cathode paths, or one in the anode path and X−1 in the X cathode paths. In a multiple anode/multiple cathode design having X DACs, a total of X−1 decoupling capacitors are needed. Because the number of DACs X can typically be much less than the total number of electrodes (N), these architectures minimize the number of decoupling capacitors which saves space, and ensures no DC current injection even during current steering.10-21-2010
20130218247MUSCLE STIMULATOR - An implantable medical device for treating the back of a patient. Stimulation energy is delivered to muscles or joint capsules or ligaments or nerve fibers to improve the heath of the back.08-22-2013
20110264178Probe for Neural Stimulation - A neural probe for stimulating neural tissue is disclosed. The probe comprises a three-dimensional arrangement of individually addressable electrodes. As a result, embodiments of the present invention can steer stimulative electric current through a wide range of paths through neighboring neural tissue. This enables specific targeting of neural selected neural tissue. In addition, embodiments of the present invention provide increased tolerance to probe misplacement or movement after insertion. Further, embodiments of the present invention enable changes in the neural tissue being stimulated without requiring additional surgical procedures.10-27-2011
20080243217CARDIAC STIMULATION APPARATUS - Cardiac stimulation apparatus (10-02-2008
20110196462ELECTRODE DEVICE FOR ACTIVE MEDICAL IMPLANT - An electrode device for active medical implants that includes an elongated electrode body having a proximal end and a distal end, a tip contact pole on the distal end and/or a ring contact pole before the distal end, electrical supply leads to the tip and ring contact poles, and a high-frequency filter in at least one of the supply leads, which is composed of one or more electronic components (08-11-2011
20120035698CAPACITOR AND INDUCTOR ELEMENTS PHYSICALLY DISPOSED IN SERIES WHOSE LUMPED PARAMETERS ARE ELECTRICALLY CONNECTED IN PARALLEL TO FORM A BANDSTOP FILTER - One or more inductors and one or more capacitors are physically disposed relative to one another in series and are electrically connected to one another in parallel to form a bandstop filter. Chip inductors and chip capacitors having spaced apart conductive terminals are physically arranged in end-to-end abutting relation to minimize electrical potential between adjacent conductive terminals. The bandstop filter may be hermetically sealed within a biocompatible container for use with an implantable lead or electrode of a medical device. The values of the inductors and the capacitors are selected such that the bandstop filter is resonant at one or more selected frequencies, such as an MRI pulsed frequency.02-09-2012
20120035696TERMINATION OF A SHIELD WITHIN AN IMPLANTABLE MEDICAL LEAD - A shield located within an implantable medical lead may be terminated in various ways. The shield may be terminated by butt, scarf, lap, or other joints between insulation layers surrounding the lead and an insulation extension. For lap joints, a portion of an outer insulation layer may be removed and a replacement outer insulation layer is positioned in place of the removed outer insulation layer, where the replacement layer extends beyond an inner insulation layer and the shield. The replacement layer may also lap onto a portion of the insulation extension. Barbs may be located between the replacement layer and the inner insulation layer or the insulation extension. The shield wires have ends at the termination point that may be folded over individually or may be capped with a ring located within one of the insulation layers of the jacket.02-09-2012
20120035695GROUNDING OF A SHIELD WITHIN AN IMPLANTABLE MEDICAL LEAD - Grounding of a shield that is located in an implantable medical lead may be done in many ways. The ground pathway may couple to the shield at a point that is outside of a header of an implantable medical device to which the implantable medical lead is attached. The ground pathway may couple to the shield at a point that is within the header of the implantable medical device. The ground pathway may terminate at the metal can of the implantable medical device. As another option, the ground pathway may terminate at a ground plate that is mounted to the header. The ground pathway may be direct current coupled from the shield to the can or ground plate. Alternatively, the ground pathway may include one or more capacitive couplings that provide a pathway for induced radio frequency current.02-09-2012
20120109273IMPLANTABLE LEAD ASSEMBLY HAVING A PLURALITY OF INDUCTORS - An implantable lead assembly includes an elongated body, a bobbin, and a conductor. The elongated body includes a distal end having an electrode and a proximal end having a header connector portion for coupling the elongated body with an implantable medical device. The bobbin is disposed in the elongated body. The conductor is disposed in the elongated body and is electrically coupled with the header connector portion and the electrode. The conductor is wound around the bobbin to form first and second inductive coils that are axially separated from each other by an inter-coil gap formed from the bobbin. The first and second inductive coils have different self resonant frequencies.05-03-2012
20120109272IMPLANTABLE MEDICAL DEVICE WITH COMPRESSIBLE FIXATION MEMBER - An implantable medical device and method of implanting a medical device, the device including a housing surrounding an operative component and a resiliently deformable fixation member. The fixation member includes a ring shaped annulus circumscribing the housing and a plurality of elongated struts having a proximal end affixed to the housing and a distal end affixed to the annulus. The fixation member may be comprised of a hydrogel such that it may be in a smaller, dehydrated form during implantation, and then may absorb fluid to expand to a larger, hydrated form after insertion to engage the surrounding tissue.05-03-2012
20120109271REINFORCED SILICONE INSULATION FOR IMPLANTABLE MEDICAL ELECTRICAL LEADS - An improvement to silicone insulation for implantable medical electrical leads includes a plurality of ultra high molecular weight polyethylene multi-filament fibers, wherein each of the plurality includes approximately 25 monofilaments and has a titer of approximately 25. The plurality of fibers are embedded within a wall of the insulation that has a thickness of no greater than approximately 0.008 inch. A first fiber of the plurality preferably extends helically, and a second fiber of the plurality preferably extends linearly such that the second crosses over or under and directly adjacent to the first at a plurality of points, which are spaced apart from one another along an overall length of the silicone insulation. The aforementioned wall thickness is maintained, since, at least at each crossing point of the first and second multi-filament fibers, a coincident cross-section of each of the fibers is compressed in the radial direction.05-03-2012
20110202118IMPLANTABLE LEAD WITH ISOLATED CONTACT COUPLING - An implantable lead for a medical device with an isolated contact connection for connecting a conductor to a contact reduces the opportunity for conductor material to migrate to a contact or into a patient. The implantable lead comprises a lead body having a proximal end and a distal end, at least one conductor, at least one contact carried on the proximal end, at least one contact carried on the distal end, at least one coupling. The lead has an exterior surface. The conductor is contained in the lead body and extends from the lead proximal end to the distal end. The conductor is electrically insulated. The contact carried on the proximal end is electrically connected to the conductor. The coupling has a conductor coupling and a contact coupling. The conductor coupling is placed over the conductor and attached to the conductor. The contact coupling exits the lead body and has a weld to connect the contact coupling to the contact. There is an isolation space created between the conductor and the contact to prevent the weld from containing conductor material.08-18-2011
20090012592TISSUE ANCHOR - Embodiments of the invention generally relate to an anchor used to secure a position of a device or component relative to internal tissue of a patient and prevent migration of the component relative to the tissue of the patient. In one embodiment, the anchor is combined with an electrode lead that is configured for implantation in a patient. The electrode lead comprises a lead body having a proximal end and a distal end, a stimulating electrode and an anchor. The stimulating electrode is attached to the lead body at the distal end. The anchor is positioned at the distal end of the lead body and comprises one or more protruding elements that are configured to embed within tissue of the patient.01-08-2009
20100125318COLD PLASMA BONDING OF POLYMERIC TUBING IN IMPLANTABLE MEDICAL DEVICES - Adhesiveless direct bonding between polymeric tubular members assembled with an interference fit using an oxidative cold gas plasma treatment, and implantable medical leads manufactured in part using a cold gas plasma bonding process are disclosed. An illustrative method includes subjecting a number of polymeric tubular members to an oxidative cold gas plasma, creating an oxygen rich layer on each of the tubular members. The treated surfaces of the tubular members are assembled together, forming a direct bond along an overlapping region between the tubular members when in conformal contact with each other.05-20-2010
20100125319CELL-REPELLING POLYMERIC ELECTRODE HAVING A STRUCTURED SURFACE - The embodiments herein relate to a coated electrode including a structured surface and a conductive layer and a method of making the same. The various electrode embodiments can include a surface topography that minimizes tissue attachment and thus facilitates removal of the electrode.05-20-2010
20090276023TECHNIQUES FOR PLACING MEDICAL LEADS FOR ELECTRICAL STIMULATION OF NERVE TISSUE - This disclosure is directed to extra, intra, and transvascular medical lead placement techniques for arranging medical leads and electrical stimulation and/or sensing electrodes proximate nerve tissue within a patient.11-05-2009
20090276022TECHNIQUES FOR PLACING MEDICAL LEADS FOR ELECTRICAL STIMULATION OF NERVE TISSUE - This disclosure is directed to extra, intra, and transvascular medical lead placement techniques for arranging medical leads and electrical stimulation and/or sensing electrodes proximate nerve tissue within a patient.11-05-2009
20090276020TOOLS FOR DELIVERING IMPLANTABLE MEDICAL LEADS AND METHODS OF USING AND MANUFACTURING SUCH TOOLS - Disclosed herein is a tool for implanting a medical lead. In one embodiment, the tool includes a body, an electrode, and a conductor. The body includes a distal end and a proximal end. The electrode is supported by the body. The conductor is in electrical contact with the electrode and extends along the body from the electrode to the proximal end. The electrode and conductor form an electrically conductive path that extends from a surface of the electrode to a proximal most point of the conductor on the body. The electrical resistance of the electrically conductive path is at least approximately 100 Ohms.11-05-2009
20120143297LEAD FIXATION DEVICE FOR SECURING A MEDICAL LEAD IN A HUMAN PATIENT - A lead fixation device for securing a medical lead in a human patient includes: a single-piece structure comprising: a top surface; a bottom surface; an outer perimeter; and an inner perimeter, the inner perimeter comprising: a diameter approximately equal to or smaller than a diameter of a burr hole into which the lead fixation device is designed to be deployed; a central bore extending longitudinally from the top surface through to the bottom surface, a portion of the central bore being located in approximately a center of the lead fixation device and comprising a central bore diameter; and at least one retention tract formed in the top surface of a cap of the lead fixation device, the retention tract configured for retaining, with an interference fit, a portion of a body of the medical lead in the lead fixation device.06-07-2012
20090088826ANCHORING APPARATUS AND METHODS FOR USE - An apparatus for securing an implantable lead within tissue of a patient includes a base adapted to be secured to a patient's skull adjacent a craniotomy. The base has an upper surface and a lower surface with a central passage therebetween. The central passage is adapted to receive the implantable lead therethrough. The apparatus also has a cover that is releasably coupled to the base so as to substantially cover the central passage and capture the implantable lead therebetween. A first rotating member is also coupled with the base and the first member is rotationally movable so as to meet and engage the implantable lead at a plurality of positions within the central passage.04-02-2009
20080208303IMPLANTABLE MEDICAL DEVICE SYSTEM WITH FIXATION MEMBER - A fixation device for a subcutaneous implantable medical device includes a deformable tip portion that reduces in width when coupled with a fixation tool such that implantation of the implantable medical device through tissue is facilitated. Upon release from the fixation tool, the fixation device returns to its initial shape and stably secures the position of the implantable medical device.08-28-2008
20110270369MEDICAL ELECTRICAL LEAD WITH CONDUCTIVE SLEEVE HEAD - This disclosure provides a medical lead assembly that includes a lead body having a proximal end configured to couple to an implantable medical device and a distal end. The lead assembly further includes an electrode assembly located at the distal end of the lead body, the electrode assembly including a tip electrode, a conductive electrode shaft that is electrically coupled to the tip electrode and an energy dissipating structure that is coupled to at least a portion of the conductive electrode shaft at high frequencies to redirect at least a portion of the current induced in the lead by a high frequency signal from the tip electrode to the energy dissipating structure.11-03-2011
20120271389IMPLANT TOOL AND IMPROVED ELECTRODE DESIGN FOR MINIMALLY INVASIVE PROCEDURE - Devices and methods of use for introduction and implantation of an electrode as part of a minimally invasive technique. An implantable baroreflex activation system includes a control system having an implantable housing, an electrical lead, attachable to the control system, and an electrode structure. The electrode structure is near one end of the electrical lead, and includes a monopolar electrode, a backing material having an effective surface area larger than the electrode, and a releasable pivotable interface to mate with an implant tool. The electrode is configured for implantation on an outer surface of a blood vessel and the control system is programmed to deliver a baroreflex therapy via the monopolar electrode to a baroreceptor within a wall of the blood vessel.10-25-2012
20120271386CABLE CONFIGURATIONS FOR A MEDICAL DEVICE - Techniques are disclosed related to cables that may be used within a medical device. According to one example, a cable may comprise multiple wires. Each wire may be formed of a biocompatible beta titanium alloy having an elastic modulus ranging from 30 GigaPascals (GPa) to 90 GPa and comprising at least two elements selected from a group of titanium, molybdenum, niobium, tantalum, zirconium, chromium, iron and tin. The cable may be heated to a stress-relieve temperature of the beta titanium alloy to allow the cable to retain a desired configuration while remaining ductile. The cable may be included within a medical device, such as a medical electrical lead.10-25-2012
20090276021ELECTRODES FOR STIMULATION LEADS AND METHODS OF MANUFACTURE AND USE - An electrode has a unitary ring with an exterior surface, an interior surface, and at least two edges. The electrode also includes a seat formed in at least the exterior surface of the unitary ring. The seat is configured and arranged for attachment of a terminal end of a lead wire, disposed in the seat, to the electrode. A lead includes a lead body; a plurality of electrodes disposed at the distal end of the lead body; and a plurality of lead wires. Each electrode includes a unitary ring and a seat in the unitary ring. The unitary ring has an exterior surface and an interior surface and defines a hollow center region. The seat is formed as a depression of a portion of the unitary ring. Each of the lead wires extends along the lead body and is attached to a corresponding electrode at the seat of the corresponding electrode.11-05-2009
20120271385LOW IMPEDANCE, LOW MODULUS WIRE CONFIGURATIONS FOR A MEDICAL DEVICE - Techniques are disclosed related to wires that may be used within a medical device. According to one example, a wire may include a core formed of a material having a resistivity of less than 25 micro-ohm-cm and a layer of a biocompatible beta titanium alloy surrounding the core. As one example, the beta titanium alloy has an elastic modulus ranging from 30 GigaPascals (GPa) to 90 GPa and comprises at least two elements from a group consisting of titanium, molybdenum, niobium, tantalum, zirconium, chromium, iron and tin. In one embodiment, the core may be formed of silver, tantalum, a tantalum alloy, niobium, a niobium alloy, platinum, a platinum alloy, palladium, or a palladium alloy. In some examples, one or more wires may be incorporated into a coil or a cable and one or more such coils or cables may be carried by a medical device such as a medical electrical lead.10-25-2012
20090118804METHOD OF MOUNTING MINIMALLY INVASIVE PLUG ELECTRODES WITHIN CRANIUM OF PATIENT - A method of performing a medical procedure on a patient comprises forming a burr hole through the cranium of the patient, mounting a permanently integrated plug electrode within the burr hole, and electrically coupling the plug electrode to an electronics device. Another method of performing a medical procedure on a patient comprises forming a burr hole through the cranium of the patient, mounting an electrode within the burr hole, such that the electrode does not extend within the brain of the patient, and electrically coupling the electrode to an electronics device. A hybrid plug/electrode comprises a plug body configured for being anchored within a burr hole formed within a cranium of a patient, at least one electrode disposed on a distal-facing surface of the plug body, and at least one electrode lead affixed within the plug body in electrical communication with the at least one electrode.05-07-2009
20090299443GUIDE CATHETER HAVING VASOMODULATING ELECTRODES - A guide catheter system includes a guide catheter having a proximal end, a distal end, an outer wall and a first, second and third electrode wherein the first, second and third electrodes are spaced longitudinally apart from each other on the outer wall of the catheter, and an electrical impulse generator connected to the guide catheter wherein the electrical impulse generator includes a circuit for selecting an adjacent pair of electrodes to use as a bipolar electrode system to send an electrical impulse and a method of use thereof to treat vasospasm.12-03-2009
20090118805Return Electrode for a Flexible Circuit Electrode Array - In a visual prosthesis electrodes stimulate retinal tissue to induce the perception of light to a user implanted with the prosthesis. The prosthesis must have a return, or common, electrode to make a complete circuit with the retinal tissue. To avoid stimulating tissue with the return electrode, it is advantageous if the electrode is large.05-07-2009
20100137957MEDICAL IMPLANTABLE LEAD - A medical implantable lead has a proximal end and a distal end, a biostable and biocompatible polymeric header, which is arranged at the distal end and has a first tubular portion, a helical fixation element located within the first tubular portion and being extendable from a distal end of the header, and a radiopaque ring. The header further has a second tubular portion, which is arranged coaxially of the first tubular portion and is attached to the first tubular portion at a distal end of the second tubular portion, while having a free proximal end. The tubular portions form a circumferential pocket, wherein the first tubular portion extends from the proximal end of the header at least to said distal end of the second tubular portion. The radiopaque ring is arranged around the first tubular portion and is received in the circumferential pocket.06-03-2010
20080300663NANO- AND MICRO-SCALE WIRELESS STIMULATING PROBE - Untethered micro or nanoscale probes may be dispersed within tissue to be individually addressed through external electromagnetic radiation to create local electrical currents used for direct stimulation, alteration of cellular potentials, or the release or modification of contained or attached chemical compounds.12-04-2008
20100137955CATHETER HANDLE ASSEMBLY - A catheter handle assembly (06-03-2010
20110208281RESORBABLE ANCHOR ARRANGEMENTS FOR IMPLANTABLE DEVICES AND METHODS OF MAKING AND USING - An implantable device includes a device body and at least one anchoring unit configured and arranged for anchoring the device body in a patient upon implantation. The anchoring unit includes a resorbable material that resorbs into the patient over a period of time after implantation.08-25-2011
20080281390MAGNETOSTRICTIVE ELECTRICAL STIMULATION LEADS - A medical device lead is presented. The medical device lead includes a lead body, an electrode shaft, and a tip electrode. A magnetostrictive element is coupled to the electrode shaft. The magnetostrictive element comprises either terfenol-D and/or galfenol or any material with sufficient magnetostrictive properties. The magnetostrictive element expands when exposed to magnetic resonance imaging.11-13-2008
20100298916Pelvic implanted neural electrode and method for implanting same - The implantable monopolar electrode assembly includes a base support structure including a layer made of a nickel titanium alloy having a temperature memory. The method is directed to electro-stimulation of muscles and to a method of implanting a monopolar electrode assembly. The method includes the steps of: first performing an endoscopic approach to the nerves and then selective electro stimulation by performing a neurolysis on nerve trunks until a desired target nerve fascicle and associated muscle is located, followed by insertion of the monopolar electrode assembly adjacent the target nerve fascicle for subsequent connection to a neurposthesis system.11-25-2010
20080208300Ionically conductive neural bridge - Neural bridge devices for providing ionic communication across damaged or separated portions of a neuron, or between a neuron and an electronic device, are disclosed. The neural bridge devices can include an ionically conductive polymer that may functionally replace the biological conduction of action potentials along an axon, to restore sensory or motor nerve function, and may enhance neuronal healing.08-28-2008
20080208301IMPLANTABLE NEUROSTIMULATOR ADAPTERS - An adapter for coupling a plug of an implantable neurostimulator lead extension to a connector port of a neurostimulator device includes an elongate body, a connector including at least four contacts coupled to a first end of the elongate body, and a housing including at least two ports coupled to a second end of the elongate body. The adapter connector contacts provide for electrical coupling within the device port, and the adapter housing ports are arranged to receive side-by-side connector terminals of the lead extension plug. Housing contacts within each port provide for electrical coupling with corresponding contacts of the connector terminals of the lead extension plug and are coupled to corresponding contacts of the adapter connector via conductors extending within the elongate body between the housing and the connector.08-28-2008
20100145423MEDICAL ELECTRICAL LEAD WITH INSERT-MOLDED ELECTRODE SUB-ASSEMBLY - A medical electrical lead that includes a lead body and at least one tubular electrode sub-assembly positioned over and attached to the external surface of the lead body. The lead body includes at least one elongated conductive element, such as a cable, that is electrically connected to a coiled electrode of the tubular electrode sub-assembly. The tubular electrode sub-assembly includes a tubular liner and an electrode embedded in the outer surface of the liner. In some embodiments, only a portion of the inner surface of the tubular liner is attached to the lead body which may potentially improve flexibility of the medical electrode lead in the area occupied by the tubular electrode sub-assembly.06-10-2010
20080269854IMPLANTABLE MEDICAL LEAD WITH MULTIPLE ELECTRODE CONFIGURATIONS - Medical leads having at least one segmented row of electrodes, as well as at least one ring electrode that extends substantially completely around the periphery of the lead, are described. The electrodes in a segmented row extend around only a portion of the periphery of the lead, rather than substantially around the entire periphery. The electrodes in a segmented row may be distributed at respective locations around the periphery of the lead and separated by insulating material. The ring electrodes and segmented rows are located at respective axial positions. For example, in some embodiments, a plurality of segmented rows, such as two rows having three electrodes each, are located between two ring electrodes. Such a lead may, for example, provide a variety of stimulation modalities because of localized stimulation capabilities.10-30-2008
20080269861IMPLANTABLE MEDICAL LEAD ASSEMBLIES WITH DELIVERY TETHER - Implantable lead assembly including a lead body, an elongated conductor, a coiled electrode, and a tether line. The lead body maintains the conductor. The electrode is coupled to the conductor, defining proximal and distal ends. The tether line defines a trailing segment and a leading segment terminating in a leading end. The tether line is coupled to the coiled electrode at a point proximal the distal end, and the leading end extends distal the distal end. With this configuration, a pulling force applied to the leading segment is transferred to the electrode at a point proximal the distal end as a pushing force, thereby minimizing an opportunity for overt stretching of the coiled electrode during implantation. The lead assembly can further include a needle connected to the tether line.10-30-2008
20080269858IMPLANTABLE MEDICAL LEADS WITH FLEXIBILITY AND EXTENSIBILITY, AND HAVING A SUBSTANTIALLY TWO-DIMENSIONAL NATURE - Implantable medical leads that are flexible and extensible in a controllable manner with a substantially two-dimensional profile to fit between adjacent tissue layers and to facilitate subject body movements. In particular, implantable medical leads able to permit and withstand multiple degree of freedom of movement that are useful for use in the neck region of a subject body and other regions of any subject's body that may benefit from increased flexibility and extensibility. Features of medical leads are utilized to permit extensibility and are based upon the provision of shaped features that controllably permit lead extension under low load, but that maintain a desired shape under no load. The shaped lead portions provide extensibility to the lead as the shapes elastically deform under load.10-30-2008
20080269856IMPLANTABLE MEDICAL LEADS WITH FLEXIBILITY AND EXTENSIBILITY TO FACILITATE BODY MOVEMENTS - Implantable medical leads that are flexible and extensible in a controllable manner to facilitate subject body movements, able to permit and withstand multiple degree of freedom of movement that are useful for use in the neck region of a subject body and other regions of any subject's body that may benefit from increased flexibility and extensibility. Features of medical leads are utilized to permit extensibility and are based upon the provision of shaped features that controllably permit lead extension under low load, but that maintain a desired shape under no load. The shaped lead portions provide extensibility to the lead as the shapes elastically deform under load. A shaping element, such as an elongate element or a tube defines and holds the lead in the desired shape, which may comprise one or more series of sigmoid shapes as a pattern.10-30-2008
20080269855MAGNETOSTRICTIVE ELECTRICAL STIMULATION LEADS - A medical device lead is presented. The medical device lead includes a lead body, an electrode shaft, and a tip electrode. A magnetostrictive element is coupled to the electrode shaft. The magnetostrictive element comprises either terfenol-D and/or galfenol or any material with sufficient magnetostrictive properties. The magnetostrictive element expands when exposed to magnetic resonance imaging.10-30-2008
20100137962IMPLANTABLE NEUROSTIMULATORS HAVING REDUCED POCKET STIMULATION - Neurostimulators and methods of using neurostimulators are provided. The neurostimulator is implanted within a tissue pocket of a patient, and electrical energy is conveyed from the neurostimulator to stimulate a target tissue site remote from the tissue pocket. The neurostimulator has a case with which one or more electrodes are associated. The electrical energy is returned to the electrode(s) in a manner that prevents, or at least reduces, pocket stimulation that may otherwise occur due to the return of electrical energy to the case of the neurostimulator.06-03-2010
20100137961IMPLANTABLE NEUROSTIMULATORS HAVING REDUCED POCKET STIMULATION - Neurostimulators and methods of using neurostimulators are provided. The neurostimulator is implanted within a tissue pocket of a patient, and electrical energy is conveyed from the neurostimulator to stimulate a target tissue site remote from the tissue pocket. The neurostimulator has a case with which one or more electrodes are associated. The electrical energy is returned to the electrode(s) in a manner that prevents, or at least reduces, pocket stimulation that may otherwise occur due to the return of electrical energy to the case of the neurostimulator.06-03-2010
20100137958MEDICAL ELECTRICAL LEAD WITH EMBEDDED ELECTRODE SUB-ASSEMBLY - A medical electrical lead that includes a lead body and at least one tubular electrode sub-assembly positioned over and attached to the lead body. The lead body includes at least one elongated conductive element, such as a cable, that is electrically connected to a coiled electrode of the tubular electrode sub-assembly. The tubular electrode sub-assembly includes a tubular liner and an electrode embedded in the outer surface of the liner. In some embodiments, only a portion of the inner surface of the tubular liner is attached to the lead body in order to improve flexibility of the medical electrode lead in the area occupied by the tubular electrode sub-assembly.06-03-2010
20100137956Lead adaptor having low resistance conductors and/or encapsulated housing - An implantable lead adaptor is disclosed that includes an encapsulated thermoplastic housing defining a proximal end portion and a distal end portion. The proximal end portion has a first receptacle configured to receive a first type of connector assembly associated with a first implantable cardiac lead, and a second receptacle configured to receive a second type of connector assembly associated with a second implantable cardiac lead. An elongated flexible lead portion extends from the distal end portion of the adaptor housing. A connector assembly is operatively associated with a distal end section of the flexible lead portion of the adaptor for connection to an implantable pulse-generating device, such as, for example, an implantable pacemaker or defibrillator. Low resistance conductor wires electrically connect the connector assembly associated with the distal end section of the lead portion with the first and second receptacles of the adaptor housing.06-03-2010
20100137959MEDICAL ELECTRICAL LEAD WITH BACKFILLED ELECTRODE SUB-ASSEMBLY - A medical electrical lead that includes a lead body and at least one tubular electrode sub-assembly positioned over and attached to the external surface of the lead body. The lead body includes at least one elongated conductive element, such as a cable, that is electrically connected to an electrode of the tubular electrode sub-assembly. The tubular electrode sub-assembly includes a tubular liner and an electrode embedded in the outer surface of the liner. In some embodiments, only a portion of the inner surface of the tubular liner is attached to the lead body which may potentially improve flexibility of the medical electrode lead in the area occupied by the tubular electrode sub-assembly.06-03-2010
20100145424Method for Treatment of an Intervertebral Disc - The present disclosure is directed to methods for relieving pain associated with an intervertebral disc having a disc nucleus pulposus and an outer annulus fibrosus surrounding the nucleus pulposus. The method includes the steps of providing an elongated thermal or electromagnetic probe member having a flexible guidable region adjacent the distal end thereof; introducing the flexible guidable region of the probe into the annulus fibrosus of the intervertebral disc or nucleons pulpous; and supplying thermal or electromagnetic energy, from an energy source, to heat or induce an electromagnetic field adjacent to the annulus fibrosus sufficient to produce a thermal or electromagnetic effect on the intervertebral disc. The flexible guidable region of the probe may be introduced at a location which is in relative close proximity to the region of intervertebral disc to be thermally or electromagnetically treated.06-10-2010
20120197366HIGH DIELECTRIC CONSTANT SHEATH MATERIALS FOR IMPLANTABLE MEDICAL DEVICE LEADS OR CATHETERS - A medical lead and a method of making the medical lead, the medical lead having a proximal end for electrical connection to a medical device and a distal end implantable proximate a target tissue. The lead includes a conductor and a sheath disposed over the conductor, the sheath comprising a polymer and a filler mixed in the polymer. The filler has a dielectric constant that is different from a dielectric constant of the polymer. The weight percentage of the filler in the sheath is selected such that energy induced by an external disruptive energy field in the conductor that is absorbed by the target tissue proximate the distal end of the lead is below a predetermined threshold energy.08-02-2012
20120197365ISOLATED LEAD CONDUCTOR MEASUREMENTS FOR FAULT DETECTION - This disclosure relates to a medical electrical lead having fault detection and fault isolation. The lead may include a first conductor coupled to a first electrode and a second conductor coupled to a second electrode. A capacitor is disposed within the lead and selectively coupled to the first and second conductors of the lead. The capacitor is charged in a test mode of operation after the first and second electrodes have been isolated from the conductors via an isolation mechanism and the capacitor will discharge through the first and second conductors. The capacitor discharge morphology is processed to detect lead-related conditions.08-02-2012
