Patents Assigned to Medtronic
-
Publication number: 20150070022Abstract: A method of generating at least one recommended replacement time signal for a battery is provided. The method includes measuring a plurality of associated unloaded and loaded battery voltages. A delta voltage for each associated unloaded and loaded battery voltage is then determined. A select number of delta voltages are averaged. A minimum delta voltage is determined from a plurality of the averaged delta voltages. At least one recommended replacement time signal for the battery is generated with the use of the minimum delta voltage when at least one averaged delta voltage is detected that has at least reached a replacement threshold.Type: ApplicationFiled: April 4, 2014Publication date: March 12, 2015Applicant: Medtronic, Inc.Inventors: Charles R. Gordon, James D. Reinke, Val D. Eisele
-
Publication number: 20150073515Abstract: Catheter apparatuses, systems, and methods for achieving neuromodulation by intravascular access are disclosed herein. One aspect of the present technology, for example, is directed to a treatment device having a therapeutic assembly that includes an elongated tubular shaft having a pre-formed spiral shape when in a deployed state (e.g., a radially expanded, generally spiral/helical shape) and a thermocouple assembly helically wrapped about the shaft. In one embodiment, the thermocouple assembly comprises first and second wires composed of dissimilar metals with the first wire including a plurality of exposed and insulated regions along the distal portion of the treatment device. The exposed regions of the first wire define a plurality of energy delivery portions positioned to deliver electrical energy (e.g., RF energy, pulsed energy, etc.) to target tissue adjacent a wall of an artery (e.g., a renal artery) to heat or otherwise electrically modulate neural fibers that contribute to physiological function (e.Type: ApplicationFiled: September 9, 2013Publication date: March 12, 2015Applicant: Medtronic Ardian Luxembourg S.a.r.I.Inventors: Roman Turovskiy, Maria Veronica Larios
-
Publication number: 20150073507Abstract: The present invention provides an implantable medical device having at least two electrodes coupled to the device housing. The electrodes may be configured for sensing physiological signals such as cardiac signals and alternatively for providing an electrical stimulation therapy such as a pacing or defibrillation therapy. In accordance with aspects of the disclosure, the device housing provides a hermetic enclosure that includes a first housing section that is hermetically coupled to a second housing section. At least one of the at least two electrodes is coupled to an exterior surface of the first housing section that encloses the battery components of the device. The first housing section is electrically insulated from the cathode and anode of the battery.Type: ApplicationFiled: October 23, 2013Publication date: March 12, 2015Applicant: Medtronic, Inc.Inventors: James D. Reinke, Charles R. Gordon, Kevin P. Kuehn, Michael B. Terry
-
Publication number: 20150073228Abstract: A medical device and associated method convert an analog signal using an adaptable bit number. The medical device includes an analog-to-digital (A/D) converter for receiving an analog signal. The A/D converter has a full scale range and a total number of bits spanning the full scale range. The A/D converter converts the analog signal to a digital signal over conversion cycles using an adaptable bit number so that on at least a portion of the conversion cycles an adapted number of bits spanning a portion of the full scale range less than the total number of bits is used by the A/D converter to convert the analog signal.Type: ApplicationFiled: February 18, 2014Publication date: March 12, 2015Applicant: Medtronic, Inc.Inventors: Xiaonan Shen, Jonathan P. Roberts
-
Publication number: 20150073295Abstract: A medical device and associated method acquire a biopotential signal from a pair of electrodes at a first sampling rate and a bioimpedance signal from the pair of electrodes at a second sampling rate. An onset and/or offset of the drive signal delivered to the pair of electrodes for acquiring the bioimpedance signal is synchronized to the first sampling rate.Type: ApplicationFiled: March 19, 2014Publication date: March 12, 2015Applicant: Medtronic, Inc.Inventors: Charles R. Gordon, Gregg T. Sarkinen, Michael B. Terry
-
