Patents by Inventor Mark S Leung

Mark S Leung 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).

  • Publication number: 20150351833
    Abstract: Catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a catheter treatment device comprising an elongated shaft. The elongated shaft is sized and configured to deliver an energy delivery element to a renal artery via an intravascular path. Thermal or electrical renal neuromodulation may be achieved via direct and/or via indirect application of thermal and/or electrical energy to heat or cool, or otherwise electrically modulate, neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers.
    Type: Application
    Filed: June 16, 2015
    Publication date: December 10, 2015
    Inventors: Justin Goshgarian, Benjamin J. Clark, Rajeshkumar Dhamodharasamy, Mark S. Leung, Maria G. Aboytes
  • Publication number: 20150257815
    Abstract: The present disclosure relates to devices, systems and methods for evaluating the success of a treatment applied to tissue in a patient, such as a radio frequency ablative treatment used to neuromodulate nerves associated with the renal artery. A system monitors parameters or values generated during the course of a treatment. Feedback provided to an operator is based on the monitored values and relates to an assessment of the likelihood that a completed treatment was technically successful. In other embodiments, parameters or values generated during the course of an incomplete treatment (such as due to high temperature or high impedance conditions) may be evaluated to provide additional instructions or feedback to an operator.
    Type: Application
    Filed: May 21, 2015
    Publication date: September 17, 2015
    Inventors: Sowmya Ballakur, Robert J. Beetel, Paul Friedrichs, David Herzfeld, Andrew Wu, Denise Zarins, Mark S. Leung
  • Patent number: 9084610
    Abstract: Catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a catheter treatment device comprising an elongated shaft. The elongated shaft is sized and configured to deliver an energy delivery element to a renal artery via an intravascular path. Thermal or electrical renal neuromodulation may be achieved via direct and/or via indirect application of thermal and/or electrical energy to heat or cool, or otherwise electrically modulate, neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: July 21, 2015
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Justin Goshgarian, Benjamin J. Clark, Rajeshkumar Dhamodharasamy, Mark S. Leung, Maria G. Aboytes
  • Patent number: 9066720
    Abstract: The present disclosure relates to devices, systems and methods for evaluating the success of a treatment applied to tissue in a patient, such as a radio frequency ablative treatment used to neuromodulate nerves associated with the renal artery. A system monitors parameters or values generated during the course of a treatment. Feedback provided to an operator is based on the monitored values and relates to an assessment of the likelihood that a completed treatment was technically successful. In other embodiments, parameters or values generated during the course of an incomplete treatment (such as due to high temperature or high impedance conditions) may be evaluated to provide additional instructions or feedback to an operator.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: June 30, 2015
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Sowmya Ballakur, Robert Beetel, Paul Friedrichs, Andrew Wu, Denise Zarins, David Herzfeld, Mark S. Leung
  • Patent number: 9060755
    Abstract: Neuromodulation cryotherapeutic devices and associated systems and methods are disclosed herein. A cryotherapeutic device configured in accordance with a particular embodiment of the present technology can include an elongated shaft having distal portion and a supply lumen along at least a portion of the shaft. The shaft can be configured to locate the distal portion intravascularly at a treatment site proximate a renal artery or renal ostium. The supply lumen can be configured to receive a liquid refrigerant. The cryotherapeutic device can further include a cooling assembly at the distal portion of the shaft. The cooling assembly can include an applicator in fluid communication with the supply lumen and configured to deliver cryotherapeutic cooling to nerves proximate the target site when the cooling assembly is in a deployed state.
    Type: Grant
    Filed: October 23, 2011
    Date of Patent: June 23, 2015
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Naomi Buckley, Michael Cummins, Danny Donovan, Luke Hughes, Brian Kelly, Gary Kelly, Grace Kelly, John Kelly, Micheal Moriarty, Karun D. Naga, Fiachra Sweeney, Vincenzo Tilotta, Ronan Wood, Lana Woolley, Denise Zarins, Mark S. Leung, Mark Gelfand, Barry Mullins
  • Patent number: 9060754
    Abstract: Neuromodulation cryotherapeutic devices and associated systems and methods are disclosed herein. A cryotherapeutic device configured in accordance with a particular embodiment includes an elongated shaft and a cooling assembly at a distal portion of the shaft. The shaft can be configured to locate the distal portion intravascularly at a treatment site within or otherwise proximate a renal artery. The cryotherapeutic device can further include a supply lumen configured to carry liquid refrigerant toward the cooling assembly. The cooling assembly can include an applicator in fluid communication with the supply lumen and configured to deliver cryotherapeutic cooling to nerves proximate the target site when in a deployed state.