20120197367ANCHORS INCLUDING RIGID BODIES DEFINING FULL LENGTH SLOTS FOR USE WITH IMPLANTABLE MEDICAL LEADS - Anchors for use with implantable medical leads include an elastic body containing one or more rigid bodies that have longitudinal free edges. The longitudinal free edges run from end to end to define full length slots. Partial length slots may also be included within the one or more rigid bodies. The full length and partial length slots allow for deflection of the rigid bodies against the body of an implantable medical lead to hold the anchor in place on the lead. The full length slots allow a blade to pass through and cut a slit in the elastic body which allows the anchor to be removed from the lead.08-02-2012
20090054960IMPLANTABLE LEADS WITH TOPOGRAPHIC FEATURES FOR CELLULAR MODULATION AND RELATED METHODS - Embodiments of the invention are related to leads with topographic surface features and related methods, amongst other things. In an embodiment, the invention includes an implantable lead including a lead body having a proximal end and a distal end, the lead body including an outer layer defining a lumen, the lead body further including a first electrical conductor disposed within the lumen of the outer layer. The implantable lead can further include a first electrode coupled to the lead body, the electrode in electrical communication with the first electrical conductor. The implantable lead can also include a cellular modulation segment on the external surface of the lead body, the cellular modulation segment comprising topographic surface features configured to modulate cellular responses. Other embodiments are also included herein.02-26-2009
20090326628SYSTEM AND METHOD FOR LEAD FIXATION - A medical lead includes a pitted, grooved or threaded electrode array tip and a flexible tube or sheath encompassing the electrode array located near the lead tip. In some embodiments, the electrode array adheres to tissue, the tube or sheath adheres to the electrode array at the distal end of the electrode array or the tube or sheath adheres to tissue at the proximal end of the tube or sheath. Embodiments of the tube or sheath may be made from biodegradable material and can include electrode windows spaced along the tube or sheath corresponding to placement of electrode contacts of the electrode array.12-31-2009
20090326625LEAD INTERCONNECT USING A CAPURED FIXATION MEMBER - Methods and devices for interconnecting a medical lead conductor member and an electrode are provided. One device includes a medical lead having a shaft. The shaft has a conductor member extending therethrough and a ring electrode disposed along the shaft. The ring electrode has a fixation device disposed within the ring electrode, and the fixation device forms an interference fit with the conductor member, forming an electrical contact therebetween. Also provided are methods for forming an electrical interconnect between a ring electrode and a conductor member.12-31-2009
20090326624MULTI-MODE SWITCHED CAPACITOR DC-DC VOLTAGE CONVERTER - The disclosure describes techniques for converting an input voltage level to two or more output voltage levels using only two pump capacitors and three switching phases. The disclosure also describes techniques for selectively controlling a dc-dc converter to operate in different conversion modes. One mode may use only two pump capacitors and three switching phases to produce output voltage levels with a first set of conversion ratios. Another mode may use two pump capacitors and two switching phases to produce output voltage levels with a second set of conversion ratios. The first mode may use three different subcircuit arrangements of the pump capacitors. The second mode may use two different subcircuit arrangements of the pump capacitors. A converter may include switches and pump capacitors that can be selectively configured to transition between two or three different subcircuits, thereby producing output voltages according to different conversion ratios on a selective basis.12-31-2009
20090326623Variable 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.12-31-2009
20110224766IMPLANTABLE MEDICAL SYSTEM - This invention relates to an implantable medical system, where an implantable device including a power source operable connected to electrical components is adapted to generate electrical pulses, and a probe having a distal-end and a proximal-end. The distal-end has one or more electrodes adapted to be in electrical contact with a target tissue and wires for connecting the one or more electrodes to the implantable device. The wires conduct the electrical pulses from the implantable device to the one or more electrodes and into the target tissue. The probe has at least one capacitor and wires for connecting the at least one capacitor to the electrical components in the implantable device such that the at least one capacitor forms a part of the electrical components of the implantable device.09-15-2011
20110224765SPIRALED WIRES IN A DEEP-BRAIN STIMULATOR PROBE - The present invention regards a probe for deep brain stimulation (DBS), with high overall impedance, but low overall resistance. This is achieved since the probe comprises a structure comprising at least two interconnected spirals, wherein said two spirals have different direction of rotation. A system for deep brain stimulation comprising the probe, a power source and an electrode is also disclosed.09-15-2011
20110224764IMPLANTABLE ANCHOR FOR MEDICAL STIMULATION LEADS - In one embodiment, an anchor for anchoring a medical lead within the body of a patient, comprises: a first housing portion; a second housing portion, wherein the first and second housing portions define an inner passageway through the anchor and the inner passageway comprises first and second tapered portions at first and second ends of the inner passageway; and a gripping insert disposed within the inner passageway; wherein the first and second housing portions are adapted to be set in a first configuration and a second configuration by user manipulation; wherein in the first configuration, the inner passageway through the first and second housing portions permits the gripping insert to be retained in a first state; wherein in the second configuration, the gripping insert is compressed into a second state; wherein in the second configuration, the gripping insert is further compressed into a third state when the gripping insert is forced against one of the first and second tapered portions by movement of a medical lead placed in the anchor.09-15-2011
20090210040VARIABLE LENGTH MEDICAL ELECTRICAL STIMULATION LEAD - An apparatus and method for an electrical stimulation lead having a selectively variable length. In an embodiment of the invention, an apparatus includes a conducting element, a stimulating electrode, a pickup electrode and a sheath. The conductive element has a proximal end, a distal end and a length which is defined between the proximal and distal ends. The stimulating electrode is coupled to the distal end of the conductive element and the pickup electrode is coupled to the proximal end of the conductive element. The sheath of the apparatus is configured to enclose at least a portion of the conductive element. The sheath has a reconfigurable portion that is able to move between a first configuration and a second configuration. The sheath has a first length when in the first configuration and a second length when in the second configuration.08-20-2009
20090024195METHOD AND APPARATUS FOR RENAL NEUROMODULATION - An apparatus for renal neuromodulation includes an expandable support member having a main body portion for engaging a wall of a blood vessel proximate a renal vasculature and at least one electrode connected with the main body portion. The at least one electrode is arranged to selectively deliver electric current to a desired location where modulation of the sympathetic nervous system is effective to alter renal function. The apparatus further includes an insulative material attached to at least a portion of the main body portion for isolating blood flow through the vessel from the electric current delivered by the at least one electrode.01-22-2009
20090024196IMPLANTABLE ELECTRODE, INSERTION TOOL FOR USE THEREWITH, AND INSERTION METHOD - An electrode system includes an implantable electrode having at least one electrode contact, an insertion tool, and a technique or method that allows the electrode contact to be positioned within soft tissue at a selected target stimulation site.01-22-2009
20090198313MULTIPOLAR GUIDE WIRE AND ELECTRODE LINE - Electrode arrangement for an electrical stimulation device, having electrode line (08-06-2009
20110144731Electrode Array for Even Neural Pressure - An electrode array attached to neural tissue, such as the retina, necessarily has graded pressure exerted on the tissue, with higher pressure near the attachment point. Greater pressure improves contact between the electrodes and neural tissue while too much pressure may damage neural tissue. Hence it is advantageous to obtain equal pressure across the array field. In the present invention multiple and selective attachment points are provided on an electrode array allowing a surgeon to select the attachment points providing the best electrode tissue contact.06-16-2011
20090192577MEDICAL ELECTRICAL LEAD WITH COATED CONDUCTOR - A medical electrical lead includes a conductor having at least one layer of a parylene coating formed from a polyxylylene based polymer. The conductor can be a cable or a coiled conductor including one or more individual conductive filaments. The parylene coating may be provided over the individual conductive filaments or provided over an outer periphery of the conductor formed from the individual conductive filaments. Additionally, the parylene coating can be provided in more than one location. Lead bodies having reduced outer diameters without compromising the desired physical properties of a medical electrical lead may be constructed.07-30-2009
20090054961DRUG ELUTING COATINGS FOR A MEDICAL LEAD AND METHOD - A medical electrical lead includes a drug eluting coating provided over at least a portion of the lead body. The drug eluting coating can be provided over at least a portion of the lead body and adjacent to at least one electrode located on the lead body. The drug eluting coating can include at least one matrix polymer layer including a polymer admixed with a therapeutic agent. The therapeutic agent, for example, can be an anti-proliferative agent or an anti-inflammatory agent. The matrix polymer can include a medical adhesive. The rate of elution of the drug from the matrix polymer layer is affected by the drug to polymer ratio of the drug in the matrix polymer layer.02-26-2009
20120197368CERAMIC BUSHING WITH FILTER - One aspect relates to an electrical bushing for use in a housing of an implantable medical device. The electrical bushing includes at least one electrically insulating base body and at least one electrical conducting element. The conducting element is set up to establish, through the base body, at least one electrically conductive connection between an internal space of the housing and an external space. The conducting element is hermetically sealed with respect to the base body. The at least one conducting element includes at least one cermet.08-02-2012
20110230943IMPLANTABLE LEAD FOR AN ACTIVE MEDICAL DEVICE HAVING AN INDUCTOR DESIGN MINIMIZING EDDY CURRENT LOSSES - A shielded component or network for an active medical device (AMD) implantable lead includes an implantable lead having a length extending from a proximal end to a distal end, all external of an AMD housing, and a passive component or network disposed somewhere along the length of the implantable lead. The passive component or network including at least one inductive component having a primary magnetic field line axis. A conductive shield or housing having a primary longitudinal axis substantially surrounds the inductive component or the passive network. The inductive component's magnetic field line axis is oriented substantially orthogonally to the primary longitudinal axis of the conductive shield or housing.09-22-2011
20120078332HELICAL ELECTRODE ARRANGEMENTS FOR MEDICAL LEADS - A medical lead includes a lead body having a proximal end for electrical connection to an implantable electric signal generator and a distal end portion having a plurality of electrodes extending in a helical manner longitudinally along the distal end portion. Adjacent helical electrodes may be offset, for example, 90 degrees or 180 degrees. The helical electrodes may extend less than, greater than, or 360 degrees. The electrode arrangement provides increased surface area, improving the capability of positioning the lead against the nerve as desired.03-29-2012
20120078331SYSTEMS AND METHODS FOR MAKING AND USING ELECTRODES FOR ENHANCING STIMULATION PENETRATION OF PATIENT TISSUE - A paddle lead assembly for providing electrical stimulation of patient tissue includes a paddle body having a plurality of electrodes. At least one of the plurality of electrodes defines a removed center portion. At least one lead body is coupled to the paddle body. At least one terminal is disposed on each of the at least one lead bodies.03-29-2012
20120078330IMPLANTABLE ELECTRODE LEAD AND HYDROGEL SENSOR - An implantable electrode lead that includes a distal section having at least one electrode for transmitting electrical energy between the electrode lead and its surroundings. The electrode lead includes at least one hydrogel capsule that is thermally coupled to the electrode, the hydrogel capsule having a water-permeable wall that forms a cavity containing a hydrogel having a temperature-dependent swelling capacity, the wall of the hydrogel capsule being designed such that it can adapt to the volume of the hydrogel. Further relates to an electrode lead assembly, in the case of which a guide element is provided for guiding an electrode lead having a hydrogel capsule of this type. Further relates to a hydrogel sensor that comprises a hydrogel capsule of this type. Furthermore, at least one embodiment of the invention relates to methods used to determine the size of the hydrogel capsule for the purpose of determining the temperature of an electrode, or environment, that is thermally coupled to the hydrogel capsule.03-29-2012
20080262582IMPLANTABLE MEDICAL ELECTRICAL LEAD AND CONNECTOR ASSEMBLY - An implantable system that includes a lead and an implantable signal generator wherein the plurality of electrical contacts and the plurality of insulating regions on the lead, and the plurality of electrical connectors and the plurality of electrical insulators in the connector block are configured so that each of the plurality of electrical contacts form operable connections to the electronic circuitry through each of the plurality of electrical connector, and the insulating regions and the electrical insulators electrically isolate adjacent operable connections. Leads, and methods are also disclosed.10-23-2008
20090204192DIRECTIONAL ELECTRODE DEVICES WITH LOCATING FEATURES - Electrode devices having directional electrodes for use in deep brain stimulation or other uses. In one aspect, an electrode assembly comprises an elongate lead and a lead guide that are engageable with each other in a coaxial relationship. When the elongate lead and the lead guide are engaged with each other, the two components are rotationally fixed in relation to each other. In another aspect, an elongate lead comprises a radiologically-visible feature for indicating the orientation of the elongate lead. In yet another aspect, an electrode system is capable of determining the position and/or orientation of an electrode positioned within a body. In other aspects, methods for electrically stimulating a target site in the body are disclosed.08-13-2009
20090118806THREE-DIMENSIONAL SYSTEM OF ELECTRODE LEADS - The electrode lead system of a preferred embodiment includes a series of first electrical subsystems; a guiding element that positions the series of first electrical subsystems in a three dimensional arrangement within body tissue; a second electrical subsystem; and at least one connector that couples the first electrical subsystems to the second electrical subsystem. The electrode lead system of another preferred embodiment includes a series of electrode arrays; a guide tube that facilitates implantation of electrode arrays within body tissue and temporarily contains the series of electrode arrays; and a guiding element that provides a bias on the series of electrode arrays such that (a) when contained by the guide tube, the first electrical subsystems maintain a substantially singular path within body tissue, and (b) when not contained by the guide tube, the first electrical subsystems diverge along more than one path into a three dimensional arrangement within body tissue.05-07-2009
20130013041IMPLANT, SYSTEM AND METHOD USING IMPLANTED PASSIVE CONDUCTORS FOR ROUTING ELECTRICAL CURRENT - The present invention provides improvements to an implant, system and method using passive electrical conductors which route electrical current to either external or implanted electrical devices, to multiple target body tissues and to selective target body tissues. The passive electrical conductor extends from subcutaneous tissue located below either a surface cathodic electrode or a surface anodic electrode a) to a target tissue to route electrical signals from the target body tissue to devices external to the body; b) to implanted electrical devices to deliver electrical current to such devices, or c) to multiple target body tissues or to selective target body tissues to stimulate the target body tissues. The conductor has specialized ends for achieving such purposes.01-10-2013
20090204193DIRECTIONAL LEAD ASSEMBLY - Leads having directional electrodes thereon. Also provided are leads having directional electrodes as well as anchoring prongs to secure the electrodes to the leads. Also provided are leads with directional electrodes where all the electrodes have the same surface area. Methods of treating conditions and selectively stimulating regions of the brain such as the thalamus and cerebellum are also provided.08-13-2009
20090222073NEUROSTIMULATION LEAD WITH STIFFENED PROXIMAL ARRAY - An implantable electrical lead is provided. The electrical lead comprises an electrically insulative, flexible, elongated lead body having a proximal end and a distal end, an electrical contact carried by the distal end of the lead body, an electrical terminal carried by the proximal end of the lead body, an electrical conductor axially extending within the lead body between the electrical contact and the electrical terminal, and a stiffening tube extending within the proximal end of the lead body from a point proximal to the terminal to a point distal to the terminal and proximal to the electrode. An implantable lead assembly kit comprises the implantable electrical lead, and a connector configured for firmly receiving the proximal end of the lead body. A method of implanting the electrical lead comprises introducing the electrical lead into a patient.09-03-2009
20090240315INSULATING MEMBER FOR A MEDICAL ELECTRICAL LEAD AND METHOD FOR ASSEMBLY - A medical electrical lead that includes a lead body having a lead body lumen, an electrode head assembly fixedly engaged with the lead body and having an electrode head assembly lumen communicating with the lead body lumen, and a conductor extending within the lead body lumen and the electrode head assembly lumen. An insulating member extends through the electrode head assembly lumen and the lead body lumen to electrically isolate the conductor.09-24-2009
20090281605ENGAGEMENT TOOL FOR IMPLANTABLE MEDICAL DEVICES - Systems for adjusting a position of an implanted medical device within a patient include an engagement tool configured to couple to the implanted medical device. The engagement tool adjusts the position of the medical device when coupled to the implanted medical device. Methods of adjusting a position of an implanted medical device within a patient include locating the implanted medical device, coupling an engagement tool to the medical device, and adjusting a position of the engagement tool to adjust the position of the medical device.11-12-2009
20090248123Implantable Elongate Member - The present invention relates to a lead (10-01-2009
20090264972Flexible Circuit Electrode Array - A flexible circuit electrode array, which comprises: a polymer base layer; metal traces deposited on said polymer base layer, including electrodes suitable to stimulate neural tissue; a polymer top layer deposited on said polymer base layer and said metal traces; and a partial or entire coating of the base and top layer by a soft polymer.10-22-2009
20090259281DEVICE FOR REDUCING THE FAULT SUSCEPTIBILITY OF ELONGATED IMPLANTS - An implantable line having an elongated line body, a function conductor extending in the longitudinal direction of the line body, acting to implement a medical function of the line, whereby in addition to the function conductor, a field decoupling conductor which extends over at least a section of the length of the line body essentially parallel to the function conductor is provided, thereby reducing the coupling of the function conductor to an external field.10-15-2009
20090259280ELECTRICAL STIMULATION LEAD WITH BIOERODIBLE ANCHORS AND ANCHOR STRAPS - An apparatus includes a coupling portion, a bioerodible anchor portion and a bioerodable retainer. The coupling portion is configured to be coupled to an electrical conductor. The bioerodible retention portion is adjacent to the coupling portion and is moveable from a collapsed configuration to an expanded configuration. The bioerodible retention portion is configured to anchor the electrical conductor with respect to body tissue when the bioerodible retention portion is in its expanded configuration. The bioerodible anchor portion is formulated to erode when disposed within the body tissue at a first rate. The bioerodible retainer is coupled to the bioerodible anchor portion and is configured to inhibit movement of the bioerodible anchor portion from the collapsed configuration to the expanded configuration. The bioerodible retainer is formulated to erode when disposed within the body tissue at a second rate greater than the first rate.10-15-2009
20100168826INTRACEREBRAL PROBE AND DEVICE FOR THE TREATMENT OF NEUROLOGICAL OR PSYCHIATRIC DYSFUNCTIONS - An intracerebral probe (07-01-2010
20100161018Transcranial Securing Device for Deep Brain Stimulation Leads - A transcranial securing device for deep brain stimulation leads comprising: a principal part for securing inside an opening formed in the cranium of a patient; and at least one first securing part housed inside said principal part; said or each securing part comprises at least one axial bore adapted to allow the passage of one or more deep brain stimulation leads; said or at least one securing part is arranged so as to be capable of passing from a first position in which the lead or leads can slide axially in the respective bores, to a second position in which it grips the lead or leads in the respective bore or bores, preventing said sliding.06-24-2010
20100161020MAPPING PROBE SYSTEM FOR NEUROMUSCULAR ELECTRICAL STIMULATION APPARATUS - A monopolar neuromuscular electrical stimulation (NMES) apparatus is configured for use with a cannula and a remote electrode. The apparatus includes a longitudinally rigid rod that is movable in the cannula throughout a range of operative positions in which inner and outer end portions of the rod extend longitudinally outward from the inner and outer ends of the cannula. The apparatus further includes a single electrode configured to be supported as a solitary electrode on the inner end portion of the rod for movement with the rod through the cannula. In this manner, the electrode can be moved into and out of contact with internal test sites to apply NMES at the internal test sites in an electrical circuit with the remote electrode upon movement of the rod back and forth in the cannula. Additionally, the rod is a rigid tube and the electrode is a suction-tip electrode configured to communicate pneumatically with the rigid tube.06-24-2010
20100161019SYSTEM AND METHOD FOR ELECTRICALLY SHIELDING A MICROELECTRODE ARRAY IN A PHYSIOLOGICAL PATHWAY FROM ELECTRICAL NOISE - A system and method for electrically shielding a physiological pathway from electrical noise is disclosed. The method includes the operation of implanting at least one signal microelectrode into a patient such that the signal microelectrode is proximate to the physiological pathway. An additional operation includes substantially enclosing the microelectrode and a section of the physiological pathway with an electrical shielding wrap. The electrical shielding wrap includes a plurality of holes that enable fluid communication of physiological fluids between an inside and outside of the wrap.06-24-2010
20100179628Neurostimulator - Methods and devices of stimulating nerves are disclosed. In one embodiment adapted for stimulating excitable tissue, the invention includes drive circuitry (07-15-2010
20110202119TRANSVENOUS METHOD OF TREATING SLEEP APNEA - A system and method for treating sleep apnea includes inserting an implantable pulse generator subcutaneously within a body of a patient and connecting a lead to the pulse generator. The lead is inserted within the vasculature and advanced transvenously through the vasculature until a stimulation portion of the lead becomes positioned in close proximity to the hypoglossal nerve. A nerve-stimulation signal is applied to the hypoglossal nerve via the stimulation portion of the lead.08-18-2011
20080215125Directional stimulation of neural tissue - A multi-contact electrode for neural tissue stimulation is described. The electrode has an axis and includes a plurality of electrodes going along the axis. Each electrode ends with a contact, and at least one of the contacts has an internal edge, resulting in non-uniform electrical properties throughout the contact surface facing the tissue. Also described are methods of making an electrical contact with an internal edge, and methods and systems for characterizing internal edge.09-04-2008
20100161017APPARATUS FOR STIMULATING THE BRAIN AND MEASURING THE LIGHT INDUCED NEURONAL ACTIVITY AND METHOD FOR MANUFACTURING THE SAME - Disclosed is an apparatus for stimulating the brain and measuring the light induced neuronal activity including a signal application unit which applies a signal to a living tissue to stimulate the neuronal cells in the living tissue; an electrode unit which detects an electrophysiological signal of the neuronal cell in response to the signal; and an insulation unit which controls an impedance of the electrode unit. The signal application unit is formed integrally with the electrode unit, so that the site where the signal is applied to the living tissue is approximated to the site where the response to the stimulation is measured.06-24-2010
20120271387CANTILEVERED SPRING CONTACT FOR AN IMPLANTABLE MEDICAL DEVICE - Some examples of an electrical contact spring for an implantable medical device includes a housing, rigid and tubular in shape, defining a housing passage extending along a longitudinal axis, from a proximal portion including a proximal lip that defines a proximal opening, to a distal portion including a distal lip that defines a distal opening and a spring disposed in the housing, the spring tubular in shape and defining a spring passage concentric to the housing passage, the spring including: a distal ring portion disposed adjacent the distal portion of the housing and physically coupled to the housing, a plurality of spring elements coupled to and extending from the distal ring portion toward the proximal portion of the housing and a proximal ring portion disposed adjacent the proximal portion of the housing, cantilevered and suspended inside of and spaced apart from the housing by the plurality of spring elements.10-25-2012
20100168827DEFLECTABLE SHEATH INTRODUCER - An introducer has a shaft with a central lumen, a control handle with a deflection assembly, and a tensile member with a distal portion extending along opposing sides of within the shaft and a proximal portion extending within the control handle. The deflection assembly has a deflection arm, and a rotatable member rotationally coupled to the deflection arm, wherein the rocker member has at least one pulley engaged with the proximal tensile member portion. Rotation of the deflection arm in one direction draws the proximal tensile member portion for deflecting the shaft.07-01-2010
20100145426MEDICAL DEVICE ELECTRICAL LEAD DESIGN FOR PREVENTING TRANSMITTANCE OF UNSAFE CURRENTS TO A PATIENT - An electrical lead including a conductor assembly, an electrode, and a thermally sensitive material. The conductor assembly has one or more conductors. The electrode is in electrical communication with one of the conductors and has an outer contact adapted for contacting adjacent body tissue of a patient. The thermally sensitive material is electrically connected between the one conductor and the electrode outer contact, and is configured to exhibit high impedance in the presence of currents considered unsafe to the patient, thereby preventing the unsafe currents from flowing through the thermally sensitive material and through the electrode outer contact potentially causing the adjacent body tissue to increase in temperature to an unsafe level. The unsafe currents cause the thermally sensitive material to increase in temperature, thereby causing the material to transition to a high impedance state.06-10-2010
20110130815CONTOURED ELECTRODE CONTACT SURFACES - An electrode assembly is provided. The electrode assembly comprises a carrier member and one or more electrode contacts disposed in the carrier member, wherein a surface of at least one of the electrode contacts is contoured such that the effective surface area per area unit of the center region is larger than the effective surface area per area unit of the of the region of the surface outside the center region.06-02-2011
20100217365MEDICAL LEAD HAVING COAXIAL CONNECTOR - A medical lead includes a connector for operably coupling the lead to an active medical device. The connector includes a first tubular conductive contact having a length, a proximal end, a distal end and a lumen extending through the contact from the proximal end to the distal end. The connector also includes a second tubular conductive contact having a length, a proximal end, and a distal end. The length of the second contact is greater than the length of the first contact. The second contact is disposed in the lumen of the first contact such that the proximal and distal ends of the second contact extend beyond the proximal and distal ends of the first contact. The lead further includes first and second electrodes. The first electrode is operably coupled to the first contact, and the second electrode is operably coupled to the second contact.08-26-2010
20100228328LEAD ELECTRODE MARKING SYSTEM AND METHOD FOR DEPLOYMENT - A lead includes a lead body having at least two electrodes and a lead marker. The lead marker corresponds to a size and spacing of each of the at least two electrodes. The spacing between the electrodes and lead marker corresponds to an operative length of a first lead introducer configured to be used with the lead. Lead systems that include one or more lead introducers and kits including the same are also disclosed.09-09-2010
20100241206EMI SHIELDED CONDUIT ASSEMBLY FOR AN ACTIVE IMPLANTABLE MEDICAL DEVICE - An EMI shielded conduit assembly for an active implantable medical device (AIMD) includes an EMI shielded housing for the AIMD, a hermetic feedthrough terminal associated with the AIMD housing, and an electronic circuit board, substrate or network disposed within the AIMD housing remote from the hermetic feedthrough terminal. At least one leadwire extends from the hermetic feedthrough terminal to the remote circuit board, substrate or network. An EMI shield is conductively coupled to the AIMD housing and substantially co-extends about the leadwire in non-conductive relation thereto.09-23-2010
20120130460HYBRID IMPLANTABLE LEAD ASSEMBLY - A hybrid implantable lead assembly includes a lead body, distal, proximal, and intermediate electrodes, coiled inductive elements, and an inductive circuit. The proximal and intermediate electrodes are disposed on the lead body between the distal electrode and a proximal end of the lead body. The proximal and intermediate electrodes are electrically connected with first and second pathways to sense electrical activity and/or deliver stimulus pulses. The first and second coiled inductive elements are electrically connected to the proximal and intermediate electrodes, respectively. The inductive circuit is electrically connected to the distal electrode. The first coiled inductive element and/or the second coiled inductive element has a first type of inductor structure and the inductive circuit has a different, second type of inductor structure that prevent magnetically induced electric current from flowing to the electrodes.05-24-2012
20100145422METHOD FOR MANUFACTURING AN IMPLANTABLE ELECTRONIC DEVICE - A method of manufacturing an implantable electronic device, including: providing a silicon wafer; building a plurality of layers coupled to the wafer including an oxide layer coupled to the silicon wafer; a first reactive parylene layer coupled to the oxide layer, an electrode layer coupled to the first reactive parylene layer, and a second reactive parylene layer, coupled to the electrode layer, that chemically bonds to the first reactive polymer layer, and a second polymer layer coupled to the second reactive parylene layer; coating the plurality of layers with an encapsulation, and modifying the encapsulation and at least one of the plurality of layers to expose an electrode site in the electrode layer.06-10-2010
20100222856Band stop filter employing a capacitor and an inductor tank circuit to enhance MRI compatibility of active medical devices - A band stop filter is provided for a lead wire of an active medical device (AMD). The band stop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the lead wire of the AMD, wherein values of capacitance and inductance are selected such that the band stop filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the band stop filter to attenuate current flow through the lead wire along a range of selected frequencies. In a preferred form, the band stop filter is integrated into a TIP and/or RING electrode for an active implantable medical device.09-02-2010
