Patents by Inventor Randell L. Werneth
Randell L. Werneth has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140364842Abstract: A medical method is provided, including a medical device having a distal assembly including at least one electrode and at least one treatment element, the medical device generating information regarding at least one of a physiological measurement and an operational parameter of the medical device; a plurality of surface electrodes affixable to a skin of the patient, wherein the surface electrodes are in electrical communication with the distal assembly to obtain position information of the medical device; and a processor pairing the position information and the at least one of a physiological measurement and an operational parameter of the medical device.Type: ApplicationFiled: August 26, 2014Publication date: December 11, 2014Inventors: Randell L. WERNETH, Marshall SHERMAN, Mark T. STEWART, J. Christopher FLAHERTY
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Patent number: 8845631Abstract: A medical method is provided, including a medical device having a distal assembly including at least one electrode and at least one treatment element, the medical device generating information regarding at least one of a physiological measurement and an operational parameter of the medical device; a plurality of surface electrodes affixable to a skin of the patient, wherein the surface electrodes are in electrical communication with the distal assembly to obtain position information of the medical device; and a processor pairing the position information and the at least one of a physiological measurement and an operational parameter of the medical device.Type: GrantFiled: April 28, 2010Date of Patent: September 30, 2014Assignee: Medtronic Ablation Frontiers LLCInventors: Randell L. Werneth, Marshall Sherman, Mark T. Stewart, J. Christopher Flaherty
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Patent number: 8849367Abstract: Devices, systems and methods are disclosed for the ablation of tissue. A steerable ablation catheter can include one or more ablation elements at its distal end and one or more ablation elements fixedly attached to its shaft. The distal end of the ablation catheter can be deflected to assume a number of different deflection geometries in at least one direction along the shaft. One feature of the ablation catheter is that its shaft can comprise materials of differing durometers or stiffnesses attached together at a joint. Methods associated with use of the ablation catheter are also covered.Type: GrantFiled: May 31, 2013Date of Patent: September 30, 2014Assignee: Medtronic Ablation Frontiers LLCInventors: Randell L. Werneth, Ricardo D. Roman, Christopher G. Kunis, Alexander J. Asconeguy, Sadaf Soleymani, Jeffrey Trinidad, Martin Chambers, Hakan Oral, Fred Morady, Jerald L. Cox, Guillermo W. Moratorio, Samuel Fu, J. Christopher Flaherty
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Publication number: 20140288546Abstract: 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: ApplicationFiled: June 5, 2014Publication date: September 25, 2014Inventors: Marshall L. SHERMAN, Randell L. WERNETH, J. Christopher FLAHERTY
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Patent number: 8834461Abstract: Devices, systems and methods are disclosed for the ablation of tissue. Embodiments include an ablation catheter that has an array of ablation elements attached to a deployable carrier assembly. The carrier assembly can be constrained within the lumen of a catheter, and deployed to take on an expanded condition. The carrier assembly includes multiple electrodes that are configured to ablate tissue at low power. Additional embodiments include a system that includes an interface unit for delivering one or more forms of energy to the ablation catheter.Type: GrantFiled: July 11, 2006Date of Patent: September 16, 2014Assignee: Medtronic Ablation Frontiers LLCInventors: Randell L. Werneth, Christopher G. Kunis, J. Christopher Flaherty, Marshall L. Sherman
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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: 8771267Abstract: Devices, systems and methods are disclosed for the mapping of electrical signals and the ablation of tissue. Embodiments include an ablation catheter that has an array of ablation elements attached to a deployable carrier assembly. The carrier assembly can be transformed from a compact, linear configuration to a helical configuration, such as to map and ablate pulmonary vein ostia.Type: GrantFiled: November 15, 2012Date of Patent: July 8, 2014Inventors: Christopher G. Kunis, Ricardo David Roman, Alexander J. Asconeguy, J. Christopher Flaherty, Randell L. Werneth
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Publication number: 20140171942Abstract: Devices, systems and methods are disclosed for the ablation of tissue. Embodiments include an ablation catheter that has an array of ablation elements attached to a deployable carrier assembly. The carrier assembly can be constrained within the lumen of a catheter, and deployed to take on an expanded condition. The carrier assembly includes multiple electrodes that are configured to ablate tissue at low power. Systems include an interface unit with a visual display that provides a visual representation of the geometry of the ablation elements and/or provides selection means for selecting an icon provided on the display.Type: ApplicationFiled: January 23, 2014Publication date: June 19, 2014Applicant: Medtronic Ablation Frontiers LLCInventors: Randell L. WERNETH, J. Christopher FLAHERTY, Hakan ORAL, Fred MORADY, Ricardo David ROMAN, Marshall L. SHERMAN