Patent number: 8974436Abstract: A malleable cannula having multiple lumens, constrained at the proximal end portion to provide rigidity and malleable at the distal end portion. The cannula has a combination of flexibility and stiffness that assists in accessing body passageways without kinking.Type: GrantFiled: October 28, 2011Date of Patent: March 10, 2015Assignee: Medtronic Xomed, Inc.Inventors: Ethan G. Sherman, David J. Little, Wei Chen, John R. Prisco, Matthew J. Friend, Matthew F. Myntti, Tom Zelmer, Cyan Godfrey, Roy Attride
-
Patent number: 8974524Abstract: A percutaneous stented valve delivery device including an inner shaft, a sheath, and a delivery capsule. The sheath slidably receives the inner shaft. A capsule proximal zone is attached to the sheath. A capsule distal zone is configured to transition between normal and flared states. A diameter of the distal zone is greater in the flared state, and the capsule includes a shape memory component that naturally assumes the normal state. The device is operable to perform a reversible partial deployment procedure in which a portion of the prosthesis is exposed distal the capsule and allowed to radially expand. Subsequently, with distal advancement of the capsule, the distal zone transitions to the flared state and imparts a collapsing force onto the prosthesis, causing the prosthesis to radially collapse and become recaptured within the delivery capsule. The capsule can include a laser cut tube encapsulated by a polymer.Type: GrantFiled: October 17, 2013Date of Patent: March 10, 2015Assignee: Medtronic, Inc.Inventors: Hubert Yeung, John Shanahan, Joshua Dwork, Adam Shipley, Jeffrey Allen, Susheel Deshmukh, Kishore Udipi, Ya Guo
-
Patent number: 8977350Abstract: A medical device performs a method to classify a cardiac rhythm. Differences between cycle lengths in a first heart chamber are determined during an established time interval. Evidence of ectopy associated with irregular coupling intervals is detected from the signal during the established time interval. A rhythm classification output corresponding to a second heart chamber at the expiration of the established time interval is provided in response to the consecutive cycle length differences and the evidence of ectopy associated with irregular coupling intervals.Type: GrantFiled: March 17, 2011Date of Patent: March 10, 2015Assignee: Medtronic, Inc.Inventors: Shantanu Sarkar, Eduardo N. Warman
-
Patent number: 8974475Abstract: A delivery system for percutaneously guiding a repair or replacement device into a desired position relative to a valve within a patient. The delivery system includes a longitudinal support tube having a distal end, a deformable centering loop extending from the distal end of the support tube, at least one stop positioned on the centering loop and spaced from the distal end of the support tube, at least one clip delivery system slideably attached to the centering loop, and a sheath that is longitudinally slideable relative to the support tube, the centering loop, and the at least one clip delivery tube.Type: GrantFiled: April 30, 2010Date of Patent: March 10, 2015Assignee: Medtronic, Inc.Inventors: Paul T. Rothstein, Jason Quill
-
Patent number: 8974518Abstract: A method of deploying an eversible branch stent-graft includes deploying the eversible branch stent-graft into a main vessel such that a collateral opening in a main stent-graft of the eversible branch stent-graft is aligned with an ostium of a branch vessel emanating from the main vessel. A branch stent ring suture threaded though outer exposed crowns of an outer stent ring of the branch stent-graft is grasped and pulled through the collateral opening to evert the branch stent-graft into the branch vessel as a branch anchor suture is removed to release a protruding end of a branch stent-graft from a proximal end of the main stent-graft.Type: GrantFiled: March 25, 2008Date of Patent: March 10, 2015Assignee: Medtronic Vascular, Inc.Inventors: Walter Bruszewski, Masoumeh Mafi, Shyam Nagasrinivasa, Maria D. Acosta De Acevedo
-
