Patents Assigned to Medtronic
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Patent number: 8774918Abstract: Electrical crosstalk between two implantable medical devices or two different therapy modules of a common implantable medical device may be evaluated, and, in some examples, mitigated. In some examples, one of the implantable medical devices or therapy modules delivers electrical stimulation to a nonmyocardial tissue site or a nonvascular cardiac tissue site, and the other implantable medical device or therapy module delivers cardiac rhythm management therapy to a heart of the patient.Type: GrantFiled: January 30, 2009Date of Patent: July 8, 2014Assignee: Medtronic, Inc.Inventors: William T. Donofrio, John E. Burnes, Paul G. Krause, Xiaohong Zhou, Gerald P. Arne, David J. Peichel, James D. Reinke
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Patent number: 8771302Abstract: Apparatus for resecting a diseased heart valve, the apparatus including: a body portion; a first handle and a second handle; a cutting blade; a set of retaining arms; a pass-off tool having a first attachment device configured to selectively engage the first handle attached to the body portion so as to allow placement of the second handle of the body portion adjacent to the diseased heart valve, and a controller tool, having a second attachment device at the distal end thereof, the second attachment device configured to selectively engage the second handle attached to the body portion so as to allow positioning of the body portion adjacent to the diseased heart valve, a cutting blade actuator configured to cause the cutting blade to selectively rotate, and a retaining arm actuator configured to selectively position the set of retaining arms from the contracted state to the expanded state.Type: GrantFiled: April 6, 2007Date of Patent: July 8, 2014Assignee: Medtronic, Inc.Inventors: Steven B. Woolfson, Richard B. Streeter, Daniel C. Taylor, William E. Cohn
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Patent number: 8771252Abstract: A method and apparatus for treatment of cardiac and renal diseases associated with the elevated sympathetic renal nerve activity by implanting a device to block the renal nerve signals to and from the kidney. The device can be a drug pump or a drug eluting implant for targeted delivery of a nerve-blocking agent to the periarterial space of the renal artery.Type: GrantFiled: May 20, 2005Date of Patent: July 8, 2014Assignee: Medtronic Ardian Luxembourg S.a.r.l.Inventors: Mark Gelfand, Howard R. Levin
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Patent number: 8771269Abstract: A radio frequency tissue ablation system with a radio frequency generator, the generator comprising a radio frequency source, at least four independently controllable radio frequency outputs, a user interface and a controller configured to delivery radio frequency energy from the radio frequency source to the radio frequency outputs in one of at least two different output configurations in response to a configuration selection made through the user.Type: GrantFiled: May 8, 2008Date of Patent: July 8, 2014Assignee: Medtronic Ablation Frontiers LLCInventors: Marshall L. Sherman, Randell L. Werneth, J. Christopher Flaherty
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Patent number: 8771222Abstract: An infusion system, which may be a closed loop infusion system or “semi-closed-loop” system, uses state variable feedback to control the rate that fluid is infused into the body of a user. The closed loop infusion system includes a sensor system, a controller, and a delivery system. The “semi-closed-loop” system further includes prompts that are displayed or sounded or otherwise provide indications to the user prior to fluid delivery. The sensor system includes a sensor for monitoring a condition of the user. The sensor produces a sensor signal, which is representative of the condition of the user. The delivery system infuses a fluid into the user at a rate dictated by the commands from the controller. The system may use three state variables, subcutaneous insulin concentration, plasma insulin concentration, and insulin effect, and corresponding gains, to calculate an additional amount of fluid to be infused as a bolus and to be removed from the basal delivery of the fluid.Type: GrantFiled: November 29, 2012Date of Patent: July 8, 2014Assignee: Medtronic Minimed, Inc.Inventors: Sami S. Kanderian, Jr., Garry M. Steil
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Patent number: 8774913Abstract: Methods and apparatus are provided for intravascularly-induced neuromodulation or denervation. Neuromodulation may be achieved via direct and/or via indirect application of energy or neuromodulatory agents to target neural matter, or to vascular structures that support the target neural matter. In some embodiments, parameters of the target neural matter, of non-target tissue, or of the apparatus may be monitored via one or more sensors for controlling the neuromodulation or denervation. Such monitoring data optionally may be utilized for feedback control of the neuromodulation or denervation.Type: GrantFiled: November 14, 2006Date of Patent: July 8, 2014Assignee: Medtronic Ardian Luxembourg S.a.r.l.Inventors: Denise Demarais, Hanson Gifford, III, Mark Deem, Douglas Sutton, Erik Thai, Benjamin J. Clark, Nicolas Zadno
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Patent number: 8771344Abstract: A device for percutaneously repairing a heart valve of a patient including a self-expanding, stented prosthetic heart valve and a delivery system. The delivery system includes delivery sheath slidably receiving an inner shaft forming a coupling structure. A capsule of the delivery sheath includes a distal segment and a proximal segment. An outer diameter of the distal segment is greater than that of the proximal segment. An area moment of inertia of the distal segment can be greater than an area moment of inertia of the proximal segment. Regardless, an axial length of the distal segment is less than the axial length of the prosthesis. In a loaded state, the prosthesis engages the coupling structure and is compressively retained within the capsule. The capsule is unlikely to kink when traversing the patient's vasculature, such as when tracking around the aortic arch, promoting recapturing of the prosthesis.Type: GrantFiled: August 15, 2013Date of Patent: July 8, 2014Assignee: Medtronic, Inc.Inventors: Don Tran, Nathan Wiemeyer, Susheel Deshmukh, Leonel Mendoza, Matthew Rust