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Publication number: 20140163347Abstract: A medical device including a catheter having a shaft with a distal portion; a first plurality of substantially hemispherical electrodes coupled to the distal portion; a second plurality of substantially hemispherical electrodes coupled to the shaft proximal of the first plurality, where the second plurality of electrodes are oriented substantially orthogonal to the first plurality of electrodes; and an additional electrode coupled to the shaft. A console may have a processor in electrical communication with the first and second plurality of electrodes and the reference electrode, the processor programmed to obtaining a monophasic action potential recording from at least one of the first and second plurality of electrodes.Type: ApplicationFiled: February 18, 2014Publication date: June 12, 2014Applicant: Medtronic Ablation Frontiers LLCInventors: Randell L. WERNETH, Meleze HOCINI, Mark T. STEWART, Dan WITTENBERGER, Timothy J. CORVI, Michael T. LAU, Vinod SHARMA
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Publication number: 20140142564Abstract: An ablation therapy system and systematic method is provided for treating continuous atrial fibrillation. The therapy system includes a Multi-Channel RF Ablation Generator, an ECG interface, an assembly of at least three ablation catheters, and an ECG interface operably coupling and interfacing the catheters to both an ECG unit and the RF Ablation Generator. The systematic method includes transseptally accessing the Left Atrium (LA) through the septum of the patient's heart, and performing an endocardial pulmonary vein ablation procedure on the pulmonary vein ostial tissue surrounding one or more pulmonary veins in a manner treating aberrant conductive pathways therethrough. After performing the pulmonary vein ablation, the method further includes performing an endocardial atrial septum ablation procedure on the septal tissue in a manner treating aberrant conductive pathways therethrough.Type: ApplicationFiled: January 24, 2014Publication date: May 22, 2014Applicant: Medtronic Ablation Frontiers LLCInventors: Randell L. WERNETH, Christopher G. KUNIS, Hakan ORAL, Fred MORADY, J. Christopher FLAHERTY
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DEVICE AND METHOD FOR THE GEOMETRIC DETERMINATION OF ELECTRICAL DIPOLE DENSITIES ON THE CARDIAC WALL
Publication number: 20140121470Abstract: Disclosed are devices (100), systems (500), and methods for determining the dipole densities on heart walls. In particular, a triangularization of the heart wall is performed in which the dipole density of each of multiple regions correlate to the potential measured at various located within the associated chamber of the heart. To create a database of dipole densities, mapping information recorded by multiple electrodes (316) located on one or more catheters (310) and anatomical information is used. In addition, skin electrodes may be implemented. Additionally, one or more ultrasound elements (340) are provided, such as on a clamp assembly or integral to a mapping electrode, to produce real time images of device components and surrounding structures.Type: ApplicationFiled: March 9, 2012Publication date: May 1, 2014Applicant: ACUTUS MEDICAL, INC.Inventors: Christoph Scharf, Gunter Scharf, Randell L. Werneth -
Patent number: 8682410Abstract: A medical device including a catheter having a shaft with a distal portion; a first plurality of substantially hemispherical electrodes coupled to the distal portion; a second plurality of substantially hemispherical electrodes coupled to the shaft proximal of the first plurality, where the second plurality of electrodes are oriented substantially orthogonal to the first plurality of electrodes; and an additional electrode coupled to the shaft. A console may have a processor in electrical communication with the first and second plurality of electrodes and the reference electrode, the processor programmed to obtaining a monophasic action potential recording from at least one of the first and second plurality of electrodes.Type: GrantFiled: March 10, 2011Date of Patent: March 25, 2014Assignee: Medtronic Ablation Frontiers LLCInventors: Randell L. Werneth, Meleze Hocini, Mark T. Stewart, Dan Wittenberger, Timothy J. Corvi, Michael Lau, Vinod Sharma
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Patent number: 8657814Abstract: Devices, systems and methods are disclosed for the ablation of tissue. Embodiments include an ablation catheter that has an array of ablation elements attached to a deployable carrier assembly. The carrier assembly can be constrained within the lumen of a catheter, and deployed to take on an expanded condition. The carrier assembly includes multiple electrodes that are configured to ablate tissue at low power. Systems include an interface unit with a visual display that provides a visual representation of the geometry of the ablation elements and/or provides selection means for selecting an icon provided on the display.Type: GrantFiled: May 22, 2006Date of Patent: February 25, 2014Assignee: Medtronic Ablation Frontiers LLCInventors: Randell L. Werneth, J. Christopher Flaherty, Hakan Oral, Fred Morady, Ricardo David Roman, Marshall L. Sherman
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Patent number: 8647336Abstract: A medical device, system and method are provided for thermal medical treatment. A medical device for cryogenic treatment may include a tip and a thermal guard or shield. The tip may be at a distal end of a catheter shaft, having a distal surface and lateral surfaces. The thermal guard may be coupled to the catheter proximal of the distal tip, surrounding the longitudinal axis and exposing the distal surface, to resist heat transfer from body fluids to the lateral surfaces of the tip. An efficiency of heat transfer from selected tissue to be treated to the distal surface of the cryogenic tip is thereby increased.Type: GrantFiled: June 16, 2010Date of Patent: February 11, 2014Assignee: Medtronic Ablation Frontiers LLCInventor: Randell L. Werneth
