Patents by Inventor Timothy G. Laske

Timothy G. Laske 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: 20220160307
    Abstract: Systems and methods are described herein for estimating and filtering electrophysiological signals. In some examples, a noise filtering system can be employed to receive at least one electrophysiological signal. A signal segment extractor of the system can extract a signal segment of interest from the electrophysiological signal. The system employs a signal segment noise calculator to evaluate the extracted signal segment of interest to estimate a noise in the signal segment of interest. The estimated noise can be provided to a signal segment filter of the system to determine a surrogate noise estimate for at least one remaining signal segment of the electrophysiological signal for noise filtering the at least one remaining signal segment. The signal segment noise calculator can be configured to filter the signal segment of interest based on the estimated noise and the filtered signal segments can be combined to provide a filtered electrophysiological signal.
    Type: Application
    Filed: June 9, 2021
    Publication date: May 26, 2022
    Inventors: QINGGUO ZENG, JEFFREY B. ADAIR, BRIAN P. GEORGE, QING LOU, TIMOTHY G. LASKE
  • Publication number: 20220142694
    Abstract: A medical device having a catheter and a fluid delivery conduit entirely disclosed within a portion of the catheter. The catheter may have a thermally transmissive region in fluid communication with the fluid delivery conduit and a rod disposed within at least a portion of the fluid delivery conduit. The medical device may control variable fluid flow with the ability to modify the effective cross-sectional area of the fluid delivery conduit available for fluid flow. Additional configurations provided herein may allow for the selective manipulation of a footprint or therapeutic pattern achievable with the medical device during a single procedure, negating the need for the removal and insertion of multiple devices to achieve the same variations in treatment geometry or characteristics.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 12, 2022
    Inventors: Regina E. GROVES, Jean-Pierre LALONDE, Timothy G. LASKE, Claudia LUECKGE, Dan WITTENBERGER, Ramin SABBAGHE-KERMANI, Mahmoud KABIR-SERAJ
  • Publication number: 20220104749
    Abstract: Systems and methods for cardiac fast firing (e.g., atrial fast firing) detection perform frequency analysis on channels of collected cardiac waveform data and test the data for outlier frequency complex content that is of higher frequency than baseline frequency complex content associated with cardiac fibrillation (e.g., atrial fibrillation) or other arrhythmogenic activity. Anatomical regions from whence the cardiac fast firing originates can be displayed in real time on an epicardial surface map via a graphical display, aiding administration of therapy. Prior to such detection, QRST complex removal can be performed to ensure that ventricular activity does not infect the atrial fast firing analysis. A frequency-based method for QRST complex removal is also disclosed.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Inventors: PING JIA, QINGGUO ZENG, TIMOTHY G. LASKE, QING LOU
  • Patent number: 11284999
    Abstract: A stented valve including a generally tubular stent structure that has a longitudinal axis, first and second opposite ends, a plurality of commissure support structures spaced from the first and second ends and extending generally parallel to the longitudinal axis, at least one structural wire positioned between each two adjacent commissure support structures, and at least one wing portion extending from two adjacent commissure support structures and toward one of the first and second ends of the stent structure. The stewed valve further includes a valve structure attached within the generally tubular stent structure to the commissure support structures.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: March 29, 2022
    Assignee: Medtronic, Inc.
