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Electrode guide means

Subclass of:

606 - Surgery

606001000 - INSTRUMENTS

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DocumentTitleDate
20100016863LEAD DELIVERY DEVICE AND METHOD - A lead delivery apparatus and a method of delivering a medical lead to an anatomic target site. An elongated lead advancement member is coupled to a delivery shaft. The delivery shaft is inserted to the target site. The delivery shaft is temporarily attached to the target site using a fixator. A medical lead is inserted over the lead advancement member and pushed over the lead advancement member toward the target site.01-21-2010
20130079798DELIVERY SYSTEM ASSEMBLIES FOR IMPLANTABLE MEDICAL DEVICES - A delivery system assembly includes an elongate inner member that extends distally through a lumen of an elongate outer tube of the assembly; the outer tube is moveable relative to the inner member between first and second positions to deploy an implantable medical device that is held within the outer tube lumen. The inner member may include a flared distal end that abuts, and preferably conforms to, the proximal end of the device, when the device is held within the outer tube lumen. The assembly further includes a stability sheath that surrounds a limited length of the outer tube, in proximity to the handle, to provide an interface for both an operator, who handles the assembly, and for an introducer sheath that provides passage for the assembly into the venous system, so that movement of the outer tube is not hindered by either during device deployment.03-28-2013
20120209286SURGICAL GUIDE AND METHOD FOR GUIDING A THERAPY DELIVERY DEVICE INTO THE PTERYGOPALATINE FOSSA - A surgical guide to facilitate delivery of a therapy delivery device into the pterygopalatine fossa of a subject includes a curvilinear body having a distal end portion, a proximal end portion, and an intermediate portion extending between the distal and proximal end portions. The proximal end portion is defined by oppositely disposed first and second surfaces. The proximal end portion and the intermediate portion define a longitudinal plane that extends between the proximal and distal end portions. The distal end portion has an arcuate configuration relative to the longitudinal plane and is defined by oppositely disposed third and fourth surfaces.08-16-2012
20100042109STYLET FOR GUIDING LEADS OF IMPLANTABLE ELECTRIC STIMULATION SYSTEMS AND METHODS OF MAKING AND USING - A lead assembly includes a lead and a stylet. The lead has a distal end, a proximal end, and an outer lead covering. The lead includes a plurality of electrodes disposed at the distal end, a plurality of terminals disposed at the proximal end, and at least one lumen defined in the lead that extends from the distal end to the proximal end. The lead also includes a plurality of conductive wires electrically coupling the plurality of electrodes to the plurality of terminals. The stylet is configured and arranged for inserting into one of the at least one lumens of the lead. The stylet includes an elongated body and a protective feature that is coupled to the elongated body. The protective feature is configured and arranged for absorbing or redirecting an amount of force applied to the stylet above a threshold amount of force.02-18-2010
20100042110METHOD AND SYSTEM FOR PLACEMENT OF ELECTRICAL LEAD INSIDE HEART - A method of placing an electrical lead of an implantable cardiac device inside a heart of a patient. The method includes securing a tool to an atrial appendage of the heart to hold onto the atrial appendage, piercing the atrial appendage, and creating an aperture in the atrial appendage while holding the atrial appendage with the tool. The method also includes moving a distal end of the electrical lead into the heart through the aperture in the atrial appendage and into a ventricle of the heart. Furthermore, the method includes coupling the distal end of the electrical lead to cardiac tissue in the ventricle and delivering an electrical signal to the cardiac tissue in the ventricle of the heart to maintain a predetermined heartbeat of the heart.02-18-2010
20090157091Apparatus for Implanting Neural Stimulation Leads - Minimally invasive surgical instruments and procedures introducing neural stimulation leads comprise an inner member and an outer member and provide for a convenient coupling of an external stimulator lead at the inner member handle for application of test stimuli to nerves and tissue proximate the distal end of the inner member. A conductive inner member shaft proximal end extends into or proximally through the non-conductive handle and is configured to provide an inner member connector within or extending proximally to the handle for connection with a test stimulator. The inner member shaft is electrically conductive to conduct such test stimuli to nerves and tissue proximate the exposed shaft distal end. The outer member is preferably non-conductive and may thereby electrically insulate the shaft body proximal to the exposed shaft distal end. Ergonomically shaped inner member handles, caps, and inner member-outer member interlocking mechanisms are disclosed.06-18-2009
20090157090Cardiac Lead Placement Using Multiple Spatially Distributed Sensors - Systems and methods facilitate placement of a lead in or on a patient's heart. At least one reference sensor is positioned at a right heart location of a patient's heart and a cardiac lead apparatus comprising at least one lead apparatus sensor is advanced to a plurality of left heart locations. Using the reference sensor and the lead apparatus sensor, a distance parameter indicative of a distance between the reference and lead apparatus sensors is measured for each of the plurality of left heart locations. Strain or stress estimates are determined for the plurality of left heart locations derived from the distance parameter measurements. Using the strain or stress estimates, a physician perceivable output is produced indicating suitability of the left heart locations as pacing sites.06-18-2009
20100137878IMPLANT TOOL FOR ACTIVE FIXATION LEAD - An implant tool for use with an endocardial or other implantable lead having an extendable/retractable active fixation tip includes a housing, a shaft rotatably supported by the housing, and a shaft rotation mechanism for rotating the shaft through a predetermined angular travel. The shaft includes a lead attachment portion for selectively coupling a lead to the shaft such that the lead is rotatable with the shaft. The implant tool may include a control tab slidably supported by the housing, wherein longitudinal movement of the control tab actuates the shaft rotation mechanism. The shaft rotation mechanism may include a gear train, an electric motor, a double acting spring mechanism, or a retractable tape wound around the shaft. The gear train includes an input member coupled to the control tab and an output gear coupled to the shaft. The input member meshes with an input gear supported by the housing.06-03-2010
20110015646SHAPED ELECTRODE AND DISSECTING TOOL - Disclosed is a shaped electrode and dissecting tool configured to aid in controlling the path of an electrode as it is moved into its intended position within the epidural space of a patient. The shaped electrode and dissecting tool is configured with a contoured leading edge having at least one concavity that aids in moving the electrode and dissecting tool through the intended tissues within the patient's body. A variety of concavity contours may be provided and used for particular surgical applications.01-20-2011
20130066331TAPERED, CURVED STYLETS FOR INSERTING SPINAL CORD MODULATION LEADS AND ASSOCIATED SYSTEMS AND METHODS - The present technology is directed generally to tapered, curved stylets for inserting spinal cord modulation leads, and associated systems and methods. In some embodiments, the stylet includes a handle and a shaft the shaft having a proximal portion adjacent to the handle, a distal portion adjacent to the proximal portion, and a rounded tip. The proximal portion can be elongated along a longitudinal axis and can have a generally constant diameter. The distal portion can have a tapered section with a diameter that decreases in a distal direction, and a pre-set curve with respect to the longitudinal axis. The rounded tip can have a diameter greater than or equal to the smallest diameter of the distal portion.03-14-2013
20110022059Device for Immobilizing a Primary Instrument and Method Therefor - Devices and methods provide accurate targeting, placement, and/or stabilization of an electrode or other instrument(s) into the brain or other body organ, such as to treat severe tremor or other neurological disorders. Targeting is performed using any form of image-guidance, including real-time MRI, CT, or frameless surgical navigation systems.01-27-2011
20120232565DELIVERY OF CARDIAC STIMULATION DEVICES - Some embodiments of an electrical stimulation system employ wireless electrode assemblies to provide pacing therapy, defibrillation therapy, or other stimulation therapy. In certain embodiments, the wireless electrode assemblies may include a guide wire channel so that each electrode assembly can be advanced over a guide wire instrument through the endocardium. For example, a distal tip portion of a guide wire instrument can penetrate through the endocardium and into the myocardial wall of a heart chamber, and the electrode assembly may then be advanced over the guide wire and into the heart chamber wall. In such circumstances, the guide wire instrument (and other portions of the delivery system) can be retracted from the heart chamber wall, thereby leaving the electrode assembly embedded in the heart tissue.09-13-2012
20120191106Apparatus and Method for Subcutaneous Electrode Insertion - Devices and methods for electrode implantation. A first embodiment includes an electrode insertion tool adapted to tunnel through tissue and attach, at its distal end, to a lead, such that the lead may be pulled into the tunneled space as the electrode insertion tool is removed. Additional embodiments include methods for inserting electrode/lead assemblies, including a method wherein an insertion tool is first used to tunnel through tissue, then to pull an electrode/lead into the tunneled space. In a further embodiment the insertion tool is next used, with a splittable sheath disposed thereon, to create an additional path into tissue, after which the insertion tool is removed, leaving the sheath in place; a lead is inserted to the sheath, and, finally, the splittable sheath is removed over the lead.07-26-2012
20120109149SYSTEM AND METHOD FOR IMPLANTATION OF AN IMPLANTABLE MEDICAL DEVICE - System and method for implanting an implantable medical device. A catheter has a lumen and a distal portion configured for insertion in proximity of tissue of a patient. An implantable medical device has a fixation member operatively coupled to the housing having an unengaged state when in the lumen of the catheter and an engaged state configured to engage tissue of a patient when outside of the lumen of the catheter, the medical device being magnetically attractable. A magnetic element is configured to magnetically engage the implantable medical device and to pass through the lumen of the catheter.05-03-2012
20120109148SYSTEM AND METHOD FOR RETRIEVAL OF AN IMPLANTABLE MEDICAL DEVICE - System and method for extracting an implantable medical device. An implantable medical device has a fixation member operatively coupled to the housing having an engaged state configured to engage tissue of a patient, the medical device being magnetically attractable. A catheter has a lumen and a distal portion configured for insertion in proximity of the implantable medical device. A magnetic element is configured to pass through the lumen of the catheter and to magnetically engage the implantable medical device when inserted toward the distal portion of the catheter.05-03-2012
20110172679METHOD OF IMPLANTING MICRODEVICE WITH EXTENDED LEAD AND REMOTE ELECTRODE - An implantable microdevice includes at least one electrode detachably connected to electronic circuitry housed in an hermetically-sealed micro housing. The micro housing has a length no more than about 10 mm. In one embodiment, the electrode is located at a distal end of an electrode lead, and a proximal end of the electrode lead is removably inserted into a connector that forms part of the micro housing.07-14-2011
20100036392MODULAR CATHETER ASSEMBLY - A modular catheter assembly (02-11-2010
20100030230MEDICAL DEVICE SYSTEM AND APPARATUS FOR GUIDING THE PLACEMENT OF A SUBCUTANEOUS DEVICE - A medical device system for guiding placement of a subcutaneous medical device that includes a strap extending along a length from a proximal end to a distal end, a first flange and a second flange extending along a portion of the length of the strap, a base portion extending along a portion of the length of the strap between the first flange and the second flange, an orientation member extending along the strap to limit a predetermined radius of curvature of the strap, and an indentation extending from the proximal end to the distal end of the strap, the indentation formed by the first flange, the second flange, and the base portion, wherein the first flange and the second flange include curved bottom portions that make contact with and compress a tissue layer to position the tissue layer within the indentation during the placement of the subcutaneous device.02-04-2010
20100030229MEDICAL DEVICE SYSTEM AND APPARATUS FOR GUIDING THE PLACEMENT OF A SUBCUTANEOUS DEVICE - A medical device system for advancing a subcutaneous device to a desired implant site that includes a strap extending along a length from a proximal end to a distal end, a first flange and a second flange extending along a portion of the length of the strap, a base portion extending along a portion of the length of the strap between the first flange and the second flange, and an indentation extending from the proximal end to the distal end of the strap, the indentation formed by the first flange, the second flange, and the base portion, wherein the first flange and the second flange include curved bottom portions that make contact with and compress a tissue layer to position the tissue layer within the indentation during the placement of the subcutaneous device.02-04-2010
20100114114CORONARY VEIN NAVIGATOR - A system and method for navigating coronary vasculature involves use of a guide catheter system which includes a guide catheter, a navigator catheter longitudinally displaceable within the guide catheter, and a deflection arrangement provided at a distal end of the navigator catheter. The guide catheter is advanced to at least a patient's coronary sinus ostium, and the navigator catheter is extended from the guide catheter to a location proximate or within an angled vein distal to the coronary sinus ostium. Using the deflection arrangement, a guide wire passing through the navigation catheter is directed into the angled vein. A lead having an open lumen is advanced over the guide wire to direct the lead to an implant site within the angled vein.05-06-2010
20090149866IMPLANTABLE ELECTRODES AND INSERTION METHODS AND TOOLS - An insertion kit for implanting an electrode in a patient can include a handle; an insertion member coupled to the handle at a proximal end of the insertion member and configured and arranged to be inserted into a patient; an alignment member coupled to the handle and disposed over the distal end of the insertion member; and an electrode configured and arranged to be inserted into the patient using the insertion member. In some instances, the insertion kit may also include one or more of a marker that cooperates with the alignment member to mark a position of the electrode on the skin of the patient; a pointer that cooperates with the alignment member to find the marked position on the skin of the patient; and a second electrode and a second insertion member configured and arranged for detachably coupling to the handle in place of the insertion member.06-11-2009
20100318098Systems and Methods for Implanting Medical Devices - Methods and instruments forming a tissue pathway between the first and second skin incisions to draw a permanent or temporary elongated medical device or implant, e.g., a medical electrical lead, through the tissue pathway are disclosed. A tunneling instrument comprises an elongated sleeve and a needle that are mounted together to be used as the tunneling instrument to form the tissue pathway and separated so that the sleeve may be employed to engage the lead connector to pull the medical electrical lead through the tissue pathway.12-16-2010