Publication number: 20150065872Abstract: A catheter has a shaft that defines a delivery lumen, for example, to deliver an elongate medical device therethrough; a proximal section of the catheter includes a seal zone portion, a handle portion and a proximal port portion. A relatively thin wall section of the proximal port portion extends between the seal zone portion and a proximal edge that defines part of a perimeter of a proximal opening of the delivery lumen. The handle portion projects laterally from the seal zone portion, generally opposite the relatively thin wall section. An inflation subassembly of the catheter includes a compliant sleeve member and an inflation lumen extending from the sleeve member, proximally along the shaft, and into a connector port formed in the handle portion. The inflation lumen may be formed by fusing a section of a tube to the shaft and molding the handle portion around another section of the tube.Type: ApplicationFiled: August 30, 2013Publication date: March 5, 2015Applicant: Medtronic, Inc.Inventors: Ronald A. Drake, Mark W. Shepler, Lester O. Stener, Kelly M. Wien, Kendra Yasger
-
Publication number: 20150066118Abstract: Assemblies, systems, and methods for intravascular neuromodulation include a method of positioning a treatment device and a track element at a treatment site in an artery of a human patient and transforming the track element from a delivery configuration to a deployed configuration to form a spiral-shaped track tending to be in apposition with an inner wall of the artery. The treatment device has a distally-located neuromodulation element for sliding along the spiral-shaped track. The method can also include delivering energy via the neuromodulation element across the inner wall of a renal artery to heat or otherwise electrically modulate neural fibers that contribute to renal function.Type: ApplicationFiled: September 30, 2013Publication date: March 5, 2015Applicant: Medtronic Ardian Luxembourg S.a.r.l.Inventor: Barry O'Connell
-
Patent number: 8972228Abstract: Techniques for evaluating cardiac electrical dyssynchrony are described. In some examples, an activation time is determined for each of a plurality of torso-surface potential signals. The dispersion or sequence of these activation times may be analyzed or presented to provide variety of indications of the electrical dyssynchrony of the heart of the patient. In some examples, the locations of the electrodes of the set of electrodes, and thus the locations at which the torso-surface potential signals were sensed, may be projected on the surface of a model torso that includes a model heart. The inverse problem of electrocardiography may be solved to determine electrical activation times for regions of the model heart based on the torso-surface potential signals sensed from the patient.Type: GrantFiled: May 2, 2012Date of Patent: March 3, 2015Assignee: Medtronic, Inc.Inventors: Subham Ghosh, Jeffrey M. Gillberg, Robert W. Stadler
-
Patent number: 8970388Abstract: A portable electronic device, such as a fluid infusion device, obtains its operating power from a primary battery and a secondary battery. The primary battery may be a replaceable battery, and the secondary battery may be a rechargeable battery that can be charged with the primary battery under certain conditions. The device utilizes a power management scheme that transitions between the primary battery and/or the secondary battery to prolong the useful life of the primary battery. The device may also generate an intelligent battery life indicator that displays an accurate representation of the remaining life of the primary battery.Type: GrantFiled: September 20, 2013Date of Patent: March 3, 2015Assignee: Medtronic MiniMed, Inc.Inventors: Adam Trock, Jon Spurlin, Michael Ortega, Seth Kazarians, Steve Chow, Steven Vargas, Belinda Lee, David Lewinski, Gabor Oroszlan
-
Patent number: 8968233Abstract: An arteriovenous shunt assembly including a shunt having a hollow bore between open first and second ends thereof and a valve slidably disposed through the hollow bore. The valve includes means for retaining the valve in a closed position or in any of various selected open positions that provide corresponding different rates of blood flow through the shunt assembly. In some embodiments, the AV shunt assembly is self-expandable from a collapsed tow-profile configuration employed during transluminal delivery. The valve position in the hollow bore may be adjusted in vivo by inflating a catheter balloon in a blood vessel to bear against an end of the valve. Methods for using the shunt assembly are also disclosed.Type: GrantFiled: February 3, 2012Date of Patent: March 3, 2015Assignee: Medtronic Vascular, Inc.Inventors: Niall Duffy, Kevin O'Sullivan
-