    Inventors: Charles Tabor, Carol E. Eberhardt, Timothy G. Laske, Timothy R. Ryan, Joseph C. Morrow, Tammy Y. Tam, Brian A. Glynn, Anne L. Brody Rubin, Michael J. Tuchek
  • Patent number: 11266457
    Abstract: Systems and methods for controllably variable fluid flow are disclosed that provide the ability to modify the effective cross-sectional area of the fluid delivery conduit available for fluid flow. Accordingly, selective control of these configurations allows fluid flow to be regulated as desired while the fluid delivery pressure remains the same. Additional configurations provided herein allow for the selective manipulation of a footprint or therapeutic pattern achievable with the medical device during a single procedure, negating the need for the removal and insertion of multiple devices to achieve the same variations in treatment geometry or characteristics.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: March 8, 2022
    Assignee: Medtronic CryoCath LP
    Inventors: Regina E. Groves, Jean-Pierre Lalonde, Timothy G. Laske, Claudia Lueckge, Dan Wittenberger, Ramin Sabbaghe-Kermani, Mahmoud Kabir-Seraj
  • Patent number: 11259919
    Abstract: A stented valve including a generally tubular stent structure that has a longitudinal axis, first and second opposite ends, a plurality of commissure support structures spaced from the first and second ends and extending generally parallel to the longitudinal axis, at least one structural wire positioned between each two adjacent commissure support structures, and at least one wing portion extending from two adjacent commissure support structures and toward one of the first and second ends of the stent structure. The stewed valve further includes a valve structure attached within the generally tubular stent structure to the commissure support structures.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: March 1, 2022
    Assignee: Medtronic, Inc.
    Inventors: Charles Tabor, Carol E. Eberhardt, Timothy G. Laske, Timothy R. Ryan, Joseph C. Morrow, Tammy Y. Tam, Brian A. Glynn, Anne L. Brody Rubin, Michael J. Tuchek
  • Patent number: 11229392
    Abstract: Systems and methods for cardiac fast firing (e.g., atrial fast firing) detection perform frequency analysis on channels of collected cardiac waveform data and test the data for outlier frequency complex content that is of higher frequency than baseline frequency complex content associated with cardiac fibrillation (e.g., atrial fibrillation) or other arrhythmogenic activity. Anatomical regions from whence the cardiac fast firing originates can be displayed in real time on an epicardial surface map via a graphical display, aiding administration of therapy. Prior to such detection, QRST complex removal can be performed to ensure that ventricular activity does not infect the atrial fast firing analysis. A frequency-based method for QRST complex removal is also disclosed.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 25, 2022
    Assignee: CARDIOINSIGHT TECHNOLOGIES, INC.
    Inventors: Ping Jia, Qingguo Zeng, Timothy G. Laske, Qing Lou
  • Publication number: 20220000550
    Abstract: The present invention advantageously provides a molding device with conductive material for creating a catheter balloon with conductive elements, and methods and systems for manufacturing the catheter balloon with conductive elements. An exemplary method for coupling a plurality of conductive elements to an expandable element may include placing a first portion of a mold proximate a second portion of the mold to define a casting cavity. Conductive material may be deposited into the casting cavity. Polymeric material may be inserted into the casting cavity. The first portion of the mold may be secured to the second portion of the mold. The polymeric material may be expanded to place the polymeric material in contact with the conductive material.
    Type: Application
    Filed: September 15, 2021
    Publication date: January 6, 2022
    Inventors: Mark E. Henschel, Brian T. Howard, Timothy G. Laske, Kenneth C. Gardeski, Gonzalo Martinez, Mark T. Stewart, Lars M. Mattison
  • Publication number: 20210361425
    Abstract: A method of deploying an implantable stented device in an anatomical location of a patient, including the steps of providing a delivery system with first and second stent engagement structures at its distal end, attaching a first structural element of the stented device to the first stent engagement structure and attaching a second structural element of the stented device to the second silent engagement structure, advancing the stented device to an implantation site, and sequentially disengaging the first structural element of the stented device from the first stent engagement structure of the delivery system and then disengaging the second structural element of the stented device from the second stent engagement structure.