20100222857Band stop filter employing a capacitor and an inductor tank circuit to enhance MRI compatibility of active medical devices - A band stop filter is provided for a lead wire of an active medical device (AMD). The band stop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the lead wire of the AMD, wherein values of capacitance and inductance are selected such that the band stop filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the band stop filter to attenuate current flow through the lead wire along a range of selected frequencies. In a preferred form, the band stop filter is integrated into a TIP and/or RING electrode for an active implantable medical device.09-02-2010
20100241204POROUS FIBER ELECTRODE COATING AND RELATED METHODS - The embodiments herein relate to an electrode having a porous coating including a fiber mesh, a multi-layer coating, and an outer coating, and a method of making the same. The various electrode coating embodiments include pores in the coating that prevent access by protein or cells while allowing for ion and/or liquid access.09-23-2010
20110112616LEAD ASSEMBLY INCLUDING A POLYMER INTERCONNECT AND METHODS RELATED THERETO - A lead assembly includes a ring component having mechanical coupling features, and at least one polymer component mechanically coupled with the mechanical coupling features of the ring component. Elongate tubing is disposed over the polymer component and is secured with the polymer component.05-12-2011
20120035697SHIELDED IMPLANTABLE MEDICAL LEAD WITH GUARDED TERMINATION - Implantable medical leads include a shield that is guarded at a termination by having a first portion and second portion of the shield, where the first portion is between a termination of the shield at the second portion and an inner insulation layer surrounding the filars. The first portion may reduce the coupling of RF energy from the termination of the shield at the second portion to the filars. The first and second portions may be part of a continuous shield, where the first and second portions are separated by an inversion of the shield. The first and second portions may instead be separate pieces. The first portion may be noninverted residing between the termination at the second portion and inner layers, or the first portion may be inverted to create first and second sub-portions. The shield termination at the second portion is between the first and second sub-portions.02-09-2012
20100222855MEDICAL IMPLANTABLE LEAD WITH FLEXIBLE SEGMENTED SLEEVE (As Amended) - A medical implantable lead, which is adapted to be attached with a distal end to tissue inside a human or animal body, has a flexible sleeve in the distal end that protrudes a distance in an axial direction from the rest of the lead. When in a desired position, a force acting in an axial direction on the flexible sleeve will bring the sleeve to be compressed in the axial direction such that the surface area of the distal end will be enlarged. The flexible sleeve is formed with axial slots from an unbroken ring segment in an outermost distal edge of the sleeve and a distance in the proximal direction such that flexible segments are formed in the sleeve, wherein a force acting in an axial direction on the flexible sleeve will bring the sleeve to be compressed in the axial direction by folding outwards of the flexible segments.09-02-2010
20130218246MRI COMPATIBLE ELECTRODE CIRCUIT - An MRI compatible electrode circuit construct is provided. The construct includes at least two filter components constructed from an electrode wire. One filter component may be a single or multiple layer resonant LC filter positioned proximate an electrode that resolves the issue of insufficient attenuation by effectively blocking the RF induced current on the wire from exiting the wire through the electrode. The second filter component may include one or more non-resonant filter(s) positioned along the length of the electrode wire that resolve(s) the issue of excessive heating of the resonant LC filter by significantly attenuating the current induced on the wire before it reaches the resonant LC filter. The resonant LC filter may also be positioned distal to the end of the non-resonant filters with the non-resonant filters proximate the electrode.08-22-2013
20100057175SYSTEMS, DEVICES, AND METHODS FOR ELECTRICALLY COUPLING TERMINALS TO ELECTRODES OF ELECTRICAL STIMULATION SYSTEMS - An implantable lead includes a first lead assembly with a distal tip and a medial end, a medial section with a first end and a second end, and a first intermediate assembly disposed between the first lead assembly and the first end of the medial section. The first lead assembly includes a plurality of external contacts and at least one conductive wire disposed in the first lead assembly. The at least one conductive wire extends from at least one external contact towards the medial end of the first lead assembly. The medial section includes a plurality of conductors extending from the first end to the second end. The first intermediate assembly includes a plurality of conductive elements. At least one of the conductive elements is configured and arranged to electrically couple the at least one conductive wire to at least one of the conductors.03-04-2010
20090182403METHODS AND APPARATUS FOR IMPLANTING ELECTRONIC IMPLANTS WITHIN THE BODY - An apparatus includes an implant delivery device configured to deliver an implant into a body. The implant delivery device includes a target member, an insertion member and an electronic circuit system. The target member has a distal end portion configured to be disposed within the body adjacent a target location. The insertion member is movably coupled to the target member. A distal end portion of the insertion member is configured to be disposed within the body and selectively coupled to the implant. The electronic circuit system is configured to produce an electronic signal in proportion to a distance between the distal end portion of the target member and the distal end portion of the insertion member when the target member and the insertion member are disposed within the body.07-16-2009
20110130817ELECTRODE ARRAY HAVING A RAIL SYSTEM AND METHODS OF MANUFACTURING THE SAME - A device for brain stimulation includes a lead having a longitudinal surface and a distal end. The lead includes a longitudinal rail disposed within the distal end of the lead. The longitudinal rail includes at least two prongs, each prong being configured and arranged to receive at least one segmented electrode. The lead further includes a plurality of segmented electrodes disposed along the longitudinal surface of the lead near the distal end of the lead. Each of the plurality of segmented electrodes is coupled to one of the at least two prongs of the rail.06-02-2011
20120143296PERCUTANEOUSLY IMPLANTABLE PADDLE-TYPE LEAD AND METHODS AND DEVICES FOR DEPLOYMENT - A percutaneously implantable paddle lead includes an elongated lead body having a proximal portion and a distal portion; a plurality of terminals disposed on the proximal portion of the lead; a flexible paddle body coupled to the distal portion of the lead; and a plurality of electrodes disposed in the paddle body and electrically coupled to the terminals on the proximal portion of the lead. The percutaneously implantable paddle lead also includes a bonding material in contact with the paddle body and holding the paddle body in a compacted form prior to, and during, insertion into a percutaneous implantation tool. The bonding material is configured and arranged to release the paddle body during or soon after implantation into a patient so that the paddle body can deploy into its paddle-like form. Alternatively, at least one current-degradable fastener can be used instead of the binding material.06-07-2012
20090112300REDUCED BENDING STIFFNESS POLYURETHANE TUBING - A medical electrical lead body having an outer diameter of less than 5 French includes a reinforcing member. The reinforcing member maintains the axial load bearing capability of the lead body while at the same time providing for flexibility of the lead body.04-30-2009
20080269859METHODS FOR CUSTOMIZING IMPLANTABLE MEDICAL LEADS AND LEAD ASSEMBLIES WITH IMPROVED FLEXIBILITY AND EXTENSIBILITY - Implantable medical leads that are customizable and that are flexible and extensible in a controllable manner to facilitate subject body movements. In particular, implantable medical leads include the ability to be customized by selective and controllable separation of lead bodies from one another, which leads are also able to permit and withstand multiple degree of freedom of movement that are useful for use in the neck region of a subject body and other regions of any subject's body that may benefit from increased flexibility and extensibility.10-30-2008
20110060395KEY LOCKING ANCHORING DEVICE FOR IMPLANTED LEAD - There is disclosed various embodiments of an implantable anchor for anchoring a medical lead within a patient. The implantable anchor includes a body having a cavity for receiving a medical lead, and a separate, removable key for insertion into the cavity. The key, upon insertion into the cavity, engages and locks the medical lead into place and prevents the movement of the medical lead with respect to the anchor.03-10-2011
20110060394MRI RF REJECTION MODULE FOR IMPLANTABLE LEAD - A high Q self-resonant inductor and method for manufacturing the same is disclosed herein for use in an implantable medical lead. The method of manufacture includes depositing a first conductive material over an elongated ceramic member and removing portions of the conductive material to leave a continuous helical metallic pattern on an elongated ceramic structure. The helical metallic pattern has a first terminal end located at a proximal end of the elongated ceramic member and a second terminal end located at a distal end of the ceramic member. The method also includes covering the helical metallic pattern with a ceramic material to form a first ceramic layer and forming vias in the ceramic material. At least one electrode is coupled to the helical metallic pattern through the vias in the ceramic material.03-10-2011
20110071604MRI-Safe Implantable Lead - A stimulation lead is configured to be implanted into a patient's body and includes at least one distal stimulation electrode and at least one conductive filer electrically coupled to the distal stimulation electrode. A jacket is provided for housing the conductive filer and providing a path distributed along at least a portion of the length of the lead for conducting induced RF energy from the filer to the patient's body.03-24-2011
20100174349SYSTEM FOR TERMINATING ABANDONED IMPLANTED LEADS TO MINIMIZE HEATING IN HIGH POWER ELECTROMAGNETIC FIELD ENVIRONMENTS - An energy management system facilitates the transfer of high frequency energy coupled into an implanted abandoned lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted abandoned lead to the energy dissipating surface of an abandoned lead cap through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted abandoned lead's impedance characteristics.07-08-2010
20100305672TIP ASSEMBLY FOR MEDICAL ELECTRICAL LEAD - An implantable lead may include a coupler, a fixation helix secured to the coupler and a guide element that includes an engaging surface and a proximal bearing surface. The engaging surface may be configured to engage the fixation helix such that the engaging surface of the guide element interacts with the fixation helix to cause the fixation helix to translate longitudinally when the fixation helix is rotated against the engaging surface. Longitudinal translation of the coupler and fixation helix may be limited by the distal end of the coupler contacting the proximal bearing surface of the guide element.12-02-2010
20130138186FEEDTHROUGH ASSEMBLY INCLUDING CAPACITOR ARRAY ON PRINTED BOARD - A feedthrough assembly may include a ferrule defining a ferrule opening, a feedthrough at least partially disposed within the ferrule opening and attached to the feedthrough, and a capacitor array. In some examples, the feedthrough may include a plurality of feedthrough conductive pathways extending between an externally-facing side of the feedthrough and an internally-facing side of the feedthrough. Additionally, the capacitor array may include a printed board and a plurality of capacitors disposed on the printed board. In some examples, respective ones of the plurality of feedthrough conductive pathways are electrically connected to respective ones of the plurality of capacitors.05-30-2013
20130138187FEEDTHROUGH ASSEMBLY INCLUDING CHIP CAPACITORS - A feedthrough assembly may include a ferrule defining a ferrule opening, a feedthrough at least partially disposed within the ferrule opening and attached to the ferrule, and a plurality of chip capacitors. In some examples, the feedthrough may include a plurality of feedthrough conductive pathways extending between an externally-facing side of the feedthrough and an internally-facing side of the feedthrough. In some examples, respective ones of the plurality of chip capacitors are electrically connected to respective ones of the plurality of feedthrough conductive pathways and electrically connected to the ferrule.05-30-2013
20130138188IMPLANTABLE MEDICAL LEADS HAVING OSCILLATING CABLE CONDUCTOR LUMENS - An electrical implantable lead includes an elongated lead body having a plurality of lumens therein, including at least one linear lumen and at least one planar, non-linear lumen and a plurality of conductor cables disposed within the plurality of lumens. The electrical implantable lead further includes a terminal connector coupled to a proximal end of the lead body, the terminal connector being in electrical communication with at least one of the plurality of conductor cables. Further, the electrical implantable lead includes at least one electrode coupled to the lead body, the at least one electrode in electrical communication with at least one of the plurality of conductor cables. In accordance with various embodiments, the at least one non-linear lumen extends longitudinally along a portion of the lead body and includes a plurality or crests and a plurality of troughs.05-30-2013
20130138189HIGH-RESOLUTION CONNECTOR FOR A NEUROSTIMULATION LEAD - An implantable connector comprises an electrically insulative housing including an outer wall, an interior cavity surrounded by the outer wall, a port through which the lead body portion can be introduced into the interior cavity, and a pair of first apertures disposed through the outer wall on a first side of the housing. The connector further comprises an electrical spring clip contact mounted to the housing. The contact includes a common portion and a pair of legs extending from opposite ends of the common portion. The legs respectively extend through the first apertures into the interior cavity, such that the legs firmly engage the electrical terminal therebetween when the lead body portion is introduced into the interior cavity.05-30-2013
20130138190METHODS AND APPARATUS FOR IMPLANTING ELECTRONIC IMPLANTS WITHIN THE BODY - An apparatus includes an implant delivery device configured to deliver an implant into a body. The implant delivery device includes a target member, an insertion member and an electronic circuit system. The target member has a distal end portion configured to be disposed within the body adjacent a target location. The insertion member is movably coupled to the target member. A distal end portion of the insertion member is configured to be disposed within the body and selectively coupled to the implant. The electronic circuit system is configured to produce an electronic signal in proportion to a distance between the distal end portion of the target member and the distal end portion of the insertion member when the target member and the insertion member are disposed within the body.05-30-2013
20110029053Modular electrode and insertion tool - Disclosed is a modular system for providing electrical stimulation to a patient's body, in which a first modular electrode section has a contoured back end configured to engage with a contoured front end of another electrode section or a tool that may be used to place the first modular electrode section in the patient's body. The contours of the back end of the first modular electrode section and of the front end of the second electrode section or tool allow the two components to engage with one another so as to prevent their separation in the horizontal plane (i.e., the plane that contains the top surfaces of the two components). Additionally, in order to prohibit both the lateral and vertical separation of the two components, a lead extending from the first modular electrode is configured to engage keels on the top surface of the second electrode portion or tool, with such keels providing a snap-type attachment between the lead and the second electrode portion or tool, such that the two components may be joined together but easily separated from one another through the intentional separation of the lead from the keels on the second electrode portion or tool. With this construction, a surgeon may ensure that the two components remain connected to one another through the implantation process, and may likewise separate the components if and when desired to accommodate a particular application or clinical condition.02-03-2011
20100331934MULTI-ELEMENT CONTACT ASSEMBLIES FOR ELECTRICAL STIMULATION SYSTEMS AND SYSTEMS AND METHODS OF MAKING AND USING - An implantable lead includes a lead body having a plurality of electrodes disposed on a distal end of the lead body, a plurality of terminals disposed on a proximal end of the lead body, and a plurality of conductors disposed along the lead body such that each conductor electrically couples at least one of the electrodes to at least one of the terminals. At least one of the electrodes or terminals includes a multi-element contact assembly. The multi-element contact assembly includes at least one conductive inner element and at least one conductive outer element disposed over the inner element. At least one of the plurality of conductors is electrically coupled to one of the multi-element contact assemblies such that the conductor is positioned against the at least one inner element. The at least one outer element includes a region that is in contact with the at least one inner element.12-30-2010
20100331935Rigid Spine Reinforced Polymer Microelectrode Array Probe and Method of Fabrication - A rigid spine-reinforced microelectrode array probe and fabrication method. The probe includes a flexible elongated probe body with conductive lines enclosed within a polymeric material. The conductive lines connect microelectrodes found near an insertion end of the probe to respective leads at a connector end of the probe. The probe also includes a rigid spine, such as made from titanium, fixedly attached to the probe body to structurally reinforce the probe body and enable the typically flexible probe body to penetrate and be inserted into tissue, such as neural tissue. By attaching or otherwise fabricating the rigid spine to connect to only an insertion section of the probe body, an integrally connected cable section of the probe body may remain flexible.12-30-2010
20100331937ACTIVE FIXATION LEAD WITH HELIX SECUREMENT MECHANISM - An implantable lead may have a distal assembly including a coupler and a fixation helix secured to the coupler. The coupler may include a helical groove that is configured to accommodate the fixation helix. The helical groove may facilitate attaching the fixation helix to the coupler by threading the fixation helix into the helical groove. A weld may provide a secondary attachment between the fixation helix and the coupler.12-30-2010
20090143845NOTCHED ELECTRODE FOR ELECTROSTIMULATION LEAD - According to one embodiment, an electrode for use in electrostimulation is provided, where the electrode comprises a notch that operates to substantially eliminate gaseous material from being trapped about the electrode during a molding process of an electrostimulation lead.06-04-2009
20110034982MEDICAL IMPLANTABLE LEAD AND METHOD FOR CONNECTING A MEDICAL IMPLANTABLE LEAD TO AN ORGAN - In a medical implantable lead of the type adapted to be implanted into a human or animal body for monitoring and/or controlling of an organ inside the body and a method for connecting such a lead to an organ in the human or animal body, lead a fixation arrangement at a distal end of the lead is adapted to penetrate into the tissue of the organ to fixate the lead to the organ, and an electrode member is provided to receive and/or transmit electrical signals from or to the organ. The electrode member is resiliently pre-strained toward the distal end of the lead and is provided with an electrode surface such that the electrode surface will resiliently abut toward the outer surface of the organ when the fixation arrangement is fixed to the tissue.02-10-2011
20110009935Reinforced Suture Sleeve - A reinforced suture sleeve designed to cover and protect a medical lead from physical damage resulting from an over tightened suture is described. The reinforced suture sleeve comprises a metallic tubular insert with at least one slot that cut through the surface of the insert in a spiraled pattern. A biocompatible and pliable polymeric body is molded over the insert. The spiraled cut slot in the metallic tubular insert provides flexibility without degrading structural integrity. An alternate embodiment comprises a polymeric body provided with an embedded fiber mesh made of polymeric fibers, metallic fibers or combinations thereof. The fiber mesh which an over tightened suture from cutting through the suture sleeve and damaging the medical lead.01-13-2011
20110029054METHOD FOR FABRICATING A STIMULATION LEAD TO REDUCE MRI HEATING AND A STIMULATION LEAD FOR USE WITHIN MRI SYSTEMS - In one embodiment, a stimulation lead comprises: a lead body of insulative material surrounding a plurality of conductors; a plurality of electrodes; and a plurality of terminals, the plurality of terminals electrically coupled to the plurality of electrodes through the plurality of conductors; wherein each conductor of the plurality of conductors is helically wound about an axis within the lead body in at least an outer portion and an inner portion relative to the axis, the outer portion comprises a first winding pitch and the inner portion comprises a second winding pitch, the second winding pitch is less than the first winding pitch, the inner portion of each respective conductor being disposed interior to the outer portions of other conductors of the plurality of conductors; wherein an impedance of each conductor of the plurality of conductors substantially reduces MRI-induced current when the stimulation lead is present in an MRI system.02-03-2011
20110029052LEAD SPLITTER FOR AN ELECTRICAL STIMULATION SYSTEM AND SYSTEMS AND METHODS FOR MAKING AND USING - A splitter for an electrical stimulation system includes a junction having a proximal end and a distal end. An elongated proximal member extends from the proximal end of the junction. The proximal member includes a plurality of terminals disposed on a proximal end of the proximal member. A plurality of elongated distal members extend from the distal end of the junction. Each distal member includes a connector disposed on a distal end of the distal member. The connector is configured and arranged for receiving a lead or lead extension. One of the distal members is longitudinally aligned with the proximal member and at least another one of the distal members is longitudinally offset from the proximal member. A plurality of conductors couple the terminals of the proximal member to the connectors of the distal members.02-03-2011
20110040362Methods of Treating the Sacroiliac Region of a Patient's Body - Methods of treating the sacroiliac region of a patient's body by delivering energy are described. In some embodiments, the method comprises the steps of: inserting at least one probe into the sacroiliac region, the probe comprising at least one energy delivery device: positioning the at least one energy delivery device adjacent material to be treated; and delivering energy through the at least one energy delivery device to create a longitudinal strip lesion; wherein the at least one energy delivery device remains in a substantially static position during creation of the strip lesion. In some embodiments, energy may be delivered to treat at least two branches of the sacral nerves or to create an intra-articular lesion.02-17-2011
20110112614FIBER REINFORCED SILICONE FOR CARDIAC AND NEUROSTIMULATION LEADS - A least a portion of a lead body includes a fiber reinforced silicone elastomer. The fiber reinforced silicone elastomer comprises a uniform dispersion of discrete fibers having a random orientation. The fiber reinforced silicone elastomer may demonstrate an improvement in mechanical properties such as, for example, stiffness and strength, when compared to an analogous non-reinforced silicone elastomer. As a result, lead bodies having reduced outer diameters may be fabricated without a decrease in the overall mechanical strength and stiffness of the material.05-12-2011
20110112615Lead Electrode for Use in an MRI-Safe Implantable Medical Device - 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.05-12-2011
20100145425ELECTRODE FOR STIMULATING CRANIAL NERVES AND SUBSTRATE COMPRISING THE SAME - An electrode for stimulating cranial nerves comprising a glass fiber having first and second holes, and a metal wire disposed in the first hole.06-10-2010
20100137963METHOD FOR FABRICATION OF LOW-POLARIZATION IMPLANTABLE STIMULATION ELECTRODE - A method for fabricating an implantable medical electrode includes roughening the electrode substrate, applying an adhesion layer, and depositing a valve metal oxide coating over the adhesion layer under conditions optimized to minimize electrode impedance and post-pulse polarization. The electrode substrate may be a variety of electrode metals or alloys including titanium, platinum, platinum-iridium, or niobium. The adhesion layer may be formed of titanium or zirconium. The valve metal oxide coating is a ruthenium oxide coating sputtered onto the adhesion layer under controlled target power, sputtering pressure, and sputter gas ratio setting optimized to minimize electrode impedance and post-pulse polarization.06-03-2010
20110087316Implantable Interface for a Medical Device System - An implantable interface system for a medical device system providing selective interconnectivity between conduits and therapy elements. The interface system contains connecting elements that each provide a robust connection between a selected conduit and a selected therapy element. The interface system enables the use of a surplus of therapy elements so that treatment to the same site (in the case of electrode migration or failure), or to different sites but within the spatial domain of the interface's elements may be delivered through the spare/excess therapy elements without the need for additional major surgical procedures.04-14-2011
20120172960SU-8 MICRONEEDLES FOR MONITORING AND STIMULATING NEURONS - An SU-8 microneedle for monitoring and stimulating neurons, has a thickness less than 100 micrometers and a length of 50 micrometers to 10 centimeters. A manufacturing method allows removing the microneedle from the substrate without using mechanical devices due to the initial coating of a rigid substrate with an aluminium layer as a sacrificial layer and the final chemical etching of the aluminium layer for chemically removing the microneedle obtained in known intermediate photolithographic manufacturing steps.07-05-2012
20090326627DEVICES WITH CANNULA AND ELECTRODE LEAD FOR BRAIN STIMULATION AND METHODS OF USE AND MANUFACTURE - A device for brain stimulation includes a cannula configured and arranged for insertion into a brain of a patient; at least one cannula electrode disposed on the cannula; and an electrode lead for insertion into the cannula, the electrode lead comprising at least one stimulating electrode.12-31-2009
20100023100CAM LOCK BURR HOLE PLUG FOR SECURING STIMULATION LEAD - A burr hole plug comprises a plug base configured for being mounted around a cranial burr hole. The plug base includes an aperture through which an elongated medical device exiting the burr hole may pass. The burr hole plug further comprises a retainer configured for being mounted within the aperture of the plug base. The retainer includes a retainer support, a slot formed in the retainer support for receiving the medical device, and a clamping mechanism having a movable clamping element and a cam configured for being rotated relative to the retainer support to linearly translate the movable clamping element into the slot, thereby securing the medical device. The retainer further comprises another clamping mechanism having another movable clamping element and another cam configured for being rotated relative to the retainer support to linearly translate the other movable clamping element, thereby laterally securing the retainer within the plug base.01-28-2010
20120245663IMPLANTABLE MEDICAL DEVICE HAVING AN ADHESIVE SURFACE PORTION - An implantable medical device includes an adhesive surface portion provided over or formed on an outer surface thereof. The adhesive surface portion is capable of bonding to body tissue to secure and fixate the implantable medical device at a desired implantation location within the patient's body. The adhesive surface portion can be used in combination with other fixation mechanisms to secure and fixate the implantable medical device at the desired implantation location.09-27-2012
20090048652MEDICAL DEVICE HAVING PLASMA POLYMERIZED COATING AND METHOD THEREFOR - A medical device having at least one plasma polymerized coating allowing for a first component to be coupled with a second component.02-19-2009
20090326626STIMULATION LEAD DESIGN AND METHOD OF MANUFACTURE - The invention is an implantable electrical stimulation lead for chronic or long term use that has an improved electrical connection between the electrode and conductor. This is accomplished through the use of metal coils embedded in the sidewall of the lead body. A wire conductor providing electrical continuity from a proximal electrode to a distal electrode has a protruding portion extending through the sidewall. This protruding portion can reside adjacent to either a proximal or a distal electrode. In any event, the protruding portion of the lire is captured underneath a ring electrode that is physically deformed into direct contact with the metal of the wire, preferably by swaging. This serve to make electrical conductivity between the wire and the electrode with the embedded coil serving a s support during the swaging process.12-31-2009
20100063568IMPLANTABLE ELECTRODE ARRAY ASSEMBLY WITH EXTRACTION SLEEVE/TETHER - An implantable electrode array including a carrier on which plural electrodes are disposed. Also disposed on the carrier is an array antenna over which signals are wirelessly received. A tether is connected to the carrier. A tether antenna is attached to the tether. After the electrode array is implanted, during a trial period instructions and power are transmitted to the array antenna over the tether antenna. If the trial is successful, the tether is disconnected from the electrode array. If the trial is not successful and extraction of the array is necessary, extraction is accomplished by pulling on the tether. Electrode array removal may be facilitated by the pulling of the array into an extraction tube disposed over the tether.03-11-2010
20100070007KNITTED ELECTRODE ASSEMBLY AND INTEGRATED CONNECTOR FOR AN ACTIVE IMPLANTABLE MEDICAL DEVICE - An active implantable medical device (AIMD). The AIMD comprises: a knitted electrode assembly comprising: at least one biocompatible, electrically non-conductive filament arranged in substantially parallel rows each stitched to an adjacent row, and at least one biocompatible, electrically conductive filament having a first end intertwined with a first row of the at least one non-conductive filament, and a second end intertwined with a second row of the at least one non-conductive filament, wherein the first and second rows are spaced from one another.03-18-2010
20100131036IMPLANTABLE ELECTRODE LINE - A device for fastening permanently or temporarily implantable medical devices includes a main body (05-27-2010
20110160820VARIABLE STIFFNESS MULTI-LUMEN LEAD BODY FOR AN IMPANTABLE LEAD - A multi-lumen lead body having a smooth transition between regions of varying stiffness on the lead body is described. In one example, the different regions of the lead body can be formed by altering a mix ratio of the different polymers used to form the lead body during the extrusion process. In another example, two or more layers of polymeric materials are co-extruded, and the cross-sectional thicknesses of each of the layers varied in the different regions of the lead body to achieve different stiffnesses. In yet another example, the internal geometry of the lead body is altered during the extrusion process to alter the physical properties of the lead body in a select region of the lead body. In still yet another example, a transition member is provided between regions of varying stiffness to facilitate a smooth transition between the different regions.06-30-2011
20120035694GROUNDING OF A SHIELD WITHIN AN IMPLANTABLE MEDICAL LEAD - Grounding of a shield that is located in an implantable medical lead may be done in many ways. The shield may be grounded directly to tissue from the lead body at one or more points along the lead body. The pathway for grounding may be a direct current pathway or be capacitively coupled. The pathway for grounding may utilize an exposed or nearly exposed shield at one or more points along the lead body. A jacket forming the lead body may have an outer layer removed at these points to provide the RF pathway to ground. Alternatively, the jacket may be doped with conductive particles at these points. Metal conductors such as ring electrodes and/or lead anchors may be attached to the lead at one or more points to provide the RF pathway to ground.02-09-2012
20110082529IMPLANTABLE CONNECTION DEVICE - The invention relates to an implantable connection device (04-07-2011
20110082530Method and Apparatus for Implantable Lead - In one embodiment of the invention, an implantable lead is provided. It has a plurality of satellites along its length, each satellite having at least one electrode and having as many as four electrodes at each satellite. Each satellite has a chip which controls the manner in which electrodes are or are not connected with a conductor within the lead. In an embodiment a control signal is transmitted through the connector of the first and along the at least one conductor to the chips of the satellites, thereby configuring at each chip a respective impedance between the at least one conductor and the respective at least one electrode. Sub-sequently, a pacing current is passed through the connector of the first lead and along the at least one conductor, and at each chip passing a portion of the pacing current through the respective impedance to the respective at least one electrode.04-07-2011