20100121346Compliant Guiding Catheter Sheath System - A guiding catheter system employs a compliant shaft with an inflatable balloon affixed to a distal portion of the shaft. The inflatable balloon includes channels that allow some amount of blood to flow past the balloon when inflated in a blood vessel. One or more inflation lumens is in fluid contact with the balloon and allows inflating the balloon from a proximal end of the catheter. A series of perfusion orifices may be included on the shaft proximal to the balloon.05-13-2010
20110202067INTRODUCER FOR LEAD DELIVERY - Devices and methods for implanting leads along a spinal cord include an introducer having a main body defining a lumen and one or more collapsible and expandable side sheaths attached to the main body. The side sheaths may be collapsed as the introducer is positioned in a desired location of a patient to maintain a low profile. Once the introducer is placed, the side sheaths may be expanded to receive a lead. A lead may also be inserted through a lumen of the main body. Once the leads are inserted, the introducer may be withdrawn over the leads, leaving the leads implanted in the desired region in a desired orientation.08-18-2011
20100125281CARDIAC PACING LEAD AND DELIVERY SHEATH - The present invention provides compositions and methods related to epicardial pacing systems. In particular, the present invention provides a novel delivery sheath and cardiac pacing lead to be deployed in the pericardial space via a percutaneous approach.05-20-2010
20090299380IMPLANTATION OF IMPLANTABLE MEDICAL DEVICE - In general, the invention is directed to strategies pertaining to implantation of an implantable medical device between a scalp and a skull of the patient. The invention pertains to collection of data such as data pertaining to the skull of the patient, the scalp of the patient, the vascular structure or neurological structures in the head of the patient, and the like. The data may be in the form of images, such as images generated by X-ray, magnetic resonance imaging, CT-scan and fluoroscopy. A surgeon can use the collected data to determine, for example, whether the patient is a candidate for a cranial implantation, whether the patient's skull and scalp can support the implantation, what configuration of device should be implanted, where the device should be implanted, and how the surgical incisions should be made.12-03-2009
20080275465Design of Handle Set for Ablation Catheter with Indicators of Catheter and Tissue Parameters - An electrode coupling output system provides indication to the physician, via electrode guidance instrumentation, concerning the electrical coupling of an electrode, such as an ablative or mapping electrode, with a patient. The output can be provided to the physician via an output device incorporated into the handle set of the electrode catheter. For example, a visual, audio or mechanical output can be provided via the handle set. Additionally or alternatively, the output can be provided to the physician via a navigation system. The indication may be provided by changing the color or other display characteristics of the electrode on the navigation system display or by way of providing a waveform indicating the electrode coupling. In this manner, electrode coupling information is provided to a physician in a manner that minimizes physician distraction.11-06-2008
20110208207Endocardial lead removing apparatus - The invention provides an apparatus having a tubular member for receiving an endocardial lead implanted within a patient's body. Disposed generally at a distal end of the tubular member is at least one blade or cutting surface. An adjustment mechanism moves the blade between retracted and extended positions to engage the cutting surface with the endocardial lead to cut the lead. Once severed, the cut portion of the lead remains within an inner channel of the tubular member and the apparatus and cut portion of the lead are removed from within the patient. Various embodiments include the blade pivotally connected to the distal end of the tubular member and activated by a wire adjustment mechanism. Others include a metallic wire for slicing through the lead. Still others include a pneumatically actuated adjustment mechanism that inflates to move the blade and engage the cutting surface with the lead.08-25-2011
20080269776System and Method for Guidance and Implantation of Implantable Devices - Systems and methods are provided for fixation of a fractured bone with an intramedullary bone fixation device. During an implantation procedure, the fixation device may be guided by a removable guidewire which is not coupled to the fixation device. The guidewire and device may be inserted into an intramedullary canal along a pathway which is not parallel to the intramedullary canal. The fixation device may be composite, formed of a support structure and a matrix material. The matrix material may be thermo-chemically activated, transformable from a deformable first thermo-chemical state to a hardened second thermo-chemical state. The fixation device may be radially expandable to deform to the shape of the intramedullary canal, to provide support to the fractured bone.10-30-2008
20080228194METHOD AND APPARATUS FOR ENDOSCOPIC ACCESS TO THE VAGUS NERVE - An apparatus for performing a minimally-invasive surgical procedure in the vagus nerve region includes a cannula, an endoscopic dissection tool and a cradle assembly slideably disposed in a cannula lumen. The cradle assembly includes a C-ring, an electrode cuff disposed over an exterior surface of the C-ring, and a deployment device. The electrode cuff is adapted to wrap around the target nerve region or nerve branch to be stimulated when deployed from the C-ring using the deployment device. A method of performing a minimally invasive surgical procedure is also described.09-18-2008
20100137879Apparatus and Method for Subcutaneous Electrode Insertion - Devices and methods for electrode implantation. A first embodiment includes an electrode insertion tool adapted to tunnel through tissue and attach, at its distal end, to a lead, such that the lead may be pulled into the tunneled space as the electrode insertion tool is removed. Additional embodiments include methods for inserting electrode/lead assemblies, including a method wherein an insertion tool is first used to tunnel through tissue, then to pull an electrode/lead into the tunneled space. In a further embodiment the insertion tool is next used, with a splittable sheath disposed thereon, to create an additional path into tissue, after which the insertion tool is removed, leaving the sheath in place; a lead is inserted to the sheath, and, finally, the splittable sheath is removed over the lead.06-03-2010
20120197265Instrument for Inserting Implantable Electrode Carrier - A surgical instrument for inserting an implantable electrode carrier includes a housing having a proximal end and a distal end. The proximal end is configured to hold the implantable electrode carrier. The instrument also includes a vibration generator positioned within the housing. The vibration generator is configured to generate vibrations in at least a portion of the electrode carrier.08-02-2012
20100145357BURR HOLE PLUG HAVING DUAL SLIDABLE CLAMPING MECHANISMS - 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 burr hole plug further comprises a retainer configured for being mounted within the aperture of the plug base. The retainer further includes first and second slidable clamping mechanisms configured for securing the medical devices therebetween within the aperture of the plug base. A method comprises introducing the medical device through the burr hole, mounting a plug base around the burr hole, such that the medical device extends through the plug base aperture, mounting the retainer within the aperture of the plug base, and sliding the first and second clamping mechanisms secure the medical device therebetween.06-10-2010
20110224681SYSTEM AND METHOD FOR MAKING AND USING A SPLITABLE LEAD INTRODUCER FOR AN IMPLANTABLE ELECTRICAL STIMULATION SYSTEM - A lead introducer includes a split-release insertion needle configured and arranged for insertion into an epidural space of a patient. The split-release insertion needle has a proximal end, a distal end, and a longitudinal axis. The split-release insertion needle includes a plurality of body elements that laterally mate along the longitudinal axis of the split-release insertion needle. When the plurality of body elements are mated, the plurality of body elements define a lumen along the longitudinal axis of the split-release insertion needle. The lumen is configured and arranged to receive a distal end of a neurostimulation lead. A removable retaining member is disposed over at least a portion of each of the plurality of body elements. The plurality of body elements are configured and arranged to at least partially separate from one another when the retaining member is removed from the plurality of body elements.09-15-2011
20090187196GUIDE TUBE FOR AN IMPLANTABLE DEVICE SYSTEM - The implantable device system of the preferred embodiments includes a guide tube, a first electrical subsystem, and a second electrical subsystem. The first electrical subsystem is connected to the second electrical subsystem. The guide tube functions to facilitate the insertion of at least one first electrical subsystem and is adapted to allow the first electrical subsystem(s) to move freely with the tissue, allowing the placement of the first electrical subsystem without disconnecting the second electrical subsystem. The implantable device system may be implanted into the brain, spinal cord, peripheral nerve, muscle, or any other suitable anatomical location. The guide tube of the system, however, may be alternatively used in any suitable environment and for any suitable reason.07-23-2009
20090326551LEAD DELIVERY DEVICE AND METHOD - A medical apparatus includes a guidewire and a fixator catheter. The fixator catheter comprises a tubular body with a distal portion and a proximal portion, and further includes a distal opening, a fixator secured to the distal portion, and a body opening arranged between the fixator and the proximal portion. The guidewire passes through the body opening and the distal opening of the fixator catheter. The fixator is movable between a compact configuration and an expanded configuration and, in the expanded condition, is capable of anchoring the guidewire and fixator catheter in a lumen of a blood vessel.12-31-2009
20090198251LEAD DELIVERY, FIXATION AND EXTRACTION DEVICES AND METHODS FOR USE WITH INTRAVASCULAR IMPLANTABLE MEDICAL DEVICES - A lead delivery and fixation device for use with an intravascular implantable device includes a sidecar having a selectively retractable fixation element. A lead is releasably coupled to the sidecar, with an electrode portion exposed for delivering a stimulation therapy. A manipulable catheter is coupled to the fixation element and configured to advance and withdraw a helix portion of the fixation element. The catheter and fixation element are offset from and generally parallel to the lead. The lead is separable from the sidecar in the event that extraction is required.08-06-2009
20090198252GUIDE CATHETERS FOR ACCESSING CARDIAC SITES - A method and apparatus for introducing a cardiac lead to an implantation site that includes a catheter body having an outer wall and a distal leader and having a proximal portion extending from the first proximal end to a second distal end. An inner member is positioned within an outer lumen of the catheter body and is spaced from the outer wall to form a first inner lumen for receiving a guide tool inserted therein and a second lumen for receiving the cardiac lead while the guide tool is positioned within the first inner lumen. A distal end of the inner member forms a first opening at a distal end of the first inner lumen and a second opening at a distal end of the second inner lumen, the first opening and the second opening positioned proximal the distal leader.08-06-2009
20110144655BURR HOLE CAPS AND METHODS OF USE - In one embodiment, an apparatus comprises: a base structure adapted to be inserted within the burr hole; a lead securing member for securing the lead, the lead securing member comprising a first arm structure and a second arm structure, at least one spring loaded structure adapted to exert a force to bring the first arm structure and the second arm structure together; and a positioning tool having a distal end adapted to be inserted within the lead securing member. When the positioning tool is positioned within the lead securing member, the distal end holds the first and second arm structures a sufficient distance apart to receive a lead between the first and second arm structures; wherein the positioning tool comprises a control structure at a proximal end that, when engaged, causes the distal end of the positioning tool to be released from between the first and second arm structures.06-16-2011
20110230893SYSTEMS AND METHODS FOR MAKING AND USING ELECTRICAL STIMULATION SYSTEMS HAVING MULTI-LEAD-ELEMENT LEAD BODIES - A lead for providing electrical stimulation of patient tissue includes a distal lead element and three proximal lead elements. The distal lead element includes at least twenty electrodes and defines a stylet lumen and a plurality of conductive wire lumens having triangular transverse cross-sectional shapes. Each of the three proximal lead elements includes a plurality of terminals and defines a plurality of conductive wire lumens. Each of the conductive wire lumens has a round transverse cross-sectional shape. A junction couples the distal lead element to the proximal lead elements. Conductive wires couple each of the electrodes of the distal lead element to at least one of the terminals of at least one of the proximal lead elements. The conductive wire lumens disposed on the distal lead element are configured and arranged to receive a plurality of the conductive wires.09-22-2011
20120078267INTRATHORACIC PACEMAKER - The present invention provides a fully intrathoracic artificial pacemaker. The pacemaker is of sufficiently compact size to allow for implantation of both the electrode and the power source within the chest cavity. In exemplary embodiments, a screw-type electrode is used for connection to heart tissue, and a relatively short lead is used to connect the electrode to a battery unit, which can comprise electronics for control of the pacemaker. An assembly for implanting the pacemaker, as well as methods of implanting the pacemaker, are disclosed. In embodiments, the device is designed as a fetal pacemaker.03-29-2012
20120078266TRANSVENOUS ACTIVE FIXATION LEAD SYSTEM - A medical electrical lead system that includes a catheter extending from a proximal catheter end to a distal catheter end; a lead, insertable within the catheter, including a lead body extending from a proximal lead end to a distal lead end and an active fixation member positioned at the distal lead end; and an advancement tool for advancing the distal lead end outward from the distal catheter end. The advancement tool is adapted to be positioned around the lead body and further adapted to be removably fixedly engaged with the proximal catheter end.03-29-2012
20090222021Apparatus and Associated Method for Facilitating Implantation of Leads of a Cardiac Pacemaker - An apparatus and method are provided for preparing a vein. A first tubular member end, defining a first lumen, is inserted into a cannulated vein, over a first guide wire. A second tubular member end, defining a second lumen, has a cutting member operably engaged therewith, and is inserted into the vein so as to intersect with and extend into the first tubular member, remotely to the first tubular member end, to establish communication between the first and second lumens, and such that a second guide wire received through the second lumen extends into the first lumen. Withdrawal of the first tubular member from the vein, over the first guide wire, causes the cutting member to longitudinally divide the first tubular member, from the intersection between the tubular members to the first tubular member end, to allow the second guide wire to pass through the division.09-03-2009
20110224682METHODS OF IMPLANTING ELECTRODE LEADS FOR USE WITH IMPLANTABLE NEUROMUSCULAR ELECTRICAL STIMULATOR - Electrode leads for providing neuromuscular stimulation of the spinal muscles, and methods of implantation of electrode leads, are provided that reduce injury to target muscles, and avoid extended recuperation period, by enabling a clinician to visualize and confirm the implantation site of the electrode leads during an implantation procedure09-15-2011
20090209975Catheter Shape Forming System - A catheter assembly (08-20-2009