    Type: Application
    Filed: August 9, 2021
    Publication date: November 25, 2021
    Inventors: Timothy G. LASKE, Timothy R. RYAN, Carolyn C. MAJKRZAK, Eliot BLOOM, Charles TABOR
  • Publication number: 20210315693
    Abstract: A stented valve including a generally tubular stent structure that has a longitudinal axis, first and second opposite ends, a plurality of commissure support structures spaced from the first and second ends and extending generally parallel to the longitudinal axis, at least one structural wire positioned between each two adjacent commissure support structures, and at least one wing portion extending from two adjacent commissure support structures and toward one of the first and second ends of the stent structure. The stewed valve further includes a valve structure attached within the generally tubular stent structure to the commissure support structures.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 14, 2021
    Inventors: Charles Tabor, Carol E. Eberhardt, Timothy G. Laske, Timothy R. Ryan, Joseph C. Morrow, Tammy Y. Tam, Brian A. Glynn, Anne L. Brody Rubin, Michael J. Tuchek
  • Patent number: 11141209
    Abstract: A method and system for providing lesion depth feedback during an ablation procedure. In particular, the method and system provide feedback data or information relating to lesion depth in myocardial tissue during a cryoablation procedure. A plurality of tissue temperature measurements may be transmitted from a plurality of thermocouples disposed on a cryotreatment element, which measurements may be used to determine a slope of change in temperature sensed by each thermocouple over time. The circulation of coolant through the treatment element may be adjusted when the slope changes. A change in slope may indicate that the cryoablation temperatures have passed through target myocardial tissue into non-target, non-myocardial tissue, which may result in collateral damage to structures near the heart.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: October 12, 2021
    Inventors: Jean-Pierre Lalonde, Regina E. Groves, Timothy G. Laske, Paul A. Iaizzo, John C. Bischof
  • Patent number: 11083573
    Abstract: A delivery system for an implantable stented device having a handle with a plurality of actuation members, each actuation member connected to one or more stent attachment elements, a sheath having a proximal end attached to the handle, and a plurality of tubes extending within the sheath. The stent attachment elements extend from distal ends of the tubes. A first actuation member is configured to move a first stent attachment element proximally toward the handle and a second actuation member is configured to move a second stent attachment element proximally toward the handle, sequentially releasing specific portions of the stented device by causing distal ends of the stent attachment elements to contact an exterior of the distal ends of the tubes, thereby disengaging the first and second stent attachment elements from the stented device.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: August 10, 2021
    Assignee: Medtronic, Inc.
    Inventors: Timothy G. Laske, Timothy R. Ryan, Carolyn C. Majkrzak, Eliot Bloom, Charles Tabor
  • Publication number: 20210161453
    Abstract: The present invention relates to a method, device, and system for improved mapping and/or ablation of a tissue. The device may generally include an elongate body and a distal assembly affixed to the elongate body that includes a treatment electrode having a conductive mapping region and a selectively conductive ablation region that is conductive of high-frequency current and substantially non-conductive of low-frequency current. Alternatively, the device may generally include a treatment electrode having a conductive mapping or ablation region and a region that is coated with an electrically insulated but thermally conductive layer.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 3, 2021
    Inventors: Mark T. Stewart, Mark Allen Benscoter, Jon Virgil Evans, Timothy G. Laske, Gonzalo Martinez
  • Publication number: 20210145515
    Abstract: A device, system, and method for optically evaluating and treating or ablating tissue. Specifically, device, system, and method allow for the optical and/or electrical evaluation of tissue at the same location(s) at which ablation or treatment or ablation energy is delivered. This allows for a more accurate evaluation of lesion formation and tissue condition before, during, and/or after a treatment or ablation procedure. In one embodiment, a device for performing a medical procedure includes an elongate body including a proximal portion, a distal portion having a distal end, and a longitudinal axis, and a distal tip electrode at the elongate body distal end, the tip electrode being optically transparent and electrically conductive. The device may also include optical windows in the elongate body aligned with one or more transparent lateral electrodes for optically interrogating tissue and/or for delivering treatment or ablation energy to tissue.
