Patents Assigned to Medtronic
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Patent number: 9299962Abstract: An encasement for an electrochemical cell and method of making such encasement is discloses. The design of the encasement results in an encasement having an area of high stress located away from the weld zone area of the encasement, where the cover and the case are welded together.Type: GrantFiled: March 14, 2013Date of Patent: March 29, 2016Assignee: Medtronic, Inc.Inventors: Hailiang Zhao, Steven J. May, Markus W. Reiterer, Bernard F. Heller
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Patent number: 9295850Abstract: In some examples, a device for delivering electrical stimulation to a medical patient includes an electrical stimulation generator, a coupling circuit, and a processing module. The electrical stimulation generator is configured to generate electrical stimulation. The coupling circuit includes a first node connected to the electrical stimulation generator, a second node configured to deliver the electrical stimulation to the patient, and a capacitor. The coupling circuit is configured to operate in a first state to couple the capacitor between the first and second nodes in a first orientation and operate in a second state to couple the capacitor between the first and second nodes in a second orientation that is opposite to the first orientation. The processing module is configured to set the state of the coupling circuit to one of the first and second states.Type: GrantFiled: March 14, 2013Date of Patent: March 29, 2016Assignee: Medtronic, Inc.Inventor: Todd A. Kallmyer
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Patent number: 9295550Abstract: Methods for delivering a prosthetic heart valve include advancing a delivery catheter containing the prosthetic heart valve to a deployment native heart valve, advancing an inner core movably coupled to a restraining sheath of the delivery catheter to expose a first end of the prosthetic heart valve, and advancing the inner core and the restraining to expose a second end of the prosthetic heart valve. The delivery catheter can include a distal flange located at a distal end of an outer core of the catheter body, configured to restrict distal longitudinal displacement of the prosthetic heart valve, and a retaining structure located proximally from the distal flange along the outer core of the catheter body, configured to restrict proximal longitudinal displacement of the prosthetic heart valve.Type: GrantFiled: March 28, 2014Date of Patent: March 29, 2016Assignee: Medtronic CV Luxembourg S.a.r.l.Inventors: Than Nguyen, Jacques Seguin, Stan Komatsu, Hung Nguyen, Georg Boertlein
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Patent number: 9295826Abstract: Implantable physiological shunt systems and related fluid flow control devices and accessories for use therewith. Devices, systems and methods relating to implantable medical fluid flow control devices, rotors and magnets with increased resistance to inadvertent setting changes. Devices, systems and methods relating implantable medical fluid flow control devices, rotors and magnets which provide improved magnetic coupling to fluid flow control device accessories such as adjustment tools.Type: GrantFiled: March 14, 2013Date of Patent: March 29, 2016Assignee: Medtronic Xomed, Inc.Inventors: W. Jeff Bertrand, Lori Speckman, Manfred Karl Luedi, Chun Man Alan Leung, Lawrence Hampton, Deep Shah
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Patent number: 9296034Abstract: An apparatus for forming a wave form for a stent from a wire includes a pair of tension wires configured to rotate about an axis. The tension wires and axis are substantially orthogonal to the stent wire disposed in a gap between the tension wires. When the tension wires are rotated, a bend is formed in the portion of the stent wire disposed between the tension wires. The tension wires may be controlled such that the axis of rotation is aligned with the particular tension wire around which the stent wire is to be bent for each particular bend formed in the stent wire, thereby preventing the particular tension wire from translating during rotation such that the tension wire behaves like a rotary pipe bending die around which the stent wire is bent. A feed assembly feeds the stent wire into the forming area between the tension wires.Type: GrantFiled: July 26, 2011Date of Patent: March 29, 2016Assignee: Medtronic Vascular, Inc.Inventors: Michael Costa, Lance Ensign, Dustin Thompson, Paul Coates, Rui Lam, Larry Childs, Justin Eckhardt, Jerry Warmerdam, Charlie Dawson, Bob Boldig