20090248035STEERABLE STYLET FOR AN IMPLANTABLE MEDICAL LEAD, AND METHOD FOR MANUFACTURE THEREOF - A steerable stylet for a medical implantable lead has an inner lumen, into which the steerable stylet is insertable for navigating a distal end of the medical implantable lead to the desired location for attachment to tissue. The steerable stylet comprises a wire, a tube and an actuator. By means of the steerable stylet, the distal portion of the lead may be bent in desirable degree and, when the medical implantable lead is bent, the distal portion of the medical implantable lead is pivotal by means of the actuator to which the proximal end of the wire is non-rotatably connected. The tube is connected to the actuator by means of a torque limitation device which, when exceeding a predetermined torque force, will disconnect the torque connection between the tube and the actuator. A method for manufacturing a steerable stylet for a medical implantable lead includes the step of connecting the stylet tube to the actuator by a torque limiting device as described above.10-01-2009
20090240258DETACHABLE HANDLE FOR IMPLANTABLE ELECTRICAL STIMULATION SYSTEMS AND METHODS OF MAKING AND USING - A detachable handle includes a handle body that is substantially tubular and defines a hollow center region extending at least a portion of a longitudinal length of the handle body. The handle body is configured and arranged to receive a portion of a stylet handle within the hollow center region and removably attach to the stylet handle. The handle body includes an external gripping surface extending at least a portion of an exterior surface of the handle body.09-24-2009
20120197264TOOLS AND METHODS FOR REMOVING ANCHORS FROM MEDICAL LEADS - Tools and methods for removing anchors from medical leads involve a guide portion and a blade. The lead is inserted within a lead passageway of the guide portion of the tool and the tool is moved along so that the blade contacts the anchor and cuts a slit in the anchor as the tool. Once the blade has cut the slit through the entire anchor, the anchor comes free of the lead and the tool can be removed. The tool may include a manner of opening and closing the guide portion so as to provide access to the lead when open and to contain the lead when closed. Opening the guide portion allows the lead to be inserted or removed by laterally moving the lead into or out of the lead passageway such that the tool may be installed or removed at any available point along the lead.08-02-2012
20090177209VASCULAR FIXATION DEVICE - In one embodiment, the present invention provides a cardiac lead device including a fixation mechanism slidably attached to the lead such that when the fixation mechanism is expanded in to contact with a body lumen, the lead may be moved relative to the fixation mechanism if desired. Such lead movement may be limited by complimentary structure on the lead body and the fixation mechanism that prevents the lead from moving unless sufficient force is applied to the lead.07-09-2009
20090275956TECHNIQUES 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
20100152747INSERTION SYSTEM AND LEAD FOR TREATMENT OF A TARGET TISSUE REGION - The present disclosure provides for systems and methods enabling the insertion of leads (as used e.g., in a framework of the brain treatment therapies) through a target anatomy for conforming with a target tissue region. An exemplary lead includes at least a partially curved portion for conforming with a geometry defined by the target tissue region. In an exemplary embodiment, the system relates to stimulating targets in the brain for improved post-operative steering of an applied electric field. The leads can be either pre-curved or put under transversal mechanical strain during insertion such that a certain curved curvature of the insertion trajectory is achieved. The system includes at least a first insertion tool removably engaged with respect to the lead for guiding and providing mechanical support to the lead during insertion.06-17-2010
20100152748Devices, Systems, and Methods Providing Body Lumen Access - Devices and methods are provided which include access port devices for implantation through a tissue wall of a lumen of patient's body and for containing electrical leads therein. An implantable port device includes a body with a first end having a first opening and an opposed second end having a second opening, and a channel extending from between and operably connecting the first opening and the second opening; a first retaining member extending radially from the first end of the body; and a second retaining member spaced apart from the first retaining member, the second retaining member being closer than the first retaining member to the second end of the body, and extending radially from the second end of the body. The first retaining member and the second retaining member are configured to cooperatively engage opposing sides of the tissue wall about edges of an aperture through the tissue wall to secure the body within the aperture.06-17-2010
20100217277DEVICE AND METHOD FOR THE IMPLANTATION OF ACTIVE FIXATION MEDICAL LEADS - A lead implantation tool is disclosed herein. The tool may be configured to operably couple to a lead connector end of an implantable cardiac electrotherapy lead including an active fixation helix tip and wherein the lead connector end includes a contact pin proximally extending from the lead connector end. The tool may include a feature configured to couple to the contact pin and a first mechanism configured to convert linear movement into rotational movement of the contact pin relative to the lead connector end. The tool may further include a second mechanism that causes a stylet extending through the tool and into the contact pin to at least one of distally and proximally displace within the contact pin.08-26-2010
20100228263LEAD ASSEMBLY AND METHODS INCLUDING A PUSH TUBE - A lead assembly includes an elongate body having a conductor electrically coupled with an electrode coupled to the elongate body. The lead assembly includes a push tube extending along at least a portion of the elongate body. A distal tip is coupled to the elongate body substantially adjacent to the distal end of the elongate body. The distal tip is sized and shaped to couple with a push tube distal end. In one option, the distal tip includes a seat to receive the push tube distal end. In another option, the seat is a side rail seat and a guide wire extends along the elongate body and is slidably coupled with the side rail seat. The lead assembly includes, optionally, an active fixation device slidably coupled with a portion of the elongate body, and the active fixation device is sized and shaped to couple with the push tube.09-09-2010
20090076521APPARATUS AND METHOD FOR INSERTING IMPLANTS INTO THE BODY - An apparatus includes a first tubular member and a second tubular member coupled to the first tubular member. The first tubular member defines a longitudinal axis and a lumen substantially coaxial with the longitudinal axis. The lumen of the first tubular member is configured to receive at least a portion of an elongate implant. A distal end portion of the first tubular member is tapered along the longitudinal axis. The second tubular member defines a longitudinal axis and a lumen substantially coaxial with the longitudinal axis of the second tubular member. The second tubular member is coupled to the first tubular member such that the longitudinal axis of the first tubular member is substantially parallel to the longitudinal axis of the second tubular member. A distal end portion of the second tubular member is tapered along the longitudinal axis of the second tubular member.03-19-2009
20100228262ATRAUMATIC LEAD REMOVAL SHEATH - The present invention is an implantable device for the atraumatic removal of chronically implanted medical devices.09-09-2010
20100222787TENSION CONTROL DEVICE - A device for controlling a tensional force on an implanted elongated structure during removal of the implanted elongated structure from a body vessel of a patient via a removal tool. The removal tool is of a type that includes a sheath member having a passageway extending therethrough for receiving the elongated structure. A shaft member structured for engagement with the removal tool has a locking member disposed thereon. The locking member is constructed and arranged for selectively locking a position of the elongated structure in a manner to maintain a tension on the elongated structure, and unlocking the elongated structure to permit an adjustment of the tension.09-02-2010
20100042108METHOD OF CARDIAC SURGERY, AND DEFIBRILLATION ELECTRODE, DEFIBRILLATOR, AND ENDOSCOPE APPARATUS FOR THE SAME - To provide a method of cardiac surgery which is capable of facilitating the manipulation of devices in a thoracic cavity so as to thereby simplify the surgery, as well as alleviating physical burdens on a patient, and a defibrillation electrode, a defibrillator, and an endoscope apparatus for the same. There is provided a method of cardiac surgery, comprising: using a device which comprises a treatment unit to be inserted into a thoracic cavity for performing treatment of a heart; inserting a distal end of this device between the heart and a pericardium; thereafter piercing through the pericardium with the distal end of the device; and performing treatment of the heart from the outside of the pericardium by using the treatment unit.02-18-2010
20100198229LEAD EXTRACTION METHODS AND APPARATUS - According to one aspect, a device for assisting in removing an implanted lead is provided. The device comprises a body portion having a center adapted to accommodate the lead, a cutting component coupled to the body portion to assist in separating tissue from the lead, and at least one anchoring component disposed at least partially within the body portion, the at least one anchoring component capable of providing pressure on the lead that resists movement of at least part of the body portion along the lead at least in part by applying fluid pressure.08-05-2010
20120245594APPARATUS FOR IMPLANTING AN ELECTRICAL STIMULATION LEAD - In one embodiment, an introducer is provided for implanting an electrical stimulation lead to enable electrical stimulation of nerve tissue. The introducer includes an outer sheath and an inner penetrator. The outer sheath may accommodate insertion of the electrical stimulation lead and may be inserted into a human body near the nerve tissue. The inner penetrator is removably housed within the outer sheath and includes an inner channel configured to accommodate a guide wire, a tip end having a shape and size substantially conforming to that of the guide wire, a body region having a shape and size substantially conforming to that of the outer sheath, and one or more transition regions substantially connecting the tip end with the body region. At least a portion of the transition regions of the inner penetrator may flex to substantially follow flexures in the guide wire during advancement of the inner penetrator.09-27-2012
20090105724MEDICAL APPARATUS FOR INSERTION INTO BODY CAVITY - A medical apparatus for insertion into a body cavity which comprises an elastic linear body and delivers the distal tip to the predesignated object portion in a living organ, wherein the elastic linear body comprises a plurality of curved portions between the proximal end and the distal end, and at least one pair of adjacent curved portions are present on different planes which intersect each other. The apparatus can spontaneously control the direction thereof, and the distal tip can be delivered to the predesignated object portion in a living organ accurately and easily by pushing the apparatus into a body cavity.04-23-2009
20130131693DELIVERY SYSTEM ASSEMBLIES FOR IMPLANTABLE MEDICAL DEVICES - An inner subassembly of a delivery system assembly extends within a lumen of an elongate outer tube of the assembly, and includes a flared distal end, which is preferably configured to conform to a proximal end of an implantable medical device; a distal-most portion of the outer tube is sized to contain both the flared distal end and an entirety of the medical device. The inner subassembly includes a core, an elongate pull-wire, extending along the core, and a sheath surrounding the pull-wire and the core; the sheath includes a slot opening that allows the pull-wire to pass laterally therethrough. The assembly preferably has a pre-formed curvature along a length of the sheath, and the slot opening extends along the pre-formed curvature. The outer tube is longitudinally moveable relative to the inner subassembly, for example, to deploy the medical device.05-23-2013
20130138117COCHLEAR IMPLANT INSERTION METHOD AND SYSTEM - Techniques for insertion of a cochlear implant include using a rotatable manipulator magnet to steer the tip of the cochlear implant. Steering can use magnetic torque and/or force between the manipulator magnet and a magnetic element coupled to the tip of the cochlear implant to control bending of the cochlear implant.05-30-2013
20130144305TREATMENT DEVICES WITH DELIVER-ACTIVATED INFLATABLE MEMBERS, AND ASSOCIATED SYSTEMS AND METHODS FOR TREATING THE SPINAL CORD AND OTHER TISSUES - The present application includes treatment systems having delivery-activated inflatable members, and associated systems and methods for treating the spinal cord and other tissues. A treatment system in accordance with one embodiment includes a lead body having an opening, an inner surface position around the opening, and an inflatable member carried by the lead body, with at least one of the inflatable member and the lead body including a frangible portion accessible from the opening. The inflatable member can have an expandable interior volume bounded at least in part by the frangible portion. The system can further include a delivery device received in the opening of the lead body and positioned to open a passage through the frangible portions between the interior volume of the inflatable member and the opening of the lead body when the delivery device is removed from the opening of the lead body.06-06-2013
20100331854DEVICE AND METHOD FOR PERFORMING TREATMENT IN A PERICARDIAL SPACE - An apparatus, device and method are provided to enable performing a treatment in a minimally invasive fashion in a pericardial space. The device includes a needle having a sensing means to detect substantially different bodily tissues to enable a practitioner to determine when the distal end of the needle is in the pericardial space; an anchoring means to secure the distal end of the needle inside or in proximity to the pericardial space; and a delivery means for delivering a guidewire to the pericardial space to perform the treatment.12-30-2010
20100168760MEDICAL ELECTRICAL LEAD IMPLANT TOOL - A medical electrical lead implant tool includes a gripping assembly, terminating a distal end of an elongate shaft, adapted to alternately grasp the lead and release the lead and to rotate the lead, and a user control terminating a proximal end of the shaft. An internal drive cable extends within the shaft coupling the gripping assembly to the user control. The user control facilitates single-handed manipulation of a slidable dial, which may be grasped by fingers of a hand for longitudinal and rotational manipulation when a stationary handle is held in a palm of the hand; the longitudinal manipulation causing the gripping assembly, via the drive cable, to alternately grasp the lead and release the lead and the rotational manipulation causing the gripping assembly, via the drive cable, to rotate the lead.07-01-2010
20110009877LEAD INSERTION TOOLS - An exemplary insertion tool configured to facilitate insertion of a lead into a bodily orifice includes a handle assembly configured to facilitate handling of the insertion tool, an insertion assembly coupled to the handle assembly and comprising a rigid holding tube configured to removably couple to a portion of the lead, and a release assembly disposed at least partially within the handle assembly and comprising a release button. The release assembly is configured to release the lead from the holding tube in response to user actuation of the release button. Corresponding insertion tools, systems, and methods are also described.01-13-2011
20110009878CARDIAC LEAD AND STYLET ASSEMBLY - A cardiac lead and stylet assembly for facilitating placement of cardiac leads for use in combination with cardiac rhythm management devices. The assembly includes a cardiac lead having a lumen therethrough and stylet having a core sized to extend through the lumen. The stylet includes a substantially helical coil sized and adapted to contact and threadingly engage an inner wall of the lead at a reduced diameter portion of the lumen. The stylet coil is also adapted to be threadingly disengaged from the lead to facilitate removal of the stylet without dislodging the lead from a desired implantation site in the patient.01-13-2011