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Patent number: 8771345Abstract: A prosthesis including a distal fixation member that defines two or more engagement arms that are configured to apply a first axial force to tissue of the subject on a downstream side of the native valve complex. The prosthesis also includes a proximal fixation member configured to apply a second axial force to tissue of the subject on an upstream side of the native valve complex such that application of the first and second axial forces couples the prosthesis to the native valve complex. The proximal fixation member and the distal fixation member are fabricated as one integrated structure. The engagement arms and the proximal fixation member are configured to capture leaflets of the native valve complex therebetween without folding over of leaflets of the native valve complex, upon implantation of the prosthesis.Type: GrantFiled: October 31, 2011Date of Patent: July 8, 2014Assignee: Medtronic Ventor Technologies Ltd.Inventors: Yosi Tuval, Ido Kilemnik, Raphael Benary
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Publication number: 20140188105Abstract: A bipolar electrosurgical device is disclosed. The bipolar electrosurgical device includes a handle having a shaft and a distal end. The handle can be coupled to a source of electrical energy and a fluid source. A U-shaped first electrode extends distally in a plane from a pair of openings on the distal end of the shaft. The first electrode is in electrical communication with one of an active pole or a return pole of the source of electrical energy. A longitudinal second electrode extends distally from a middle opening on the distal end of the shaft. The second electrode is coplanar to the first electrode and electrically isolated from the first electrode. The second electrode is in electrical communication with the other of the active pole or the return pole of the source of electrical energy. The second electrode forms a lumen configured to be in fluid communication with the fluid source and a fluid opening for dispersing fluid.Type: ApplicationFiled: March 5, 2014Publication date: July 3, 2014Applicant: Medtronic Advanced Energy LLCInventors: Brian M. Conley, Jonathan J. Barry, Roger D. Greeley, Chad M. Greenlaw, Lorenzo C. Vaccarella, Joseph Sylvester
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Publication number: 20140188149Abstract: Catheter devices having low profile shafts and laterally deployable members (e.g., cannulas, needles, etc.) that may be extended or advanced laterally from the catheter shaft. Also disclosed are methods for bypassing a vascular obstruction (e.g., a chronic total occlusion or other full or partial obstruction) wherein a guidewire is entrapped in a subintimal space adjacent to the obstruction. A catheter of the foregoing character is advanced over the entrapped guidewire and into the subintimal space. The laterally deployable member is then advanced or extended from the subintimal space back into the true lumen of the blood vessel distal to the obstruction. A second guidewire is then advanced through or along the laterally deployable member. The catheter and first guidewire are then removed and one or more working device(s) (balloons, atherectomy devices, stents, etc.) is/are advanced over the second guidewire and used to establish a subintimal bypass channel through which blood may flow around the obstruction.Type: ApplicationFiled: December 20, 2013Publication date: July 3, 2014Applicant: Medtronic Vascular, Inc.Inventor: Kaushik PATEL
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Publication number: 20140188220Abstract: An implantable prosthetic valve assembly includes a radially expandable frame including an inflow portion and a second portion. The inflow portion is configured, in an expanded state, to bear against a native cardiac annulus in a manner so as to resist migration. The second portion extends from the inflow zone in an outflow direction, and is configured, in an expanded state, not to bear against the native cardiac annulus and an ascending aorta. The valve assembly also includes a prosthetic valve coupled to the frame substantially within the second portion.Type: ApplicationFiled: December 23, 2013Publication date: July 3, 2014Applicant: Medtronic CoreValve LLCInventor: Jacques SEGUIN
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Patent number: 8764811Abstract: An apparatus and method of deploying a stent graft having a proximal anchor stent ring includes restraining proximal apexes of the proximal anchor stent ring between a spindle body of a spindle and a control release sleeve of a tapered tip. The control release sleeve is advanced relative to the spindle to release a first proximal apex through an opening in the control release sleeve while the remaining proximal apexes remain restrained by the control release sleeve. The control release sleeve is further advanced relative to the spindle to release the remaining proximal apexes from the control release sleeve. In another example, a stent capture fitting has variable length stent capture fitting arms. As the stent capture fitting is retracted, the proximal apexes of the proximal anchor stent ring are sequentially exposed from and released by the variable length stent capture fitting arms.Type: GrantFiled: April 20, 2010Date of Patent: July 1, 2014Assignee: Medtronic Vascular, Inc.Inventors: Susan Rea Peterson, Brian Glynn
