Patents Assigned to Medtronic
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Patent number: 8831749Abstract: A coiled continuous conductor wire of an implantable medical electrical lead includes a first, electrode length and a second, insulated length, wherein the insulated length of the wire has a radial cross-section defined by a round profile, while the electrode length of the wire has a radial cross-section defined by a flattened profile, a long axis edge of which defines an outer diameter surface of the electrode length. The radial cross-section profile, along the electrode length of wire, is preferably flattened after an entire length of the wire has been coiled.Type: GrantFiled: October 31, 2012Date of Patent: September 9, 2014Assignee: Medtronic, Inc.Inventors: Gregory A. Boser, Peter B. McIntyre, Kevin R. Seifert
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Patent number: 8831737Abstract: The disclosure describes a system that measures the distance between one or more electrodes and tissue of a patient, and controls one or more parameters of the stimulation delivered to the tissue by the electrodes based on the measured distance. The system controls the measurement of the distance between the electrodes and the tissue as a function of activity of the patient. The system uses, for example, a piezoelectric transducer to sense activity of the patient, and may determine whether or how frequently to measure the distance between electrodes and tissue based on the sensed physical activity. A piezoelectric transducer may be used both to sense activity and to measure the distance between the electrodes and the tissue.Type: GrantFiled: May 31, 2013Date of Patent: September 9, 2014Assignee: Medtronic, Inc.Inventor: Wilbert A. Wesselink
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Patent number: 8831721Abstract: An implantable cardioverter defibrillator evaluates the hemodynamic stability of an arrhythmia to determine whether or not to defibrillate. The device obtains cardiac pressure and cardiac impedance data and evaluates a phase relationship between these parameters. Hemodynamically stable rhythms will result in an out of phase relationship.Type: GrantFiled: April 24, 2008Date of Patent: September 9, 2014Assignee: Medtronic, Inc.Inventors: Douglas A. Hettrick, Kevin P. Vincent, Shantanu Sarkar, Yong K. Cho, Todd M. Zielinski
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Patent number: 8827982Abstract: A delivery catheter includes a pre-formed and resilient heart-wrapping segment. The segment may have a relaxed span that allows the segment to wrap around a left side of a heart from an anterior epicardial surface to a posterior epicardial surface, when the catheter is advanced along the epicardial surface, having been inserted from a sub-xiphoid access site.Type: GrantFiled: February 28, 2007Date of Patent: September 9, 2014Assignee: Medtronic, Inc.Inventors: Johnson E. Goode, Melissa Gene Tanner Christie, Stanten C. Spear, Rick D. McVenes
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Patent number: 8827904Abstract: A method and apparatus for providing status of a parameter that includes detecting an alert level of a parameter monitored by an implanted medical device, transmitting data corresponding to the detected alert level from the implanted medical device to an external monitor, scheduling a follow-up interrogation session after receiving transmitted data corresponding to the detected alert level, and retrieving updated data from the implanted medical device corresponding to the monitored parameter during the follow-up interrogation session.Type: GrantFiled: August 31, 2005Date of Patent: September 9, 2014Assignee: Medtronic, Inc.Inventors: James J. Ball, Sean B. McAdams, Chris T. House
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Patent number: 8827913Abstract: An example system may include at least one pressure sensor configured to measure a cardiovascular pressure signal and another medical device configured to measure an electrical depolarization signal of the heart. The system determines a plurality of cardiovascular pressure metrics based on the measured cardiovascular pressure signal, including at least one cardiovascular pressure metric indicative of a timing of at least one cardiac pulse. The system also determines a metric indicative of a timing of at least one heart depolarization within the measured electrical depolarization signal. The system compares the timing of the at least one cardiac pulse to the timing of the at least one depolarization, and determines whether to discard the plurality of cardiovascular pressure metrics based on whether the timings substantially agree.Type: GrantFiled: May 3, 2011Date of Patent: September 9, 2014Assignee: Medtronic, Inc.Inventors: William J. Havel, Tommy D. Bennett, Yong Kyun Cho, Robert T. Taepke, II
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Patent number: 8828074Abstract: A stent-graft includes a short tube graft and patch located inside of a primary graft. The patch forms a smooth and reliably sealed transition between the primary graft and the short tube graft. Accordingly, the disruption to fluid, e.g., blood, flowing through the lumen of the primary graft by the short tube graft is minimal. Further, the patch supports the inner end of the short tube graft. Thus, the patch, the short tube graft and the primary graft form a stable three-dimensional structure.Type: GrantFiled: April 21, 2006Date of Patent: September 9, 2014Assignee: Medtronic Vascular, Inc.Inventors: Jia Hua Xiao, Matthew Rust