20100179563Low Profile Instrument Immobilizer - This document discusses, among other things, examples of a low profile instrument immobilizer and means for positioning the same. In one example, the low profile instrument immobilizer grasps, secures, and immobilizes an electrode or other instrument that extends through a burr hole in a skull to a target location in a patient's brain.07-15-2010
20110245842LEFT CHAMBER PRESSURE SENSOR LEAD DELIVERY SYSTEM - An apparatus for and method of measuring pressure through a septum in a patient's heart. A lead inserted into the right side of a heart is routed through the septum to gain access to the left side of the heart. The lead includes a mounting mechanism that secures the lead to one or both sides of the septal walls. The lead also includes one or more sensors for measuring cardiac pressure on the left side of the heart and, as necessary, the right side of the heart.10-06-2011
20110213382DEVICE FOR CRANIAL IMPLANTATION, AND SYSTEM AND USE THEREOF - A device for cranial implantation, comprising a ferrule and a plate for placement in the ferrule is provided. Furthermore, a neurological implant system comprising a probe and a device for cranial implantation is provided.09-01-2011
20090076522TOOLKIT FOR IMPLANTING AN INTRACORPOREAL LEAD SUCH AS FOR CARDIAC PACING OR SENSING - A toolkit for implanting an intracorporal lead, preferably a cardiac sensing/pacing lead. This toolkit includes a guide-catheter (03-19-2009
20090326550LEAD DELIVERY DEVICE AND METHOD - A medical apparatus includes a guidewire and a fixator catheter. The fixator catheter comprises a tubular body with a distal portion and a proximal portion, and further includes a distal opening, a fixator secured to the distal portion, and a body opening arranged between the fixator and the proximal portion. The guidewire passes through the body opening and the distal opening of the fixator catheter. The fixator is movable between a compact configuration and an expanded configuration and, in the expanded condition, is capable of anchoring the guidewire and fixator catheter in a lumen of a blood vessel.12-31-2009
20090312770PROBE INSERTION DEVICE FOR IMPLANTING A PROBE INTO TISSUE - A probe insertion device for implanting a probe into tissue includes a rigid base that selectively attaches to the probe due to a bond between the base and the probe, that provides a structural backbone to the probe, is longitudinally aligned with the probe, and can be adapted to receive a fluid between the base and the probe. The probe insertion device can include a surface covering at least a portion of the base that reduces the bond between the base and the probe in the presence of the fluid.12-17-2009
20090312769STYLET FOR STIMULATING MEDICAL IMPLANTS - An elongate stylet for removable insertion into a lumen of a stimulating medical implant, comprising a plurality of contiguous longitudinal regions, wherein a cross-sectional area of at least some of the regions are different.12-17-2009
20110082466EPICARDIAL SCREW LEAD FOR STIMULATION / DEFIBRILLATION IMPLANTABLE BY A GUIDE CATHETER INSERTED INTO A PERICARDIAL SPACE - An epicardial screw lead for stimulation/defibrillation implantable by a guide-catheter inserted into the pericardial space is described. The lead is a monodiameter lead with a helical anchoring screw extending axially of the lead body. The guide-catheter (04-07-2011
20110082465ENDOVASCULAR CONDUIT DEVICE WITH LOW PROFILE OCCLUSION MEMBERS - An endovascular conduit device and method for use during cardiac lead extraction and other vascular procedures is presented. The endovascular conduit device includes an outer-sheath, a conduit member, a lumen member, and an inflation member to control the flow of fluid within the conduit member. The endovascular conduit device may be positioned intravascularly as cardiac lead extraction or other procedures are performed. If necessary, as in the case of a vascular tear, the endovascular conduit device further includes expandable members that are activated to allow blood to be forced into the channel of the conduit member. Blood may then be contained and directed safely to bypass the area of vessel injury. In doing so, a catastrophic circulatory collapse or shock is prevented.04-07-2011
20110152877NEUROSTIMULATING LEAD HAVING A STENT-LIKE ANCHOR - A neurostimulating lead having a stent-like anchor is described. A distal portion of the lead is mounted to an exterior of an expandable, stent-like lead anchor. The stent-like lead anchor is formed from a superelastic material and is adapted to transition from a collapsed configuration to an expanded configuration upon deployment in a vessel. In the expanded configuration, the lead anchor presses the distal portion of the lead against at least one vessel wall of a vessel in which the lead is deployed securing and stabilizing the distal portion of the lead within the vessel.06-23-2011
20110077662DEVICES AND METHODS FOR TREATMENT OF GASTROINTESTINAL DISORDERS - An implantation device for releasably holding implantable microstimulators can be used to guide one or more microstimulators to any site within the gastrointestinal tract for implantation. The device can further releasably hold one or more ligation clips for securing the one or more microstimulators in place within the implantation site(s) and/or for closing an incision in which a microstimulator is implanted. The device can be employed using open, laparoscopic, and endoscopic techniques.03-31-2011
20110077661MEANS TO SECURELY FIXATE PACING LEADS AND/OR SENSORS IN VESSELS - According to embodiments of the present invention, a cardiac lead system adapted for fixation to a vessel including an expandable fixation mechanism adapted to engage an inner surface of the vessel and a lead member comprising an anchor structure at distal end, the anchor structure configured to removably engage with fixation mechanism. Such anchor structure may be helical, and may removably engage fixation mechanism upon rotation or an application of torque, and may be extendable and/or retractable. Fixation mechanism may be polymer coated weave and/or mesh to trap anchor structure. Lead member and/or fixation mechanism may include electrodes and/or sensors, and lead member may include L-shape, S-shape, spiral, and/or sinusoidal shape for positioning of electrodes and/or sensors or for facilitated engagement of anchor structure. A guide wire attached to fixation mechanism during deployment may, prior to detachment, serve to guide lead member to a target site at fixation mechanism.03-31-2011
20110077660FOLDABLE, IMPLANTABLE ELECTRODE ASSEMBLY AND TOOL FOR IMPLANTING SAME - An electrode array assembly with a frame that is foldable or bendable on which electrodes are disposed. The frame includes laterally spaced apart bridges. Tabs extend laterally outwardly from the bridges Electrodes are disposed on the tabs. Beams, also part of the frame, extend between the laterally adjacent bridges. The frame can be folded around the beams so as to cause the laterally spaced bridges to at least partially overlap. When the beams are so bent, the electrode carrying tabs extend beyond the bent beams.03-31-2011
20120035615Composite Stylet - A composite stylet for facilitating insertion of an implantable electrode array into either a left or right cochlea comprises a composite having a glass transition temperature between room temperature and body temperature. While relatively stiff and straight at room temperature, the composite stylet is slidably inserted into a longitudinal lumen of the electrode array. The electrode array is then inserted into the cochlea. As the composite stylet within the electrode array warms to body temperature, it becomes compliant, allowing the electrode array to assume a spiral shape. The proximal end of the composite stylet, which is not inserted into the body, retains its stiffness to aid the implanter in inserting the electrode array.02-09-2012
20110071540LEAD WITH DISTAL ENGAGEMENT FEATURE TO FACILITATE LEAD PLACEMENT - An implantable medical lead includes a proximal portion including a contact. The lead also includes a distal portion having a paddle-shaped portion, an electrode, and an engagement element configured to cooperate with a lead advancement tool to facilitate placement of the lead such that distal advancement of the tool relative to the lead pushes the lead distally. The electrode is electrically coupled to the contact, and the engagement element is distal to the electrode. The engagement element is integrally formed with the paddle-shaped portion.03-24-2011
20110034938Method for Manufacturing a Device for Positioning and Fixing Electrodes on Body Organs, Device and Kit of Parts - The invention relates to a device for in vivo positioning and fixing of electrodes on body organs, and the manufacture thereof. The invention provides a device for in vivo position, repositioning and fixing of electrodes on body organs, in particular the human heart, comprising: at least one electrode adapted to exchange electrical signals with a body organ, communication means connected to the electrode for co-action with measuring and control means, and at least one resilient fixation element connected to the electrode, wherein the fixation element is expandable from a relatively compact form to a relatively voluminous form, and wherein the fixation element is adapted to press the electrode under bias against the body organ in the relatively voluminous form in co-action with surrounding body tissue in order to maintain the desired position.02-10-2011
20120303043Medical Device Inserters and Processes of Inserting and Using Medical Devices - An apparatus for insertion of a medical device in the skin of a subject is provided, as well as methods of inserting medical devices.11-29-2012
20110034939DELIVERY OF CARDIAC STIMULATION DEVICES - Some embodiments of an electrical stimulation system employ wireless electrode assemblies to provide pacing therapy, defibrillation therapy, or other stimulation therapy. In certain embodiments, the wireless electrode assemblies may include a guide wire channel so that each electrode assembly can be advanced over a guide wire instrument through the endocardium. For example, a distal tip portion of a guide wire instrument can penetrate through the endocardium and into the myocardial wall of a heart chamber, and the electrode assembly may then be advanced over the guide wire and into the heart chamber wall. In such circumstances, the guide wire instrument (and other portions of the delivery system) can be retracted from the heart chamber wall, thereby leaving the electrode assembly embedded in the heart tissue.02-10-2011
20110178530DIRECT DELIVERY SYSTEM FOR TRANSVASCULAR LEAD - A lead delivery system for delivering a neurostimulation lead to a patient's internal jugular vein using a percutaneous stick. The system comprises a neurostimulation lead adapted to stimulate a vagus nerve from the internal jugular vein. The lead includes a proximal end, a distal end, a generally spiral shaped retaining structure interposed between the proximal and distal ends and configured to retain the lead in the internal jugular vein, an electrode coupled to the retaining structure, and a side port interposed between the retaining structure and the proximal end. The side port provides access to a lumen extending from the distal end to the side port. A guidewire is sized to fit within the side port and lumen and reduce a force exerted by the retaining structure against the internal jugular vein, thereby allowing rotation of the lead and orientation of the electrode by applying a torque to the lead. A catheter has a lumen sized to slideably receive the medical electrical lead and configured to provide access to the internal jugular vein from the percutaneous stick site. A method of delivering a medical electrical lead to a patient's internal jugular vein.07-21-2011
20110178529System, Apparatus, and Method for Facilitating Interface with Laryngeal Structures - A minimally invasive method of introducing an interface element to interface with laryngeal structures of a subject includes forming a subperichondral tunnel on an outside of a cricoid cartilage arch and through the cricoid cartilage arch towards a cricothyroid joint to form an insertion route. The method also includes inserting a hollow needle into the insertion route to a posterior space of a cricoid cartilage plate of the subject, positioning at least one interface element along the insertion route for interfacing with the laryngeal structures of the subject, and retracting the hollow needle back along the insertion route.07-21-2011
20100004662PREFORMED STYLET FOR GUIDING A LEAD TO CONTACT THE SEPTUM - Preformed guiding stylet for introducing a septal lead in contact with the septum or other intra-corporal device in contact with body tissue. This stylet include a flexible wire (01-07-2010
20100004661MEDICAL DEVICE FOR TISSUE ABLATION - A medical device for ablating tissues within a heart chamber comprising a guiding member intended to be introduced in the oesophagus of the patient and an ablating member comprising an ablation electrode mounted at the distal end or tip of catheter. Both the head of the guiding member and the tip of the ablating member are magnetised and can enter into magnetic coupling when their distal ends are brought in close contact. Once the magnetic coupling is achieved, the tip of the ablating member is guided by moving the guiding member. The guiding member can include sensors enabling to monitor physiological parameters during the intervention.01-07-2010
20120203245NERVE STIMULATOR - A nerve stimulation electrode implantation system includes: an introduction portion that has a cylindrical main body which has an internal cavity, and an incision component which has a blunt dissection portion that bluntly dissects biological tissue, and which is formed so as to be transparent, and which is attached to a distal end portion of the main body; an observation portion that is inserted into the introduction portion such that it is able to observe the periphery of the incision component through the incision component; and a peeling portion that is positioned such that it is able to rotate around its own axis and is able to move relatively in this axial direction relative to the introduction portion, and that removes peripheral tissue from the periphery of the nerve tissue.08-09-2012
20120203246IMPLANTABLE 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.08-09-2012
20110257660APPARATUS FOR IMPLANTING AN ELECTRICAL STIMULATION LEAD - In one embodiment, an introducer is provided for implanting an electrical stimulation lead to enable electrical stimulation of nerve tissue. The introducer includes an outer sheath and an inner penetrator. The outer sheath may accommodate insertion of the electrical stimulation lead and may be inserted into a human body near the nerve tissue. The inner penetrator is removably housed within the outer sheath and includes an inner channel configured to accommodate a guide wire, a tip end having a shape and size substantially conforming to that of the guide wire, a body region having a shape and size substantially conforming to that of the outer sheath, and one or more transition regions substantially connecting the tip end with the body region. At least a portion of the transition regions of the inner penetrator may flex to substantially follow flexures in the guide wire during advancement of the inner penetrator.10-20-2011
20110257659STRAIN RELIEF APPARATUS FOR USE WITH IMPLANTABLE MEDICAL LEAD - An extensible implantable medical device includes a body defining a lumen extending through the body. The lumen is configured to receive at least a portion of an implantable medical lead. The body includes a non-rectilinearly shaped portion. The non-rectilinearly shaped portion has a first shape spanning a first distance in a relaxed state. The non-rectilinearly shaped portion has a second, more rectilinear, shape spanning a second distance when subjected to a stretching force. The second distance is greater than the first distance. The non-rectilinearly shaped portion returns to the relaxed first shape upon release of the stretching force and is configured to assume the first shape when the lead is inserted into the lumen and no load is placed on the lead or the shaped body portion.10-20-2011
20100298841TRANS-SEPTAL PACING METHOD AND APPARATUS - A medical electrical trans-septal pacing lead includes a lead body, a tine-like structure terminating a distal end of the lead body and a distal electrode coupled to the lead body at a position proximal to and in close proximity to the structure. A method for delivering left ventricular pacing to a heart includes inserting the trans-septal pacing lead through an inter-ventricular septal wall of the heart, from a right ventricle to a left ventricle, and positioning the distal electrode in a left ventricular endocardial surface of the septal wall.11-25-2010