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Patent number: 9299971Abstract: A system for the automated coiling of a jelly roll electrode assembly for controlled assembly and tensioning of jelly roll assembly is provided. The system includes: a shuttle, and a mandrel to which electrodes are welded; a base, mateable with the shuttle and on which the battery head assembly is mounted for welding to the mandrel; and a coiling device. The coiling device has an upper spool, a lower spool, holding a separator strip and a platform between the two holding the base. The separator strip is threaded through a passage in the mandrel separating positive and negative portions. Rotating the mandrel coils the positive electrode, the separator strip and the negative electrode to coil around the mandrel. The coiling device may include a feedback loop braking one or both spools and allowing the coiling tension to be programmed to a desired level.Type: GrantFiled: September 12, 2011Date of Patent: March 29, 2016Assignee: Medtronic, Inc.Inventors: Joseph J. Viavattine, Paul B. Aamodt, Sandeep Saurkar, Dona M. Suardini, Brent J. Torgerson
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Patent number: 9295851Abstract: A device for generating a plurality of output voltages from a single input energy supply source is described. The device includes a switched capacitor voltage converter that provides each of the output voltages having different supply ratios. The supply ratio is defined as a function of the input voltage provided to the switched capacitor voltage converter by the energy supply source. The switched capacitor voltage converter includes a plurality of capacitors selectively coupled to a plurality of switches that dynamically configure the capacitors into a plurality of stacked configurations. Switching between the plurality of stacked configurations may be controlled based on predetermined criteria.Type: GrantFiled: April 6, 2015Date of Patent: March 29, 2016Assignee: Medtronic, Inc.Inventors: Charles R Gordon, Shohan T Hossain, Weizheng Liang, James D Reinke, Gregg T Sarkinen
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Patent number: 9295548Abstract: A heart valve assembly includes an annular prosthesis and a plurality of guide shields removably attached around a circumference of the annular prosthesis. A plurality of elongate guide rails extend from the annular prosthesis, which are releasably retained by the guide shields. During use, the annular prosthesis is directed into a biological annulus, e.g., with the guide rails retained by the guide shields, and secured to tissue surrounding the biological annulus using fasteners. The guide rails are released from the guide shields, and a valve prosthesis is advanced over the leaders and through a passage defined by the guide shields towards the annular prosthesis. The guide rails may include retentions elements that secure the valve prosthesis to the annular prosthesis. The guide shields are removed from the annular prosthesis, the guide rails are separated from the annular prosthesis, and are removed from the biological annulus.Type: GrantFiled: April 30, 2007Date of Patent: March 29, 2016Assignee: Medtronic, Inc.Inventors: Michael J. Drews, Donnell W. Gurskis, Mimi Nguyen Fitterer, Takashi Harry Ino, James Hong
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Patent number: 9295776Abstract: A casing may be configured to envelop at least a portion of a plunger arm attached to a plunger head located in a reservoir. A plunger head moveable in a reservoir may have a front portion comprising a first material compatible with fluidic media in an interior volume of the reservoir. A seal member having a first end and a second end that taper to a mid-portion may be positioned between a reservoir and a plunger head. A bias member may be configured to force a plunger arm operatively connected to a plunger head against a drive member to operatively engage the plunger arm to the drive member. A plunger head moveable in a reservoir may have a first ridge, a second ridge, a seal member adjacent at least one of the ridges, and protrusions arranged around at least one of the ridges.Type: GrantFiled: April 3, 2009Date of Patent: March 29, 2016Assignee: Medtronic MiniMed, Inc.Inventors: Colin A. Chong, Eric M. Lorenzen, Rafael Bikovsky, Arsen Ibranyan
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Patent number: 9289270Abstract: A system can be used to navigate or guide an instrument or device into an anatomy of a patient. The navigation can occur with the use of image data acquired of the patient. The image data can be registered to the patient space for navigation. One or more tracking devices can be the associated with the patient and with guiding instruments for tracking guiding devices relative to the patient.Type: GrantFiled: November 25, 2009Date of Patent: March 22, 2016Assignee: Medtronic, Inc.Inventors: Frans L. H. Gielen, Peter Appenrodt, Andrew N. Csavoy, Jeffrey M. Waynik, Mark S. Freas, Matthew S. Solar