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Patent number: 8831741Abstract: A catheter system for delivery of a medical implant, the system including a cap removably covering an open distal end of a catheter. An elongate actuator wire is fixedly attached to the cap, extends through a lumen of the catheter, and has a distal region that can assume a pre-formed shape when unconstrained by the catheter lumen. The pre-formed shape of the wire distal region defines a bend adapted to laterally deflect the cap from the catheter distal end when assuming the pre-formed shape. At least a portion of the lumen adjacent the catheter distal end is sized and shaped to slidably receive the medical implant alongside the actuator wire. A push rod extends through the catheter lumen for ejecting the medical implant from the catheter distal end. Methods of using the invention are also disclosed.Type: GrantFiled: March 14, 2011Date of Patent: September 9, 2014Assignee: Medtronic Vascular, Inc.Inventor: Erik Griswold
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Patent number: 8831748Abstract: A medical electrical electrode includes an elongated conductive coil located over a lead body, and a conductive polymer material in contact with the lead body and located between individual coils of the elongated conductive coil. In certain embodiments, the conductive polymer is a polymer (e.g., silicone) implanted with a conductive filler (e.g., carbon black). In certain embodiments, the conductive polymer material is generally isodiametric with an outer diameter of the individual coils of the elongated conductive coil. A medical electrical electrode is fabricated by sliding an elongated conductive coil over a length of a lead body, dispersing a conductive polymer on the helical coil, inserting a tubing over the elongated conductive coil, distributing the polymer material between individual turns of the elongated conductive coil, heating the tubing so the tubing shrinks around the elongated conductive coil, and removing the tubing.Type: GrantFiled: March 30, 2009Date of Patent: September 9, 2014Assignee: Medtronic, Inc.Inventors: Mark T. Marshall, Teresa A. Whitman, Suping Lyu, Elizabeth K. Nagy, David S. Olson
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Publication number: 20140249409Abstract: A lead includes a lead body having at least two electrodes and a lead marker. The lead marker corresponds to a size and spacing of each of the at least two electrodes. The spacing between the electrodes and lead marker corresponds to an operative length of a first lead introducer configured to be used with the lead. Lead systems that include one or more lead introducers and kits including the same are also disclosed.Type: ApplicationFiled: May 16, 2014Publication date: September 4, 2014Applicant: Medtronic, Inc.Inventor: Carole A. Tronnes
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Publication number: 20140249507Abstract: A transvascular system (10) for delivering a drug to a tissue region from a blood vessel, such as a coronary vein, includes a catheter (12) having a distal portion (26) with puncturing (14), orientation (16), drug delivery (62), and imaging elements (18). The puncturing element (14) is deployable for penetrating the vessel wall to access the tissue region. The orientation element (16), e.g. a “cage” including a plurality of struts (38) (40) and/or a radiopaque marker, has a predetermined relationship with the puncturing element (14), the imaging element (18) detecting the location of the orientation element (16) with respect to the tissue region to orient the puncturing element. The catheter (12) is percutaneously introducing into the vessel, the puncturing element (14) is oriented towards the tissue region, the puncturing element (14) is deployed to access the tissue region, and the drug is delivered to the tissue region.Type: ApplicationFiled: September 20, 2013Publication date: September 4, 2014Applicant: Medtronic Vascular, Inc.Inventors: Christopher Flaherty, Joshua Makower, Philip Evard, Patrick Macaulay, Jason Whitt, Robert Colloton
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Publication number: 20140249605Abstract: At least one of a medical device, such as an implantable medical device, and a programming device determines values for one or more metrics that indicate the quality of a patient's sleep. Sleep efficiency, sleep latency, and time spent in deeper sleep states are example sleep quality metrics for which values may be determined. In some embodiments, determined sleep quality metric values are associated with a current therapy parameter set. In some embodiments, a programming device presents sleep quality information to a user based on determined sleep quality metric values. A clinician, for example, may use the sleep quality information presented by the programming device to evaluate the effectiveness of therapy delivered to the patient by the medical device, to adjust the therapy delivered by the medical device, or to prescribe a therapy not delivered by the medical device in order to improve the quality of the patient's sleep.Type: ApplicationFiled: May 13, 2014Publication date: September 4, 2014Applicant: Medtronic, Inc.Inventors: Kenneth T. Heruth, Keith A. Miesel
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Publication number: 20140249543Abstract: A delivery system assembly includes an elongate outer tube, an elongate inner member extending within a lumen of the outer tube, and an articulation sheath surrounding the outer tube between a handle of the assembly and a distal-most portion of the outer tube. The outer tube is longitudinally moveable within the sheath; and an inner diameter of the sheath is preferably smaller than that of the handle and the distal-most portion of the outer tube. Navigation of the assembly through a venous system, for deployment of an implantable medical device, is facilitated by deflection of the sheath, to orient a distal-most portion of the outer tube, within which an entirety of the medical device is contained/loaded, and by subsequent advancement of the distal-most portion, with respect to the sheath, to move the distal end of the inner member, along with the contained/loaded device into proximity with a target implant site.Type: ApplicationFiled: May 12, 2014Publication date: September 4, 2014Applicant: Medtronic, Inc.Inventors: William A. Berthiaume, H. Allan Steingisser, Don H. Tran, Erik Griswold, Brent L. Locsin