20080255582Methods and Template Assembly for Implanting an Electrode Array in a Patient - Templates and their methods of use for creating a plurality of holes or openings at predetermined locations in the skull of a patient, wherein the plurality of holes or openings are configured to receive a plurality of electrodes that may monitor brain activity signals from the patient and/or deliver a neuromodulation therapy to the patient.10-16-2008
20110022058Device for Immobilizing a Primary Instrument and Method Therefor - Devices and methods provide accurate targeting, placement, and/or stabilization of an electrode or other instrument(s) into the brain or other body organ, such as to treat severe tremor or other neurological disorders. Targeting is performed using any form of image-guidance, including real-time MRI, CT, or frameless surgical navigation systems.01-27-2011
20110022057APPARATUS AND METHODS FOR TRANSFERRING AN IMPLANTED ELONGATE BODY TO A REMOTE SITE - A transfer guidewire assembly configured to manipulate an implanted elongate body includes a flexible elongate portion, such as a guidewire, and coupler. The flexible elongate body has a proximal end and a distal end attached to the coupler. The coupler can include a catheter and/or a handle. The handle can include a screw. The coupler is configured to be removably attached to the end of an implanted elongate body, for example, by forming an interference fit with the outside diameter of the implanted body. A method for transferring an end of an implanted medical component from first site to a second site within a patient, such as a pacemaker, defibrillator, and/or sensor lead, etc., includes inserting a guidewire into the body at the first site and externalizing the guidewire at the second site. A proximal portion of the implanted component near the first site and is attached to the guidewire. The proximal portion of the implanted component is pulled through the patient's body and out the second site with the transfer guidewire assembly.01-27-2011
20110112548METHODS AND SYSTEMS FOR REMOVAL OF IMPLANTABLE INTRAVASCULAR DEVICES - Improved methods, systems and apparatuses for extracting devices implanted within the vasculature of a patient are provided, including a method of extracting an intravascular device anchored in a vasculature of a patient, the device including a device body and a lead coupled to the device body, the lead having a distal end including an electrode, the distal end being fixed in a heart of the patient, the method comprising forming an incision in the vasculature, disconnecting the lead from the device body, removing the distal end of the lead from the heart, withdrawing the lead from the patient, disconnecting the device body from an anchor, and withdrawing the device body from the patient via the incision.05-12-2011
20100305579DELIVERY CATHETER - A catheter used to deliver a medical electrical lead to a right atrium of a heart in close proximity to a His bundle. The catheter is adapted such that the distal tip confronts the His bundle generally perpendicularly. The catheter includes a proximal portion and a generally hook-shaped distal portion. The distal portion may include curves that direct the distal tip at an angle of over 180 degrees from the direction of the proximal portion.12-02-2010
20100324569SUTURE SLEEVE AND A METHOD FOR POSITIONING A SUTURE SLEEVE AND A LEAD IN RELATION TO EACH OTHER - A suture sleeve has a tubular body of an elastic material which is adapted to be positioned in a human or animal body and is provided with a through bore to allow introducing of a lead or other elongated and flexible body into the bore for implantation of the lead via the suture sleeve. At least a portion of the through bore is formed with a non-circular cross section. The invention also relates to a method for positioning of a suture sleeve and a lead in relation to each other.12-23-2010
20100324570INTRODUCER FOR THERAPY DELIVERY ELEMENTS - The disclosure describes an introducer for facilitating implantation of therapy elements into a patient. The introducer has an elongated body that defines a lumen for advancement of a therapy element to an implant site, and includes a curved portion medially located between substantially straight proximal and distal portions. As an example, the shape of the introducer may allow a clinician to more easily, and without substantially damaging surrounding tissue, find the correct tissue depth and follow that tissue depth to the implant site. For example, the introducer may facilitate implantation of a therapy element within or between desired layers of tissue of the patient. In some embodiments, fluid may be injected through the introducer to create a space within the tissue to implant the therapy element. Fluid may also be evacuated through the introducer prior to implantation.12-23-2010
20100179562STIMULATION LEADS, DELIVERY SYSTEMS AND METHODS OF USE - Devices, systems and methods are provided for accessing and treating anatomies associated with a variety of conditions while minimizing possible complications and side effects. This is achieved by directly neuromodulating a target anatomy associated with the condition while minimizing or excluding undesired neuromodulation of other anatomies. Typically, this involves stimulating portions of neural tissue of the central nervous system, wherein the central nervous system includes the spinal cord and the pairs of nerves along the spinal cord which are known as spinal nerves. In particular, some embodiments of the present invention are used to selectively stimulate portions of the spinal nerves, particularly one or more dorsal root ganglions (DRGs), to treat chronic pain while causing minimal deleterious side effects such as undesired motor responses.07-15-2010
20100179561TOOL FOR RETRACTING A TINE ELEMENT OF A MEDICAL LEAD - A tool for retracting a tine of a lead includes a body extending from a proximal end to a distal end. The body defines 07-15-2010
20120172892IMPLANTABLE MEDICAL DEVICE FIXATION - Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.07-05-2012
20110184437ELECTRODE UNIT, ELECTRODE SYSTEM, ELECTRODE IMPLANTING APPARATUS, AND ELECTRODE IMPLANTING SYSTEM - An electrode system which includes: an electrode unit capable of switching at least a part of its shape between a curved shape and a stretched shape, wherein in the curved shape the electrode unit is wound around a predetermined linear tissue, and wherein in the stretched shape the electrode unit is flat; and a treatment tool that switches the shape of the at least a part of the electrode unit between the curved shape and the stretched shape, wherein the electrode unit includes: an insulating member formed in a sheet shape out of an elastic material; and an electrode that is disposed on a first surface which is an inside surface of a curvature when the insulating member has a curved shape and which applies a predetermined voltage.07-28-2011
20110190786INTRODUCTION OF MEDICAL LEAD INTO PATIENT - Introducers for implanting a lead having a fixation element distal to an electrode include a window, electrode, or conductive member alignable with the electrode of the lead white maintaining the fixation element in a retracted configuration. The window, electrode or conductive member of the introducer provide a mechanism for applying test stimulation signals to determine whether the lead is properly positioned in a patient without deploying the fixation element.08-04-2011
20110190785INTRODUCTION OF MEDICAL LEAD INTO PATIENT - Leads having distal electrodes may be used in application of test stimulation for purposes of implanting a lead having a fixation element distal to an electrode array. The fixation element is proximal the distal electrode. Accordingly, the distal electrode may be advanced beyond a distal end of an introducer while the fixation element may be retained in a retracted configuration by the introducer. If the test signals applied by the distal electrode indicate that the distal electrode is in the desired location of the patient, a series of markings on the lead may be used to facilitate placement of the electrode array at the location previously occupied by the distal electrode; i.e. the desired location of the patient. The electrodes of the electrode array may then be used to provide therapy to the patient.08-04-2011
20110190784CATHETER WITH REMOVABLE SHAPING SKELETON AND METHODS OF USING AND MAKING SAME - A delivery tool for the delivery of an implantable medical lead includes a longitudinally extending tubular body and a longitudinally extending skeleton. The longitudinally extending tubular body includes a distal end, a proximal end, a tubular body segment proximal the distal end, a first lumen extending between the proximal and distal ends, and a second lumen. The first lumen is configured to receive therein the implantable medical lead. The longitudinally extending skeleton is received in the second lumen and includes a distal end, a proximal end, and a portion near the distal end that biases into a non-linear shape. The portion of the skeleton causes the tubular body segment to generally assume the non-linear shape. The skeleton is withdrawable from the second lumen. The proximal ends of the skeleton and the tubular body may have a mechanical engagement arrangement that mechanically engages the proximal ends together in a manner that may be released to allow the proximal ends to be separated from each other. Upon withdrawal of the skeleton from the second lumen, the tubular body segment is free to assume a shape different from the non-linear shape.08-04-2011
20100030228MEDICAL DEVICE SYSTEM AND APPARATUS FOR GUIDING THE PLACEMENT OF A SUBCUTANEOUS DEVICE - An apparatus for guiding advancing of a subcutaneous medical device to a desired implant site that includes a strap extending along a length from a proximal end to a distal end, a handle orientation member positioned at the proximal end of the strap, and a handle capable of being selectively positioned at one of a plurality of orientations along the handle member.02-04-2010
20100030227MEDICAL LEAD IMPLANTATION - A medical lead introducer comprises a shank, a carrier structure on the shank configured to engage a mating carrier structure of a medical lead during a lead introduction procedure, and a blunt dissection element located on a distal end of the shank. The blunt dissection element is configured to shield at least a distal portion of the medical lead when the medical lead is engaged by the carrier structure during the lead introduction procedure. In some embodiments, the medical lead introducer may be part of a kit including the medical lead.02-04-2010
20100023020CAM LOCK BURR HOLE PLUG FOR SECURING RETAINER/PLUG BASE - 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
20110218549SYSTEMS AND METHODS FOR MAKING AND USING A TRIAL STIMULATION SYSTEM HAVING AN ELECTRICAL CONNECTOR DISPOSED ON A TRIAL STIMULATION LEAD - A trial stimulation lead assembly for providing electrical stimulation of patient tissue during a trial stimulation includes a trial stimulation lead for insertion into a patient. The trial stimulation lead includes an elongated lead body having a length and a longitudinal axis. A plurality of electrodes are disposed at a distal end of the lead body. An electrical connector is disposed at a proximal end of the lead body. The electrical connector includes an outer case and a contact array disposed along the outer case. The contact array extends transversely to the longitudinal axis of the lead body. A plurality of electrical conductors extend along the length of the lead body and couple each of the plurality of electrodes to at least one of the plurality of contacts. A lumen extends along at least a portion of the length of the lead body.09-08-2011
20110218548CARTRIDGE FOR AN ELECTRODE ARRAY INSERTION DEVICE - A device, system and method for inserting a pre-curved electrode array (09-08-2011
20100016864LEAD DELIVERY DEVICE AND METHOD - A lead delivery apparatus and a method of delivering a medical lead to an anatomic target site. The method includes inserting a hydraulic plug into an internal delivery lumen of a delivery shaft, and coupling a medical lead to the hydraulic plug. Hydraulic pressure is applied to the hydraulic plug through the delivery lumen, thereby moving the hydraulic plug toward an anatomic target site, and advancing the medical lead toward the target site.01-21-2010
20110118747HEPATIC ELECTRICAL STIMULATION - The present invention relates to a method of providing electrical stimulation to a liver of a subject which includes providing one or more stimulatory electrodes to the liver of the subject and providing electrical stimulation to the liver of the subject. The invention further relates to methods of reducing risk factors of metabolic syndrome, treating diabetes, treating a subject having eating disorders and reducing glucose levels of a subject using methods of the present invention.05-19-2011
20080200925METHODS AND SYSTEMS FOR SECURING ELECTRODE LEADS - Methods and systems for securing electrode leads are disclosed. An electrode system in accordance with one embodiment includes an electrode contact, a connector attached to the electrode contact, and an electrical lead. The electrical lead can be received in an opening of the contact, with an inner surface of the opening applying a generally uniform radial pressure around a circumference of the electrical lead. For example, the contact can have a tubular shape, optionally with an elongated slit, and can be crimped around the lead to apply the generally uniform radial pressure.08-21-2008
20110098720SNARING SYSTEMS AND METHODS - Snaring systems and methods involve engaging objects such as pacemaker pacing leads within a patient. Physicians can use snaring systems having loops, tags, and roller mechanisms to remove a pacing leads from a patient. For example, snaring systems can be inserted through a jugular access site, engaged with a pacemaker pacing lead, and withdrawn through the jugular access site so as to remove a portion of the pacing lead. Lead extraction techniques can be employed to further dislodge the pacing lead from the patient.04-28-2011
20120004667HELIX RETRACTION ASSIST MECHANISM - An active fixation implantable medical lead may include an electrode base that is configured to accommodate an extraction stylet that may be used if the fixation helix is not otherwise easily retracted. An extraction tool may be used in combination with the extraction stylet in extraction techniques designed for retraction of a fixation helix.01-05-2012
20120209285SYSTEMS AND METHODS FOR IMPLANTING PADDLE LEAD ASSEMBLIES OF ELECTRICAL STIMULATION SYSTEMS - An insertion kit for percutaneously implanting an electrical stimulating paddle lead into a patient includes a paddle lead introducer. The paddle lead introducer facilitates percutaneous implantation of a paddle lead into the patient. The paddle lead introducer includes a sheath and a dilator. The sheath is insertable into the patient. The sheath is configured and arranged to receive a paddle lead during implantation of the paddle lead into the patient. The sheath can divide into at least two parts for removal of the sheath from the paddle lead upon implantation of the paddle lead. The dilator is insertable into the sheath. A first end of the dilator defines an aperture at a tip of the first end. The first end of the dilator has a transverse circumference that increases from the tip towards a second end.08-16-2012
20110098719COCHLEAR IMPLANT WITH IMPROVED ELECTRODE ARRAY AND CONTROLLER - A cochlear implant device includes a deformable and stretchable flexible strip composed of a biological compatible material and positioned about a longitudinal axis so as to form a spiral. The implant device has a plurality of conductive strips with electrode windows formed so as to expose a segment of each conductive strip. A density of the electrode windows is sufficient to monitor a distance of the flexible strip from a non-conductive tissue of a patient in a 360 degree field of view about the longitudinal axis. A method of inserting a cochlear implant includes providing a multi-joint robot comprised of a series of actuator units, guiding the multi-joint robot into an inner ear of a patient, monitoring the position of the multi-joint robot relative to a non-conductive portion of the patient; and applying current to the multi-joint robot so as to adjust the position of the actuator units.04-28-2011