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Patent number: 8641704Abstract: An ablation therapy system and systematic method is provided for treating continuous atrial fibrillation. The therapy system includes a Multi-Channel RF Ablation Generator, an ECG interface, an assembly of at least three ablation catheters, and an ECG interface operably coupling and interfacing the catheters to both an ECG unit and the RF Ablation Generator. The systematic method includes transseptally accessing the Left Atrium (LA) through the septum of the patient's heart, and performing an endocardial pulmonary vein ablation procedure on the pulmonary vein ostial tissue surrounding one or more pulmonary veins in a manner treating aberrant conductive pathways therethrough. After performing the pulmonary vein ablation, the method further includes performing an endocardial atrial septum ablation procedure on the septal tissue in a manner treating aberrant conductive pathways therethrough.Type: GrantFiled: May 7, 2008Date of Patent: February 4, 2014Assignee: Medtronic Ablation Frontiers LLCInventors: Randell L. Werneth, Christopher G. Kunis, Hakan Oral, Fred Morady, J. Christopher Flaherty
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Patent number: 8617152Abstract: Devices, systems and methods are disclosed for the ablation of tissue and treatment of cardiac arrhythmia. An ablation system includes an ablation catheter that has an array of ablation elements and a location element, an esophageal probe also including a location element, and an interface unit that provides energy to the ablation catheter. The distance between the location elements, determined by calculating means of the system, can be used by the system to set or modify one or more system parameters.Type: GrantFiled: July 12, 2005Date of Patent: December 31, 2013Assignee: Medtronic Ablation Frontiers LLCInventors: Randell L. Werneth, Marshall L. Sherman, J. Christopher Flaherty
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Patent number: 8617156Abstract: Devices, systems and methods are disclosed for the ablation of tissue. Embodiments include an ablation catheter that has an array of ablation elements attached to a deployable carrier assembly. The carrier assembly can be constrained within the lumen of a catheter, and deployed to take on an expanded condition. The carrier assembly includes multiple electrodes that are configured to ablate tissue at low power. Additional embodiments include a system that includes an interface unit for delivering one or more forms of energy to the ablation catheter.Type: GrantFiled: December 19, 2008Date of Patent: December 31, 2013Assignee: Medtronic Ablation Frontiers LLCInventors: Randell L. Werneth, Christopher G. Kunis, J. Christopher Flaherty, Marshall L. Sherman
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Publication number: 20130331831Abstract: Devices, systems and methods are disclosed for the ablation of tissue. Embodiments include an ablation catheter which has an array of ablation elements attached to a deployable carrier assembly. The carrier assembly can be constrained within the lumen of a catheter, and deployed to take on an expanded condition.Type: ApplicationFiled: May 30, 2013Publication date: December 12, 2013Applicant: MEDTRONIC ABLATION FRONTIERS LLCInventors: Randell L. WERNETH, Marshall L. SHERMAN, Thomas M. CASTELLANO, J. Christopher FLAHERTY, Gary Edward CURRIE
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Publication number: 20130296844Abstract: Devices, systems and methods are disclosed for the ablation of tissue. A steerable ablation catheter can include one or more ablation elements at its distal end and one or more ablation elements fixedly attached to its shaft. The distal end of the ablation catheter can be deflected to assume a number of different deflection geometries in at least one direction along the shaft. One feature of the ablation catheter is that its shaft can comprise materials of differing durometers or stiffnesses attached together at a joint. Methods associated with use of the ablation catheter are also covered.Type: ApplicationFiled: May 31, 2013Publication date: November 7, 2013Inventors: Randell L. WERNETH, Ricardo D. ROMAN, Christopher G. KUNIS, Alexander J. ASCONEGUY, Sadaf SOLEYMANI, Jeffrey TRINIDAD, Martin CHAMBERS, Hakan ORAL, Fred MORADY, Jerald L. COX, Guillermo W. MORATORIO, Samuel FU, J. Christopher FLAHERTY
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Patent number: 8571626Abstract: Catheters and methods for obtaining monophasic action potential (“MAP”) electrograms include a flexible catheter body defining a longitudinal axis, and a distal assembly affixed to the catheter body distal end defining a distal tip. The distal assembly has at least three MAP recording electrodes, and at least one reference electrode for determining reference potential. The recording electrodes are each positioned a radial distance from the longitudinal axis in at least three different radial directions, defining a recording geometry substantially having radial symmetry. The reference electrode is a longitudinal distance from the recording geometry. Optional features include a steerable catheter shaft, one or more radio-frequency ablation electrodes, and a dedicated pacing electrode. Different possible embodiments include a dome housing having the recording electrodes in a fixed spatial arrangement, and a distal loop assembly having an array of electrodes on at least three flexible loop elements.Type: GrantFiled: September 5, 2012Date of Patent: October 29, 2013Assignee: Medtronic Ablation Frontiers LLCInventors: Michael Lau, Randell L. Werneth, Timothy J. Corvi, Sumita Bhola, Mark T. Stewart, Michel Haissaguerre, Meleze Hocini