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Patent number: 9289145Abstract: Techniques for identifying abnormal cardiac substrate, e.g., scar substrate, may be implemented, as an example, during implantation of a left-ventricular (LV) lead, e.g., for cardiac resynchronization therapy (CRT), which may enable placement of the LV lead to avoid the abnormal cardiac substrate. An example system for identifying abnormal cardiac substrate comprises at least one implantable LV lead comprising at least one bipolar electrode pair configured to sense a LV bipolar cardiac electrogram signal of LV tissue proximate the bipolar electrode pair. The system delivers cardiac pacing pulses to a left ventricle via at least one electrodes of the LV lead, which may be different then the electrodes of the bipolar pair, and which may be spaced at least a threshold distance from the bipolar pair of electrodes. The amplitude of paced depolarizations in the bipolar electrogram indicates whether tissue proximate the bipolar electrode pair comprises abnormal cardiac substrate.Type: GrantFiled: December 5, 2013Date of Patent: March 22, 2016Assignees: Medtronic, Inc., The United States of America as Represented by the Department of Veterans AffairsInventors: Nathan A. Grenz, Brett Atwater, John F. Beshai
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Patent number: 9289613Abstract: An electrical parameter value indicative of an impedance of an electrical path between a first medical device implanted within a patient and a second medical device implanted within the patient may be determined by generating and delivering an electrical signal between electrodes connected to the first medical device and sensing the electrical signal with two or more sense electrodes connected to the second medical device. In some examples, the electrical parameter value indicative of the impedance may be used to detect a system integrity issue, such as relative movement between the first and second medical devices, such as between leads connected to the medical devices, or a lead-related condition. In other examples, the determined impedance may indicate a transthoracic impedance of the patient.Type: GrantFiled: January 30, 2009Date of Patent: March 22, 2016Assignee: Medtronic, Inc.Inventors: John E. Burnes, Paul G. Krause
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Patent number: 9289255Abstract: 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: March 3, 2015Date of Patent: March 22, 2016Assignee: Medtronic Ardian Luxembourg S.a.r.l.Inventors: Mark E. Deem, Hanson Gifford, III, Denise Zarins, Douglas Sutton, Erik Thai, Mark Gelfand, Howard R. Levin
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Patent number: 9289612Abstract: An implantable medical system is configured to coordinate ventricular pacing with intrinsic depolarizations of another chamber. The implantable medical system includes a leadless pacing device implanted on or within the ventricle. Another implantable medical device is configured to sense an intrinsic depolarization the other chamber of the heart of the patient, and in response to the intrinsic depolarization of the other chamber, deliver an electrical pulse. The leadless pacing device is configured to detect the electrical pulse delivered by the other implantable medical device and, in response to detecting the electrical pulse delivered by the other implantable medical device, deliver a pacing pulse to the ventricle via at least a first electrode in coordination with the intrinsic depolarization of the other chamber.Type: GrantFiled: December 11, 2014Date of Patent: March 22, 2016Assignee: Medtronic Inc.Inventors: Aleksandre T Sambelashvili, Yong K Cho, Todd J Sheldon
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Patent number: 9289165Abstract: In general, the invention is directed to methods and devices for determining an ion concentration in the extracellular fluid of a patient. As examples, the ion may be one or more of potassium, sodium, chloride, or calcium. A system includes an electrode deployed in or near a tissue, such as a skeletal muscle, of the patient. A pulse generator supplies one or more stimulations to the tissue, and a sensor, such as an accelerometer, detects the response of the tissue to the stimulations. A processor determines a concentration of ions in the extracellular fluid as a function of the response. The system may detect an ion imbalance based upon the determined concentration of ions.Type: GrantFiled: October 15, 2014Date of Patent: March 22, 2016Assignee: Medtronic, Inc.Inventors: Orhan Soykan, Timothy H. Robinson, James K. Carney, Tara L. Nahey, Cygni Chan