20110166582Endoscopic Device Delivery System - A system and method are disclosed for an implantable gastric stimulation system within the stomach. The stimulation system includes an electronics anchor, electrode lead anchor, implantable pulse generator and external programmer. The electronics anchor is configured to attach to the stomach wall at a first location and the electrode lead anchor configured to attach to the stomach wall at a second location. The electrode lead anchor includes one or more electrodes configured to contact the stomach wall and a flexible lead portion coupled to the one or more electrodes at one end with an the electrical connector portion at the other end. The implantable pulse generator has electronic circuitry and is attached to the electronics anchor; the electronic circuitry is connected to the electrical connector of the electrode lead anchor and can communicate with the one or more electrodes. The external programmer is used to communicate with the electronic circuitry of the pulse generator via a telemetry device to provide stimulation instructions to the pulse generator.07-07-2011
20120016377TUNNELING TOOL FOR IMPLANTABLE LEADS - A tunneling tool for creating a pathway for implanting a therapy delivery element in a living body. The tunneling tool includes a malleable elongated shaft having a distal end. A sheath having a lumen is slidably positioned over a portion of the shaft. A primary handle secured to proximal end of the shaft permits a user to advance and manipulate the shaft and the sheath in the living body. A secondary handle with an opening is slidably positioned on the shaft between the primary handle and the sheath. The opening has a diameter less than an outside diameter of a proximal end of the sheath. A locking mechanism releasably engages the secondary handle to the primary handle. The sheath is retained in a desired location within the living body by securing the secondary handle relative to the living body as the primary handle is used to remove the shaft from the sheath.01-19-2012
20120016378SYSTEMS AND METHODS FOR RADIAL STEERING OF ELECTRODE ARRAYS - A device for brain stimulation includes a lead having a longitudinal surface, a proximal end and a distal end. A plurality of electrodes are disposed along the longitudinal surface of the lead near the distal end of the lead. At least one marker is disposed on the longitudinal surface of the lead. The at least one marker is configured and arranged to identify a relative position of the plurality of electrodes.01-19-2012
20120022551DELIVERY ASSEMBLY FOR PERCUTANEOUSLY DELIVERING AND DEPLOYING AN ELECTRODE ARRAY AT A TARGET LOCATION, THE ASSEMBLY CAPABLE OF STEERING THE ELECTRODE ARRAY TO THE TARGET LOCATION - An electrode array and a delivery assembly. The array is wrapped around a flexible core part of the delivery assembly. A sheath, also part of the delivery assembly, is disposed over the array and core. Steering cables extend through the core or sheath. Once the delivery assembly-encased array is inserted in the body, the combination is advanced to the tissue over which the array is to be deployed. By pulling on the steering cables the array and assembly are steered into position. Once the array is in position, the sheath is retracted, the array deploys over the target tissue.01-26-2012
20120059389Implantable Micro-Generator Devices with Optimized Configuration, Methods of Use, Systems and Kits Therefor - Disclosed are various implantable medical devices adapted and configured to operation with a micro-generator comprising: an elongated housing; one or more longitudinally slidable elongated magnets; one or more coils positioned exteriorly, interiorly or integrally along at least a portion of the housing; a power wire in electrical communication with the one or more coils and with an implantable medical device; wherein the implantable micro-generator is adapted and configured to generate energy and communicate the generated energy to the implantable medical device. Additionally, methods of deploying and using the medical devices are contemplated, as well as systems, kits, and communication networks.03-08-2012
20120209283Needle and lead and methods of use - Example embodiments provide a medical lead adapted for to be steerable during insertion into an animal body. The lead comprises a structure comprised of a tip portion and a body. The tip portion is on a distal end of the structure. The tip portion is flexible in a direction that is substantially parallel to a principle plane. The lead provides structures to change the shape of the tip portion during insertion of the lead into an animal whereby the lead can move in a desired direction. Other example embodiments provide a needle for medical use comprised of: a needle having a shaft and a tip section; an opening in the shaft; a lumen communicating with the opening and a plurality of holes in the tip section. Aspects of the needle have symmetric and asymmetric tip sections and an overlying sheath. Example methods embodiments are provided that use the leads, needles and needle assemblies.08-16-2012
20120209284Medical Lead and Implantation - A lead for navigating small vessels and a catheter system for implantation of leads into small vessels. Veins that return blood to the heart against the force of gravity often have valves in them to prevent backflow of deoxygenated blood. Leads and catheter systems in accordance with embodiments of the invention allow cannulation and lead implantation in small, tortuous, obstructed, and difficult to access veins enabling a range of stimulation and sensing applications.08-16-2012
20120071890METHOD AND APPARTUS FOR COCHLEAR IMPLANT SURGERY - A system for cochlear implant surgery includes a reference device having at least a portion adapted to be arranged at a fixed position relative to a cochlea of a patient to provide a reference position, an image acquisition and processing system adapted to acquire an image of at least a portion of the cochlea relative to the reference position and to provide an implant plan based at least partially on the acquired image, and an implant system adapted for implanting a cochlear lead array using the reference position and the implant plan.03-22-2012
20110066160SYSTEMS AND METHODS FOR INSERTING STEERABLE ARRAYS INTO ANATOMICAL STRUCTURES - Systems and Methods are provided for inserting a steerable array into an anatomical structure of the body. The system includes an insertion module for holding a proximal end of the steerable array and a force sensor configured to detect force on the steerable array and to produce force information. The system includes a position sensor configured to detect a position of the insertion module and to produce position information, the position information including a lateral position along an insertion axis and a first approach angle relative to a first reference axis. The system further includes a processor configured to receive the force information from the force sensor and the position information from the position sensor. The processor outputs performance information to a user. The performance information includes an indication of a first differential approach angle relative to an insertion path plan.03-17-2011
20110106101Steerable Stylet - A stylet for inserting an electrode array into a cochlea includes a first sensor insertable within a lumen of the electrode array and sensitive to force applied by a lumen wall to the first sensor and a first actuator adapted to move the electrode array in response to the force sensed by the first sensor.05-05-2011
20110106100STEERABLE PERCUTANEOUS PADDLE STIMULATION LEAD - The present disclosure relates to a percutaneous paddle stimulation lead that can be steered during implantation. The percutaneous paddle stimulation lead that can be steered in a thickness plane of percutaneous paddle stimulation lead during implantation.05-05-2011
20110106099LEAD EXTRACTION DEVICE - The disclosure pertains to a lead extraction device which utilizes a chamfered coring tip to separate an implanted object, such as a pacemaker lead, from fibrous tissue and thereby permit the implanted object to be extracted from a body. The lead extraction device features an elongate body having a lead gripping mechanism. The gripping mechanism grips a lead to prevent kinking or simultaneous rotation of the lead with the lead extraction device that may cause tissue damage. The inner lumen of lead extraction device is preferably dimensioned so that a lead will fit within. The lead extraction device is thereby tracked over the lead. The chamfered coring tip on the distal end of the lead separates the lead from fibrous tissue. Through the disclosed lead extraction devices of the present disclosure, the lead may be separated along its length, as well as separated at its distal end from fibrous tissue, thereby permitting the lead to be readily extracted from the body.05-05-2011
20100094311Implant Electrode and Accessories for Use in Robotic Surgery - An implant electrode for a cochlear implant system includes a basal electrode lead passing from an implant housing to a mastoid cortex surface for carrying one or more electrical stimulation signals from the implant housing. An apical electrode array fits through a cochleostomy opening into a cochlea scala and has multiple electrode contacts for applying the electrical stimulation signals to target neural tissue. A middle electrode section passes through the mastoid cortex and the middle ear to the cochleostomy opening for connecting the electrode lead and the electrode array.04-15-2010
20120165827Pacemaker Retrieval Systems and Methods - A catheter system for retrieving a leadless cardiac pacemaker from a patient is provided. The cardiac pacemaker can include a docking or retrieval feature configured to be grasped by the catheter system. In some embodiments, the retrieval catheter can include a snare configured to engage the retrieval feature of the pacemaker. The retrieval catheter can include a torque shaft selectively connectable to a docking cap and be configured to apply rotational torque to a pacemaker to be retrieved. Methods of delivering the leadless cardiac pacemaker with the delivery system are also provided.06-28-2012
20120221014TRANSVASCULAR ELECTRODE SYSTEM AND METHOD - A transvascular electrode system includes an expandable electrode-carrying anchor. The anchor is intravascularly advanced in a compressed position to a first site in a blood vessel. A first portion of the anchor expands to position an electrode against the vessel wall, while a second portion remains is compressed. Mapping is performed by delivering stimulation energy from the electrode and measuring the response (e.g. blood pressure, heart rate, and/or related parameters). The first portion is at least partially collapsed and the electrode system is moved to a second site. The first portion is expanded to position the electrode into against the vessel wall, while the second portion remains compressed. Additional mapping is performed. The process is repeated until the anchor electrode position is optimized, at which point the second portion of the anchor is expanded to chronically retain the electrode in the vessel.08-30-2012
20120130397MULTI-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.05-24-2012
20120130398SYSTEMS AND METHODS FOR TREATMENT OF DRY EYE - A stimulation system stimulates anatomical targets in a patient for treatment of dry eye. The system may include a controller and a microstimulator. The controller may be implemented externally to or internally within the microstimulator. The components of the controller and microstimulator may be implemented in a single unit or in separate devices. When implemented separately, the controller and microstimulator may communicate wirelessly or via a wired connection. The microstimulator may generate pulses from a controller signal and apply the signal via one or more electrodes to an anatomical target. The microstimulator may not have any intelligence or logic to shape or modify a signal. The microstimulator may be a passive device configured to generate a pulse based on a signal received from the controller. The microstimulator may shape or modify a signal. Waveforms having different frequency, amplitude and period characteristics may stimulate different anatomical targets in a patient.05-24-2012
20120130396PEEL-AWAY IS-4/DF-4 LEAD IMPLANT TOOL WITH ELECTRICAL CONTACTS - A peel-away lead implant tool is described. The peel away lead implant tool is adapted to be disposed over the terminal connector of a lead during an implantation procedure to protect the terminal connector. The peel-away lead implant tool includes a flexible polymer sheath including electrical contacts formed in a contact region of the sheath. The electrical contacts can be either metal foil contacts or conductive polymer contacts and extend from an outer surface to an inner surface of the sheath such that when the testing apparatus is coupled to the lead implant tool, the electrical contacts are pressed into electrical contact with the ring electrodes located on the terminal connector. The lead implant tool also includes various removal means facilitating the easy removal of the implant tool from the terminal connector when the implantation procedure is complete.05-24-2012
20120172891IMPLANTABLE MEDICAL DEVICE FIXATION TESTING - In one example, this disclosure includes a kit for implanting an implantable medical device within a patient. The kit comprises a delivery catheter including an inner member and an outer member. The kit further comprises the implantable medical device. The implantable medical device is adjacent the inner member and constrained by the outer member. The kit further comprises a force sensor in mechanical communication with the implantable medical device via the inner member. The force sensor collects force feedback data representing force applied by the inner member on the implantable medical device. The kit further comprises a user communication module configured to deliver force feedback information corresponding to the force feedback data collected by the force sensor to a user.07-05-2012
20120221015SACRAL NEUROMODULATOR - The invention relates to a stimulation electrode for a stimulation device for stimulating organs in the case of spinal paraplegia, more particularly in the case of detrusor sphincter dyssynergia, including an electrode shaft, at one end of which an electrode tip is arranged for emitting a stimulation signal and at the other end of which a connection region is provided for a signal line, and also at least one fixing mechanism for fixing the position of the electrode shaft in the surrounding tissue along the longitudinal axis of said electrode shaft, fixing mechanism having at least one holding member preventing a withdrawal and at least one holding member preventing an advance.08-30-2012
20100010503SYSTEMS AND METHODS FOR PLACING HEART LEADS - Devices, systems, and methods for the localization of body lumen junctions and other intraluminal structure are disclosed. Various embodiments permit clinicians to identify and locate lesions and/or anatomical structures within a lumen and accurately place leads and/or devices within a lumen, through determining the intralumen conductance and/or cross-sectional area at a plurality of locations within the body lumen.01-14-2010
20100010502ENDOVASCULAR CONDUIT DEVICE FOR INCREASING SAFETY OF CARDIAC LEAD EXTRACTION AND OTHER VASCULAR PROCEDURES - An endovascular conduit device and method for use during cardiac lead extraction and other vascular procedures is presented. The endovascular conduit device includes an outer-sheath, a conduit member, a lumen member, and an inflation member to control the flow of fluid within the conduit member. The endovascular conduit device may be positioned intravascularly as cardiac lead extraction or other procedures are performed. If necessary, as in the case of a vascular tear, the endovascular conduit device further includes expandable members that are activated to allow blood to be forced into the channel of the conduit member. Blood may then be contained and directed safely to bypass the area of vessel injury. In doing so, a catastrophic circulatory collapse or shock is prevented.01-14-2010
20120253359SYSTEMS AND METHODS FOR LEAD PLACEMENT OPTIMIZATION DURING LEAD IMPLANTATION - Disclosed herein is a method of optimizing the implantation of an implantable medical lead into a patient to optimize electrotherapy administered via the lead. The method includes: inserting the lead into the patient, the lead including a first electrode; providing a second electrode in the patient, wherein the second electrode is not part of the lead; generating an electrical vector between the first electrode and second electrode, the electrical vector being generated as the lead is being implanted; analyzing the electrical vector as the lead is being implanted; and optimizing the implantation of the lead based off of the analysis of the electrical vector to optimize electrotherapy administered via the lead.10-04-2012