    Type: Grant
    Filed: October 23, 2011
    Date of Patent: June 23, 2015
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Naomi Buckley, Benjamin J. Clark, Michael Cummins, Danny Donovan, Luke Hughes, Brian Kelly, Gary Kelly, Grace Kelly, John Kelly, Seamus Ledwith, Gwenda McMullin, Karun D. Naga, Stephen Nash, Eric Ryba, Fiachra Sweeney, Vincenzo Tilotta, Roman Turovskiy, Lana Woolley, Denise Zarins, Mark Gelfand, Mark S. Leung, Barry Mullins
  • Publication number: 20150057654
    Abstract: Catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a catheter treatment device comprising an elongated shaft. The elongated shaft is sized and configured to deliver an energy delivery element to a renal artery via an intravascular path. Thermal or electrical renal neuromodulation may be achieved via direct and/or via indirect application of thermal and/or electrical energy to heat or cool, or otherwise electrically modulate, neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers.
    Type: Application
    Filed: June 26, 2014
    Publication date: February 26, 2015
    Inventors: Mark S. Leung, Benjamin J. Clark, Kenneth J. Michlitsch, Erik Thai, Andrew Wu, Denise Zarins
  • Patent number: 8945107
    Abstract: Neuromodulation cryotherapeutic devices and associated systems and methods are disclosed herein. A cryotherapeutic device configured in accordance with a particular embodiment of the present technology can include an elongated shaft having distal portion and a supply lumen along at least a portion of the shaft. The shaft can be configured to locate the distal portion intravascularly at a treatment site proximate a renal artery or renal ostium. The supply lumen can be configured to receive a liquid refrigerant. The cryotherapeutic device can further include a cooling assembly at the distal portion of the shaft. The cooling assembly can include an applicator in fluid communication with the supply lumen and configured to deliver cryotherapeutic cooling to nerves proximate the target site when the cooling assembly is in a deployed state.
    Type: Grant
    Filed: October 23, 2011
    Date of Patent: February 3, 2015
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Naomi Buckley, Benjamin J. Clark, Michael Cummins, Danny Donovan, Luke Hughes, Brian Kelly, Gary Kelly, Grace Kelly, John Kelly, Seamus Ledwith, Gwenda McMullin, Karun D. Naga, Stephen Nash, Francesco Piccagli, Eric Ryba, Fiachra Sweeney, Vincenzo Tilotta, Roman Turovskiy, Lana Woolley, Denise Zarins, Mark Gelfand, Mark S. Leung, Barry Mullins
  • Patent number: 8870863
    Abstract: Catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a catheter treatment device comprising an elongated shaft. The elongated shaft is sized and configured to deliver an energy delivery element to a renal artery via an intravascular path. Thermal or electrical renal neuromodulation may be achieved via direct and/or via indirect application of thermal and/or electrical energy to heat or cool, or otherwise electrically modulate, neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: October 28, 2014
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Mark S. Leung, Benjamin J. Clark, Kenneth J. Michlitsch, Erik Thai, Andrew Wu, Denise Zarins
  • Publication number: 20140303618
    Abstract: Multi-directional deflectable catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a catheter treatment device comprising an elongated shaft. The elongated shaft is sized and configured to deliver a thermal element to a renal artery via an intravascular path. Thermally or electrical renal neuromodulation may be achieved via direct and/or via indirect application of thermal and/or electrical energy to heat or cool, or otherwise electrically modulate, neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Andrew Wu, Benjamin J. Clark, Denise Zarins, Erik Thai, Kenneth J. Michlitsch, Mark S. Leung
  • Publication number: 20140277310
    Abstract: A catheter including an elongate shaft having a distal end portion locatable within or otherwise proximate to a body lumen of a patient, the catheter having a delivery state and a deployed state, and a tether secured to the neuromodulation unit and operationally associated with the shaft. The neuromodulation unit includes a therapeutic element and a support structure carrying the therapeutic element. The support structure is configured to resiliently urge the therapeutic element radially outward relative to a longitudinal axis of the support structure. The tether is sufficiently flexible to allow the neuromodulation unit to move independently of the distal end portion of the shaft when the catheter is in the deployed state and the neuromodulation unit is within the body lumen.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Robert J. Beetel, Maria G. Aboytes, Mark S. Leung
  • Publication number: 20140243809