20120035692IMPLANTABLE MEDICAL ANCHOR - There is disclosed various embodiments of an implantable anchor for permanently anchoring a medical lead or catheter. For instance, there is disclosed an implantable anchor including a body having a longitudinal lumen defined therein, wherein the longitudinal lumen is sized to accept a portion of the medical lead or catheter, a bending mechanism coupled to the body for bending the lead to a predetermined angle within the body, and a retaining mechanism for maintaining the predetermined angle of the bent lead within the body.02-09-2012
20120035691SYSTEM AND METHOD FOR SECURING A LEAD IN A VESSEL - A two-part system for securing and stabilizing a lead at a location within a patient's internal jugular vein adjacent a region of the vagus nerve to be stimulated is described. The two-part system includes a lead and a stent-like fixation member that is provided separate from the lead. The stent-like fixation member is used to secure an electrode region of the lead at a location within the internal jugular vein adjacent the vagus nerve. The stent-like fixation member urges the electrode region of the lead against the vessel walls of the internal jugular vein such that at least one electrode is oriented in a direction towards the vagus nerve. In one example, the stent-like fixation member includes a channel sized to receive and retain a portion of the lead therein.02-09-2012
20110077725MEDICAL ELECTRICAL LEAD - An implantable lead for placement by means of a guide wire passing therethrough. The lead has an elongated insulative lead body with an axially extending lumen through at least a distal portion of the lead body. A conductor is mounted within and extends to an electrode assembly mounted to a distal portion of the lead body. A seal housing with a seal located therein located at a distal end of the lead body. The seal is located generally perpendicular to the axis of the lead body and is concave on both its proximal and distal sides. The housing is provided with a cavity adjacent each of the seal's proximal and distal sides, into which the seal may be deflected. The electrode assembly may be mounted to the seal housing.03-31-2011
20110071605MRI-Safe Implantable Medical Device - A medical lead is provided for use in a pulse stimulation system of the type which includes a pulse generator for producing electrical stimulation therapy. The lead comprises an elongate insulating body and at least one electrical conductor within the insulating body. The conductor has a proximal end configured to be electrically coupled to the pulse generator and has a DC resistance in the range of 375-2000 ohms. At least one distal electrode is coupled to the conductor.03-24-2011
20090018630SELF-EXPANDABLE EPIDURAL CORTICAL ELECTRODE - A self-expandable epidural cortical electrode includes an electrically conductive expandable body and a connecting lead extending from the body. The body has an insulating layer on a first side and at least one region on a second side without an insulating layer. The connecting lead is adapted and configured for electrical communication with a control unit for providing power to the body electrical cortical stimulation.01-15-2009
20120203316LEADS WITH SEGMENTED ELECTRODES FOR ELECTRICAL STIMULATION OF PLANAR REGIONS AND METHODS OF MAKING AND USING - One embodiment is a stimulation lead that includes a lead body having 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 electrodes include multiple groups of segmented electrodes with each group of segmented electrodes having multiple segmented electrodes disposed at a same longitudinal position along the lead. For at least one first group of segmented electrodes, a first pair of the segmented electrodes in the first group are disposed on opposite sides of the lead body and are electrically ganged together by a conductor therebetween.08-09-2012
20110046706SYSTEMS AND METHODS FOR DISPOSING ONE OR MORE LAYERS OF MATERIAL BETWEEN LEAD CONDUCTOR SEGMENTS OF ELECTRICAL STIMULATION SYSTEMS - An implantable lead includes a lead body having a plurality of electrodes disposed on a distal end, a plurality of terminals disposed on a proximal end, and a plurality of conductors, each conductor electrically coupling at least one of the electrodes to at least one of the terminals. At least one of the conductors includes at least one unit having a multi-layer region of overlapping conductor segments. The unit including a first conductor segment extending from a beginning point to a first position, a second conductor segment extending from the first position to a second position, and a third conductor segment extending from the second position to an endpoint. The first position is between the second position and the endpoint. The second position is between the beginning point and the first position. An interlayer material is disposed between the overlapping conductor segments of the at least one multi-layer region.02-24-2011
20120303107System for Medical Stimulation Comprising a Probe - The invention relates a system (11-29-2012
20120303106PADDLE LEAD CONFIGURATIONS FOR ELECTRICAL STIMULATION SYSTEMS AND METHODS OF MAKING AND USING - A paddle lead includes a paddle body with a plurality of electrodes disposed on the paddle body. The plurality of electrodes includes a first electrode and a second electrode. The first electrode and the second electrode are disposed laterally around the circumference of the paddle body. At least one connecting wire is disposed on, or within, the paddle body to electrically couple the first electrode and the second electrode.11-29-2012
20120303105ELECTRODE STRUCTURE FOR IMPLANTABLE MEDICAL DEVICE - An IMD may include a liquid crystal polymer (LCP) outer housing defining an outer surface of the IMD, an electrical feedthrough extending through the LCP outer housing to the outer surface, and an electrode structure disposed on the outer surface. The electrode structure may include a LCP substrate defining a first major surface and a second major surface substantially opposite the first major surface, a contact pad disposed on the first major surface, and an electrode disposed on the second major surface. The LCP substrate may be attached to the LCP outer housing and the contact pad may be electrically coupled to the electrical feedthrough.11-29-2012
20110034981Apparatus for Securing a Therapy Delivery Device Within a Burr Hole and Method for Making Same - Apparatus for securing a therapy delivery device relative to a burr hole and method for making same. In one embodiment, the apparatus includes a base for seating in or near the burr hole. The apparatus may further include a stabilizer that may be engaged with the therapy delivery device. The stabilizer may include a surface coating or treatment operable to enhance frictional engagement with the therapy delivery device.02-10-2011
20110034978SYSTEMS AND METHODS FOR COUPLING COILED CONDUCTORS TO CONDUCTIVE CONTACTS OF AN ELECTRICAL STIMULATION SYSTEM - An implantable lead includes an elongated member. A plurality of electrodes are disposed on a distal end of the elongated member. A plurality of terminals are disposed on a proximal end of the elongated member. Each of a plurality of conductors electrically couples at least one of the electrodes to at least one of the terminals. The plurality of conductors are disposed in the elongated member in a coiled configuration and have an end portion. Each of a plurality of constraining elements is disposed over at least one of the plurality of conductors such that the underlying at least one of the plurality of conductors is maintained in the coiled configuration. At least one of the plurality of electrodes or terminals is disposed over the constraining element and electrically coupled to at least one of the plurality of conductors.02-10-2011
20110034980POLYMER COMPRESSION JOINING IN IMPLANTABLE LEAD - Implantable medical leads and methods of forming such leads are disclosed. An implantable medical lead includes a lead body, a swage base coupled to the lead body, and a polymeric member interposed at least in part between the swage base and at least one rigid component of the lead such as an electrode or annular ring. The swage base includes an annular-shaped body including a flange having a number of protrusions that extend radially outward from the flange. During a swaging process, the protrusions on the flange are compressed against the polymeric member, forming a number of channels in the member that mechanically bond the member to the swage base.02-10-2011
20110009933PIGGY-BACK PERCUTANEOUS LEAD INSERTION KIT - A kit includes a coupling member and an insertion needle. The coupling member defines at least one lumen extending through the coupling member that is configured and arranged to receive a portion of one or more lead bodies. The insertion needle includes a tubular member that defines a lumen that is optionally configured and arranged to receive a portion of two or more lead bodies that are coupled by a coupling member. A method of implanting a lead comprises coupling together a portion of two or more leads using a coupling member, disposing at least a portion of the two or more leads coupled by the coupling member into a tubular member of an insertion needle, inserting at least the distal end of the tubular member into a tissue of a patient, and advancing the two or more leads coupled by the coupling member distally through the tubular member and into the tissue.01-13-2011
20110009936INTERNAL PADDLE ELECTRODE - An internal paddle electrode includes: an electrode which is to be in contact with a living body to apply a voltage; a cable which includes a voltage supply path that extends between a voltage supply source and the electrode; a handle which includes: a first portion that supports the electrode and is hermetically sealed with the electrode; and a second portion that is connected to the cable and is hermetically sealed with the cable; and a gas passage through which a gas in the handle communicates with external air that is outside the handle.01-13-2011
20110009934IMPLANTABLE MEDICAL LEAD HAVING PASSIVE LOCK MECHANICAL BODY TERMINATIONS - Disclosed herein is an implantable medical lead configured to receive a stylet. The lead may include a tubular body and a structure. The tubular body may include a distal end and a proximal end. The body may be configured to receive the stylet. The structure longitudinally may extend through the body between the distal end and the proximal end. The structure may be anchored within the body such that a tensile force arising within the body by the stylet being extended through the body causes the tensile force to be substantially carried by the structure.01-13-2011
20100331938IMPLANTABLE MEDICAL DEVICE LEAD - An implantable lead including a lead body including an outer surface, a proximal end, a distal end, and at least one electrode; an electrically insulating member that extends axially over a first portion of the outer surface of the lead body between the proximal end and distal end, the electrically insulating member defining at least one aperture that exposes a first portion of the at least one electrode when in a first position over the lead body; and a reinforcement member formed at least partially of a different material than the insulating member and coupled to the insulating member, the reinforcement member extending axially over the outer surface of the lead body between the insulating member and proximal end. The reinforcement member may be configured to transfer at least one of a radial or axial force from a proximal portion of the reinforcement member to the insulating member, wherein the at least one of radial or axial force transferred to the insulating member is sufficient to move the insulating member over the outer surface of the lead body. In some examples, the lead may further include a deployable lobe member configured to anchor the reinforcement member and insulating member adjacent a tissue site within a patient.12-30-2010
20100280584ACTIVE IMPLANTABLE MEDICAL SYSTEM HAVING EMI SHIELDED LEAD - A lead extending exteriorly from an active implantable medical device (AIMD) is at least partially ensheathed within an electromagnetic interference (EMI) shield. The AIMD has a conductive equipotential surface to which the EMI shield may be conductively coupled. An impeding circuit may be provided for raising the high frequency impedance of the lead. An energy diversion circuit may also be provided for conductively coupling the lead to the EMI shield.11-04-2010
20110160826IMPLANTABLE MEDICAL DEVICE INCLUDING EDDY CURRENT REDUCING CAPACITOR - An implantable device, such as a pacer, defibrillator, or other cardiac rhythm management device, can include one or more MRI Safe components. In an example, the implantable device includes a capacitor including a first electrode including a first slot extending from a perimeter of the first electrode to an interior of the first electrode. A second electrode is separated from the first electrode by a first distance. The second electrode includes a second slot extending from a perimeter of the second electrode to an interior of the second electrode. The first and second slots are configured to at least partially segment surface areas of the first and second electrodes, respectively, to reduce a radial current loop size in each of the first and second electrodes.06-30-2011
20100036465Insertion tools and methods for an electrical stimulation implant - In some embodiments, a method includes inserting at least a distal end portion of an insertion tool within a body. The distal end portion of the insertion tool is coupled to an electronic implant having a stimulation portion, a terminal portion and a substantially flexible conductor disposed between the stimulation portion and the terminal portion. The distal end portion of the insertion tool is moved within the body such that the stimulation portion of the electronic implant is disposed adjacent a target location and the terminal portion of the electronic implant is disposed beneath a skin of the body.02-11-2010
20120203317ENCLOSURE - An enclosure of an active implantable device comprises a composite material which comprises a first layer of a polyetheretherketone film, a second layer of polyetheretherketone film (08-09-2012
20090240314IMPLANTABLE ELECTRODE LEAD SYSTEM WITH A THREE DIMENSIONAL ARRANGEMENT AND METHOD OF MAKING THE SAME - One embodiment of the invention includes an implantable electrode lead system that includes a series of shims stacked upon each other, a series of first components, and a series of second components connected to the series of first components through a series of connectors. One of the first components extends from one of the shims, and another of the first components extends from another one of the shims. The shims position the first components in a three dimensional arrangement.09-24-2009
20080243218MRI AND RF COMPATIBLE LEADS AND RELATED METHODS OF OPERATING AND FABRICATING LEADS - RF/MRI compatible leads include at least one conductor that turns back on itself at least twice in a lengthwise direction, and can turn back on itself at least twice at multiple locations along its length. The at least one electrical lead can be configured so that the lead heats local tissue less than about 10 degrees Celsius (typically about 5 degrees Celsius or less) or does not heat local tissue when a patient is exposed to target RF frequencies at a peak input SAR of at least about 4 W/kg and/or a whole body average SAR of at least about 2 W/kg. Related devices and methods of fabricating leads are also described.10-02-2008
20080243216SYSTEM AND METHOD FOR PERCUTANEOUS DELIVERY OF ELECTRICAL STIMULATION TO A TARGET BODY TISSUE - An apparatus includes a percutaneous connection port configured to convey an electrical signal between an electrical device disposed outside of a body and an electrical member disposed within the body. The percutaneous connection port has a distal portion and a proximal portion. The proximal portion includes a surface configured to be accessible from a region of the body. The distal portion includes an anchor configured to be disposed within the body. The anchor has a curved shape about an axis substantially parallel to a skin of the body.10-02-2008
20080243219MINIMALLY INVASIVE SYSTEMS FOR LOCATING AN OPTIMAL LOCATION FOR DEEP BRAIN STIMULATION - Systems for locating an optimal site within a brain of a patient for deep brain stimulation include a main cannula having an internal lumen, a guiding cannula having a bent distal end portion configured to pass through the lumen of the main cannula and guide a microelectrode into the brain, a depth adjustment mechanism configured to adjust an insertion depth of the guiding cannula, and a longitudinal angle adjustment device configured to adjust a longitudinal angle of the guiding cannula. The depth adjustment mechanism and longitudinal angle adjustment device adjust a position of the guiding cannula such that the microelectrode locates the optimal site for the deep brain stimulation.10-02-2008
20110160818MRI-CONDITIONALLY SAFE MEDICAL DEVICE LEAD - An implantable medical device lead includes an inner conductor assembly coupled to a first electrode at a distal end of the inner conductor assembly and an outer conductive coil extending coaxially with the inner conductor assembly and coupled to a second electrode. The inner conductor assembly includes one or more filars arranged in a plurality of serially connected current suppression modules. Each current suppression module includes a first coil of the one or more filars wound in a first winding direction, a second coil of the one or more filars coaxial with the first winding and wound in a second winding direction opposite the first winding direction, and a third coil of the one or more filars coaxial with the first and second windings and wound in the first winding direction. The outer conductive coil includes one or more filars wound in the first winding direction.06-30-2011
20110257716ELECTRODE ARRAY AND METHOD OF MANUFACTURING SAME - The present invention provides an electrode array for a medical implant device, comprising a substrate supporting a plurality of electrodes, the substrate comprising at least two layers of material including a first layer and a second layer, wherein the first layer of material and the second layer of material have different coefficients of thermal expansion. The plurality of electrodes may be supported on the first layer of material, and are preferably incorporated in and/or project from the second layer of material. The second layer of material may itself have a layered structure comprising multiple material layers, with the plurality of electrodes incorporated within the said multiple material layers. The first layer of material preferably has a higher coefficient of thermal expansion than the second layer of material. The invention furthermore provides a medical implant device including an electrode array according to the invention, and a method of manufacturing such an electrode array.10-20-2011
20110257715FLEXIBLE NEURAL PROBE FOR MAGNETIC INSERTION - A neural probe deployment system comprising a magnetic probe, a magnetic field generator acting on the magnetic probe, a first guiding tube disposed on a first side of the magnetic field generator, wherein the magnetic probe is loaded inside the first guiding tube, and a second guiding tube disposed on a second side of the magnetic field generator, wherein activation of the magnetic field generator propels the magnetic probe from the first guiding tube through the second guiding tube, thereby deploying the magnetic probe.10-20-2011
20080269860METHODS OF MAKING IMPLANTABLE MEDICAL LEADS WITH A NON-LINEAR SHAPE - Implantable medical leads and methods of making. The method includes providing first and second tubes, and arranging a segment of the first tube side-by-side with a segment of the second tube along a region of interface. The tubes are forced to a non-linear shape along at least a portion of the region of interface. An adhesive is applied to the portion of the region of interface and cured. Upon curing, the adhesive bonds the tubes to one another and elastically maintains the non-linear shape in the absence of an external force. A conductive element is disposed within at least one of the tubes. In some embodiments, the non-linear shape is a sigmoid shape, and the method includes arranging the tube segments in a fixture having a structure defining the sigmoid shape.10-30-2008
20080255646Non-rectilinear lead and a system for deep electrical neurostimulation including such a lead - A lead for deep brain electrical stimulation, to be inserted into liquid cavities, such as ventricles, or cysternae or subarachnoidal spaces, the lead comprising: a tubular body of biocompatible material having a side wall defining a lumen, said tubular body being suitable for being inserted over at least a fraction of its length into the inside of a patient's body in order to reach a region for stimulation; electrodes disposed close to a distal end of the tubular body; and a rigid stylet for inserting removably into the lumen of said tubular body; the lead being wherein said tubular body has an equilibrium shape that is not rectilinear, being different from the shape of the stylet and presenting one and only one bend, and that is sufficiently flexible and elastic to follow the shape of said stylet by deforming reversibly when the stylet is inserted into the lumen. A deep electrical neurostimulation system comprising an electrical pulse generator and at least one such lead having its electrodes electrically connected to said generator.10-16-2008
20080208302IMPLANTABLE NEUROSTIMULATOR ADAPTERS - An adapter for coupling a pair of implantable neurostimulator lead extensions to a connector port of a neurostimulator device includes an elongate body, a connector including eight contacts coupled to a first end of the elongate body, and a housing, which includes two pairs of ports, coupled to a second end of the elongate body. A first pair of ports has openings located on a first face of the housing, and a second pair of ports has openings located on a second face of the housing, wherein the first face is opposite the second face. The adapter connector contacts provide for electrical coupling within the device port, and openings of each of the pairs of adapter housing ports are arranged to receive insertion of side-by-side connector terminals of a plug of each lead extension for electrical coupling within the ports.08-28-2008
20110054584EXTENSIBLE IMPLANTABLE MEDICAL LEAD WITH BRAIDED CONDUCTORS - An extensible implantable electrical lead includes a lead body having a proximal end and a distal end. The lead body is formed of a polymeric material that is extensible between a first length and a second length. A plurality of electrical conductors are disposed within the lead body and extend between the proximal end and the distal end. The plurality of electrical conductors are each electrically insulated from each other and form a braided coil extending between the proximal end and the distal end. The plurality of electrical conductors are electrically insulated and separated from each other and have a braided coil diameter.03-03-2011
20110054583Flexible and Scalable Sensor Arrays for Recording and Modulating Physiologic Activity - An implantable sensor array incorporates active electronic elements to greatly increase the number of sensors and their density that can be simultaneously recorded and activated. The sensors can be of various configurations and types, for example: optical, chemical, temperature, pressure or other sensors including effectors for applying signals to surrounding tissues. The sensors/effectors are arranged on a flexible and stretchable substrate with incorporated active components that allow the effective size, configuration, number and pattern of sensors/effectors to be dynamically changed, as needed, through a wired or wireless means of communication. Active processing allows many channels to be combined either through analog or digital means such that the number of wires exiting the array can be substantially reduced compared to the number of sensors/effectors on the array.03-03-2011
20110054582SHIELDED NETWORK FOR AN ACTIVE MEDICAL DEVICE IMPLANTABLE LEAD - A shielded component or network for an active medical device (AMD) implantable lead includes (1) an implantable lead having a length extending from a proximal end to a distal end, all external of an AMD housing, (2) a passive component or network disposed somewhere along the length of the implantable lead, the passive component or network including at least one inductive component having a first inductive value, and (3) an electromagnetic shield substantially surrounding the inductive component or the passive network. The first inductive value of the inductive component is adjusted to a account for a shift in its inductance to a second inductive value when shielded.03-03-2011
20110054581MEDICAL DEVICES INCLUDING POLYISOBUTYLENE BASED POLYMERS AND DERIVATIVES THEREOF - The present invention is directed to a medical electrical lead including an insulative lead body formed, at least in part, from a polyisobutylene urethane, urea or urethane/urea copolymer. In some applications, the lead body can include at least one outer tubular insulator and/or an inner elongated member formed from a polyisobutylene urethane, urea or urethane/urea copolymer. Portions of the lead body formed form the polyisobutylene urethane, urea or urethane/urea copolymer can be either extruded or molded.03-03-2011
20110054580POLYISOBUTYLENE URETHANE, UREA AND URETHANE/UREA COPOLYMERS AND MEDICAL LEADS CONTAINING THE SAME - The present invention provides medical devices that contain polyisobutylene urethane copolymers, polyisobutylene urea copolymers and polyisobutylene urethane/urea copolymers. More particularly, the present invention provides medical leads that contain such copolymers.03-03-2011
20110054579FLEXIBLE PENETRATING ELECTRODES FOR NEURONAL STIMULATION AND RECORDING AND METHOD OF MANUFACTURING SAME - A flexible penetrating array for neuronal applications includes an insulating layer. A conductive layer is formed on the insulating layer. A flexible polymer substrate is formed on the conductive layer; the polymer substrate includes defined penetrating electrodes. A first metallization layer is formed on the polymer substrate. A second flexible polymer layer is formed on the first metallization layer. A second metallization layer is formed on the second flexible polymer layer. A third flexible polymer layer is formed on the second metallization layer. The third flexible polymer layer is patterned to expose the second metallization layer that is integrated with the out of plane conductive layer and first metallization layer. Also disclosed is a method of forming the array.03-03-2011
20130158642SYSTEMS AND METHODS FOR ALTERING ONE OR MORE RF-RESPONSE PROPERTIES OF ELECTRICAL STIMULATION SYSTEMS - An implantable lead includes a lead body and at least one safety element. The lead body has a distal end and a proximal end. The lead body defines at least one lumen extending along at least a portion of the lead body. The lead body includes a plurality of electrodes disposed on the distal end of the lead body, a plurality of terminals disposed on the proximal end of the lead body, and a plurality of conductors disposed in the lead body, each conductor electrically coupling at least one of the electrodes to at least one of the terminals. The at least one safety element is disposed along at least a portion of the lead body and is configured and arranged to reduce damage to patient tissue adjacent to the plurality of electrodes due to heating, induced electrical signals, or both when the lead is exposed to radio frequency irradiation.06-20-2013
20130158640LEAD ANCHORING SYSTEM WITH LIMITED MOVEMENT OF ANCHORING DEVICE ALONG LEAD - Described is a medical system for implantation within a patient's body. The medical system comprises: an implantable medical device; a lead having a proximal end, a distal end and an intermediate portion located between the proximal and distal ends, wherein the proximal end has a connector connecting the lead to the implantable medical device, and the intermediate portion includes a portion having a reduced outer diameter compared to an outer diameter of a remainder of the intermediate portion; and an anchoring device for anchoring the lead within the patient's body, the anchoring device comprising a sleeve having an inner lumen extending therethrough that accommodates the reduced outer diameter portion of the lead, wherein axial movement of the anchoring device along the lead is limited to within the reduced outer diameter portion of the lead.06-20-2013
20130158641MRI CONDITIONALLY SAFE LEAD WITH LOW-PROFILE MULTI-LAYER CONDUCTOR FOR LONGITUDINAL EXPANSION - An implantable electrical lead includes a lead body and a multi-layer coil conductor extending within the lead body. The multi-layer coil conductor includes a first coil layer and a second coil layer disposed about the first coil layer. The first and second coil layers are configured such that the multi-layer coil conductor has an axial stiffness substantially equal to an axial stiffness of the lead body adjacent to the multi-layer coil conductor.06-20-2013
20130158639Implantable Electrode and Method of Making the Same - The implantable electrode system of the preferred embodiments includes a conductor, an interconnect coupled to the conductor, an insulator that insulates the interconnect, and an anchor that is connected to both the conductor and the insulating element. The anchor is mechanically interlocked with at least one of the conductor and the insulator.06-20-2013
20130158638STIMULATION LEAD AND METHOD OF FABRICATION - In one embodiment, an implantable stimulation lead for delivering electrical stimulation to tissue of a patient, the implantable stimulation lead comprises: a lead body comprising a plurality of wires strands that form a solid helical hollow tube that is maintained by mutual contact pressure of neighboring wire strands, wherein the plurality of wire strands comprise an outer coating of non-conductive material to electrically isolate each of the plurality of wire strands from each other; and a plurality of electrodes with each electrode being electrically coupled to one of the plurality of wire strands.06-20-2013
20110118815ELECTRODE ARRAY ASSEMBLY AND METHOD OF MAKING SAME - A lead assembly and a method of making a lead are provided. The method of making a multi-contact lead assembly comprises placing monofilament placed in the void spaces not occupied by the plurality of conductor wires and, in one embodiment, thermally fusing the monofilament to the like material spacer by applying heat just below the melting temperature of the monofilament and spacer material. Alternatively, the monofilament and spacer may be of different materials and heat is applied to cause at least one material to thermally reflow or melt. The conductive contacts may be located at either the distal end and/or proximal end of the lead. Oversized spacers may be used in order to provide extra material to fill voids during the thermal fusion/reflow process.05-19-2011
20110118814IMPLANTABLE LEAD WITH COPLANAR CONTACT COUPLING - An implantable lead for a medical device with a coplanar coupling for connecting a conductor to a contact reduces conductor bending moments to improve lead reliability. The implantable lead comprises a lead body having a proximal end and a distal end, at least one conductor, at least one contact carried on the lead body, and at least one coupling. The coupling is configured to exit the conductor lumen and mate with the contact while retaining the conductor coplanar to the lead body. The coupling includes a first region attached to the conductor, a second region located radially outward from the first region and void of the at least one conductor, and a third region located radially outward from the first region and the second region, the third region placed in a channel in the contact and having a weld to connect the coupling to the contact.05-19-2011
20110125240BIOCOMPATIBLE INDUCTOR FOR IMPLANTABLE LEAD AND METHOD OF MAKING SAME - A biocompatible inductor for an implantable medical lead is disclosed herein. In one embodiment the biocompatible inductor may include a biocompatible bobbin and a wire wound about a barrel of the biocompatible bobbin to form a coil. The wire may include an electrically conductive core, an electrically conductive biocompatible jacket extending over the core, and a coating of high dielectric strength insulation material extending over the jacket. Additionally, the biocompatible inductor may include medical adhesive located in gaps within the coil and a polyester shrink tube covering the coil.05-26-2011
20110137390SYSTEM AND METHOD FOR PROTECTING IMPLANTED MEDICAL DEVICES FROM INTERFERING RADIATED FIELDS - An implantable medical system includes an implantable medical device (IMD) and at least one lead coupled to the IMD at a proximal end to anatomic tissue of a patient at a distal end. According to various embodiments, a piezoelectric transformer permits the transmission of intended signals, such as physiologic signals or therapy signals, while preventing an interfering signal from being transmitted toward the circuitry for generating therapy or causing heating of the anatomical tissue.06-09-2011
20100324638Temporary Stimulation Lead With Polymer Electrodes And Method Of Manufacture - A temporary medical lead in which stimulating electrical energy is transmitted to body tissue through the lead electrodes via ionic conduction within the hydrogel material. The structure of the hydrophilic hydrogel material consists of a porous structure into which conductive salt ions are diffused. In addition the structure of the hydrogel material can be loaded with a single or combination of therapeutic drugs from which is eluted from the electrode's surface.12-23-2010
20100324637ELECTRODE PROBE FOR MEDICAL APPLICATION - An electrode probe for medical applications includes a tubular, flexible probe body, an electrode mounted at the distal end of the probe body, and an electrical supply line within the probe body and extending to the electrode. At least a portion of the distal end section of the probe body can be transformed into a radially broadened collar, preferably owing to relative motion between the electrical supply line and the probe body. Where a screw-in electrode is used, the distal end section may be deformed into a radially broadened collar when the electrode is screwed into the body tissue, owing to forces exerted by the body tissue onto the distal end section, and/or owing to forces exerted by the screw-in electrode on the distal end section via a thrust bearing.12-23-2010
20100324639METHODOLOGY AND APPARATUS TO TERMINATE ABANDONED ACTIVE IMPLANTABLE MEDICAL DEVICE LEADS - An energy management system facilitates the transfer of high frequency energy coupled into an implanted abandoned lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted abandoned lead to the energy dissipating surface of an abandoned lead cap through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted abandoned lead's impedance characteristics.12-23-2010