    Type: Application
    Filed: February 1, 2021
    Publication date: May 20, 2021
    Inventors: Gonzalo Martinez, Timothy G. Laske, Mark T. Stewart
  • Patent number: 10945625
    Abstract: The present invention relates to a method, device, and system for improved mapping and/or ablation of a tissue. The device may generally include an elongate body and a distal assembly affixed to the elongate body that includes a treatment electrode having a conductive mapping region and a selectively conductive ablation region that is conductive of high-frequency current and substantially non-conductive of low-frequency current. Alternatively, the device may generally include a treatment electrode having a conductive mapping or ablation region and a region that is coated with an electrically insulated but thermally conductive layer.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: March 16, 2021
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Mark T. Stewart, Mark Allen Benscoter, Jon Virgil Evans, Timothy G. Laske, Gonzalo Martinez
  • Patent number: 10939959
    Abstract: A device, system, and method for optically evaluating and treating or ablating tissue. Specifically, device, system, and method allow for the optical and/or electrical evaluation of tissue at the same location(s) at which ablation or treatment or ablation energy is delivered. This allows for a more accurate evaluation of lesion formation and tissue condition before, during, and/or after a treatment or ablation procedure. In one embodiment, a device for performing a medical procedure includes an elongate body including a proximal portion, a distal portion having a distal end, and a longitudinal axis, and a distal tip electrode at the elongate body distal end, the tip electrode being optically transparent and electrically conductive. The device may also include optical windows in the elongate body aligned with one or more transparent lateral electrodes for optically interrogating tissue and/or for delivering treatment or ablation energy to tissue.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: March 9, 2021
    Assignee: Medtronic, Inc.
    Inventors: Gonzalo Martinez, Timothy G. Laske, Mark T. Stewart
  • Publication number: 20210038380
    Abstract: A stented valve including a generally tubular stent structure that has a longitudinal axis, first and second opposite ends, a plurality of commissure support structures spaced from the first and second ends and extending generally parallel to the longitudinal axis, at least one structural wire positioned between each two adjacent commissure support structures, and at least one wing portion extending from two adjacent commissure support structures and toward one of the first and second ends of the stent structure. The stented valve further includes a valve structure attached within the generally tubular stent structure to the commissure support structures.
    Type: Application
    Filed: October 9, 2020
    Publication date: February 11, 2021
    Inventors: Charles Tabor, Carol E. Eberhardt, Timothy G. Laske, Timothy R. Ryan, Joseph C. Morrow, Tammy Y. Tam, Brian A. Glynn, Anne L. Brody Rubin, Michael J. Tuchek
  • Patent number: 10820993
    Abstract: A stented valve including a generally tubular stent structure that has a longitudinal axis, first and second opposite ends, a plurality of commissure support structures spaced from the first and second ends and extending generally parallel to the longitudinal axis, at least one structural wire positioned between each two adjacent commissure support structures, and at least one wing portion extending from two adjacent commissure support structures and toward one of the first and second ends of the stent structure. The stented valve further includes a valve structure attached within the generally tubular stent structure to the commissure support structures.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: November 3, 2020
    Assignee: Medtronic, Inc.
    Inventors: Charles Tabor, Carol E. Eberhardt, Timothy G. Laske, Timothy R. Ryan, Joseph C. Morrow, Tammy Y. Tam, Brian A. Glynn, Anne L. Brody Rubin, Michael J. Tuchek
  • Publication number: 20200330225
    Abstract: A compressible and expandable stent assembly for implantation in a body lumen such as a mitral valve, the stent assembly including at least one stent barrel that is shaped and sized so that it allows for normal operation of adjacent heart structures. One or more stent barrels can be included in the stent assembly, where one or more of the stent barrels can include a cylinder with a tapered edge.
    Type: Application
    Filed: July 7, 2020
    Publication date: October 22, 2020
    Inventors: Thierry Mesana, Timothy G. Laske, Alexander Hill, Timothy Ryan, Allen Tower
  • Patent number: 10736737
    Abstract: A compressible and expandable stent assembly for implantation in a body lumen such as a mitral valve, the stent assembly including at least one stent barrel that is shaped and sized so that it allows for normal operation of adjacent heart structures. One or more stent barrels can be included in the stent assembly, where one or more of the stent barrels can include a cylinder with tapered edge.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: August 11, 2020
    Assignee: Medtronic, Inc.
    Inventors: Thierry Mesana, Timothy G. Laske, Alexander J. Hill, Timothy R. Ryan