    Abstract: Methods, devices, and systems for carotid body modulation via accessing a target site with an endovascular approach through a superficial temporal artery.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Inventors: Mark GELFAND, Howard LEVIN, Charles LENNOX, Marcus W. WILBORN, Paul A. SOBOTKA, Zoar Jacob ENGELMAN, Martin M. GRASSE, Mark S. LEUNG
  • Patent number: 8728075
    Abstract: Multi-directional deflectable catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a catheter treatment device comprising an elongated shaft. The elongated shaft is sized and configured to deliver a thermal element to a renal artery via an intravascular path. Thermally or electrical renal neuromodulation may be achieved via direct and/or via indirect application of thermal and/or electrical energy to heat or cool, or otherwise electrically modulate, neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: May 20, 2014
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Andrew Wu, Benjamin J. Clark, Denise Zarins, Erik Thai, Kenneth J. Michlitsch, Mark S. Leung
  • Publication number: 20130310823
    Abstract: Systems, devices, and methods for treating a patient having a sympathetically mediated disease associated at least in part with augmented peripheral chemoreflex or heightened sympathetic activation. The treatments include ablating one or more peripheral chemoreceptors or associated afferent nerves to reduce or remove afferent neural signals from the peripheral chemoreceptor.
    Type: Application
    Filed: April 24, 2013
    Publication date: November 21, 2013
    Inventors: Mark Gelfand, Howard Levin, Charles Lennox, Marat Fudim, Zoar Jacob Engelman, Martin M. Grasse, Mark S. Leung, Brett Schleicher
  • Publication number: 20120150267
    Abstract: Neuromodulation cryotherapeutic devices and associated systems and methods are disclosed herein. A cryotherapeutic device configured in accordance with a particular embodiment of the present technology can include an elongated shaft having distal portion and a supply lumen along at least a portion of the shaft. The shaft can be configured to locate the distal portion intravascularly at a treatment site proximate a renal artery or renal ostium. The supply lumen can be configured to receive a liquid refrigerant. The cryotherapeutic device can further include a cooling assembly at the distal portion of the shaft. The cooling assembly can include an applicator in fluid communication with the supply lumen and configured to deliver cryotherapeutic cooling to nerves proximate the target site when the cooling assembly is in a deployed state.
    Type: Application
    Filed: October 23, 2011
    Publication date: June 14, 2012
    Applicant: Medtronic Ardian Luxembourg S.a.r.l
    Inventors: Naomi Buckley, Michael Cummins, Danny Donovan, Luke Hughes, Brian Kelly, Gary Kelly, Grace Kelly, John Kelly, Micheal Moriarty, Karun D. Naga, Fiachra Sweeney, Vincenzo Tilotta, Ronan Wood, Lana Woolley, Denise Zarins, Mark S. Leung, Mark Gelfand, Barry Mullins
  • Publication number: 20120136417
    Abstract: Neuromodulation cryotherapeutic devices and associated systems and methods are disclosed herein. A cryotherapeutic device configured in accordance with a particular embodiment of the present technology can include an elongated shaft having distal portion and a supply lumen along at least a portion of the shaft. The shaft can be configured to locate the distal portion intravascularly at a treatment site proximate a renal artery or renal ostium. The supply lumen can be configured to receive a liquid refrigerant. The cryotherapeutic device can further include a cooling assembly at the distal portion of the shaft. The cooling assembly can include an applicator in fluid communication with the supply lumen and configured to deliver cryotherapeutic cooling to nerves proximate the target site when the cooling assembly is in a deployed state.
    Type: Application
    Filed: October 23, 2011
    Publication date: May 31, 2012
    Applicant: Medtronic Ardian Luxembourg S.a.r.l
    Inventors: Naomi Buckley, Benjamin J. Clark, Michael Cummins, Danny Donovan, Luke Hughes, Brian Kelly, Gary Kelly, Grace Kelly, John Kelly, Seamus Ledwith, Gwenda McMullin, Karun D. Naga, Stephen Nash, Francesco Piccagli, Eric Ryba, Fiachra Sweeney, Vincenzo Tilotta, Roman Turovskiy, Lana Woolley, Denise Zarins, Mark Gelfand, Mark S. Leung, Barry Mullins
  • Publication number: 20120136350
    Abstract: Catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a catheter treatment device comprising an elongated shaft. The elongated shaft is sized and configured to deliver an energy delivery element to a renal artery via an intravascular path. Thermal or electrical renal neuromodulation may be achieved via direct and/or via indirect application of thermal and/or electrical energy to heat or cool, or otherwise electrically modulate, neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers.