20100324640ELECTRICALLY ISOLATING ELECTRICAL COMPONENTS IN A MEDICAL ELECTRICAL LEAD WITH AN ACTIVE FIXATION ELECTRODE - A lead body adapted for in-vivo implantation in a living subject includes a proximal end configured for electrical and mechanical connection to a therapy or a monitoring device, and a distal end. A collar is disposed at the distal end of the lead body, and a casing is disposed within the collar and is translatable along a central longitudinal axis of the collar. At least one electrical conductor extends substantially the length of the lead body, and an electronic component is disposed within the casing and conductively coupled to the electrical conductor. An electrode is mechanically connected to the casing and conductively coupled to the electronic component. A seal is disposed between the casing assembly and the collar to prevent passage of ionic fluid into the lead body through its distal end.12-23-2010
20100185269CORPUS CALLOSUM NEUROMODULATION ASSEMBLY - Neuromodulation assemblies with lead bodies having curvatures that mimic the curvatures of the splenium, trunk, genu, or rostrum of the corpus callosum. Methods of stimulating the corpus callosum and methods of securing an electrical lead in the brain are also provided.07-22-2010
20100179627Medical Lead Termination Sleeve for Implantable Medical Devices - A wire and electrode combination suitable for use with implanted medical devices, and a method for coupling the wire and electrode to achieve a robust electrical connection suitable for use with such medical devices are disclosed. The apparatus employs a wire that is optimized for strength, an electrode optimized for biocompatibility, and a termination sleeve with a closed distal end for coupling the wire to the electrode, while eliminating the potential for galvanic corrosion, enhancing weld quality, and facilitating manufacture of the apparatus. The method involves compressing the sleeve to engage the wire at two locations, where contact between the sleeve and wire at the first location seals the interior of the sleeve, and contact between the sleeve and wire at the second location electrically couples the wire to the sleeve. The sleeve, which is easier to manipulate than the wire, is then spot welded to the electrode.07-15-2010
20100179626SYSTEM AND METHOD FOR IMPLANTING A PADDLE LEAD - A method includes 07-15-2010
20110071606BIFURCATED LEAD SYSTEM AND APPARATUS - Bifurcated leads may simplify implantation procedures associated with electrical single therapy at two distinct anatomical locations, such as a left and a right occipital nerve.03-24-2011
20120310317TISSUE ANCHOR - Embodiments of the invention generally relate to an anchor used to secure a position of a device or component relative to internal tissue of a patient and prevent migration of the component relative to the tissue of the patient. In one embodiment, the anchor is combined with an electrode lead that is configured for implantation in a patient. The electrode lead comprises a lead body having a proximal end and a distal end, a stimulating electrode and the anchor. The stimulating electrode is attached to the lead body at the distal end. The anchor is attached to the distal end of the lead body. In one embodiment, the anchor comprises a plurality of fiber loops each including a fiber having first and second ends attached to the lead body, and an intermediate portion between the first and second ends that is displaced from the lead body.12-06-2012
20120310316IMPLANTABLE ELECTRODE ARRAY ASSEMBLY INCLUDING A CARRIER FOR SUPPORTING THE ELECTRODES AND CONTROL MODULES FOR REGULATING OPERATION OF THE ELECTRODES EMBEDDED IN THE CARRIER, AND METHOD OF MAKING SAME - An implantable electrode array (12-06-2012
20120310315DEVICE AND METHOD FOR REDUCING PATIENT TRANSTHORACIC IMPEDANCE FOR THE PURPOSE OF DELIVERING A THERAPEUTIC CURRENT - A device and method for reducing patient transthoracic impedance for the purpose of delivering a therapeutic current are provided. In one embodiment, the device for reducing patient transthoracic impedance for the purpose of delivering a therapeutic current may be used in a defibrillator. The device for reducing patient transthoracic impedance for the purpose of delivering a therapeutic current may be a microneedle array that may have a number of different configurations and may be made with different materials.12-06-2012
20100241205IMPLANTABLE LEAD MANAGEMENT - An apparatus for managing a lead of an implantable medical device includes a lead retention element and a fixation element. The lead retention element has a proximal end, a distal end, and a lumen extending from the proximal end to the distal end. The lumen is configured to slidably receive the lead. The fixation element is configured to fix the lead retention element relative to the implantable medical device in an orientation orthogonal to a lead receptacle of the device such that the proximal end of the lead retention element is closer to an opening of the lead receptacle than the distal end of the retention element. The distal end of the lead retention element is configured to firmly engage the lead to resist proximal sliding of the lead in the lumen of the retention element once the lead has been moved distally through the lumen.09-23-2010
20120209365MAGNETIC RESONANCE IMAGING COMPATIBLE MEDICAL ELECTRICAL LEAD AND METHOD OF MAKING THE SAME - This disclosure describes an implantable medical lead, and method of making such a lead or components of the lead, that reduces the undesirable effects the fields generated by an MRI device may have on the implantable medical lead and the implantable medical device. The implantable medical lead includes an RF filter placed in series with an electrical path to an electrode of the lead. In one example, the RF filter may comprise a conductor wound in such a manner that it provides an inductance and capacitance that provides the RF filter with a resonant frequency, and in some instances, multiple resonant frequencies. At frequencies around the resonant frequency of the RF filter, the RF filter presents a high impedance, thereby blocking the signal from or at least attenuating the signal propagating to the electrode. At frequencies far from the resonant frequency, the RF filter presents a low impedance.08-16-2012
20090292344METHODS AND SYSTEMS FOR INTRACRANIAL NEUROSTIMULATION AND/OR SENSING - Methods and systems for intracranial neurostimulation and/or sensing are disclosed. An intracranial signal transmission system in accordance with an embodiment of the invention includes a generally electrically insulating body having a head portion configured to be positioned at least proximate to an outer surface of a patient's skull, and a shaft portion configured to extend into an aperture in the patient's skull. The system can further include at least one electrical contact portion integrated with the support body. The at least one electrical contact portion can be positioned to transfer electrical signals to, from, or both to and from the patient's brain via an aperture in the patient's skull.11-26-2009
20110190860PROBE FOR AN IMPLANTABLE MEDICAL DEVICE - The invention relates to a probe (08-04-2011
20110190857ANCHOR ASSEMBLY FOR USE IN OCCIPITAL NERVE STIMULATION - A system that includes an anchor assembly, the anchor assembly including: at least one anchoring structure configured to be anchored in a head of a patient; and at least one lead anchoring structure; and b. at least one lead, the at least one lead including a lead body extending from a distal end to a proximal end; at least one electrode located on or in the distal end of the lead body; and at least one lead anchor located on or in the lead body proximal to the electrode, wherein the at least one lead anchor of the lead and the lead anchoring structure are configured to cooperate to secure the at least one lead to the anchor assembly.08-04-2011
20110190859POLYMER LINEAR ACTUATOR FOR MICRO ELECTRO MECHANICAL SYSTEM AND MICRO MANIPULATOR FOR MEASUREMENT DEVICE OF CRANIAL NERVE SIGNAL USING THE SAME - A polymer linear actuator for a micro electro mechanical system (MEMS) and a micro manipulator for a measurement device of cranial nerve signal using the same are provided. The polymer linear actuator has first and second bodies positioned spaced apart to a distance from each other, and one or more pairs of V-type moving units connecting the first and second bodies together, wherein the moving units in pair are opposed to each other to convert a rotation motion of the respective moving units into a linear motion, thereby causing the first and second bodies to move linearly.08-04-2011
20110190858LEAD HAVING EXPANDABLE DISTAL PORTION - Leads may include expandable and collapsible distal end portions that provide anchoring in tissue when expanded and allow for insertion through an introducer when collapsed.08-04-2011
20110137391FOLDABLE COIL FOR AN IMPLANTABLE MEDICAL DEVICE - An implantable component of a medical device including an implantable coil including a conductor disposed in a carrier including first and second fold lines, wherein the carrier has at least one structural variation along each of the fold lines such that a substantially straight edge is formed along each of the fold lines when the coil is biased into a folded configuration, and an electronics module electrically connected to the coil and configured to inductively communicate, via the coil, with an external component of the device.06-09-2011
20110152988CAVERNOUS NERVE STIMULATION VIA UNIDIRECTIONAL PROPAGATION OF ACTION POTENTIALS - Methods of using unidirectionally propagating action potentials (UPAPs) for cavernous nerve stimulation and for certain disorders are provided. Stimulators capable of creating such UPAPs include, but are not limited to, miniature implantable stimulators (i.e., microstimulators), possibly with programmably configurable electrodes.06-23-2011
20110264177IMPLANTABLE MEDICAL LEAD - An implantable medical lead has at least one electric conductor running along a lead body and electrically interconnecting at least one electrode at the distal portion of the lead with at least one lead terminal at the proximal portion of the lead. The lead also has at least one closed channel running along at least a portion of the lead body. The closed channel contains an extracorporeally detectable detection substance. A rupture to the lead will cause the detection substance to leak out of the channel and outside of the lead body. Lead damage can be confirmed by the absence of or a reduced amount of said detection substance inside the lead.10-27-2011
20100023102Layered Electrode Array and Cable - A method of fabricating a neurostimulation circuit is disclosed. According to the present invention, individual implantable assembly layers are cut by a laser or by mechanical means, and then stacked together, thereby providing a more efficient manufacturing method for manufacturing high density implantable electrode arrays and cables. In the invention, the separate implantable assembly layers can be melted and conglomerated to form a neurostimulation circuit in which the conductors and terminal pads are encapsulated within a continuous polymer insulating film.01-28-2010
20110218603CRIMP TERMINATIONS FOR CONDUCTORS IN IMPLANTABLE MEDICAL LEAD AND METHOD OF MAKING SAME - A method of manufacturing an implantable medical lead is disclosed herein. The method may include: providing a lead body including a proximal end, a distal end, and an electrode near the distal end; provide a conductor extending between the proximal and distal ends; providing a crimp including a ribbon-like member and extending the ribbon-like member around the conductor; and mechanically and electrically connecting the ribbon-like member to the electrode.09-08-2011
20110218602BRAIDED IMPLANTABLE MEDICAL LEAD AND METHOD OF MAKING SAME - An implantable medical lead disclosed herein may include a longitudinally extending body, a helical anchor and a lead connector end. The longitudinally extending body may include a distal end, a proximal end, a braid-reinforced inner tubular layer extending between the proximal and distal ends, and an outer tubular layer extending between the proximal and distal ends. The braid-reinforced inner tubular layer may extend through the outer tubular layer in a coaxial arrangement. The helical anchor electrode may be operably coupled to a distal end of the braid-reinforced inner tubular layer. The lead connector end may be operably coupled to the proximal end of the body and include a pin contact operably coupled to a proximal end of the braid-reinforced tubular layer. Rotation of the pin contact relative to the lead connector end may cause rotation of the braid-reinforced inner tubular layer within the outer tubular layer, and the resulting rotation of the braid-reinforced inner tubular layer may cause rotation of the helical anchor electrode.09-08-2011
20100016935MEDICAL IMPLANTABLE LEAD - A implantable lead an elongate body including a flexible insulating tube, and a tubular conductor layer formed of multiple separate strip conductors, which are arranged at the outer surface of the insulating tube and extend along the length thereof.01-21-2010
20110118813ELECTRODE ASSEMBLY IN A MEDICAL ELECTRICAL LEAD - A medical device lead is presented that includes an electrode assembly having a first electrode located near a distal end of the electrode assembly and a second electrode located near a proximal end of the electrode assembly. The electrode assembly also includes a conductive elongated coupler that is electrically coupled to the first electrode and capacitively coupled to the second electrode. At low frequencies and DC (e.g., during delivery of stimulation therapy), the capacitive coupling between the conductive elongated coupler and the second electrode presents a high impedance allowing little current to be redirected from the first electrode to the second electrode. However, at high frequencies (e.g., during an MRI scan) the capacitive coupling between the conductive elongated coupler and the second electrode presents a low impedance, resulting in a significant amount of induced current being redirected to the second electrode and dissipated into bodily fluid surrounding the second electrode.05-19-2011
20110307042ELECTRODE ARRAYS BASED ON POLYETHERKETONEKETONE - Laminated assemblies containing electrode-bearing layers comprised of polyetherketoneketone are useful in the fabrication of implantable medical devices.12-15-2011
20080288037Flexible Circuit Electrode Array - A flexible circuit electrode array with more than one layer of metal traces comprising: a polymer base layer; more than one layer of metal traces, separated by polymer layers, deposited on said polymer base layer, including electrodes suitable to stimulate neural tissue; and a polymer top layer deposited on said polymer base layer and said metal traces. Polymer materials are useful as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision, cochlear stimulation to create artificial hearing, or cortical stimulation many purposes. The pressure applied against the retina, or other neural tissue, by an electrode array is critical. Too little pressure causes increased electrical resistance, along with electric field dispersion. Too much pressure may block blood flow.11-20-2008
20120041529ESTABLISHING CONTINUITY BETWEEN A SHIELD WITHIN AN IMPLANTABLE MEDICAL LEAD AND A SHIELD WITHIN AN IMPLANTABLE LEAD EXTENSION - Implantable medical leads and implantable lead extensions include a shield. The implantable medical lead is coupled to the implantable lead extension. Stimulation electrodes of the implantable medical lead contact stimulation connectors within a housing of the implantable extension to establish a conductive pathway for stimulation signals from filars of the implantable extension to filars of the implantable medical lead. Continuity is established between the shield of the implantable medical lead and the implantable extension by providing a radio frequency conductive pathway within the housing. The radio frequency conductive pathway extends from a shield of the implantable extension to a shield connector that contacts a shield electrode of the implantable medical lead. The radio frequency conductive pathway may have various forms such as a jumper wire or an extension of the shield within the implantable extension.02-16-2012
20110087315CO-ELECTRODEPOSITED HYDROGEL-CONDUCTING POLYMER ELECTRODES FOR BIOMEDICAL APPLICATIONS - Bioelectrodes having enhanced biocompatible and biomimetic features are provided. Methods of making and using the bioelectrodes are further provided. A biologically integrated bioelectrode device and method for detecting electronic signals using a bioelectrode comprising a first electrically conductive substrate and a biological component. The bioelectrode also comprises a conductive polymer electrically coupling the first electrically conductive substrate and the biological component to define a bioelectrode. The bioelectrode can transmit or receive an electrical signal between the electrically conductive substrate and the biological component and conductive polymer.04-14-2011
20120209364LEAD HAVING THIN DISTAL END PORTION - A deep brain stimulation lead includes a distal end portion having a length of greater than 5 millimeters and a largest outer diametric dimension of 1 millimeter or less. One or more electrodes are disposed at the distal end portion. The lead also includes a proximal end portion having one or more contacts electrically coupled to the one or more electrodes. The lead further includes a mid portion between the proximal end portion and the distal end portion. The mid portion has an outer diametric dimension of greater than 1 millimeter and is configured and positioned to be located in proximity to a burr hole of a skull of patient when the distal end portion is positioned in the brain of the patient at a location to deliver a signal to a target region.08-16-2012
20120046722SHIELDING AN IMPLANTABLE MEDICAL LEAD - Implantable medical leads are shielded with a braided shield that surrounds an inner layer of insulation. An outer layer of insulation may also surround the shield. The shield is designed with parameters that limit the passage of radio frequency energy, particularly in the magnetic resonance imaging spectrum, to filars that are surrounded by the inner layer of insulation. The braided shield has a plurality of parameters and corresponding ranges. The parameters include one or more of braid angle, wire size, number of wires wound per direction, number of wires in a bundle, wire spacing in an axial dimension, ultimate tensile strength, cross-sectional wire shape, material, and distance from termination to a nearest electrode. Additional parameters of the lead related to the shielding also include one or more of inner insulation thickness, and outer insulation thickness.02-23-2012
20120046721LAYERED ELECTRODE FOR AN IMPLANTABLE MEDICAL DEVICE LEAD - A medical device lead includes an insulative lead body, a conductor extending through the lead body from a proximal end to a distal end, and an electrode electrically connected to the conductor. The proximal end is adapted to be electrically connected to a pulse generator. The electrode includes a plurality of electrode modules mechanically coupled in a stack of electrode modules. Each electrode module includes a plurality of layers that define substantially similar sized pores such that the stack of electrode modules includes an array of the substantially similar sized pores.02-23-2012
20120004714LEAD HAVING COIL ELECTRODE WITH PREFERENTIAL BENDING REGION - An implantable lead may have a distal shocking coil that is configured to include a predetermined buckle region in order to limit potential cardiac damage that might otherwise occur if the implantable lead is too stiff. An implantable lead may have a proximal shocking coil that is configured to have a flexibility that more closely matches the flexibility of the lead body on either side of the proximal shocking coil.01-05-2012
20090198312LEAD WITH LEAD STIFFENER FOR IMPLANTABLE ELECTRICAL STIMULATION SYSTEMS AND METHODS OF MAKING AND USING - A lead includes a plurality of electrodes disposed on the distal end of the lead, a plurality of contact terminals disposed on the proximal end of the lead, a plurality of conductor wires extending along the lead to couple the electrodes electrically to the contact terminals, a central lumen defined by the lead and extending from the proximal end of the lead towards the distal end of the lead, and a tubular stiffener disposed in the proximal end of the central lumen. The tubular stiffener is configured and arranged to facilitate insertion of the proximal end of the lead into a connector.08-06-2009
20120232629MULTI-ELECTRODE LEADS FOR BRAIN IMPLANTATION - A lead for use in Deep Brain Stimulation (DBS) and similar applications has a rigid lead tip with multiple electrodes thereon. The electrodes are formed by coating a lead tip core with a conductive material; selectively removing the conductive material to define the electrodes and conductive tracks leading therefrom; and then applying a layer of insulating material over the tracks to leave the electrodes exposed. Terminals are also left exposed on the tracks for connection to energy supply and/or data transmission lines. Such lines are preferably provided on or within a flexible lead body connected to the lead tip.09-13-2012
20120232630ARTICULATING INTERFACES FOR BIOLOGICAL TISSUES - A biological tissue interface system is disclosed which employs an electroactive polymer actuator to pivot a tissue interface portion which may be adapted to engage with neural tissue. The system comprises a base portion, an articulating portion having a proximal end attached to the base portion and a free distal end, and an actuator operably coupled to the articulating portion, driven by a conjugated polymer that changes dimension in response to an electric charge. The polymer applies a force to pivot the articulating portion, relative to the base portion, to engage tissue at the distal tissue interface. In neural interface applications, the articulating portion may comprise at least one conducting surface for neural communications, such as a microelectrode or a polymer.09-13-2012
20120010689LEAD ELECTRODE FOR USE IN AN MRI-SAFE IMPLANTABLE MEDICAL DEVICE - A medical lead is configured to be implanted into a patients body and comprises a lead body, and an electrode coupled to the lead body. The electrode comprises a first section configured to contact the patient's body, and a second section electrically coupled to the first section and configured to be capacitively coupled to the patient's body.01-12-2012
20100076538STYRENE-ISOBUTYLENE COPOLYMERS AND MEDICAL DEVICES CONTAINING THE SAME - In accordance with various aspects of the invention, copolymers comprising styrene and isobutylene monomers are used in the construction of implantable and insertable medical devices for electrical stimulation, including, for example, electronic signal generating components and electrical leads for such devices.03-25-2010
20100121421IMPLANTABLE LEAD - A highly flexible implantable lead that offers improved flexibility, fatigue life and fatigue and abrasion resistance improved reliability, effective electrode tissue contact with a small diameter and low risk of tissue damage during extraction. In one embodiment the lead is provided with both defibrillation electrodes and pacing/sensing electrodes. For defibrillation/pacing leads, the lead diameter may be as small as six French or smaller. The construction utilizes helically wound conductors. For leads incorporating multiple separate conductors, many of the helically wound conductors are arranged in a multi-filar relationship. Preferably, each conductor is a length of wire that is uninsulated at about the middle of its length to create an electrode, wherein the conductor is folded in half at about the middle of the length to create first and second length segments that constitute parallel conductors.05-13-2010
20120016452HIGH-RESOLUTION CONNECTOR FOR A NEUROSTIMULATION LEAD - An implantable connector comprises an electrically insulative housing including an outer wall, an interior cavity surrounded by the outer wall, a port through which the lead body portion can be introduced into the interior cavity, and a pair of first apertures disposed through the outer wall on a first side of the housing. The connector further comprises an electrical spring clip contact mounted to the housing. The contact includes a common portion and a pair of legs extending from opposite ends of the common portion. The legs respectively extend through the first apertures into the interior cavity, such that the legs firmly engage the electrical terminal therebetween when the lead body portion is introduced into the interior cavity.01-19-2012
20120016451TORQUE ENHANCEMENT FOR MRI-CONDITIONALLY SAFE MEDICAL DEVICE LEAD - An implantable medical device lead includes an inner conductor assembly coupled to a first electrode at a distal end of the inner conductor assembly and an outer conductive coil extending coaxially with the inner conductor assembly and coupled to a second electrode. The inner conductor assembly includes one or more filars arranged in a plurality of serially connected current suppression modules. The inner conductor assembly is configured to improve torque transmission.01-19-2012
20120022625Electronics Package Suitable for Implantation - The invention is directed to a method of bonding a hermetically sealed electronics package to an electrode or a flexible circuit and the resulting electronics package that is suitable for implantation in living tissue, such as for a retinal or cortical electrode array to enable restoration of sight to certain non-sighted individuals. The hermetically sealed electronics package is directly bonded to the flex circuit or electrode by electroplating a biocompatible material, such as platinum or gold, effectively forming a plated rivet-shaped connection, which bonds the flex circuit to the electronics package. The resulting electronic device is biocompatible and is suitable for long-term implantation in living tissue.01-26-2012
20120059444System Comprising a Box for Implanting in a Body Part03-08-2012
20120059443ELECTRICAL CONNECTION DEVICE IMPLANTABLE IN THE HUMAN BODY - The invention concerns an electrical connection device (03-08-2012
20120059442STIMULATION LEAD, STIMULATION SYSTEM, AND METHOD FOR LIMITING MRI INDUCED CURRENT IN A STIMULATION LEAD - In one embodiment, a percutaneous stimulation lead for electrically stimulating tissue of a patient, comprises: a plurality of electrodes being electrically coupled to a plurality of terminals through a plurality of conductors within a lead body of the lead, wherein each electrode comprises a respective first surface exposed on an exterior surface of the stimulation lead to conduct current to or from tissue of the patient and a respective second surface disposed within an interior of the stimulation lead, the plurality of electrodes are arranged such that adjacent pairs of electrodes are capacitively coupled through a first surface of a first electrode of the respective pair and a respective second surface of a second electrode of the respective pair to substantially block current flow between adjacent electrodes at stimulation frequencies and to substantially pass current between adjacent electrodes at MRI frequencies.03-08-2012
20120059445IMPLANTABLE LEAD BANDSTOP FILTER EMPLOYING AN INDUCTIVE COIL WITH PARASITIC CAPACITANCE TO ENHANCE MRI COMPATABILITY OF ACTIVE MEDICAL DEVICES - A medical lead system includes at least one bandstop filter for attenuating current flow through the lead across a range of frequencies. The bandstop filter has an overall circuit Q wherein the resultant 3 dB bandwidth is at least 10 kHz. The values of capacitance and inductance of the bandstop filter are selected such that the bandstop filter is resonant at a selected center frequency or range of frequencies. Preferably, the bandstop filter has an overall circuit Q wherein the resultant 10 dB bandwidth is at least 10 kHz. Such bandstop filters are backwards compatible with known implantable deployment systems and extraction systems.03-08-2012
20110093053MEDICAL LEAD ASSEMBLY AND METHOD FOR IMPLANTATION THEREOF (As Amended) - An assembly includes a medical implantable lead adapted to be attached with a distal end of the lead to an organ inside a human or animal body, the medical implantable lead being formed with an inner lumen extending along essentially the entire length of the lead. The assembly also includes a support core that has a desirable stiffness and a suitably cross sectional dimension such that it is insertable into the lumen in order to increase the stiffness of the lead along its length during its working life when being implanted into a body. A method for implanting a medical implantable lead into a human or animal body makes use of such an assembly.04-21-2011
20110093052NEURAL INTERFACE SYSTEM - A neural interface system including an electrode array and a carrier that supports the electrode array, in which the electrode array includes a substrate rolled into a three-dimensional shape, a plurality of conductive traces patterned on the substrate and adapted to transmit electrical signals, and a plurality of elliptically shaped, externally facing electrode sites coupled to the plurality of conductive traces that electrically communicate with their surroundings. The plurality of electrodes are arranged in a triangular lattice circumferentially around and axially along the carrier, and the substrate includes an edge that extends axially along the carrier and is constrained between a first axial row portion of the plurality of electrode sites and a second axial row portion of the plurality of electrode sites adjacent to the first axial row portion.04-21-2011
20110093051ASSIGNMENT AND MANIPULATION OF IMPLANTABLE LEADS IN DIFFERENT ANATOMICAL REGIONS WITH IMAGE BACKGROUND - This disclosure describes techniques for combining an image of a region defined by the user to receive stimulation therapy with an image of representation of leads which will deliver the therapy to the defined region, and importing the combined image on an implantable medical device connected to the leads that will deliver the stimulation therapy. During the process of combining the images, the user manipulates one or both of the images to combine the image such that the leads are placed for accurate therapy delivery. In some examples where more than one region is to receive stimulation therapy, each region can have a different image and/or a different set of leads associated therewith, and a combined image of each region may be produced, manipulated, and imported on the implantable medical device.04-21-2011
20120158107LEAD HAVING A CONDUCTIVE POLYMER CONDUCTOR - A medical electrical lead includes a conductive polymer conductor fabricated from a conductor-filled polyisobutylene urethane, urea or urethane/urea copolymer.06-21-2012
20110009932SYSTEMS AND METHODS OF MAKING AND USING SUPPORT ELEMENTS FOR ELONGATED MEMBERS OF IMPLANTABLE ELECTRIC STIMULATION SYSTEMS - An implantable lead includes a lead body. A plurality of conductors are disposed within the lead body and electrically couple at least one electrode to at least one terminal. At least one of the conductors includes a plurality of units. Each of the units includes a first conductor segment extending along the lead body from a beginning point to a first position, a second conductor segment extending from the first position to a second position, and a third conductor segment extending along the elongated member from the second position to an endpoint. The conductor segments are arranged so as to form alternating single-coil regions and multi-coil regions. At least one support element is disposed along at least a portion of at least one of the single-coil regions and is configured and arranged to increase the stiffness of the at least one of the single-coil regions.01-13-2011
20110066219CONDUCTING POLYMER NANOWIRE BRAIN-MACHINE INTERFACE SYSTEMS AND METHODS - The present invention relates to conducting polymer nanowires and their use in a brain-machine interface which is secure, robust and minimally invasive. In accordance with a first aspect of the present invention, a vascular-based brain-machine interface comprising conducting polymer nanowires is disclosed.03-17-2011
20110106231MRI-COMPATIBLE IMPLANTABLE LEAD HAVING A HEAT SPREADER AND METHOD OF USING SAME - An implantable lead is provided that comprises a lead body and a header assembly. The lead body has a distal end and a proximal end. The lead body is configured to be implanted in a patient. The header assembly is provided at the distal end of the lead body and includes an internal chamber and a tissue engaging end. An electrode is provided on the header assembly. The electrode is configured to deliver a stimulating pulse. A resonant inductor is located within the chamber in the header assembly. An electrically floating heat spreader is provided on the header assembly. The heat spreader is located proximate to the resonant inductor and is positioned on the header assembly to cover at least a portion of the resonant inductor. The heat spreader is thermally coupled to the resonant inductor to convey thermal energy away from the header assembly.05-05-2011
20110106230PLACEMENT DEVICE FOR INSERTING MEDICAL IMPLANTS SUCH AS ELECTRODE LINES - A placement device for precise placement of a medical implant into a living organism includes an elongated body with a distal end and a proximal end. The placement device can be introduced into the living organism through an aditus, so that the proximal end remains outside of the living organism. The distal end has an anchor which can be firmly anchored in the body tissue in removable manner. The medical implant includes an elongated hollow housing with a distal and a proximal end, whereby the hollow housing can translatably receive the placement device therein. The opening at the distal end is provided with a sealing unit for sealing the elongated hollow housing with respect to the placement device.05-05-2011
20110106229Biostable Neuroelectrode - The invention relates to a device for deriving electrical signals or for electrically stimulating neuronal tissue. Neuroelectrodes form an interface between the biological tissue and technical systems. Existing neuroelectrodes for contacting low-lying neuronal layers diminish their properties by the interaction with biological tissue. In order to improve the long-time behavior, neuroelectrodes filled with bioactive substances are used. The neuroelectrode is formed on a flexible or rigid substrate with the aid of a line and of a microcapillary. The inside of the microcapillary serves as a container for the bioactive substance. The biostable neuroelectrode is used for deriving electrical signals or for electrically stimulating neuronal tissue in the fields of neurology and neurophysiology.05-05-2011