20120232563IMPLANT CATHETERS FOR PHYSIOLOGICAL PACING - A catheter for implanting a cardiac pacing electrode within a right atrial septum, to stimulate the His bundle, includes a deflectable shaft having a wall that includes an adjustable segment, a pre-formed segment and a substantially straight distal segment. The pre-formed segment extends distally from a pull wire anchoring member of the adjustable segment and out of a single plane in which the adjustable segment is deflectable; and the substantially straight distal segment extends distally, directly from the pre-formed segment, along a plane oriented at an angle with respect to that in which the adjustable segment is deflectable, and over a length between approximately seven and nine millimeters. An arc through which the pre-formed segment extends is preferably greater than approximately 80 degrees and less than approximately 130 degrees, and the angle of the plane of the distal segment is preferably between approximately 40 and 60 degrees.09-13-2012
20120232564EPIDURAL NEEDLE FOR SPINAL CORD STIMULATION - An epidural needle for implanting therapy delivery elements in an epidural space. The epidural needle includes at least an outer cannula containing an inner cannula, and a stylet located within the lumen of the inner cannula. The inner cannula substantially extends across the elongated opening at the distal end of the outer cannula to form a seal with the ligament during “loss of resistance” testing. Loss of resistance testing is performed by removing the stylet from the inner cannula. Once the epidural needle is positioned in the epidural space, the inner cannula is removed to facilitate implantation of a therapy delivery element in the epidural space.09-13-2012
20120239057DEVICE AND METHOD FOR MANIPULATING AND INSERTING ELECTRODE ARRAYS INTO NEURAL TISSUES - An insertion device for inserting a therapeutic device into organic tissue is disclosed and described. The device is particularly suited to insertion of such as nerve stimulating electrode arrays. The insertion device has at least one controllable positive pressure source (greater than atomospheric), two vacuum sources and a dual vacuum pressure control system. The positive pressure and the dual vacuum pressure control systems are manipulated to allow the manipulation and insertion or retrieval of a therapeutic device. The insertion device can be spatially manipulated by hand, without requiring other equipment for positioning the insertion device.09-20-2012
20120271317Surgical Tool for Electrode Implantation - The present invention is a surgical tool for implanting an electrode array and its connected cable within an orbital socket. The insertion tool is used to aid the surgeon in pulling the electrode wire and array through the scull, four-rectus muscles of the eye, and the sclera. The insertion tool consists of a medical grade ABS material that is commonly used in various medical products.10-25-2012
20120271316INSERTION TOOL FOR PADDLE-STYLE ELECTRODE - The present disclosure describes various embodiments of an insertion tool that affords steerability of the paddle-style electrode during implantation without causing damage to the insulation and/or the contacts of the paddle-style electrode. One embodiment is described as having a “pin fork” configuration; another a “shovel” configuration; and yet another has tabs or a lumen on the paddle-style electrode for facilitating the insertion of a stylet. The various embodiments for the insertion tool allow for adjustments of the paddle-style electrode in both the medial/lateral and inferior/superior directions allowing the surgeon to steer the paddle-style electrode to the desired stimulation site within the epidural space of the spinal column.10-25-2012
20120271315INSERTION TOOL FOR PADDLE-STYLE ELECTRODE - A system for lead implantation includes a lead having a paddle-style electrode extending from a proximal end to a distal end, the paddle-style electrode, having a back surface; an active surface; a plurality of electrode contacts disposed on the active surface; and a longitudinal lumen extending into the paddle-style electrode and defining an opening at the proximal end of the paddle-style electrode. The lead also has at least one lead body extending from the paddle-style electrode. The at least one lead body includes conductors that are electrically coupled to the electrode contracts. The system also includes an insertion tool having a distal portion for insertion into the longitudinal lumen of the paddle-style electrode. At least the distal portion of the insertion tool or the longitudinal lumen (or both) includes a low friction material forming a surface with a coefficient of friction of 0.1 or less.10-25-2012
20120323254MEDICAL ASSEMBLIES AND METHODS FOR IMPLEMENTATION OF MULTIPLE MEDICAL LEADS THROUGH A SINGLE ENTRY - Assemblies and methods provide for implantation of multiple medical leads to a defined space within the body, such as the epidural space, through a single entry. A catheter having multiple lumens or alternatively a single oblong lumen may be used. A distal end of the catheter enters the defined space through the single entry such that the distal ends of the multiple lumens or the oblong lumen are present in the defined space. Medical leads are introduced through the multiple lumens or the oblong lumen into the defined space. In some cases, the distal end of the catheter may be deflectable to direct the medical leads within the defined space. In other cases, sheaths may be present within each lumen of the catheter where the sheaths may be extended into the defined space and deflect to direct the medical leads that are being passed through a lumen of the sheaths.12-20-2012
20120323253DEVICE AND METHOD FOR POSITIONING AN ELECTRODE IN TISSUE - A device for positioning an electrode in tissue includes: a lead body having a distal portion; an electrode array coupled to the lead distal portion; an anchoring element having an anchor tip and being operable in a first configuration in which the anchor tip is retracted within the lead and in a second configuration in which the anchor tip is extended outside the lead and configured to fixate within the tissue; and a displacement mechanism that is actuated to bias the electrode array or the anchoring element toward the tissue. A method for positioning an electrode in tissue includes: navigating, to the tissue, a lead with an electrode array, an anchoring element with a distal anchor tip, and a displacement mechanism; biasing the electrode array and anchoring element towards the tissue with the displacement mechanism; and deploying the anchoring element, and verifying fixation of the anchor tip within the tissue.12-20-2012
20120323252TIP FOR LEAD EXTRACTION DEVICE - A tip engageable with an elongated sheath member for extracting a cardiac lead from an obstruction in a body vessel of a patient. The tip includes a tip body having a proximal end, a distal end, and a passageway extending therethrough. The tip body proximal end is engageable with the distal end of the sheath member distal end. The passageway of the tip is aligned with the passageway of the sheath such that the cardiac lead is receivable therein. The tip body distal portion has a plurality of sides extending circumferentially therearound, wherein the sides have respective ends and an inwardly directed radiused portion between the ends.12-20-2012
20110238078DEVICE AND METHOD FOR POSITIONING AN IMPLANTED STRUCTURE TO FACILITATE REMOVAL - A device for adjusting a position of an elongated structure implanted in biological tissue to facilitate removal. An inner sleeve is received in an outer sleeve, and movable relative thereto. A manipulator mechanism is engaged with the inner sleeve distal end, and extends in a distal direction. The manipulator mechanism is arranged to capture the elongated structure, and to lock the elongated structure to the device upon relative movement of the sleeves. A handle is engaged with the inner sleeve, and a plunger is engaged with the outer sleeve. The plunger is engaged with the handle and movable relative thereto, wherein the outer sleeve advances distally relative to the inner sleeve to maneuver the manipulator mechanism to capture the implanted elongated structure. The position of the elongated structure may be controllably adjusted to facilitate removal thereof from the biological tissue.09-29-2011
20110238077INTRAVASCULAR MEDICAL DEVICE - An implantable medical device system, including an implantable medical device and an associated implant tool. The device has a hermetic housing containing a power source and electronic circuitry. One or more tines are mounted to the housing movable from a first position extending away from the housing to a second position adjacent the housing. The device is provided with a rotational fixation mechanism. The Implant tool includes an elongated sheath sized to receive the device and provided with internal grooves sized to engage with the tines when the tines are located in their second position. The implant tool may further include a push tool located with the sheath and movable within the sheath to advance the device distally out of the sheath. The sheath may be provided with a closed distal end openable by passage of the device therethrough.09-29-2011
20120277761SURGICAL TOOLS TO FACILITATE DELIVERY OF A NEUROSTIMULATOR INTO THE PTERYGOPALATINE FOSSA - A surgical tool configured to facilitate delivery of a neurostimulator to a craniofacial region of a subject includes a handle portion, an elongate shaft having a contoured distal portion, and an insertion groove on the elongate shaft. The elongate shaft is configured to be advanced under a zygomatic bone along a maxillary tuberosity towards a pterygopalatine fossa. The distal portion includes a distal dissecting tip. The insertion groove is configured to receive, support, and guide a medical device or instrument.11-01-2012
20120277760MEDICAL TUNNELING DEVICE AND METHOD - A medical device assembly includes a tunneler having a proximal end and a distal end and a carrier element fixed to the distal end of the tunneler. In various embodiments the carrier element is configured to be slidably disposed within a lead connection lumen. In various embodiments the carrier element includes a plurality of recesses configured to engage a lead extension set screw. In various embodiments the carrier element can freely rotate relative to the rest of the tunneler.11-01-2012
20120089153PERCUTANEOUS ACCESS FOR SYSTEMS AND METHODS OF TREATING SLEEP APNEA - Systems and methods are described and illustrated for percutaneously implanting a stimulation lead for treating sleep-related disordered breathing.04-12-2012
20110276056METHODS, SYSTEMS AND DEVICES FOR REDUCING MIGRATION - Devices, systems and methods for reducing migration of leads, catheters and similar devices are provided. In particular, devices, systems and methods are provided for creating a slack anchor which assists in maintaining the lead or catheter in a desired position. In some embodiments, the slack anchor is created within the epidural space. When targeting nerve anatomy within the spinal column or in the vicinity of the epidural space, anchoring within the epidural space allows the associated lead or catheter to be anchored as close to the target therapy site as desired or possible. By anchoring close to the target therapy site, the risk of movement or migration is significantly reduced or eliminated.11-10-2011
20120095479Endocardial Lead Removing Apparatus - The invention provides an apparatus having a tubular member for receiving an endocardial lead implanted within a patient's body. Disposed generally at a distal end of the tubular member is at least one blade or cutting surface. An adjustment mechanism moves the blade between retracted and extended positions to engage the cutting surface with the endocardial lead to cut the lead. Once severed, the cut portion of the lead remains within an inner channel of the tubular member and the apparatus and cut portion of the lead are removed from within the patient. Various embodiments include the blade pivotally connected to the distal end of the tubular member and activated by a wire adjustment mechanism. Others include a metallic wire for slicing through the lead. Still others include a pneumatically actuated adjustment mechanism that inflates to move the blade and engage the cutting surface with the lead.04-19-2012
20120095478IMPLANTABLE DEVICE AND TISSUE ANCHOR - Embodiments of the invention are directed to an implantable device that includes a tissue anchor for securing a portion of the device to tissue of the patient. Embodiments of the implantable device include an electrode lead and a pelvic treatment apparatus.04-19-2012
20110319908TOOLS, SYSTEMS, AND METHODS FOR INSERTING A PRE-CURVED ELECTRODE ARRAY PORTION OF A LEAD INTO A BODILY ORIFICE - Exemplary insertion tools, systems, and methods for inserting a pre-curved electrode array portion of a lead into a bodily orifice are described herein. An exemplary insertion tool includes a handle assembly, a slider assembly, an insertion assembly coupled to the handle assembly, and a retractor assembly disposed at least partially within the handle assembly and configured to selectively couple to a straightening member inserted into the pre-curved electrode array portion and at least partially retract the straightening member from the pre-curved electrode array portion in response to actuation by a user of the slider assembly. The retractor assembly may comprise a spring-loaded retractor member configured to move from a distal position to a proximal position in response to actuation by the user of the slider assembly to at least partially retract the straightening member from the pre-curved electrode array portion. Corresponding insertion tools, systems, and methods are also described.12-29-2011
20110319907Cochlear Implant System with Removable Stylet - A cochlear implant system includes a cochlear electrode array which has a flexible body with a distal end, a plurality of electrodes supported along a length of the flexible body, and a lumen formed in the flexible body. The cochlear implant system also includes a stiffening stylet which is fully inserted into the lumen prior to insertion of the electrode array into the cochlea. The stiffening stylet is configured such the stylet does not extend to the distal end of the flexible body and remains stationary within the lumen to prevent buckling of the electrode array during insertion of the electrode array through a cochleostomy and into the cochlea. The stiffening stylet is configured to be withdrawn from the lumen after the electrode array is positioned within the cochlea. A method for implanting an electrode array into a cochlea is also provided.12-29-2011
20100168761DEVICES FOR ACCESSING THE PERICARDIAL SPACE SURROUNDING THE HEART - Devices for accessing the pericardial space surrounding the heart. In at least one embodiment of a delivery catheter for use in accessing a pericardial space surrounding the external surface of a heart, the delivery catheter comprises comprising an elongated tube comprising a wall extending from a proximal end of the tube to a distal end of the tube, a first lumen, and a steering channel extending from a proximal end of the tube to a distal end of the tube, the steering channel forming an orifice at the distal end of the tube, and a steering wire system at least partially located in the steering channel, the steering wire system comprising at least two steering wires attached to the wall of the tube within the steering channel and a controller attached to a proximal end of each of the at least two steering wires, wherein the first lumen extends from approximately the proximal end of the tube to or near the distal end of the tube, the first lumen having a bend, relative to the tube, at or near the distal end of the tube and an outlet through the wall of the tube at or near the distal end of the tube.07-01-2010
20100168759MICRO MANIPULATOR FOR ELECTRODE MOVEMENT IN NEURAL SIGNAL RECORDING - This disclosure relates to a micro manipulator having a simple structure and having high possibility of recording a biological signal of a neuron at a desired position by improving positioning resolution of an electrode disposed adjacent to a subject's brain neuron or an electrode holder attached with the electrode. The micro manipulator according to the disclosure includes: a motor which includes a shaft and a vibration portion; a mobile which is connected to the shaft so as to be movable along the shaft; and a frame which supports the motor, wherein an electrode is connected to the mobile in a direction parallel to a longitudinal direction of the shaft, and wherein when the mobile moves linearly in accordance with a vibration of the shaft due to the vibration portion, the electrode moves linearly.07-01-2010