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Patent number: 9289611Abstract: The disclosure includes an electrochemical cell comprising a first cathode and a second cathodes are adjacent one another in a stacked arrangement to form a cathode stack in the electrochemical cell. The first cathode includes a first current collector and a first cathode form of active material covering the first current collector, and the second cathode includes a second current collector and a second cathode form of active material covering the second current collector. The second current collector is in electrical contact with the first current collector. The electrochemical cell further comprises an anode adjacent to the cathode stack, and a separator located between the cathode stack and the anode.Type: GrantFiled: November 12, 2012Date of Patent: March 22, 2016Assignee: Medtronic, Inc.Inventor: Joseph J. Viavattine
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Patent number: 9289541Abstract: A surgical fluid manager includes a pump releasably engageable to tubing and a user interface. The user interface is configured to enable finger-touch selection of a fluid flow rate through the tubing and configured to operate in at least one of a first mode or a second mode. In the first mode, the flow rate is controlled via direct selection of one of a plurality of selectable digital numeric values, while in the second mode the flow rate is controlled via user selection of one alphanumeric identifier within a scale of alphanumeric identifiers. Each respective alphanumeric identifier directly corresponds to just one instrument size within a scale of instrument sizes.Type: GrantFiled: August 22, 2008Date of Patent: March 22, 2016Assignee: Medtronic, Inc.Inventors: Gerould W. Norman, Charles F. Scott Carpenter, Michael L. Koltz, Jr., Stephen R. Viviano
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Patent number: 9289168Abstract: The subject matter disclosed herein relates to systems, methods and/or devices for calibrating sensor data to be used in estimating a blood glucose concentration. A relationship between sensor measurements and reference readings may be used to estimate a relationship between sensor measurements and blood glucose concentration. Such sensor measurements may be weighted according to a decreasing function of uncertainty associated with sensor values.Type: GrantFiled: December 29, 2008Date of Patent: March 22, 2016Assignee: Medtronic Minimed, Inc.Inventors: Desmond Barry Keenan, John J. Mastrototaro
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Patent number: 9283318Abstract: A sealing assembly for a fluid infusion device includes a base plate, a reservoir port receptacle, a flow base component, and a needle sealing element. The receptacle receives the reservoir port, and has proximal and distal ends, and a needle entry in the distal end to receive a hollow needle of a fluid reservoir. The flow base component has an inlet structure defining a fluid chamber, and a needle guide pin protruding therefrom. The end of the guide pin fits within the hollow needle. The needle sealing element has a proximal flange adjacent to the inlet structure, a distal flange opposite the proximal flange, a neck section between the flanges, and a needle opening extending through the neck section. The needle sealing element is positioned within the port receptacle such that the neck section surrounds the end section of the needle guide pin.Type: GrantFiled: December 27, 2012Date of Patent: March 15, 2016Assignee: Medtronic MiniMed, Inc.Inventors: Matthew William Yavorsky, Edgardo C. Halili, Eric M. Lorenzen
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Patent number: 9282907Abstract: A medical device system performs a method determining presence of scar tissue. Torso-surface potential signals are received by a processor from multiple electrodes distributed on a torso of a patient. The processor extracts features of the potential signal from each electrode and stores values of the features in a non-transitory storage medium. The processor determines a scar indicator index for each of the electrodes from the stored features and identifies which ones of the electrodes have an affirmative scar indicator index. An overall scar burden index is determined as a proportion of the electrodes with an affirmative scar indicator index.Type: GrantFiled: July 23, 2013Date of Patent: March 15, 2016Assignee: Medtronic, Inc.Inventor: Subham Ghosh