20120232631CUBIC SILICON CARBIDE IMPLANTABLE NEURAL PROSTHETIC - An implantable neuronal prosthetic and method of manufacture thereof includes at least one elongated electrode shank adapted for arrangement in the brain having at least one electrode contact disposed on its surface and arranged to electrically couple with said brain. The at least one elongated electrode shank is formed form a single crystal cubic silicon carbide. An insulation layer of amorphous, polycrystalline, or single crystal silicon carbide is disposed over the elongated electrode shank; the insulation layer of amorphous, polycrystalline, or single crystal silicon carbide is removed from the at least one electrode contact. Signal control electronics are attached to the at least one elongated electrode shank and are in electrical communication with the at least one electrode contact. In an embodiment, a plurality of the at least one elongated electrode shanks are arranged into a matrix.09-13-2012
20120232627PRE-SUTURED ANCHOR FOR IMPLANTABLE LEADS - A pre-sutured anchor including a deformable anchor sleeve with a lumen sized to receive the therapy delivery element. An outer surface of the anchor sleeve including one or more annular compression grooves oriented generally co-axial to the lumen. At least one compression member is located in a compression groove in an open configuration. The compression member includes at least one stop. A suture material pre-tied in a self-locking compression knot extends around each compression member. The suture material includes distal ends adapted to receive a tension force that is transmitted as a radial compression force to deform the compression members and substantially engage the stop in a compressed configuration. The anchor sleeve compressively engages the therapy delivery element in the compressed configuration.09-13-2012
20100249892MRI COMPATIBLE IMPLANTED LEAD-ELECTRODE INTERFACE - An electrical lead for implantation into an animal includes a cable to which a stimulation electrode is connected. The cable has a helical electrical conductor enclosed within an insulating sheath. The stimulation electrode has a tubular first contact band with a threaded lumen into which a portion of the helical electrical conductor is screwed. A second contact band has a threaded aperture and a helical electrode coil is screwed into both the threaded lumen and the threaded aperture. The two contact bands are separated so as to expose a portion of the electrode coil to enable electrical stimulation of tissue of the animal. Particular configurations of the helical electrode coil and the helical electrical conductor render the electrical lead compatible with MRI scanning.09-30-2010
20120215295SYSTEMS AND METHODS FOR CUSTOMIZING ELECTRODE STIMULATION - A lead assembly for an electrical stimulation system includes a lead scaffold that defines first, second, and third channels defined along the first major surface of the lead scaffold. The first, second, and third channels are parallel to one another and to a longitudinal length of the lead scaffold. A tapered guide feature is coupled to one end of the lead scaffold. The lead assembly also includes first and second leads with electrodes at distal ends of the leads, terminals at proximal ends of the leads, and conductive wires coupling the electrodes to the terminals. The first lead is insertable into the first channel and the second lead is insertable into the second channel.08-23-2012
20120221086MRI-COMPATIBLE IMPLANTABLE MEDICAL LEAD - An MRI-compatible implantable medical lead includes two electrodes coupled to a distal end of the lead, two matching electrode terminals coupled to a proximal end and a lead body in the form of an outer insulating tubing running from the distal end to the proximal end. A coaxial conductor assembly is arranged in a bore of the outer insulating tubing and comprises an inner conductor, an outer conductor and an inner insulating tubing arranged between the inner and outer conductors. A capacitor is arranged between the inner conductor and the outer conductor at a distance from the distal end defined based on the magnetic field strength of the MRI system with which the lead is compatible.08-30-2012
20120221084Medical Electrical Lead - An improved medical electrical lead is disclosed herein. The lead may include a longitudinally extending body having a distal end, a proximal end, a conductive element extending between the distal and proximal ends, and an electrode coupled to the conductive element utilizing a reflow process. The conductive element and electrode may comprise materials that are incompatible.08-30-2012
20120130461RADIOPAQUE MARKERS FOR IMPLANTABLE MEDICAL LEADS, DEVICES, AND SYSTEMS - Radiopaque markers represent that a lead is suitable for a particular medical procedure such as a magnetic resonance image scan and are added to the lead or related device. The markers may be added after implantation of the lead in various ways including suturing, gluing, crimping, or clamping a radiopaque tag to the lead or to the device. The markers may be added by placing a radiopaque coil about the lead, and the radiopaque coil may radially contract against the lead to obtain a fixed position. The markers may be added by placing a polymer structure onto the lead where the polymer structure includes a radiopaque marker within it. The polymer structure may include a cylindrical aperture that contracts against the lead to fix the position of the structure. The polymer structure may form a lead anchor that includes suture wings that can be sutured to the lead.05-24-2012
20120215294CORONARY VEIN LEADS HAVING PRE-FORMED BIASED PORTIONS FOR FIXATION - A lead having a pre-formed biased portion is adapted for implantation with a body vessel and for connection to a signal generator. The lead is constructed and arranged so that when it is implanted, the electrodes are biased toward a vessel wall by the preformed biased portion, which operates to fixate the lead against the vessel wall.08-23-2012
20120083867HUB FOR IMPLANTABLE MEDICAL LEADS04-05-2012
20120083866APPARATUS AND METHOD FOR EXPANDING A STIMULATION LEAD BODY IN SITU - An implantable lead is provided with at least one extendable member to position therapy delivery elements, which may be electrodes or drug delivery ports, after the lead has been inserted into the body. The lead may formed as a resilient element which is contained in a retainer tube that may be removed to permit the lead to deploy. Alternatively, a non-resilient lead may be provided with a slotted retainer tube. A series of mechanical linkages for expanding and retracting the lead within the human body may be actuated with various mechanisms. A control system may be provided for closed-loop feedback control of the position of the extendable members. The invention also includes a method for expanding an implantable lead in situ.04-05-2012
20120136419IMPLANTABLE MEDICAL LEADS WITH SPIRAL LUMENS - An implantable lead may have one or more lumens disposed within a lead body. The lead body may include one or more lumens spirally disposed therein to reduce flex fatigue in regions of frequent flex. The lead body may include one or more spiral lumens and one or more straight lumens.05-31-2012
20120136420Medical Probe and a Method of Providing a Medical Probe - A medical probe is provided that has a single longitudinally uniform interconnect that provides a connection between a distal end and a proximal end of the probe. The interconnect is obtained by forming a thin uniform film as a spiral on a wafer and subsequently applying this spiral as a helix on a base element of a medical probe. The thin film spiral is manufactured with multiple connecting wires to enable connection between an electronics module and a multiplicity of electrodes (an electrode array) at the distal end of the medical probe.05-31-2012
20100174348MRI COMPATIBLE ELECTRICAL LEAD FOR AN IMPLANTED ELECTRONIC MEDICAL DEVICE - An electrical lead, for implantation in an animal, is compatible with an MRI scanner. The electrical lead has a first plurality of coiled insulated wires forming an outer layer of conductors that has a first inductance and a first capacitance, which act as a first parallel resonator tuned to a Larmor frequency of tissue in the animal. The lead may have a second plurality of coiled insulated wires forming an inner layer of conductors within the outer layer of conductors. The second plurality of coiled insulated wires has a second inductance and a second capacitance that act as a second parallel resonator tuned to the Larmor frequency. Those parallel resonators mitigate signals at the Larmor frequency from traveling along the respective coil. An electrically conductive layer extends around the inner and/or outer layer of conductors, and a layer of a biologically compatible material forms the electrical lead's exterior surface.07-08-2010
20100174347DEVICES AND METHODS FOR CARDIOVASCULAR REFLEX CONTROL VIA COUPLED ELECTRODES - Devices, systems and methods are disclosed by which the blood pressure, nervous system activity, and neurohormonal activity may be selectively and controllably reduced by activating baroreceptors. A baroreceptor activation device is positioned near a baroreceptor, preferably a baroreceptor located in the carotid sinus. A control system may be used to modulate the baroreceptor activation device. The control system may utilize an algorithm defining a stimulus regimen which promotes long term efficacy and reduces power requirements/consumption. The baroreceptor activation device may utilize RF-coupled or other electrodes to activate the baroreceptors. The electrodes may be adapted for connection to the carotid arteries at or near the carotid sinus, and may be designed to minimize extraneous tissue stimulation.07-08-2010
20120253441IMPLANTABLE DEVICE - A device that can be temporarily introduced in a body or permanently implanted in a body comprising at least one elongated electric function conductor for transmitting treatment signals or diagnostic signals, or both, and further comprising a connector, which is connected to the function conductor and disposed on a proximal end of the function conductor, for connecting the device to a further device. Characteristic impedance is present between the function conductor and at least one further conductor. A transition region from the function conductor to the connector is designed such that a characteristic impedance between the function conductor and the further conductor in the transition region is designed to be between the corresponding characteristic impedance of the device in a line section distal of the transition region and the characteristic impedance present proximal of the transition region when the connector is connected to a further device.10-04-2012
20120253440DEVICE AND METHOD FOR ENSURING THE PROPER INSERTION OF A LEAD INTO THE HEADER OF AN IMPLANTABLE MEDICAL DEVICE - An implantable medical device that includes a header a cavity or connector bore that extends from an opening at a first end of the header towards a second end of the header. The cavity is configured to receive a first end of a stimulation lead. The header includes a lead insertion indicator positioned at the second end of the cavity for engaging with the stimulation upon complete insertion into the header. The lead insertion indicator is operable between a first operating state and a second operating state, such that when the stimulation lead is not engaged with the lead insertion indicator, the lead insertion indicator operates in the first operating state, and when the stimulation lead properly engages the lead insertion indicator, the lead insertion indicator operates in the second operating state. The lead insertion indicator generates a signal that indicates the corresponding operating state.10-04-2012
20120253439COUPLING MECHANISMS FOR USE WITH A MEDICAL ELECTRICAL LEAD - An implantable medical lead may include components or mechanisms that can reduce the amount of induced current that is conducted to electrodes of the lead. A medical lead may, for example, have an energy dissipating structure that is connected to an electrode of the lead. This disclosure provides for coupling mechanisms to couple current induced on the lead to the energy dissipating structure. The coupling mechanisms described herein provide continuous contact with both electrode shaft and the energy dissipating structure while producing forces on the electrode shaft that is small enough to permit extension and retraction of the electrode from the lead.10-04-2012
20120253438COUPLING MECHANISMS FOR USE WITH A MEDICAL ELECTRICAL LEAD - An implantable medical lead may include components or mechanisms that can reduce the amount of induced current that is conducted to electrodes of the lead. A medical lead may, for example, have an energy dissipating structure that is connected to an electrode of the lead. This disclosure provides for coupling mechanisms to couple current induced on the lead to the energy dissipating structure. The coupling mechanisms described herein provide continuous contact with both electrode shaft and the energy dissipating structure while producing forces on the electrode shaft that is small enough to permit extension and retraction of the electrode from the lead.10-04-2012
20120215296LEAD RETENTION AND SEALING DEVICE - This application discusses, among other things, a header assembly for coupling a medical electrical lead to a medical stimulating device including a header having a capture mechanism within a bore of a lead retention device. In an example, when the lead retention device is retracted from the bore, the capture mechanism prevents the device from falling out. In another example, the header assembly has a vent disposed within the bore of the lead retention device that permits unrestricted flow of air when the lead retention device is retracted from an engagement surface.08-23-2012
20120316628STRAIN RELIEVED LEAD ROUTING IN BURR HOLE PLUG FOR DEEP BRAIN STIMULATION - A method of performing a medical procedure comprises introducing a medical device through a cranial burr hole into the brain tissue, mounting a plug base around a cranial burr hole, securing the medical device within the aperture of the plug base, seating a proximal end of the medical device within a first groove of the plug base, such that the proximal end exits the aperture of the plug base through the first groove, looping the proximal end from the first groove to a second groove in the plug base, seating the proximal end within the second groove, such that the proximal end extends across the aperture of the plug base from the second groove, and seating the proximal end within a third groove of the plug base, such that the proximal end exits the plug base aperture through the third groove.12-13-2012
20120316630METHODS AND APPARATUS FOR EFFECTUATING A LASTING CHANGE IN A NEURAL-FUNCTION OF A PATIENT - The following disclosure describes several methods and apparatus for intracranial electrical stimulation to treat or otherwise effectuate a change in neural-functions of a patient. The methods in accordance with the invention can be used to treat brain damage (e.g., stroke, trauma, etc.), brain disease (e.g., Alzheimer's, Pick's, Parkinson's, etc.), and/or brain disorders (e.g., epilepsy, depression, etc.). The methods in accordance with the invention can also be used to enhance neural-function of normal, healthy brains (e.g., learning, memory, etc.), or to control sensory functions (e.g., pain).12-13-2012
20120316629MITIGATION OF PRESSURE ULCERS USING ELECTRICAL STIMULATION - A method is provided for treating pressure ulcers by transmitting an electrical stimulus sufficient to effect contraction of a loaded muscle, wherein the method comprises the steps of providing an electrical transmission for effecting contraction of the loaded muscle, transmitting sufficient electrical stimulation to the muscle to contract it for a predetermined short period of time, and ceasing transmission of the stimulus to the muscle for a predetermined longer period of muscle relaxation, whereby the predetermined period of relaxation is sufficient to minimize muscle fatigue and cause sustained reoxygenation.12-13-2012
20120316627ELECTRODE LEAD INCLUDING A DEPLOYABLE TISSUE ANCHOR - An electrode lead comprises a tubular lead body, an electrode supported by the lead body, a rotatable member, a deployable member and a deployment mechanism. The rotatable member is contained within a distal end of the tubular lead body. The deployable member is attached to the rotatable member and comprises a tissue anchor. The deployment mechanism is configured to drive the deployable member along a central axis and out the distal end of the tubular lead body responsive to rotation of the rotatable member about the central axis. In one embodiment, the deployable member does not rotate about the central axis with the rotation of the rotatable member.12-13-2012
20100049287Porous medical dorsal column self anchoring lead - Implantable leads for use in, inter alia, neurostimulation therapy and that comprise a coagulant reservoir accessible by a coagulant access port are disclosed. The coagulant reservoir comprises a porous membrane. When such a lead is implanted into a patient, coagulant fluid (preferably blood plasma) is injected or otherwise inserted into the coagulant reservoir via the coagulant access port. Coagulant fluid can then flow out of the coagulant reservoir, via coagulant apertures in the porous membrane, into the patient's body. Systems comprising such leads are also disclosed, as are methods of manufacturing such systems and/or leads.02-25-2010
20100280583Electrode Element, Electrode Lead Comprising An Electrode Element, Method For The Production Of An Electrode Lead - An electrically active electrode element for an implantable electrode lead, having an electrode, which includes an electrically active electrode surface facing toward the outside, and an elongated electric feed line, which is capable of establishing an electric connection to an electrically active implant at the proximal end thereof, and which is embodied as an electrically conducting cable end-to-end, wherein the cable forms the electrode at the distal end thereof. A related electrode lead having such an electrode element is provided, and a method for the production of said electrode line utilizing the electrode element is also provided.11-04-2010
20100298918Various Apparatus and Methods for Deep Brain Stimulating Electrodes - A deploying deep brain stimulating probe with a shaft, at least one opening on said shaft, at least one extendable tendril, said tendril deploying from said shaft into surrounding tissue through said opening and an electrode disposed on said tendril.11-25-2010
20100298917Various Apparatus and Methods for Deep Brain Stimulating Electrodes - A deploying deep brain stimulating probe with a shaft, at least one opening on said shaft, at least one extendable tendril, said tendril deploying from said shaft into surrounding tissue through said opening and an electrode disposed on said tendril.11-25-2010
20120179233RF REJECTING LEAD - A lead assembly for an implantable medical device includes a lead body having a first portion and a second portion. The first portion adapted for coupling to a pulse generator and the second portion is adapted for implantation. First and second co-radial conductive coils are positioned within the lead body and electrically isolated from each other. The first and second conductive coils each including a plurality of turns. Two or more adjacently wound consecutive turns of the first conductive coil alternate with two or more adjacently wound consecutive turns of the second conductive coil.07-12-2012
20100274335LEAD WITH TERMINAL CONNECTOR ASSEMBLY - A lead includes a lead body extending from a distal end to a proximal end, and at least one conductor disposed within the lead body and extending from the distal end to the proximal end of the lead body. The lead further includes an outer terminal ring, a terminal pin, and an insulative sleeve disposed between the outer terminal ring and the terminal pin, where the insulative sleeve is coupled with the outer terminal ring with a snap-fit connection. A pin latch is disposed on an outer periphery surface of the insulative sleeve, where the pin latch is rotatable about a hinge point.10-28-2010
20100274334MULTI-ZONE LEAD COATINGS - Multi-zone surface treatments for medical electrical leads are provided for treating an intravenous zone, an intracardiac zone and/or a tip zone of a lead with multiple surface modifications to achieve distinct performance characteristics.10-28-2010
20100010601Self-Aligning Latch-up Mechanism in Out of Plane Silicon Microelectrode Arrays - The present invention provides microelectrode array stabilizing devices and associated methods. A microelectrode array stabilizing device includes a first microelectrode array substrate having a plurality of first microelectrodes configured to penetrate tissue. A plurality of first interlocking structures are coupled to the first microelectrode array substrate, with each of the plurality of first interlocking structures including a first interlocking mechanism at a distal end. The device may further include a second microelectrode array substrate which optionally has a plurality of second microelectrodes configured to penetrate tissue. A plurality of second interlocking structures are coupled to the second microelectrode array substrate, each of the plurality of second interlocking structures including a second interlocking mechanism at a distal end. The second interlocking mechanism is complimentary to the first interlocking mechanism. The first microelectrode array and the second microelectrode array are configured to self-align and couple together with the first interlocking mechanism secured to the second interlocking mechanism.01-14-2010
20100010600 PIEZOELECTRIC SENSOR, A METHOD FOR MANUFACTURING A PIEZOELECTRIC SENSOR AND A MEDICAL IMPLANTABLE LEAD COMPRISING SUCH A PIEZOELECTRIC SENSOR - In a piezoelectric sensor, a method for the manufacture thereof, and an implantable lead embodying such a piezoelectric sensor, a layer of piezoelectric material, having aligned, polarized dipoles, is applied to a tubular supporting substrate, the layer of piezoelectric material having at least one electrode at an outer surface thereof and at least one electrode at an inner surface thereof. The piezoelectric material is applied on the inner circumference of the tubular supporting substrate.01-14-2010
20100010602RF REJECTING LEAD - A lead assembly for an implantable medical device. The lead assembly comprises a lead body having a first portion and a second portion. The first portion is adapted for coupling to a pulse generator and the second portion is adapted for implantation in or near a heart. First and second co-radial conductive coils are positioned within the lead body and electrically isolated from each other. The first and second conductive coils include a first and second number of coil turns and the first number is substantially equivalent to the second number. A ring electrode is located at the second portion and a tip electrode is located distal to the ring electrode and coupled to the second conductive coil.01-14-2010
20120221085ACTIVE FIXATION IMPLANTABLE MEDICAL LEAD - An implantable medical lead has a distal lead portion with a tubular header and a fixation helix provided in a lumen of the tubular header. The fixation helix is connected to a shaft attached to a conductor coil. A tubular coupling is connected to the tubular header and is coaxially arranged relative the shaft, with the shaft in its lumen. Rotation of the conductor coil causes rotation of the shaft and the fixation helix and longitudinal movement of the fixation helix out of the implantable medical lead by a rotation-to-translation transforming element. A friction device is arranged between the shaft and the tubular coupling or between the tubular header to oppose rotation of the shaft relative the tubular header and the tubular coupling.08-30-2012
20120191168Medical Device for Electrical Stimulation - The present invention relates to a medical device (07-26-2012
20120191167SYSTEMS AND METHODS FOR MAKING AND USING ELECTRICAL STIMULATION SYSTEMS WITH IMPROVED RF COMPATIBILITY - An implantable electrical stimulation lead includes a plurality of conductors that extend along a lead body and that electrically couple electrodes to terminals. A first tissue coupler is electrically coupled to a first conductor of the plurality of conductors. The first tissue coupler includes a conductive first inner member, a non-conductive member disposed adjacent to at least a portion of the first inner member, and a conductive outer member disposed adjacent to at least a portion of the non-conductive member such that at least a portion of the non-conductive member is sandwiched between the first inner member and the outer member. The first inner member is electrically coupled to the first conductor. The outer member is disposed along a portion of an outer surface of the lead body such that the conductive outer member is exposed to patient tissue when the lead is implanted in a patient.07-26-2012
20120232632 MEDICAL IMPLANTABLE LEAD - The present invention relates to a medical implantable lead having a coaxial structure, where an insulating tube arranged between an inner coil and an outer coil is provided with a periodically alternating capacitance along the length thereof in order to reduce lead tip heating during MRI scanning.09-13-2012
20120232628DRUG ELUTING LEAD SYSTEMS - Medical electrical lead systems and related methods are described. The lead systems may be configured to be at least partially implanted in neural tissue of a subject, such as a brain of a subject. Some variations of the lead systems may comprise a lead body, an electrode connected to the lead body, and a bioactive agent. The electrode and/or lead body may comprise a substrate, and the bioactive agent may be supported by the substrate (e.g., by a substantial portion of the area of the substrate). Methods described herein may comprise contacting the substrate of a lead body and/or an electrode of a medical electrical lead system with at least one bioactive agent, where the lead body and the electrode are connected to each other.09-13-2012
20120232624ANCHOR FOR IMPLANTABLE MEDICAL DEVICE - An anchor for an implantable medical device, anchor delivery tools, kits, and methods, all directed to securing a therapy delivery element at a target location in a patient. An anchor for a therapy delivery element having an outer surface about which the anchor is disposable. The anchor includes a body portion having elastomeric properties, a first opening, a second opening, and a non-linear lumen extending though the body portion from the first opening to the second opening in a relaxed state. The non-linear lumen becomes a linear lumen in a stretched state. The linear lumen of the body portion is adapted to receive the therapy delivery element and the non-linear lumen frictionally engages the outer surface of the therapy delivery element in the relaxed state.09-13-2012
20120232625IMPLANTABLE LEAD WITH BRAIDED CONDUCTORS - A therapy delivery element adapted to be implanted into a living body. The therapy delivery element includes an electrode portion with a plurality of electrodes. At least one elongated lead body is attached to the electrode portion. The elongated lead body includes a stylet coil having a stylet coil lumen. The stylet coil extends within the elongated lead body and along at least a portion of the electrode portion. A conductor assembly with a plurality of insulated electrical conductors is braided to extending around the stylet coil and to electrically couple to one or more of the electrodes. The conductor assembly includes an inner lumen with a diameter greater than an outside diameter of the stylet coil. Axial elongation of the elongated lead body reduces the inner diameter of the conductor assembly. A low durometer insulator extends around the conductor assembly. A stylet sized to slide freely within the stylet coil lumen is provided for use during implantation of the therapy delivery element into the living body.09-13-2012
20120232626ANCHOR SLEEVE FOR IMPLANTABLE LEAD - An anchor sleeve for securing a therapy delivery element, such as a stimulation lead or catheter, within a living body, that includes an inner sleeve with pre-formed locations of weakness that facilitate localized deformation. The anchor includes a deformable outer sleeve with a primary lumen extending along an axis. The outer surface of the outer sleeve includes a plurality of suture grooves oriented generally concentric to the axis. The inner sleeve includes a plurality of beams connected at deflection regions arranged around a secondary lumen. The inner sleeve is located in the primary lumen adjacent to the suture grooves so that the secondary lumen is generally concentric with the primary lumen. A plurality of locations of weakness are preformed in each of the beams to facilitate localized deformation in response to a radially inward force applied around the suture grooves by a suture material.09-13-2012
20110004282Drug Eluting Lead Systems - Medical electrical lead systems and related methods are described. The lead systems may be configured to be at least partially implanted in neural tissue of a subject, such as a brain of a subject. Some variations of the lead systems may comprise a lead body, an electrode connected to the lead body, and a bioactive agent. The electrode and/or lead body may comprise a substrate, and the bioactive agent may be supported by the substrate (e.g., by a substantial portion of the area of the substrate). Examples of bioactive agents that may be used in the lead system include bioactive agents that promote neural adhesion and living cells that have been biologically manipulated, engineered cells, and cells of a particular phenotype and/or adapted to induce a desired neural or glial response. Methods described herein may comprise contacting the substrate of a lead body and/or an electrode of a medical electrical lead system with at least one bioactive agent, where the lead body and the electrode are connected to each other.01-06-2011
20110004281IMPLANTABLE ANCHOR WITH LOCKING CAM - There is disclosed various embodiments of an implantable anchor for anchoring a medical lead within a patient. The implantable anchor includes a body having at least one lumen for receiving a medical lead, a cam integrated with the body and rotatable to extend into the lumen for engaging the medical lead and inhibiting the movement of the lead with respect to the anchor. The cam may include a handle for facilitating the rotation of the cam. A needle could be connected to the handle to facilitate the securing of the anchor to a portion of the patient.01-06-2011
20120239125Flexible Circuit Electrode Array for Improved Layer Adhesion - The present invention is a flexible circuit electrode array for improved layer adhesions where the metal conductors overlap the polymer insulator. The steps to build the flexible circuit are as follows. Deposit a base polymer layer. Deposit a conductive trace over the base polymer layer. Deposit a top polymer layer over the trace and prepare a void in the top polymer layer smaller than the surface of the trace. Deposit an electrode on the trace through the void with a periphery larger than, and overlapping the void.09-20-2012
20110130818ELECTRODE ARRAY HAVING CONCENTRIC SPLIT RING ELECTRODES AND METHODS OF MAKING THE SAME - 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.06-02-2011
20110130816ELECTRODE ARRAY WITH ELECTRODES HAVING CUTOUT PORTIONS AND METHODS OF MAKING THE SAME - A lead for brain stimulation includes a lead body having a distal end. At least one cable extends within the lead body, each cable comprising at least one conductor. The lead further includes a plurality of electrodes coupled to the at least one cable. Each of the plurality of electrodes defines a cutout portion that receives and attaches to a one of the at least one cable.06-02-2011
20120265280Electrical Stimulation Treatment of Hypotension - The present invention includes methods and devices for treating hypotension, such as in cases of shock, including septic shock, anaphylactic shock and hypovolemia. The method includes the step of applying at least one electrical impulse to at least one selected region of a parasympathetic nervous system of the patient. The electrical impulse is sufficient to modulate one or more nerves of the parasympathetic nervous system to increase the ratio of blood pressure to heart rate and relieve the condition and/or extend the patient's life.10-18-2012
20120265279SENSING DEVICE FOR INDICATING POSTURE OF PATIENT IMPLANTED WITH A NEUROSTIMULATION DEVICE - An implantable medical device comprises a medical component configured for performing a medical function in a patient, an orientation sensitive component including a housing having a cavity, a movable object configured for being displaced within the cavity in response to the change in the direction of a force applied to the movable object, and a plurality of fixed sensors spaced apart within the cavity for sensing a location of the movable object within the cavity, and monitoring circuitry configured for determining the orientation of the implantable medical device based on the sensed location of the movable object.10-18-2012
20090248124LEAD IDENTIFIER FOR AN IMPLANTABLE ELECTRIC STIMULATION SYSTEM AND METHODS OF MAKING AND USING - A lead includes a lead body with a distal end and at least one proximal end. The lead includes at least one lead identifier disposed on the lead body. The lead identifier is configured and arranged to visually identify the end of the lead body on which the at least one lead identifier is disposed. The at least one lead identifier includes at least one of a markable-surface-finish region suitable for marking with a pen, at least one laser-ablated identification marking, at least one contrasting band of material formed of a conspicuous color, at least one conspicuously-colored spacer disposed between two adjacent terminals of at least one of the at least one proximal end of the lead body, or a conspicuously-colored proximal tip disposed on at least one of the at least one proximal end of the lead body.10-01-2009
20110046707MRI COMPATIBLE ELECTRODE CIRCUIT - An MRI compatible electrode circuit construct is provided. The construct includes at least two filter components constructed from an electrode wire. One filter component may be a resonant LC filter at or near an electrode/wire interface that resolves the issue of insufficient attenuation by effectively blocking the RF induced current on the wire from exiting the wire through the electrode. The second filter component may include one or more non-resonant filter(s) positioned along the length of the electrode wire that resolve(s) the issue of excessive heating of the resonant LC filter by significantly attenuating the current induced on the wire before it reaches the resonant LC filter. The non-resonant filter(s) may also attenuate the RF current reflected from the resonant LC filter thereby resolving the issue of the strong reflected power from the resonant filter and the associated dielectric heating.02-24-2011