    Type: Application
    Filed: October 21, 2011
    Publication date: May 31, 2012
    Applicant: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Justin Goshgarian, Benjamin J. Clark, Rajeshkumar Dhamodharasamy, Mark S. Leung, Maria G. Aboytes
  • Publication number: 20120136344
    Abstract: Neuromodulation cryotherapeutic devices and associated systems and methods are disclosed herein. A cryotherapeutic device configured in accordance with a particular embodiment of the present technology can include an elongated shaft having distal portion and a supply lumen along at least a portion of the shaft. The shaft can be configured to locate the distal portion intravascularly at a treatment site proximate a renal artery or renal ostium. The supply lumen can be configured to receive a liquid refrigerant. The cryotherapeutic device can further include a cooling assembly at the distal portion of the shaft. The cooling assembly can include an applicator in fluid communication with the supply lumen and configured to deliver cryotherapeutic cooling to nerves proximate the target site when the cooling assembly is in a deployed state.
    Type: Application
    Filed: October 23, 2011
    Publication date: May 31, 2012
    Applicant: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Naomi Buckley, Benjamin J. Clark, Michael Cummins, Danny Donovan, Luke Hughes, Brian Kelly, Gary Kelly, Grace Kelly, John Kelly, Gwenda McMullin, Karun D. Naga, Stephen Nash, Eric Ryba, Fiachra Sweeney, Vincenzo Tilotta, Lana Woolley, Denise Zarins, Mark Gelfand, Mark S. Leung, Barry Mullins
  • Publication number: 20120136418
    Abstract: Neuromodulation cryotherapeutic devices and associated systems and methods are disclosed herein. A cryotherapeutic device configured in accordance with a particular embodiment of the present technology can include an elongated shaft having distal portion and a supply lumen along at least a portion of the shaft. The shaft can be configured to locate the distal portion intravascularly at a treatment site proximate a renal artery or renal ostium. The supply lumen can be configured to receive a liquid refrigerant. The cryotherapeutic device can further include a cooling assembly at the distal portion of the shaft. The cooling assembly can include an applicator in fluid communication with the supply lumen and configured to deliver cryotherapeutic cooling to nerves proximate the target site when the cooling assembly is in a deployed state.
    Type: Application
    Filed: October 23, 2011
    Publication date: May 31, 2012
    Applicant: Medtronic Ardian Luxembourg S.a.r.l
    Inventors: Naomi Buckley, Benjamin J. Clark, Michael Cummins, Danny Donovan, Luke Hughes, Brian Kelly, Gary Kelly, Grace Kelly, John Kelly, Seamus Ledwith, Gwenda McMullin, Karun D. Naga, Stephen Nash, Eric Ryba, Fiachra Sweeney, Vincenzo Tilotta, Roman Turovskiy, Lana Woolley, Denise Zarins, Mark Gelfand, Mark S. Leung, Barry Mullins
  • Publication number: 20120130360
    Abstract: Neuromodulation cryotherapeutic devices and associated systems and methods are disclosed herein. A cryotherapeutic device configured in accordance with a particular embodiment of the present technology can include an elongated shaft having distal portion and a supply lumen along at least a portion of the shaft. The shaft can be configured to locate the distal portion intravascularly at a treatment site proximate a renal artery or renal ostium. The supply lumen can be configured to receive a liquid refrigerant. The cryotherapeutic device can further include a cooling assembly at the distal portion of the shaft. The cooling assembly can include an applicator in fluid communication with the supply lumen and configured to deliver cryotherapeutic cooling to nerves proximate the target site when the cooling assembly is in a deployed state.
    Type: Application
    Filed: October 23, 2011
    Publication date: May 24, 2012
    Applicant: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Naomi Buckley, Benjamin J. Clark, Michael Cummins, Danny Donovan, Luke Hughes, Brian Kelly, Gary Kelly, Grace Kelly, John Kelly, Gwenda McMullin, Karun D. Naga, Stephen Nash, Eric Ryba, Fiachra Sweeney, Vincenzo Tilotta, Roman Turovskiy, Lana Woolley, Denise Zarins, Mark Gelfand, Mark S. Leung, Barry Mullins, Michael Turovskiy