20110160743APPARATUS FOR MANIPULATION OF IMPLANTABLE MEDICAL DEVICE AND ASSOCIATED METHOD - A surgical device for manipulation of an implantable medical device includes a surgical tool and a controller. The surgical tool may include a mechanical interface that enables a surgical instrument to hold and position the surgical tool, an electrical drive mechanism with a drive shaft, the electrical drive mechanism selectively controlling bidirectional rotation of the drive shaft, and a grasping mechanism operationally coupled to the drive shaft. The grasping mechanism for releasably grasping the implantable medical device. The controller includes a first control device. An implant activation of the first control device controls the electrical drive mechanism to rotate the grasping mechanism in a first direction. A removal activation of the first control device controls the electrical drive mechanism to rotate the grasping mechanism in an opposite direction. A method for manipulation of the implantable medical device is also provided.06-30-2011
20080221589Device and Method for Manipulating and Inserting Electrode Arrays into Neural Tissues - An insertion device for inserting a therapeutic device into organic tissue is disclosed and described. The device is particularly suited to insertion of such as nerve stimulating electrode arrays. The insertion device has at least one controllable positive pressure source (greater than atomospheric), two vacuum sources and a dual vacuum pressure control system. The positive pressure and the dual vacuum pressure control systems are manipulated to allow the manipulation and insertion or retrieval of a therapeutic device. The insertion device can be spatially manipulated by hand, without requiring other equipment for positioning the insertion device.09-11-2008
20110270269IMPLANTABLE MEDICAL LEAD INCLUDING A PLURALITY OF TINE ELEMENTS - An implantable medical electrical lead comprises a lead body extending between a distal end and a proximal end, and the distal end having at least one electrode of an electrode array extending longitudinally from the distal end toward the proximal end. The lead body at its proximal end may be coupled to a pulse generator, additional intermediate wiring, or other stimulation device. A fixation mechanism is formed on or integrally with the lead body proximal to the electrode array that is adapted to be implanted in and engage subcutaneous tissue, particularly muscle tissue, to inhibit axial movement of the lead body and dislodgement of the stimulation electrodes. The fixation mechanism comprises a plurality of tine elements arrayed in a tine element array along a segment of the lead.11-03-2011
20110270268Coupling for a Medical Delivery Device - The present disclosure relates to a coupling, in particular a hub (11-03-2011
20130103048Method and Apparatus for Securing a Guide Tube - A guide tube is used for guiding an instrument through a hole within tissue of a patient. The guide tube includes a cannula member defining a passage extending therethrough along an axis. The passage is operable to receive the instrument and guide the instrument through the hole within the tissue of the patient. The guide tube also includes an expansion member that is moveably coupled to the cannula member to selectively move radially between a retracted position and an expanded position relative to the axis of the cannula member. The expansion member is at least partially insertable into the hole when the expansion member is in the retracted position. The expansion member is operable to engage with a surface of the hole when the expansion member is in the expanded position.04-25-2013
20130103049Methods, Tools, and Assemblies for Implantation of Medical Leads Having Distal Tip Anchors - Medical leads include distal tip anchors that are retained by fixation mechanisms of implantation tools. The fixation mechanism may include a fixed body that has features retaining the distal tip anchor. The fixation mechanism may include a movable body that can apply tension to the distal tip anchor to force the distal tip anchor to be released from the features of the fixed body. The movable body may include an axial portion that is received by an axial hole of the fixed body to allow for axial movement of the movable body to release the distal tip anchor. The fixation mechanism may instead include an elongated flexible body that passes through the distal tip anchor and is attached to the fixed body. Tension applied to the elongated body creates a releasing motion of the distal tip anchor to free the distal tip anchor from the features of the fixed body.04-25-2013
20130103047DELIVERY SYSTEM ASSEMBLIES AND ASSOCIATED METHODS FOR IMPLANTABLE MEDICAL DEVICES - A delivery system assembly includes an outer tube, an inner member, extending within a lumen of the outer tube, and a deflectable shaft, extending within the outer tube lumen and around the inner member; the tube and inner member are longitudinally moveable with respect to the shaft, and a distal end of the inner member is located distal to the shaft within the tube lumen. A medical device can be loaded into the tube lumen, along a distal-most portion of the tube, and contained between the inner member and a distal opening of the tube lumen. Deflecting the shaft orients the distal-most portion for navigation of the assembly, and, when the distal end of the inner member is engaged within the tube lumen, distal movement of the tube, with respect to the shaft, causes similar distal movement of the inner member and the loaded medical device toward an implant site.04-25-2013
20110276055LAPAROSCOPIC TRANSPELVEO-ABDOMINAL IMPLANTATION OF MULTIPLE CHANNEL ELECTRODES TO THE ENDOPELVIC PORTIONS OF THE PUDENDUS AND SCIATIC NERVES - A method for altering operation of a nerve related to a given body condition includes the steps of: laparascopically gaining access to the endopelvic area of the abdomen through the abdominal wall; implanting a multiple channel electrode through the access on endopelvic portions of at least one nerve of the sciatic nerve, the pudendus nerve, or both; and operating the electrode to electrostimulate the at least one nerve.11-10-2011
20110224680SYSTEM AND METHOD FOR MAKING AND USING A LEAD INTRODUCER FOR AN IMPLANTABLE ELECTRICAL STIMULATION SYSTEM - A lead introducer includes a multi-piece insertion needle insertable into a splitable member. The multi-piece insertion needle includes an outer insertion needle that defines an open channel that extends along substantially entirely a length of the outer insertion needle and an inner insertion needle configured and arranged for insertion into the open channel of the outer insertion needle. The splitable member includes at least two pull-apart tabs and at least one weakened region extending along at least a portion of a length of the splitable member from between the at least two pull-apart tabs. The at least one weakened region is configured and arranged for separating when the at least two pull-apart tabs are pulled apart.09-15-2011
20090281553Devices and Methods for Treatment of Gastrointestinal Disorders - An implantation device for releasably holding implantable microstimulators can be used to guide one or more microstimulators to any site within the gastrointestinal tract for implantation. The device can further releasably hold one or more ligation clips for securing the one or more microstimulators in place within the implantation site(s) and/or for closing an incision in which a microstimulator is implanted. The device can be employed using open, laparoscopic, and endoscopic techniques.11-12-2009
20110245843Nerve Surveillance Cannulae Systems - An expandable tip cannula system, comprising: a hollow cannula shaft having a proximal end and a distal end; and an expandable tip mounted at the distal end of the hollow cannula shaft, the expandable tip comprising a plurality of generally-triangular shaped petals held together in a radially-inwardly tapered arrangement between adjacent petals, each petal comprising a nerve sensing electrode disposed therein.10-06-2011
20100298842BURR HOLE CAP AND METHODS OF USE - In one embodiment, an apparatus comprises: a base structure adapted to be inserted within the burr hole; a lead securing member for securing the lead, the lead securing member comprising a first arm structure and a second arm structure, at least one spring loaded structure adapted to exert a force to bring the first arm structure and the second arm structure together; and a positioning tool having a distal end adapted to be inserted within the lead securing member. When the positioning tool is positioned within the lead securing member, the distal end holds the first and second arm structures a sufficient distance apart to receive a lead between the first and second arm structures; wherein the positioning tool comprises a control structure at a proximal end that, when engaged, causes the distal end of the positioning tool to be released from between the first and second arm structures.11-25-2010
20120283744INSERTION TOOL FOR A SPINAL CORD STIMULATION ELECTRODE - The present invention is directed to an insertion tool for a spinal cord stimulation electrode. The insertion tool comprises a first leg and a second leg coupled to the first leg. The first and second legs are separable for placement around the electrode and resiliently return to a clamped position. Each of the first and second legs generally defines a respective longitudinal axis. Each of the first and second legs defines a blade portion offset from the respective longitudinal axis for clamping the electrode.11-08-2012
20130158564PERCUTANEOUS FLAT LEAD INTRODUCER - In general, the invention is directed to a technique for percutaneously introducing a stimulation lead into a target stimulation site via the epidural region proximate the spine of a patient. The process of introducing the stimulation lead may include the use of a hollow stimulation lead introducer, which comprises an elongated sheath and an elongated dilator. The dilator fits within the sheath and serves to widen a path through the epidural region for the introduction of a stimulation lead. At least a portion of the stimulation lead introducer has an oblong cross-section, allowing passage of stimulation leads such as paddle leads. The stimulation lead introducer may enter the epidural region proximate a spine of a patient via a guidewire. The stimulation lead introducer provides a path through the epidural region of a patient to a target stimulation site. A stimulation lead may travel through the path to reach the target stimulation site where it may provide therapy to the patient.06-20-2013
20110313427DEPLOYABLE ELECTRODE LEAD ANCHOR - One embodiment of an electrode lead comprises a lead body, at least one electrode at a distal end of the lead body, an actuatable member and at least one anchor wire. The actuatable member is positioned within a lumen of the lead body. The at least one anchor wire has a proximal end that is attached to the actuatable member. Movement of the actuatable member relative to the lead body moves the at least one anchor wire through at least one opening in the lead body.12-22-2011
20110319909TOOLS, SYSTEMS, AND METHODS FOR INSERTING AN ELECTRODE ARRAY PORTION OF A LEAD INTO A BODILY ORIFICE - Exemplary insertion tools, systems, and methods for inserting an electrode array portion of a lead into a bodily orifice are described herein. An exemplary insertion tool includes a handle assembly, a slider assembly, a retractor assembly disposed at least partially within the handle assembly, and a rocker lever. The retractor assembly may include a stiffening member configured to be inserted into the electrode array portion and a spring-loaded retractor member coupled at a proximal end of the stiffening member. The spring-loaded retractor member may be configured to move from a distal position to a proximal position to at least partially retract the stiffening member from the electrode array portion. The rocker lever may be configured to selectively retain the spring-loaded retractor member in the distal position. Corresponding tools, systems, and methods are also described.12-29-2011
20120010627ELECTRODE IMPLANTATION TOOL - Embodiments of the invention are directed to an electrode implantation tool that is designed to assist in the accurate implantation of one or more electrodes in tissue of a patient. One embodiment of the electrode implantation tool comprises a catheter guide and introducer support, and catheter guide and an introducer. The catheter guide and introducer support comprises a first alignment member, a second alignment member, and a body member that is attached to the first and second alignment members. The body member fixes the relative orientations of the first and second alignment members. The catheter guide is supported by the first alignment member and comprises an elongate body having a distal end and a channel that is aligned with a longitudinal axis. The introducer comprises a sheath (166) that is supported by the second alignment member. The sheath defines a longitudinal axis. The first and second alignment members orient the longitudinal axis of the sheath at a predetermined angle to the longitudinal axis of the catheter guide.01-12-2012
20120010626BURR HOLE CAPS AND METHODS OF USE - In one embodiment, a kit, for securing a lead or cannula within a burr hole, comprises: a base structure to be positioned immediately adjacent to or partially within the burr hole; a lead securing member for securing the lead within the burr hole, the lead securing member comprising a first arm structure and a second arm structure, at least one spring loaded structure adapted to exert a force to bring the first arm structure and the second arm structure together; and a positioning tool having a distal end adapted to be inserted within the lead securing member; wherein when the distal end of the positioning tool is positioned within the lead securing member, the distal end holds the first and second arm structures a sufficient distance apart to receive a lead or a cannula between the first and second arm structures.01-12-2012
20120029528SPINAL CORD STIMULATION SYSTEM AND METHODS OF USING SAME - A method for optimizing the stimulation of the dorsal column of the spinal cord is disclosed. The method includes providing a stimulating electrode array and a frame element. The frame element is configured to couple to the stimulating electrode array and guide the stimulating electrode array to a desired position proximate the dorsal column of the spinal cord of a subject.02-02-2012
20120035616STEERING AN IMPLANTABLE MEDICAL LEAD VIA A ROTATIONAL COUPLING TO A STYLET - An implantable medical lead has a torsional stiffness and is rotationally coupled to a stylet. Applying rotation directly to the lead in turn causes rotation of the stylet. Where the stylet has a bent tip for purposes of steering the lead, the rotation applied to the lead rotates the bent tip so that the lead can be steered by rotating the lead rather than rotating a hub of the stylet. The rotational coupling may be achieved through one or more features provided for the lead and/or the stylet, such as a feature within a lumen of the lead that mates to a feature along the stylet or a feature of the stylet hub that engages the proximal end of the lead. The torsional stiffness of the lead may be provided by adding a feature within the lead body, such as a braided metal wire or an overlapping foil.02-09-2012
20130204270INSERTION ASSEMBLY FOR AN ELECTRICAL STIMULATION SYSTEM AND RELATED METHODS OF USE - An insertion assembly for assisting implantation of at least one lead into a patient includes an insertion needle and a sheath. The sheath removably couples with the insertion needle while the insertion needle is being advanced into the patient. When the sheath is coupled to the insertion needle, the sheath is disposed over at least a portion of an outer surface of the insertion needle. The sheath is radially expandable from a non-expanded state to an expanded state that is rigid enough to retract surrounding patient tissue when inserted into the patient. When the sheath is in an expanded state, first and second diameters of the sheath at opposing ends of the sheath are each large enough to concurrently receive at least one of a paddle lead or at least two percutaneous leads.08-08-2013
20120078268ARCUATE INTRODUCER - An introducer for a medical lead, the introducer having an arcuate component for creating an arcuate path in a patient. When used to percutaneously implant a medical device such as a medical lead with electrodes, the implanted lead has an arcuate configuration. The implanted lead can be used to at least partially encircle or bracket a region of chronic pain and provide therapeutic electrical signals to the region.03-29-2012

Patent applications in class Electrode guide means