20120330390Medical devices and implants from Ta-Nb-W alloys - The present invention relates to a medical device or implant made at least in part of a high-strength, low-modulus metal alloy comprising niobium, tantalum, and at least one element selected from the group consisting of zirconium, tungsten, and molybdenum. The medical devices according to the present invention provide superior characteristics with regard to biocompatibility, radio-opacity and MRI compatibility.12-27-2012
20120271391Surgically Implantable Electrodes - The present inventions provide for paddle lead electrodes that are capable of performing peripheral nerve stimulation, thereby modulating, controlling and/or reducing neuropathic pain in a patient, that are also surgically implantable, and that will remain fixed in place at the site of implantation when in use. More specifically, one or more embodiments of the electrodes of the present inventions are capable of being surgically implanted underneath a sheath of protective connective tissue that covers electrically excitable tissues and are adapted to electrically stimulate those tissues. Electrodes contemplated by embodiments of the present inventions are particularly well suited for perineurial implantation. Embodiments of the present inventions include methods of use associated with the electrodes.10-25-2012
20120271388POLYURETHANE HEADER FORMED DIRECTLY ON IMPLANTABLE ELECTRICAL DEVICES - This invention relates to electrical devices that are implantable inside an animal, including humans. The invention particularly relates to polyurethane headers mounted on the electrical devices to house electrical contacts. The polyurethane headers are formed by (a) mixing (i) a prepolymer comprising a silicon-containing diol of formula (I) in which R10-25-2012
20110238146RF REJECTING LEAD - A lead assembly for an implantable medical device includes a lead body having a first portion adapted for coupling to a pulse generator and a second portion adapted for implantation. First and second co-radial conductive coils are electrically isolated from each other and include a first and second number of coil turns. The first and second number of coil turns include a number of matched turns and a number of unmatched turns, and the number of unmatched turns is less than approximately 2.0% of the total number of unmatched and matched turns. First and second electrodes located at the second portion are respectively coupled to the first and second conductive coils. At least one capacitor element is connected in parallel with one or both of the first and second conductive coils and/or between the first and second conductive coils.09-29-2011
20110238145STIMULATION LEAD COMPRISING INTERNAL FLEX FILM COMPONENT AND METHOD OF FABRICATION - In one embodiment, a stimulation lead for applying electrical pulses to tissue of a patient, the stimulation lead comprises: a plurality of electrodes on a first end of the lead body; a plurality of terminals on a second end of the lead body; a lead body comprising a flex film component disposed within insulative material, wherein (i) the flex film component comprises a plurality of electrical traces, (ii) the plurality of electrical traces electrically couple the plurality of electrodes with the plurality of terminals, and (iii) the flex film component comprises a plurality of bends along a substantial length of the lead body; wherein the stimulation lead is adapted to elastically elongate under application of stretching forces to the lead body without disconnection of the electrical connections between the plurality of electrodes and the plurality of terminals through the electrical traces of the flex film component.09-29-2011
20100234929THIN PROFILE CONDUCTOR ASSEMBLY FOR MEDICAL DEVICE LEADS - A medical device lead includes a thin profile conductor assembly. A proximal connector includes a proximal end that is configured to couple the lead to a pulse generator. An insulative lead body extends distally from the proximal connector. The conductor assembly extends distally from the proximal end within the lead body and includes a non-conductive tubular core member that defines a lumen, an outer insulative layer, and a multilayer conductor between the tubular core member and the outer insulative layer. The multilayer conductor is electrically connected to the proximal connector and includes a first conductive layer adjacent to the tubular core member and a second conductive layer adjacent to the first conductive layer opposite the tubular core member. A conductivity of the second conductive layer is greater than a conductivity of the first conductive layer.09-16-2010
20120277838METHOD FOR FABRICATING A NEUROSTIMULATION LEAD CONTACT ARRAY - A lead includes a lead body defining a lumen extending through the lead body; a conductor disposed in the lumen; a slit extending from an exterior of the lead body through at least a portion of the lead body to the lumen; and a contact strip. A portion of the contact strip is optionally disposed in the slit and is in contact with a portion of the conductor. A second portion of the contact strip is optionally wrapped around the lead body. A method of making a lead includes disposing one or more conductors in a lumen of a lead body; forming a slit from an exterior of the lead body to the lumen to access a portion of at least one conductor disposed in the lumen; coupling a flat contact strip to the portion of the conductor, and wrapping the contact strip around the lead body.11-01-2012
20110264179MEDICAL IMPLANTABLE LEAD AND A METHOD FOR ENSURING PROPER AND SAFE ATTACHMENT OF SUCH A LEAD TO AN ORGAN - A medical implantable lead of the kind being adapted to be implanted into a human or animal body for monitoring and/or controlling of an organ inside the body has a penetrating fixation element in a distal end, which is adapted to penetrate into the tissue of the organ to fixate the lead such that a distal end of the lead will be in contact with the organ. The lead also has an electrode member to receive and/or transmit electrical signals from and/or to the organ. The lead has in a distal portion a movable member, which is displaceable in an axial direction of the lead and is actuated by a resilient member to be, in an initial state, maximally protruded in a distal direction in relation to the lead and which comprises a radiopaque material for forming of a first indication marker. The lead also has a second indication marker of a radiopaque material in relation to which the movable member is displaceable, and the first and the second indication markers are arranged such that, when observing the lead in an implanted state by means of fluoroscopy, it will be recognizable from the relative positions of the first and second indication markers, whether the distal end of the lead is in close contact with the surface of the tissue or not. A comparable method ensures proper and safe attachment of a medical implantable lead to an organ.10-27-2011
20110276117ELECTRICAL STIMULATION SYSTEM AND ASSOCIATED APPARATUS FOR SECURING AN ELECTRICAL STIMULATION LEAD IN POSITION IN A PERSONS BRAIN - In one aspect, an apparatus is provided for securing an electrical stimulation lead in position in a person's brain. The apparatus includes a flexible disc comprising a substantially radial slot adapted to secure the lead in position within the brain after implantation. The slot is adapted to elastically expand as the lead is inserted into the slot and is also adapted to elastically contract on the lead to secure the lead in position within the brain after implantation. The apparatus further includes a ring adapted to seat within a burr hole formed in the person's skull. The ring comprises a channel adapted to receive and secure the flexible disc.11-10-2011
20110276116ELECTRODE LEAD IN PARTICULAR FOR USE WITH A MEDICAL IMPLANT - A flexible electrode lead in particular for use with a medical implant comprises, an elongated electrode body with a proximal and a distal end, at least one conductor leading from the proximal towards the distal end of the electrode lead, a first ring element at the distal end of the electrode lead connected to the conductor and being positioned coaxially in the lead electrode body a second ring element spaced distally of the first ring element and being positioned coaxially in the lead electrode body, a coil conductor between the first and second ring element, wherein the coil conductor is adapted to form an inductance which is in parallel circuitry with the capacitor to form a filter element in the conductor, and the first ring element, the coil conductor and the second ring element comprise a central feedthrough for a guidance element for the electrode lead.11-10-2011
20120095539Delivery Catheter Systems and Methods - A leadless cardiac pacemaker comprises a housing, a plurality of electrodes coupled to an outer surface of the housing, and a pulse delivery system hermetically contained within the housing and electrically coupled to the electrode plurality, the pulse delivery system configured for sourcing energy internal to the housing, generating and delivering electrical pulses to the electrode plurality. Systems and methods for delivering the leadless cardiac pacemaker with delivery catheters are also provided. In some embodiments, the delivery catheters include first and second coaxial shafts configured to apply rotational torque to the pacemaker. In other embodiments, the pacemaker is held in place on the catheter with a tether.04-19-2012
20100185268IMPLANTABLE MEDICAL DEVICES AND ASSOCIATED SYSTEMS AND METHODS - Implantable medical devices and associated systems and methods are disclosed. An implantable device in accordance with one embodiment can include a signal generator positioned to be implanted in a patient. The signal generator includes a housing and a plurality of selectively electrically activatable portions at an external surface of the housing. The implantable device can also include a remote electrode device having at least one electrode positioned to be implanted beneath the patient's skull, and a lead coupleable to the electrode device and the signal generator.07-22-2010
20110319973ASSEMBLY KIT FOR CREATING PADDLE-STYLE LEAD FROM ONE OR SEVERAL PERCUTANEOUS LEADS AND METHOD OF LEAD IMPLANTATION - In one embodiment, an assembly for conducting pulses from an implantable pulse generator, comprises: at least one percutaneous lead comprising terminals and at least two groups of electrodes, each group of electrodes possessing an intra-group electrode spacing; a frame member comprising first and second arms, the frame member comprising an inner lumen for removably housing the at least one percutaneous lead, each arm of the first and second arms comprising a plurality of apertures that are spaced according to the intra-group electrode spacing to allow conduction of electrical pulses from the electrodes of the at least one percutaneous lead to tissue of the patient when the lead is positioned within the frame member; and a spring member that is connected to the frame member for maintaining the first and second arms of the frame member at a predetermined distance in the absence of an external force on the spring member.12-29-2011
20120290056Implantable Medical Lead - An implantable medical lead for transmitting electrical pulses to excitable bodily tissue and/or signals detected at bodily tissue to a detection and evaluation unit, including a distal electrode or a distal sensor, or actuator; a proximal electrode connector or sensor/actuator connector; and a lead pole which connects the electrode or the sensor or actuator to the electrode connector or sensor/actuator connector and extends in the lead body, wherein the lead pole comprises at least two separate and individually insulated conductors which are electrically interconnected at least at one point which functions as an interchange point, or reversal point, in the lead extension from the proximal electrode or sensor connector to the distal electrode or the distal sensor, and wherein at least one of the separate conductors, in particular close to the reversal point, is interrupted at least once and/or is not connected at one end.11-15-2012
20120290055SYSTEMS AND METHODS TO PLACE ONE OR MORE LEADS IN TISSUE TO ELECTRICALLY STIMULATE NERVES TO TREAT PAIN - It has been discovered that pain felt in a given region of the body can be treated, not by motor point stimulation of muscle in the local region where pain is felt, but by stimulating muscle spaced from a “nerve of passage” in a region that is superior (i.e., cranial or upstream toward the spinal column) to the region where pain is felt. Spinal nerves such as the intercostal nerves or nerves passing through a nerve plexus, which comprise trunks that divide by divisions and/or cords into branches, comprise “nerves of passage.”11-15-2012
20120290053RENAL NERVE STIMULATION LEAD, DELIVERY SYSTEM, AND METHOD - A lead for nerve modulation comprises an elongated body which includes a proximal end, a distal portion having a distal end, and an intermediate portion disposed between the proximal end and the distal portion. The distal portion includes a distal portion anchoring mechanism to anchor the distal portion to a first biological cavity of a patient. The intermediate portion includes an intermediate portion anchoring mechanism to anchor the intermediate portion to a second biological cavity of the patient. The intermediate portion anchoring mechanism is larger in lateral dimension than and is spaced from the distal portion anchoring mechanism. The distal portion and/or the intermediate portion includes a plurality of modulation electrodes. The distal portion anchoring mechanism and/or the intermediate portion anchoring mechanism is configured to position the modulation electrodes to contact tissue of the patient at multiple locations.11-15-2012
20120290058METHODS AND SYSTEMS FOR THE TREATMENT OF ANXIETY DISORDERS AND DISORDERS WITH PSYCHOTIC FEATURES - Methods and systems for treating anxiety disorders and disorders with psychotic features include implanting at least one electrode in the patient so as to contact a predetermined region of the brain, coupling the at least one electrode to a signal generating source and transmitting an electrical signal from the source to the predetermined region of the brain through the at least one electrode. In one aspect, the predetermined region of the brain is the amygdala, and more specifically, the basolateral nucleus.11-15-2012
20100168829SYSTEM FOR IMPLANTING, ACTIVATING, AND OPERATING AN IMPLANTABLE BATTERY - The present invention is apparatus, systems, and methods for the treatment of bone, cartilage and other types of hard tissue. The treatments, which are suitable for extended treatment, include the treatment and prevention of pathologies through the controllable use of silver, iron, zinc, or magnesium ions. These pathologies may include a pathology which is at least partially induced or aggravated by an infectious disease, for example a bacterial disease. In this case the electrically released ions are silver ions, which are known to have antibacterial properties.07-01-2010
20100168828IMPLANTABLE BIOMEDICAL CHIP WITH MODULATOR FOR A WIRELESS NEURAL STIMULATION SYSTEM - The invention relates to an implantable biomedical chip with modulator for a wireless neural stimulating system. The implantable biomedical chip comprises a power regulator, a demodulator, a baseband circuit, a D/A converter, an instrumentation amplifier, an A/D converter and a modulator. According to the invention, the modulator is mounted on the implantable biomedical chip, and can achieve full-duplex communication to improve the controllability and observability. Besides, the power consumption and area occupation is reduced as compared with using discrete components. Therefore, the integration of the implantable biomedical chip can be easily accomplished.07-01-2010
20100168830High Density Array of Micro-Machined Electrodes for Neural Stimulation - The present invention is a micro-machined electrode for neural-electronic interfaces which can achieve a ten times lower impedance and higher charge injection limit for a given material and planar area.07-01-2010
20130013038Isolating Lead Body for Fault Detection - Techniques are described for detecting lead-related conditions for implantable electrical leads. In some of the described embodiments, an implantable electrical lead assembly is provided with a coupling member for connecting a conductor and associated insulator(s) to an electrode/sensing element. The implantable medical device controls and performs a measurement of an electrical property of the electrical lead during periods when the conductor is decoupled from the electrode/sensing element. An indication of a lead-related condition is derived based on the measured electrical property. The lead-related condition may be associated with an insulator of a lead body of the electrical lead.01-10-2013
20130013042SELF-SEALING SEPTUM ASSEMBLY - Exemplary septum assemblies include first and second housing components each defined by at least an inner surface, at least one sealing strip disposed at least partially on at least one of the inner surfaces of the housing components, and a compression member at least partially surrounding the housing components.01-10-2013
20130013043RETENTION ASSEMBLIES FOR IMPLANTABLE ELECTRIC STIMULATION SYSTEMS AND METHODS OF MAKING AND USING - A connector assembly includes a lead or a lead extension, a connector, and a retention assembly disposed in the connector. The connector includes a connector housing defining a port at a distal end of the connector, and a plurality of connector contacts disposed in the connector housing. The port is configured and arranged for receiving a proximal end of the lead or the lead extension. The connector contacts are configured and arranged to couple to at least one terminal disposed on the proximal end of the lead or the lead extension. The retention assembly includes a retention mechanism that can be engaged and reversibly disengaged without the use of tools beyond conventional operating-room surgical instruments.01-10-2013
20130013040POLYISOBUTYLENE URETHANE, UREA AND URETHANE/UREA COPOLYMERS AND MEDICAL DEVICES CONTAINING THE SAME - The present invention pertains to polyisobutylene urethane, urea and urethane/urea copolymers, to methods of making such copolymers and to medical devices that contain such polymers. According to certain aspects of the invention, polyisobutylene urethane, urea and urethane/urea copolymers are provided, which comprise a polyisobutylene segment, an additional polymeric segment that is not a polyisobutylene segment, and a segment comprising a residue of a diisocyanate. According to other aspects of the invention, polyisobutylene urethane, urea and urethane/urea copolymers are provided, which comprise a polyisobutylene segment and end groups that comprise alkyl-, alkenyl- or alkynyl-chain-containing end groups.01-10-2013
20130013039DIRECTIONAL STIMULATION LEAD AND ORIENTATION SYSTEM - A lead, method of manufacturing same, and system for stimulation is provided. The lead includes an insulative member or layer that masks a portion of the electrode(s) to effectively generate a directional lead that focuses or directs the stimulation to desired location(s). In another embodiment, the lead further includes a marking system to allow a clinician to orient the directional lead, as desired, while the lead is within a body.01-10-2013
20120150270Flexible Circuit Electrode Array Device and a Method for Backside Processing of a Flexible Circuit Electrode Device - The invention involves a flexible circuit electrode array device comprising: a polymer layer; wherein the polymer layer includes one or more metal traces, an electrode array; one or more bond pads; and the electrode array is located on the opposite side of the polymer layer.06-14-2012
20130018446ELECTRODE ARRAY WITH ELECTRODES HAVING CUTOUT PORTIONS AND METHODS OF MAKING THE SAME - A lead for brain stimulation includes a lead body having a distal end. At least one cable extends within the lead body, each cable comprising at least one conductor. The lead further includes a plurality of electrodes coupled to the at least one cable. Each of the plurality of electrodes defines a cutout portion that receives and attaches to a one of the at least one cable.01-17-2013
20130018444INTRAVASCULAR ELECTRODES FOR TRANSVASCULAR STIMULATIONAANM Glenn; Richard A.AACI Santa RosaAAST CAAACO USAAGP Glenn; Richard A. Santa Rosa CA USAANM Smith; Jeffrey A.AACI PetalumaAAST CAAACO USAAGP Smith; Jeffrey A. Petaluma CA USAANM Orth; Geoffrey A.AACI SebastopolAAST CAAACO USAAGP Orth; Geoffrey A. Sebastopol CA USAANM Williams; Michael S.AACI Santa RosaAAST CAAACO USAAGP Williams; Michael S. Santa Rosa CA USAANM Holbrook; KevinAACI Santa RosaAAST CAAACO USAAGP Holbrook; Kevin Santa Rosa CA US - An intravascular electrode device for use in neuromodulation includes an anchor expandable from a radially compressed position to a radially expanded position. A lead extends from the anchor and has at least one conductor extending through it. A flex circuit is coupled to the anchor and comprises a flexible insulative substrate, a plurality of electrodes carried by the substrate, and a plurality of conductive traces carried by the substrate, each trace electrically coupled to an electrode and a conductor. Expansion of the anchor within a blood vessel biases the electrodes into contact with the surrounding blood vessel wall.01-17-2013
20130018445NEUROSTIMULATION LEAD - Improved electrical stimulation leads are disclosed. Such leads may be provided with a distal electrode and electrode retention elements, such as tissue anchors. The electrode may be electrically coupled to an electrical connector that is disposed at a proximal end of the lead through one or more cables, which may conduct electricity through one or more conductive strands. The electrode may be formed from an extension of one of such cables coiled about a portion of the lead body.01-17-2013
20110160825IMPLANTABLE LEADS WITH A CONDUCTOR COIL HAVING TWO OR MORE SECTIONS - Various coiled conductors having two or more sections and methods and devices for constructing such conductors are disclosed. The various embodiments of coiled conductors and related methods include two or more sections that can have different mechanical, structural, and/or electrical characteristics.06-30-2011
20110160824MULTI-FUNCTION LEAD IMPLANT TOOL - Devices, systems, and methods for implanting and testing multi-conductor electrical leads are disclosed. An illustrative implant tool for use with an implantable lead includes a main body, a plurality of spring contact members, and a knob mechanism. The main body of the implant tool includes a distal clamping mechanism with an opening adapted to frictionally receive a terminal boot of the implantable lead. The spring contact members are configured to provide an interface for connecting electrical connectors from a Pacing System Analyzer (PSA) or other testing device to the terminal contacts on the implantable lead. A knob mechanism coupled to the main body can be actuated to engage a terminal pin of the implantable lead, allowing an implanting physician to engage a fixation helix into body tissue by rotating the mechanism.06-30-2011
20110160823IMPLANTABLE LEADS WITH A LOW COEFFICIENT OF FRICTION MATERIAL - A method of reducing a coefficient of friction between a medical electrical lead and a delivery system includes machining a mold for a lead, roughening at least a portion of the mold to an average surface roughness of at least about 7 micro-inches and injecting a polymer into the roughened mold to form a roughened portion of a lead body.06-30-2011
20110160822IMPLANTABLE LEAD ELECTRODE WITH ASYMETRICALLY DISTRIBUTED CURRENT DENSITY AND METHODS FOR IMPARTING CURRENT DENSITY DIRECTIONALITY IN LEAD ELECTRODES - Lead electrodes having an asymmetrically distributed current density and methods for imparting current density directionality in lead electrodes are described. An implantable medical lead includes a lead body having a proximal section that connects to another implantable device and a distal section having a pre-biased shape configured to secure the lead to an inner wall of a body vessel. An electrode coupled to the distal section of the lead body includes a conductor mass having an asymmetrically distributed current density that imparts a directionality to one or more active portions of the electrode.06-30-2011
20110160821ELECTRODE SURFACE MODIFICATION FOR IMPARTING CURRENT DENSITY DIRECTIONALITY IN LEAD ELECTRODES - An implantable medical lead having a modified electrode surface for imparting current density directionality within an electrode is disclosed. An implantable medical lead includes a lead body having a proximal section and a distal section having a pre-biased shape configured to secure the lead to an inner wall of a blood vessel. An electrode coupled to the distal section of the lead body includes a number of surface features on an inactive portion of the electrode that impart a current density directionality towards an active portion of the electrode that contacts the inner wall of the vessel. Methods for imparting current density directionality within an implantable lead electrode are also disclosed.06-30-2011
20110160819IMPLANTABLE LEADS WITH OPTIMIZED LEAD BODY CROSS-SECTION CONFIGURATION - The embodiments herein relate to medical lead body configurations that reduce conductor flexural fatigue. The various lead body embodiments include a support section and can also include other features such as a semi-straight portion of a lumen or semi-straight sides that optimize the reduction in conductor flexural fatigue.06-30-2011
20110160817MRI SAFE, MULTIPOLAR ACTIVE FIXATION STIMULATION LEAD WITH CO-RADIAL CONSTRUCTION - Various embodiments relating to MRI safe, multi-polar active fixation stimulation leads with co-radial construction are disclosed. Some embodiments, allow the use of the generally smaller diameter co-radially constructed body (coated wires) to construct an active fixation lead, with an extendable/retractable fixation mechanism. Some embodiments use a connector assembly with an inner terminal ring, a terminal pin partially rotatably positioned within the annular inner terminal ring, and one or more resilient C-clips disposed within circumferential recesses. The resilient C-clips mechanically and electrically couple the inner terminal ring and the terminal ring while substantially limiting relative longitudinal translation of the terminal pin. In some embodiments, the connector assembly can be connected to an electrically inactive torque tube disposed longitudinally within the flexible body of the lead such that rotation of the terminal pin relative to the lead body causes rotation and longitudinal translation of a fixation helix relative to the body.06-30-2011
20110160816APPARATUS TO SELECTIVELY INCREASE MEDICAL DEVICE LEAD INNER CONDUCTOR INDUCTANCE - A medical device lead includes an insulative lead body, outer and inner conductive coils, and a flexible core assembly. The outer conductive coil extends through the lead body and is coupled to a first electrode at a distal end of the outer conductive coil. The inner conductive coil extends coaxially with the outer conductive coil, is coupled to a second electrode at a distal end of the inner conductive coil, and includes a central lumen. The flexible core assembly is disposed in the central lumen and is comprised of a material that has a saturation magnetization of at least about 1.5 T and a relative permeability of greater than one. The flexible core assembly includes a positioning interface configured for manipulation of the flexible core assembly such that the flexible core assembly translates through the central lumen during insertion and extraction of the flexible core assembly.06-30-2011
20130023973HIGH DENSITY IMPLANTABLE CONNECTOR - An implantable connector assembly comprising a first portion having a longitudinal body which includes a transversal protrusion having therein at least one conductive socket, a generally longitudinal wire entry, at least one wire connected to the at least one conductive socket, the at least one wire entering the longitudinal body through the generally longitudinal wire entry, a second portion having a longitudinal body which includes a recess complementary to the transversal protrusion of the first portion, generally longitudinal wire entry, at least one conductive pin positioned within the recess, at least one wire connected to the at least one conductive pin, the at least one wire connected to the conducting pin entering the longitudinal body through the longitudinal wire entry and a sealing assembly. Wherein, in a connected configuration, the transversal protrusion engages the recess causing the at least one conductive pin to enter in contact with the at least one conductive socket, the sealing assembly being positioned between the transversal protrusion and the complementary recess to protect the at least one conductive pin and the at least one conductive socket from liquid infiltration.01-24-2013
20130023972ELECTRODE ARRAY ASSEMBLY AND METHOD OF MAKING SAME - A lead assembly and a method of making a lead are provided. The method of making a multi-contact lead assembly comprises placing monofilament placed in the void spaces not occupied by the plurality of conductor wires and, in one embodiment, thermally fusing the monofilament to the like material spacer by applying heat just below the melting temperature of the monofilament and spacer material. Alternatively, the monofilament and spacer may be of different materials and heat is applied to cause at least one material to thermally reflow or melt. The conductive contacts may be located at either the distal end and/or proximal end of the lead. Oversized spacers may be used in order to provide extra material to fill voids during the thermal fusion/reflow process.01-24-2013
20080243215CONTROLLER FOR A MEDICAL LEAD DELIVERY DEVICE - The medical lead delivery device more easily and quickly delivers a lead to or through the coronary vein of a patient's heart. The medical lead delivery device includes an elongated body, a controller, a first and second spring, and a sleeve. The elongated body includes a proximal end and a distal end. The controller is disposed at the proximal end and provides enhanced control of the distal tip of the elongated body.10-02-2008
20080234790Implantable Stimulation Electrode with a Coating for Increasing Tissue Compatibility - An implantable stimulation electrode for use with an implantable tissue stimulator, especially a pacemaker, a defibrillator, a bone stimulator or a neurostimulator includes a metal base body, optionally one or more intermediate layers disposed on the base body and a coating covering the base body and, optionally, intermediate layers in order to increase tissue compatibility. The coating should prevent tissue irritations after implantation and more particularly increase the stimulus threshold associated therewith, have very high biocompatibility and also has an anti-inflammatory effect. An increase in tissue compatibility is achieved by virtue of the fact that the coating has a polysaccharide layer made of hyaluronic acid and/or hyaluronic acid derivatives.09-25-2008
20130178924ELECTRICAL LEAD FOR AN ELECTRONIC DEVICE SUCH AS AN IMPLANTABLE DEVICE - A lead for an electronic device which resists the induction of a current from an electromagnetic field external to said lead includes one or more pairs of adjacent segments of electrical wire, each of the pairs including a first segment of electrical wire and a second segment of electrical wire. The lead also includes one or more shielded RF chokes, wherein each of the shielded RF chokes is provided between the first segment of electrical wire and the second segment of electrical wire of a respective one of the one or more pairs of adjacent segments. Also, an implantable device that includes a generator for generating one or more electrical pulse and a lead as described for delivering the pulses to tissue within a patient's body. A method for making the described implantable device is also provided.07-11-2013
20120253444IMPLANTABLE MEDICAL LEAD HAVING REDUCED DIMENSION TUBING TRANSITION - Lead body designs for forming a fluid tight seal between a multilumen tube and other portions of a lead body are provided. One lead body design has a multilumen tube having a first portion defining a first number of lumens and a second reduced dimension portion defining a second number of lumens, the second number of lumens being smaller than the first number of lumens. The reduced dimension portion is attached to a distal tip portion of the lead body, forming a fluid tight passageway through the multilumen tube to the distal tip portion. Also provided are methods for forming such multilumen tubes and incorporating such multilumen tubes into a lead body.10-04-2012
20120253443CONNECTOR CARTRIDGE STACK FOR ELECTRICAL TRANSMISSION - Connector assemblies for use with implantable medical devices having easy to assemble contacts are disclosed. The connector assemblies are generally formed by coupling a plurality of ring contacts, sealing rings, and spring contact elements together with at least one holding ring to form a connector having a common bore for receiving a medical lead cable. Contact grooves or spring chambers for positioning the spring contact elements are formed in part by assembling multiple components together. A further aspect is a provision for encasing each connector assembly or stack inside a thermoset layer or a thermoplastic layer before over-molding the same to a sealed housing.10-04-2012
20120253442METHODS AND APPARATUS FOR EFFECTUATING A LASTING CHANGE IN A NEURAL-FUNCTION OF A PATIENT - A device and method for intracranial electrical stimulation to effectuate a change in neural-functions of a patient, by electrical stimulating the brain at a site where neuroplasticity is occurring or is expected to occur, where the stimulation site may be different than the region in the brain where neural activity is typically present to perform the particular neural function according to the functional organization of the brain. In one embodiment in which neuroplasticity is related to the neural-function occurs in the brain, identifying the location where such neuroplasticity is present or expected to occur. Where neuroplasticity is not occurring in the brain, an alternative aspect is to induce neuroplasticity at a stimulation site where it is expected to occur. The methods can use electrical pulses that increase the resting membrane potential of neurons at the stimulation site to a subthreshold level.10-04-2012
20120253437COUPLING MECHANISMS FOR USE WITH A MEDICAL ELECTRICAL LEAD - An implantable medical lead may include components or mechanisms that can reduce the amount of induced current that is conducted to electrodes of the lead. A medical lead may, for example, have an energy dissipating structure that is connected to an electrode of the lead. This disclosure provides for coupling mechanisms to couple current induced on the lead to the energy dissipating structure. The coupling mechanisms described herein provide continuous contact with both electrode shaft and the energy dissipating structure while producing forces on the electrode shaft that is small enough to permit extension and retraction of the electrode from the lead.10-04-2012