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Patent number: 8764674Abstract: A medical device system and method that includes receiving an A2 heart sound signal from a first external acoustic sensor, receiving a P2 heart sound signal from a second external acoustic sensor, determining at least one A2 heart sound signal parameter from the A2 heart sound signal, determining at least one P2 heart sound signal parameter from the P2 heart sound signal, and based on the at least one P2 heart sound signal parameter, estimating pulmonary arterial pressure.Type: GrantFiled: March 6, 2013Date of Patent: July 1, 2014Assignee: Medtronic, Inc.Inventors: Zhendong Song, Xiaohong Zhou
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Patent number: 8764723Abstract: Various embodiments of the present invention are directed to equalizing pressure in a reservoir containing fluidic media, possibly due to imperfect installation of the reservoir or an external influence such as an altitude or a temperature change. In various embodiments, fluidic media may be expelled from the reservoir through a needle and contained in an interior volume of a pierceable member before the needle pierces the pierceable member to establish a flow path to a user. In other embodiments, fluidic media may be expelled through a port of the reservoir into a chamber. In further embodiments, fluidic media may be expelled through a channel in a plunger head and out a passage in the reservoir when the channel and passage are aligned. In other embodiments, fluidic media may be expelled through a valve, and the valve may be pierceable by a needle to establish a flow path to the user.Type: GrantFiled: January 3, 2013Date of Patent: July 1, 2014Assignee: Medtronic MiniMed, Inc.Inventors: Colin A. Chong, Julian D. Kavazov, Eric M. Lorenzen
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Patent number: 8768019Abstract: The present disclosure relates to acquiring image data of a subject and selecting image data to be displayed. The image data can include a plurality of frames that relate to a specific location of a tracking device positioned within the subject. The determined location of the tracking device can be used to determine which frame of the image data to display at a selected time.Type: GrantFiled: February 3, 2011Date of Patent: July 1, 2014Assignee: Medtronic, Inc.Inventor: Michael R. Neidert
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Patent number: 8763758Abstract: A cartridge includes a body, a reservoir, a filter, and a tab. The body is configured to be held in a fixed relationship relative to a stem, wherein the body comprises an inlet and an outlet. The inlet is configured to receive a fluid from a surgical instrument via the stem. The outlet is configured to output a first portion of the fluid from the cartridge. The reservoir is configured to receive the fluid from the inlet. The filter is configured to filter the first portion of the fluid as the first portion of the fluid is directed from the inlet, through the filter, and to the outlet. The tab connected to the body and configured to engage with the stem. The tab is configured to, when the cartridge is moved to disengage from the stem, at least one of break away from the body and become functionally inoperable.Type: GrantFiled: June 10, 2013Date of Patent: July 1, 2014Assignee: Medtronic Xomed, Inc.Inventors: S. Shane Dexter, Larry D. Estes, Gabriel A. Johnston, Durrell G. Tidwell, Bret Hauser, Lauren Devita
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Patent number: 8768470Abstract: Methods and apparatus are provided for renal neuromodulation using a pulsed electric field to effectuate electroporation or electrofusion. It is expected that renal neuromodulation (e.g., denervation) may, among other things, reduce expansion of an acute myocardial infarction, reduce or prevent the onset of morphological changes that are affiliated with congestive heart failure, and/or be efficacious in the treatment of end stage renal disease. Embodiments of the present invention are configured for percutaneous intravascular delivery of pulsed electric fields to achieve such neuromodulation.Type: GrantFiled: May 11, 2010Date of Patent: July 1, 2014Assignee: Medtronic Ardian Luxembourg S.a.r.l.Inventors: Mark Deem, Hanson Gifford, III, Denise Demarais, Douglas Sutton, Erik Thai, Mark Gelfand, Howard R. Levin
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Patent number: 8768486Abstract: A medical device having a frequency independent circuit that substantially reduces induced currents in a lead assembly and at a tissue interface. The frequency independent circuit configures an electrical path such that a stimulation pulse travels from the medical device to a selected tissue, and a current induced by an external changing electromagnetic signal is prevented from travelling the electrical path from the selected tissue to the medical device.Type: GrantFiled: December 10, 2007Date of Patent: July 1, 2014Assignee: Medtronic, Inc.Inventors: Robert W. Gray, Stuart G. MacDonald, Lon E. Smith, Jr.
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Patent number: 8768465Abstract: Generally, the disclosure is directed one or more methods or systems of cardiac pacing employing a right ventricular electrode and a plurality of left ventricular electrodes. Pacing using the right ventricular electrode and a first one of the left ventricular electrodes and measuring activation times at other ones of the left ventricular electrodes. Pacing using the right ventricular electrode and a second one of the ventricular electrodes and measuring activation times at other ones of the left ventricular electrodes. Employing sums of the measured activation times to select one of the left ventricular electrodes for delivery of subsequent pacing pulses.Type: GrantFiled: May 4, 2012Date of Patent: July 1, 2014Assignee: Medtronic, Inc.Inventors: Subham Ghosh, Robert W. Stadler
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Patent number: D708810Type: GrantFiled: March 4, 2013Date of Patent: July 8, 2014Assignee: Medtronic Ardian Luxembourg S.a.r.l.Inventor: Charles R. Lewis, Jr.