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Publication number: 20140249600Abstract: A medical device delivers a therapy to a patient. The medical device or another device may periodically determine an activity level or gait parameter of the patient, and associate each determined level or parameter with a current therapy parameter set. A value of at least one activity metric is determined for each of a plurality of therapy parameter sets based on the activity levels or parameters associated with that therapy parameter set. Whether the patient is currently experiencing or anticipated to experience gait freeze caused by their neurological disorder, such as Parkinson's disease, may also be determined. Gait freeze events may be associated with current therapy parameters and used to determine activity metric values. In some examples, the activity metric associated with certain therapy parameters may be presented to a user.Type: ApplicationFiled: May 15, 2014Publication date: September 4, 2014Applicant: Medtronic, Inc.Inventors: Kenneth T. Heruth, Keith A. Miesel, Gregory F. Molnar
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Publication number: 20140249604Abstract: A system and method for long-term monitoring of cardiac conditions such as arrhythmias is disclosed. The invention includes a pulse generator including means for sensing an arrhythmia. The pulse generator is coupled to at least one subcutaneous electrode or electrode array for providing electrical stimulation such as cardioversion/defibrillation shocks and/or pacing pulses. The electrical stimulation may be provided between multiple subcutaneous electrodes, or between one or more such electrodes and the housing of the pulse generator. In one embodiment, the pulse generator includes one or more electrodes that are isolated from the can. These electrodes may be used to sense cardiac signals.Type: ApplicationFiled: May 12, 2014Publication date: September 4, 2014Applicants: Cardiac Pacemakers, Inc., Medtronic, Inc.Inventors: Ward M. Brown, Stephen D. Heinrich
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Patent number: 8821569Abstract: Multiple component heart valves and apparatus and methods for implanting them are provided. The heart valve generally includes a first annular prosthesis and a second valve prosthesis. The first prosthesis includes an annular member compressible from a relaxed condition to a contracted condition to facilitate delivery into a biological annulus, the annular member being resiliently expandable towards the relaxed condition. The first prosthesis also includes guide rails extending therefrom. The second prosthesis includes an annular frame, valve elements, and receptacles for receiving respective guide rails therethrough when the second prosthesis is directed towards the first prosthesis. In addition, a valve holder may releasably carry the valve prosthesis that includes channels for receiving respective guide rails therethrough when the guide rails are received through the valve prosthesis.Type: GrantFiled: April 30, 2007Date of Patent: September 2, 2014Assignee: Medtronic, Inc.Inventors: Donnell W. Gurskis, Mimi Nguyen-Fitterer, Takashi Harry Ino
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Patent number: 8821488Abstract: Device, system and method for ablating tissue of a heart of a patient. The tissue is clamped between a pair of opposing jaws. A portion of the tissue is ablated at a first generally linear position on the tissue by applying ablative energy to two of a plurality of elongate electrodes, each of the two of the plurality of elongate electrodes being coupled in opposing relationship to each other and the pair of opposing jaws, respectively. An effectiveness of the ablation is sensed at a second generally linear position on the tissue with at least one of the plurality of elongate electrodes positioned on one of the pair of opposing jaws. The second linear position on the tissue is laterally distal to the first linear position on the tissue with respect to the atrium of the heart.Type: GrantFiled: May 13, 2009Date of Patent: September 2, 2014Assignee: Medtronic, Inc.Inventors: Mark Stewart, David Francischelli, Jinback Hong, Sarah Ahlberg
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Patent number: 8823382Abstract: Techniques for monitoring a battery of an implantable medical device are disclosed. First and second current sources are provided to draw currents having amplitudes of I1 and I2, respectively, from the battery. First and second voltage measurements, V1 and V2, are obtained when first and second combinations, respectively, of the first and second current sources are selectively activated. Battery impedance is determined using the current amplitudes I1 and I2 and the voltage measurements V1 and V2. The impedance measurement may be used to obtain an open-circuit voltage of the battery without the need to disconnect the battery from circuitry to which it provides power. Battery impedance and/or open-circuit battery voltage may then be used to determine an estimated time until an action is required involving the battery, which may include activation of an ERI or EOL indicator, or initiation of a recharge session.Type: GrantFiled: April 30, 2008Date of Patent: September 2, 2014Assignee: Medtronic, Inc.Inventors: John C. Rondoni, Mukul Jain
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Patent number: D712353Type: GrantFiled: March 4, 2013Date of Patent: September 2, 2014Assignee: Medtronic Ardian Luxembourg S.a.r.l.Inventors: William R. George, Charles R. Lewis, Jr.
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Patent number: D713042Type: GrantFiled: February 21, 2013Date of Patent: September 9, 2014Assignee: Medtronic, Inc.Inventors: Martin Gerber, David Lura, Bryant Pudil, Thomas Meyer, Brian Mullins