Patent number: 8968379Abstract: In one aspect, a stent delivery system includes a catheter having two or more pullwire lumens evenly spaced about the central axis of the catheter and thereby balanced within the catheter. Pullwires are positioned in the pullwire lumens. Proximal portions of the pullwires are attached to a connector, which is attached to a master pullwire. The connector has a given range of motion that allows the pullwires to move within the pullwire lumens, thereby ensuring full flexibility of the catheter. The pullwires assume different lengths. A pullwire positioned over the outer curve of a flexed catheter may be longer than a pullwire positioned within the inner curve of the catheter, preventing the catheter from being straightened or displaced by the action of retracting the pullwires. The catheter may serve as either an inner member on which a stent is mounted or a sheath enclosing a stent.Type: GrantFiled: September 2, 2005Date of Patent: March 3, 2015Assignee: Medtronic Vascular, Inc.Inventor: Jack Pryor
-
Patent number: 8968393Abstract: A system for minimally invasive repair of a mitral valve including a catheter, a capture body and a surgical fastener. The capture body includes legs extending from a center portion, and is self-transitionable from a collapsed arrangement to a normal arrangement in which the legs extend in a common wind direction. The fastener has a self-closing clip forming a loop in an undeflected arrangement. In a delivery state, the capture body and fastener are disposed within the catheter and forced to the collapsed and deflected arrangements, respectively. In a capture state, the capture body legs are distal the catheter and self-assume the normal arrangement for capturing chordae. In a release state, the fastener is released from the catheter and the clip self-transitions toward the undeflected arrangement for securing the mitral valve leaflets.Type: GrantFiled: April 28, 2011Date of Patent: March 3, 2015Assignee: Medtronic, Inc.Inventor: Paul Rothstein
-
Patent number: 8968384Abstract: A circumferentially constraining suture for an endovascular prosthesis having a tubular body and a plurality of stents coupled to the tubular body includes a first thread coupled at a first end to one of the stents and a first thread loop disposed opposite the first end. The first thread extends only partially around a circumference of the tubular body in a radially expanded configuration. A second thread having a second thread loop is interlocked with the first thread loop and extends from the first thread loop around a remainder of the circumference of the tubular body. Pulling the second thread causes the first thread to circumferentially constrain the tubular body to a reduced diameter configuration. A trigger wire inserted through the first thread loop retains the first thread such that the tubular body is in the reduced diameter configuration after removal of the second thread.Type: GrantFiled: April 27, 2012Date of Patent: March 3, 2015Assignee: Medtronic Vascular, Inc.Inventors: Meghan Pearson, Emilie Simmons, Stephen Pearce, Stephannie Rundle, Ana Zavala
-
Patent number: 8972003Abstract: The perivascular leak repair system, and method of using the same, of the present invention provides a sealant reservoir 102 with a repair catheter 104 operably attached; a flow control device 106 disposed between the sealant reservoir 102 and the repair catheter 104, and the flow control device 106 responsive to a flow control signal 108; a heart phase detector 114 generating a diastole phase signal 112; an injection switch 122 generating a injection signal 120; and a flow controller 110 responsive to the diastole phase signal 112 and the injection signal 120, and generating the flow control signal 108. A method of sealing a perivascular leak comprises identifying the perivascular leak 140; inserting a repair catheter to the perivascular leak 142; injecting sealant at the perivascular leak 144; and removing the repair catheter 146. The sealant can be injected when the heart is in diastole to sweep the sealant into the perivascular leak.Type: GrantFiled: October 28, 2013Date of Patent: March 3, 2015Assignee: Medtronic Vascular, Inc.Inventors: Jeffrey W. Allen, David S. Brin, Chris M. Coppin
-
Patent number: 8968391Abstract: Methods for ameliorating stent graft migration and endoleak using treatment site-specific cell growth promoting compositions in combination with stent grafts are disclosed. Also disclosed are application of cell growth promoting compositions such as, but not limited to, autologous platelet gel compositions directly to treatment sites during or after stent graft implantation.Type: GrantFiled: March 13, 2007Date of Patent: March 3, 2015Assignee: Medtronic Vascular, Inc.Inventors: Dennis Brooks, Jack Chu, Scott Doig, Trevor Huang, Tessy Kanayinkal