20130096658Microlead For Detection/Stimulation, Implantable In Venous, Arterial Or Lymphatic Networks - A microlead implantable in a patient's venous, arterial or lymphatic networks for the detection and/or stimulation of tissue. The microlead has a diameter at most equal to 2 French (0.66 mm) and comprises at least one microcable (04-18-2013
20130096661Package for an Implantable Device - The present invention is an implantable electronic device formed within a biocompatible hermetic package. Preferably the implantable electronic device is used for a visual prosthesis for the restoration of sight in patients with lost or degraded visual function. The package is formed from a thin film of hermetic biocompatible material to minimize the size of the implanted device.04-18-2013
20130096660IMPLANT HAVING THREE-DIMENSIONAL SHAPE FOR ELECTRICALLY STIMULATING A NERVE STRUCTURE - The invention relates to an implant which includes, in order to electrically stimulate a nerve structure, in particular the retina, an electrically insulating substrate (04-18-2013
20130096659SYSTEMS AND METHODS FOR ANCHORING LEADS OF ELECTRICAL STIMULATION SYSTEMS - A lead anchor assembly includes a burr hole cover that defines a first lead aperture in a side exterior surface, a second lead aperture in a bottom exterior surface, and a fastener aperture. An anchoring unit is disposed in the burr hole cover and includes a fastener for anchoring a lead to the burr hole cover. A lead pathway is defined through the burr hole cover and the anchoring unit. The lead pathway extends from the first lead aperture to the second lead aperture and is configured to receive a lead. A fastener pathway is defined through both the burr hole cover and the anchoring unit and intersects the lead pathway at an anchoring location. The fastener pathway is configured for movement of the fastener along the fastener pathway to engage and disengage the lead when the lead extends along the lead pathway across the anchoring location.04-18-2013
20130103129Self-directing Stimulation Electrode - A neurostimulation device is provided. The device has first and second physical electrode elements that cooperate to provide a plurality of virtual electrode pairs. The spacing between the physical elements, as well as the relative surface areas between the respective portions comprising the virtual pairs, is controlled to provide self-selecting and/or self-directing treatment capabilities.04-25-2013
20130123892ELECTRICAL STIMULATION LEADS HAVING RF COMPATIBILITY AND METHODS OF USE AND MANUFACTURE - An implantable lead has an inner core, a plurality of coiled conductor guides, and a plurality of conductors. The inner core defines a plurality of lumens. Each coiled conductor guide defines a plurality of helical lumens. Each coiled conductor guide is disposed in a coiled arrangement over a portion of the inner core. Each of the conductors electrically couples at least one electrode to at least one terminal. At least one of the conductors includes a plurality of units. Each unit includes a first conductor segment extending along the inner core from a beginning point to a first position, a coiled conductor segment disposed at least partially in one of the lumens of the coiled conductor guides and extending from the first position to the second position, and a second conductor segment extending along the inner core from the second position to an endpoint.05-16-2013
20130123893CONNECTOR ASSEMBLIES FOR IMPLANTABLE STIMULATORS - Exemplary systems include a stimulator configured to be implanted within a patient, the stimulator having a body defined by at least one side surface disposed in between distal and proximal end surfaces, and a connector assembly configured to be coupled to the stimulator and extend parallel to the at least one side surface of the stimulator. The connector assembly is further configured to facilitate removable coupling of a lead having one or more electrodes disposed thereon to the stimulator.05-16-2013
20130131768IMPLANTABLE COLLECTOR ELECTRODE HAVING A CONNECTION CABLE WITH DIRECTION MARKER, AND SYSTEM - The invention relates to a wire-shaped collector electrode (05-23-2013
20130131767POLYISOBUTYLENE URETHANE, UREA AND URETHANE/UREA COPOLYMERS AND MEDICAL LEADS CONTAINING THE SAME - The present invention provides medical devices that contain polyisobutylene urethane copolymers, polyisobutylene urea copolymers and polyisobutylene urethane/urea copolymers. More particularly, the present invention provides medical leads that contain such copolymer.05-23-2013
20130131766APPARATUS AND METHODS FOR ANCHORING ELECTRODE LEADS FOR USE WITH IMPLANTABLE NEUROMUSCULAR ELECTRICAL STIMULATOR - Apparatus and methods for tethering an electrode lead to an anatomical structure within a patient using a coupling member are provided. An anchor configured to be secured to the anatomical structure and an electrode lead suitable for neuromuscular stimulation of spinal muscles and/or nerves innervating one or more muscles that contribute to spine stability may be used. The electrode lead is configured to be coupled to the anchor via the coupling member by securing a first end of the coupling member to the electrode lead and securing a second end of the coupling member to an eyelet of the anchor to place the electrode lead at a desired anatomical site within the patient.05-23-2013
20130144368Method for Inspection of Materials for Defects - The present invention is a non-destructive method of inspecting a bond, particularly a braze bond, in a hermetic package. The invention involves a unique hermetic package design adapted for ultrasonic inspection and a method of inspecting the package. This package and non-destructive inspection process are particularly useful in implantable neural stimulators such as visual prostheses.06-06-2013
20110230944IMPLANTABLE ANTENNA - A method of forming a non-linear path of at least a portion of at least one electrically conducting wire extending between a first location and a second location. The method includes the steps of forming a wire path template defining a non-linear path, winding said wire through said template such that said wire adopts said non-linear path, connecting the wire to a feedthrough member, wherein the feedthrough member is configured to provide an electrical connection through a wall of an implantable component implantable in a recipient along with the wire, and removing the wire from the template.09-22-2011
20130150937IMPLANTABLE DEVICE HEADER AND METHOD - Systems and methods for implantable medical devices and headers are described. In an example, an implantable medical device includes a device container including an electronic module within the device container. A header core includes a bore hole portion and at least two electronic connection features disposed within the bore hole portion. The bore hole portion includes at least one cavity configured to allow placement of at least one of the electronic connection features within the bore hole portion. The at least two electronic connection features are electrically coupled to the electronic module within the device container. The header core is configured to allow location of the at least two electronic connection features in a selected configuration within the bore hole portion. A header shell is disposed around the header core and attached to the device container.06-13-2013
20130150938IMPLANTABLE SYSTEM WITH IMPROVED RF TOLERANCE - One embodiment is an implantable lead including a lead body having a proximal end and a distal end; multiple electrodes disposed along the distal end of the lead body; multiple terminal contacts disposed along the proximal end of the lead body; multiple stimulation conductors extending along the lead body and electrically coupling the electrodes to the terminal contacts; at least one diversionary terminal contact disposed along the proximal end of the lead body; and at least one diversionary conductor extending at least partially along the length of the lead body and coupled to the at least one diversionary terminal contact and not coupled to any of the electrodes. The at least one diversionary conductor is configured and arranged to capacitively couple to the stimulation conductors.06-13-2013
20130150931DISTRIBUTED NEURAL STIMULATION ARRAY SYSTEM - A device comprises a device carrier having a substantially cylindrical shape and including an array of neural probes. The array of neural probes extend substantially longitudinally from a distal end of the device carrier and include a plurality of central neural probes, wherein a central probe includes at least one stimulating electrode site, and a plurality of peripheral neural probes arranged at a periphery of the plurality of central neural probes, wherein a peripheral neural probe is electrically conducting.06-13-2013
20130150932IMPLANTABLE ELECTRODE LEAD - An implantable electrode lead comprising an electric supply lead. The electric supply lead is designed to assume, after implantation of the electrode lead in a deformable supply lead section, a shape that is changed such that it induces higher inductance in the deformable supply lead section after deformation than before deformation, wherein the inductance is at least 0.1 μH. The implantable electrode lead can also comprise an outer sleeve within which the supply lead is disposed. The electric supply lead is designed to assume, after implantation of the electrode lead in a deformable supply lead section, a shape that has changed compared to the original shape thereof. The supply lead is also designed and disposed inside the sleeve such that the supply lead, in the deformable supply lead section thereof, is deformable relative to the outer sleeve and inside the outer sleeve.06-13-2013
20130150933IMPLANTABLE LEADS AND METHODS OF MANUFACTURING THE SAME - A stimulation lead includes an elongate body having a proximal portion and a distal portion and has a multilumen tube extending along the elongate body and defining a central lumen and a plurality of peripheral lumens disposed circumferentially around the central lumen; a plurality of conductors, at least one of the conductors extending along the central lumen and a remainder of the conductors extending along the plurality of peripheral lumens with at least one of the conductors in each peripheral lumen; a plurality of terminals disposed along the proximal portion of the elongate body and electrically coupled to proximal ends of the conductors; and a plurality of electrodes disposed along the distal portion of the elongate body and electrically coupled to distal ends of the conductors. Each of the conductors is coupled to at least one terminal and at least one electrode.06-13-2013
20130150934ELECTRODE CLAMP - A clamp for clamping a brain electrode extending through a burr hole formed in a skull of a patient. The clamp includes a first retainer element having a flange extending around an outer end for engaging an outer table of the skull and a jaw extending across the inner end. The clamp includes a second retainer element shaped complementarily to the first retainer element. The second retainer element has a flange extending around an outer end for engaging the outer table of the skull and a jaw extending across the inner end for cooperating with the jaw of the first retainer to clamp the electrode. The clamp has a cap for maintaining the jaws of the first and second retainer elements in cooperation to clamp the electrode adjacent an inner table of the skull. The cap includes an opening for receiving the electrode to hold the electrode against movement.06-13-2013
20130150935ELECTRIC PULSE GENERATORS - This disclosure relates to an in vivo treatment of a skin lesion of a mammal comprising application of electrical energy to the skin lesion in a form of electrical pulses. At least one electrical pulse is applied. The pulse duration may be at least 1 nanosecond at the full-width-half-maximum. This treatment may prevent at least growth of the lesion.06-13-2013
20130150936NERVE STIMULATING DEVICE AND NERVE STIMULATING SYSTEM - Provided is a nerve stimulating device with which unwanted bacteria, etc. are prevented from entering a body, which serves to reduce the risk of infection. The nerve stimulating device includes a stent that is indwelled inside the body, a receiving coil that is provided in the stent and that receives energy from outside the body, and stimulating electrodes that are provided in the stent and that convert the energy received by the receiving coil into electric power at the timing at which the receiving coil receives the energy and passively output the electric power as nerve stimulating pulses.06-13-2013
20100292768HIGH IMPEDANCE ACTIVE FIXATION ELECTRODE OF AN ELECTRICAL MEDICAL LEAD - Electrical medical leads having active fixation electrodes, particularly helix electrodes intended to be screwed into body tissue, e.g., the heart, are disclosed having selectively applied insulation to optimize exposed electrode surface area and dispose the exposed electrode surface area toward tissue that is less traumatized by injury caused by screwing in the fixation helix. In a preferred fabrication method, an outer helical surface is masked by contact with a masking tube while a dielectric coating is applied to the inner helical surface of the coil turns of the helix, and the masking tube is removed when the dielectric coating has set. In one variation, at least one aperture is formed through the masking tube sidewall exposing an area of the outer helical surface thereby interrupting the uninsulated outer helical electrode.11-18-2010
20120259397FEED THROUGH INTERCONNECT ASSEMBLY FOR AN IMPLANTABLE STIMULATION SYSTEM AND METHODS OF MAKING AND USING - A stimulation system includes an implantable pulse generator having a sealed chamber and an electronic subassembly disposed in the sealed chamber. Feed through pins are coupled to the electronic subassembly and extend out of the sealed chamber. Feed through interconnects are coupled to the electronic subassembly via the feed through pins. At least one tab is disposed on at least one feed through interconnect. The tab(s) are configured and arranged to flex away from the feed through interconnect and against a side of the feed through pin.10-11-2012
20120259396SYSTEMS AND METHODS FOR ENHANCING PADDLE LEAD PLACEMENT - A paddle lead assembly for providing electrical stimulation of patient tissue includes a paddle body; a plurality of electrodes disposed on the paddle body; a plurality of lead bodies coupled to the paddle body; an array of terminals disposed on each of the plurality of lead bodies; and a plurality of conductive wires. Each conductive wire couples one of the electrodes to at least one terminal of at least one of the terminal arrays. The paddle lead assembly further includes an implantation aid configured and arranged to fit over a portion of at least one of the lead bodies to provide additional stiffness proximal to the paddle body for aiding in implantation of the paddle body into a patient.10-11-2012
20100318164MRI COMPATIBLE IMPLANTABLE LEAD WITH A DISTRIBUTED BAND STOP FILTER - An implantable lead comprises a lead connector and an electrode configured to perform at least one of a sensing operation and delivery of electrical energy. The implantable lead also includes a lead body having a proximal end portion and a distal end portion with the connector located at the proximal end and the electrode located at the distal end. The lead body of the implantable lead has a length that includes a lumen that extends longitudinally between the distal and proximal end portions. The implantable lead further includes a coil conductor that has spiral sections wound within the lumen and extend from the lead connector along the lumen. The coil conductor couples the lead connector to the electrode. The coil conductor has an insulation material provided on at least a segment of the coil conductor. The insulation material has a dielectric constant set such that the coil conductor forms a distributed band stop filter when exposed to a known RF magnetic field. The coil conductor comprises a filar wound into spiral sections to fit within and extend along the lumen in the lead. The filar of the coil conductor has an insulation coating provided thereon with the insulation coating forming a dielectric layer between adjacent spiral sections of the filar.12-16-2010
20100318163METHODS AND APPARATUS FOR LEADS FOR IMPLANTABLE DEVICES - A charge pump is provided in the same integrated circuit chip as a control means which permits selectively connecting any of one or more electrodes with conductors along a lead. The charge pump derives about two volts from a one-volt supply, and becomes stable within a few tens of microseconds. The charge pump may be composed of three doublers—the first generating timing signals for the second and third doublers, with the second and third doublers working out of phase with each other.12-16-2010
20130184796Elevated Hermetic Feedthrough Insulator Adapted for Side Attachment of Electrical Conductors on the Body Fluid Side of an Active Implantable Medical Device - An elevated feedthrough is attachable to a top or a side of an active implantable medical device. The feedthrough includes a conductive ferrule and a dielectric substrate. The dielectric substrate is defined as comprising a body fluid side and a device side disposed within the conductive ferrule. The dielectric substrate includes a body fluid side elevated portion generally raised above the conductive ferrule. At least one via hole is disposed through the dielectric substrate from the body fluid side to the device side. A conductive fill is disposed within the at least one via hole forming a hermetic seal and electrically conductive between the body fluid side and the device side. A leadwire connection feature is on the body fluid side electrically coupled to the conductive fill and disposed adjacent to the elevated portion of the dielectric substrate.07-18-2013
20120283807Energy Harvester Device For Autonomous Intracorporeal Capsule - An energy harvester device for an autonomous intracorporeal leadless capsule having an outside surface (11-08-2012
20120283806HYPERBOLOID ELECTRICAL CONNECTOR ASSEMBLY - An electrical connector assembly for coupling a first implantable device to a second implantable device, said assembly comprising a male element having one or more male contacts electrically coupled with the first implantable device and a female element comprised of a socket having one or more correspondent female contact electrically coupled with said second implantable device and adapted for receiving said one or more male contact. One or more male contacts are sealed to the male element through a glass or ceramic sealing material. A female contact of said socket comprises a contact structure comprised of a plurality of conductive elongated wires which extend along the internal surface of said the female contact in a hyperboloid arrangement, thereby providing an electrical coupling between the female contact and the corresponding male contact in a plurality of points.11-08-2012
20130184793ELECTRICAL STIMULATION SYSTEM AND ASSOCIATED APPARATUS FOR SECURING AN ELECTRICAL STIMULATION LEAD IN POSITION IN A PERSON'S BRAIN - In one aspect, an apparatus is provided for securing an electrical stimulation lead in position in a person's brain. The apparatus includes a flexible disc comprising a substantially radial slot adapted to secure the lead in position within the brain after implantation. The slot is adapted to elastically expand as the lead is inserted into the slot and is also adapted to elastically contract on the lead to secure the lead in position within the brain after implantation. The apparatus further includes a ring adapted to seat within a burr hole formed in the person's skull. The ring comprises a channel adapted to receive and secure the flexible disc.07-18-2013
20130184794Architectures for an Implantable Stimulator Device Having a Plurality of Electrode Driver Integrated Circuits with Shorted Electrode Outputs - Disclosed is a new architecture for an IPG having a master and slave electrode driver integrated circuits. The electrode outputs on the integrated circuits are wired together. Each integrated circuit can be programmed to provide pulses with different frequencies. Active timing channels in each of the master and slave integrated circuits are programmed to provide the desired pulses, while shadow timing channels in the master and slave are programmed with the timing data from the active timing channels in the other integrated circuit so that each chip knows when the other is providing a pulse, so that each chip can disable its recovery circuitry so as not to defeat those pulses. In the event of pulse overlap at a given electrode, the currents provided by each chip will add at the affected electrode. Compliance voltage generation is dictated by an algorithm to find an optimal compliance voltage even during periods when pulses are overlapping.07-18-2013
20130184795Implantable Neural Interface Device with a Connector having a Slitted Deformable Section - An improved deformable carrier or connector for an implantable neural interface device is described. The neural interface device comprises a carrier supporting at least one electrode array. The carrier comprises a tubular sidewall extending from a proximal carrier portion to a distal carrier portion. At least one deformable segment is provided in the carrier sidewall. The deformable segment is more pliable than the remainder of the carrier sidewall to preferably move in response to forces imparted on the carrier and the electrode array by the shifting forces in body tissue. The deformable segment takes the form of a thinned sidewall segment or a slitted wall segment.07-18-2013
20130184797CO-FIRED HERMETICALLY SEALED FEEDTHROUGH WITH ALUMINA SUBSTRATEAND PLATINUM FILLED VIA FOR AN ACTIVE IMPLANTABLE MEDICAL DEVICE - A co-fired hermetically sealed feedthrough is attachable to an active implantable medical device. The feedthrough comprises an alumina dielectric substrate comprising at least 96 or 99% alumina. A via hole is disposed through the alumina dielectric substrate from a body fluid side to a device side. A substantially closed pore, fritless and substantially pure platinum fill is disposed within the via hole forming a platinum filled via electrically conductive between the body fluid side and the device side. A hermetic seal is between the platinum fill and the alumina dielectric substrate, wherein the hermetic seal comprises a tortuous and mutually conformal interface between the alumina dielectric substrate and the platinum fill.07-18-2013
20130184798APPARATUS AND METHODS FOR DETECTING POSITION AND MIGRATION OF NEUROSTIMULATION LEADS - Apparatus and methods for detecting lead migration through the use of measured artifactual data about the tissue in the vicinity of the lead.07-18-2013
20110313501Subcutaneous Defibrillator Implantation Without Fluoroscopy - A subcutaneous cardiac device includes a subcutaneous electrode and a housing coupled to the subcutaneous electrode by a lead with a lead wire. The subcutaneous electrode is adapted to be implanted in a frontal region of the patient so as to overlap a portion of the patient's heart.12-22-2011
20110313500ELECTRODE ARRAY HAVING EMBEDDED ELECTRODES AND METHODS OF MAKING THE SAME - 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.12-22-2011
20130190850RF REJECTING LEAD - A conductor assembly for an implantable medical device includes a first conductive coil and a second conductive coil co-radial with and electrically isolated from the first conductive coil. The first and second conductive coils each including a plurality of turns. Two or more adjacently wound consecutive turns of the first conductive coil alternate with two or more adjacently wound consecutive turns of the second conductive coil.07-25-2013
20130190848Implantable Devices That Generate Low Intensity Electric Fields For The Treatment of Atherosclerotic Disease And Prevention of Ischemic Vascular Events and Methods of Manufacture - An internal medical device for implantation into a human or animal where the internal medical device has an electric field source that may be an active source of electromotive force such as a battery or capacitor, or may be an electric field generating material such as an electret, piezoelectric, or the like.07-25-2013
20130190849MEDICAL DEVICE LEAD INCLUDING A UNIFILAR COIL WITH IMPROVED TORQUE TRANSMISSION CAPACITY AND REDUCED MRI HEATING - A medical device lead includes an electrode, a helically coiled conductor electrically coupled to the electrode, and a polymer sheath formed over the helically coiled conductor. The helically coiled conductor includes a plurality of turns helically wound around a longitudinal axis of the conductor, and consists of one filar.07-25-2013
20130190851DISPLACEMENT RESISTANT MICROELECTRODE, MICROELECTRODE BUNDLE AND MICROELECTRODE ARRAY - A medical microelectrode has a front end, a rear end and a density at 20° C. of from 0.80 to 1.15. The electrode comprises any of: electrically conductive tubiform lead comprising a metal and/or an electrically conductive polymer, the lead having an outer surface and a sealed lumen; electrically conductive wire lead comprising a metal and/or an electrically conductive polymer, the lead having a surface and a buoyant element of a density of less than 1.0 attached to the surface.07-25-2013
20130190852ELECTRODE FOR FINDING POINTS OF LOW IMPEDANCE AND APPLYING ELECTRICAL STIMULATION THERETO - An electrode constituted of: a fixture arranged for connection to a frame; and a probe exhibiting a closed face and a generally conically shaped protrusion extending longitudinally from the closed face towards an apex, the probe in communication with the fixture, wherein the fixture is arranged to allow the probe to travel in a generally unrestricted manner exclusively along a longitudinal axis of the probe, wherein the generally conically shaped protrusion is arranged such that when the closed face is in contact with a skin surface, the generally conically shaped protrusion penetrates an outer layer of the skin surface responsive to the weight of the probe and is in electrical contact with an inner portion of the penetrated skin surface, and wherein a portion of the closed face, surrounding the generally conically shaped protrusion, is arranged to be in electrical contact with the outer skin layer.07-25-2013
20120290057APPARATUS AND METHOD FOR DELIVERING A NEUROSTIMULATOR INTO THE PTERYGOPALATINE FOSSA - One aspect of the present disclosure includes a neurostimulator delivery apparatus. The apparatus includes a handle portion, an elongate shaft extending from the handle portion, and a distal deployment portion. The distal deployment portion is configured to releasably mate with a neurostimulator. The neurostimulator is sized and configured for implantation into a craniofacial region of a subject.11-15-2012
20120290054DRUG RETAINING SURFACE FEATURES IN AN IMPLANTABLE MEDICAL DEVICE - An implantable component of a medical device, comprising a polymeric surface. The component includes one or more macro-surface features at the polymeric surface having a configuration that, following application of a liquid drug to the surface retains a quantity of the liquid drug adjacent the surface.11-15-2012
20130197616MEDICAL ELECTRICAL LEAD - An improved medical electrical lead is disclosed herein. The lead may include a longitudinally extending body having a distal end, a proximal end, a conductive element extending between the distal and proximal ends, and an electrode coupled to the conductive element utilizing a reflow process. The conductive element and electrode may comprise materials that are incompatible.08-01-2013
20130197615SYSTEMS AND METHODS FOR PERCUTANEOUS ELECTRICAL STIMULATION - Systems and methods according to the present invention relate to a substantially extracorporeal pulse generator system for electrical stimulation of one or more target nerve or their branches using one or more preferably percutaneous leads each having one or more electrodes implanted in, on, around, or near the target nerve. Improved systems include a patch assembly configured to be adhesively mounted to a patient's skin and an electrical stimulation assembly configured to be mechanically mounted to the patch assembly. A preferred patch assembly, in addition to provide mechanical mounting of the stimulation assembly, provides a power source for the stimulation assembly, and may further serve as a return electrode. Associated system components and methods of use are also provided.08-01-2013
20120035693IMPLANTABLE MRI COMPATIBLE MEDICAL LEAD - A medical implantable lead is adapted to be implanted into a human or animal body for monitoring and/or controlling of an organ inside the body, and has in a distal end, a combined fixation means and electrode member in form of a helix, which is rotatable in relation to the lead and extendable out from the distal end by rotation of a tubular torque transferring member. The helix is electrically connected to a connector in the proximal end by at least one electrically conducting wire, which is formed as an electrically conducting coil, which is separate from the tubular torque transferring member and that includes one or more individual wires each having an electrically conducting wire core and a surrounding electrically insulating layer. The tubular torque transferring member has no electrically conducting function to or from the helix. The lead is arranged such that the electrical connection between the helix and the conducting wire is always maintained regardless of the rotational position of the helix while no electrical connection is present between the helix and the tubular torque transferring member although the helix is rotatable by the tubular torque transferring member.02-09-2012
20120296404INTRACEREBRAL ELECTRODE - An intracerebral electrode (11-22-2012
20120046723MEDICAL LEAD HAVING A BANDSTOP FILTER EMPLOYING A CAPACITOR AND AN INDUCTOR TANK CIRCUIT TO ENHANCE MRI COMPATIBILITY - A bandstop filter includes a capacitance in parallel with an inductance and is placed in series with the implantable lead of an active implantable medical device, wherein values of capacitance and inductance are selected such that the bandstop filter attenuates RF current flow at a selected center MRI RF pulsed frequency or across a range of frequencies. The Q02-23-2012
20130204334METHODS AND APPARATUS FOR ELECTRICAL TREATMENT USING BALLOON AND ELECTRODE - The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue. A device is provided with an electrode positioned within the interior of an enclosure and a fluid passage coupled to the enclosure for delivery of an electrically conductive fluid such that the electrically conductive fluid. The conductive fluid allows for the passage of electrical energy from the electrode through the fluid and the outer wall of the enclosure for treatment of tissue on or in a patient. The electrode does not directly contact the tissue of the patient, which reduces the potential for collateral tissue damage or necrosis and/or excessive electric fields in the tissue.08-08-2013
20130204335MRI COMPATIBLE CONDUCTIVE WIRES - An MRI compatible electrode circuit construct is provided. The construct includes at least three filter components constructed from a continuous or non-continuous electrode wire. One filter component may be a resonant LC filter proximate an electrode/wire interface. A second filter component may be a resonant LC filter adjacent a proximal termination of the wire construct. The filters resolve the issue of insufficient attenuation by effectively blocking the RF induced current on the wire from exiting the wire through the electrode and at the terminal or proximal end. The third filter component may include one or more non-resonant filter(s) positioned along the length of the electrode wire that resolve(s) the issue of excessive heating of the resonant LC filters by significantly attenuating the current induced on the wire before it reaches the resonant LC filters.08-08-2013
20100070008KNITTED ELECTRODE ASSEMBLY FOR AN ACTIVE IMPLANTABLE MEDICAL DEVICE - An active implantable medical device (AIMD). The AIMD comprises an electronics module; and a knitted electrode assembly comprising: at least one biocompatible, electrically non-conductive filament arranged in substantially parallel rows each stitched to an adjacent row, and at least one biocompatible, electrically conductive filament intertwined with the at least one non-conductive filament, and configured to be electrically connected to the electronics module.03-18-2010
20120083865MEDICAL DEVICE LEAD INCLUDING A ROTATABLE COMPOSITE CONDUCTOR - A medical electrical lead includes a proximal connector including a rotatable portion and first and second co-radial conductors coupled to the rotatable portion and extending distally from the rotatable portion. An actuation member is coupled between an electrode and the first and second conductors such that rotating the rotatable portion of the proximal connector transmits torque through the co-radial first and second conductors to the actuation member and results in both rotational and linear motion of the electrode.04-05-2012
20130211485Probe Device and a Method of Fabricating the Same - According to embodiments of the present invention, a probe device is provided. The probe device includes a flexible probe that is implantable into a biological tissue, a rigid carrier, and a biodegradable material received in a recess defined between the flexible probe and the rigid carrier, the biodegradable material bonding the flexible probe and the rigid carrier to each other, wherein the biodegradable material is dissolvable in the biological tissue such that the flexible probe and the rigid carrier are separable and the rigid carrier is removable from the biological tissue, and wherein the biodegradable material is capable of drug delivery upon dissolution. According to further embodiments of the present invention, a method of fabricating a probe device is also provided.08-15-2013
20130211486Method And Apparatus For Securing An Electrode - A system for securing at least one electrode to an anatomy is provided. The system can include a first plate, which can include at least one first passage. The at least one first passage can be configured to receive a lead of the at least one electrode. The system can also include a second plate configured to move relative to the first plate. The movement of the second plate relative to the first plate can couple the second plate to the first plate such that the second plate at least partially occludes the at least one passage of the first plate to secure the lead of the at least one electrode to the anatomy.08-15-2013

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