Patents by Inventor Scott W. Davie

Scott W. Davie 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).

  • Patent number: 10786296
    Abstract: A device, method, and system for thermally affecting tissue. The device may generally include an elongate body, an actuation element slidably disposed within the elongate body, a balloon defining an interior chamber, a proximal neck, and a distal neck, the first neck being coupled to the distal portion of the elongate body and the second neck being coupled to the distal portion of the actuation element, retraction of the actuation element within the elongate body causing the treatment element to transition from a first configuration to a second configuration. The distal neck may be located external to the interior chamber in the first configuration and within the interior chamber in the second configuration. The device may also include a fluid injection element that is transitionable to an expanded configuration when the balloon is inflated, thereby enhancing the cooling capacity of the balloon.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 29, 2020
    Assignee: Medtronic CryoCath LP
    Inventors: Jean-Pierre Lalonde, Scott W. Davie
  • Patent number: 10039502
    Abstract: A method of mapping electrophysiological information, including receiving imaging information for a tissue region; receiving a monophasic action potential signal from the tissue region; assigning a value corresponding to a depolarization segment of the monophasic action potential signal; receiving location information associated with the monophasic action potential signal; and generating an image based on the imaging information, the assigned value, and the location information.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: August 7, 2018
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Mark T. Stewart, Scott W. Davie, Giles Desrochers
  • Publication number: 20180071005
    Abstract: A device, method, and system for thermally affecting tissue. The device may generally include an elongate body, an actuation element slidably disposed within the elongate body, a balloon defining an interior chamber, a proximal neck, and a distal neck, the first neck being coupled to the distal portion of the elongate body and the second neck being coupled to the distal portion of the actuation element, retraction of the actuation element within the elongate body causing the treatment element to transition from a first configuration to a second configuration. The distal neck may be located external to the interior chamber in the first configuration and within the interior chamber in the second configuration. The device may also include a fluid injection element that is transitionable to an expanded configuration when the balloon is inflated, thereby enhancing the cooling capacity of the balloon.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 15, 2018
    Inventors: Jean-Pierre LALONDE, Scott W. DAVIE
  • Patent number: 9861423
    Abstract: A device, system, and method for enhancing cooling uniformity and efficiency of cryogenic fluids and providing a treatment element the shape of which can be adjusted for multiple purposes. The device may include a balloon catheter and fluid dispersion element, the fluid dispersion element directing the flow of coolant from a fluid injection element the interior wall of the balloon. The method of changing the shape of the treatment element may include retracting and extending a shaft to which the distal neck of a balloon is coupled, so that the balloon goes from a first shape to a second shape.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: January 9, 2018
    Assignee: Medtronic CryoCath LP
    Inventors: Jean-Pierre Lalonde, Scott W. Davie, Dan Wittenberger
  • Patent number: 9855089
    Abstract: A device, method, and system for thermally affecting tissue. The device may generally include an elongate body, an actuation element slidably disposed within the elongate body, a balloon defining an interior chamber, a proximal neck, and a distal neck, the first neck being coupled to the distal portion of the elongate body and the second neck being coupled to the distal portion of the actuation element, retraction of the actuation element within the elongate body causing the treatment element to transition from a first configuration to a second configuration. The distal neck may be located external to the interior chamber in the first configuration and within the interior chamber in the second configuration. The device may also include a fluid injection element that is transitionable to an expanded configuration when the balloon is inflated, thereby enhancing the cooling capacity of the balloon.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: January 2, 2018
    Assignee: Medtronic CryoCath LP
    Inventors: Jean-Pierre Lalonde, Scott W. Davie
  • Publication number: 20160074090
    Abstract: A device, system, and method for enhancing cooling uniformity and efficiency of cryogenic fluids and providing a treatment element the shape of which can be adjusted for multiple purposes. The device may include a balloon catheter and fluid dispersion element, the fluid dispersion element directing the flow of coolant from a fluid injection element the interior wall of the balloon. The method of changing the shape of the treatment element may include retracting and extending a shaft to which the distal neck of a balloon is coupled, so that the balloon goes from a first shape to a second shape.
    Type: Application
    Filed: November 23, 2015
    Publication date: March 17, 2016
    Inventors: Jean-Pierre LALONDE, Scott W. DAVIE, Dan WITTENBERGER
  • Patent number: 9220556
    Abstract: A device, system, and method for enhancing cooling uniformity and efficiency of cryogenic fluids and providing a treatment element the shape of which can be adjusted for multiple purposes. The device may include a balloon catheter and fluid dispersion element, the fluid dispersion element directing the flow of coolant from a fluid injection element the interior wall of the balloon. The method of changing the shape of the treatment element may include retracting and extending a shaft to which the distal neck of a balloon is coupled, so that the balloon goes from a first shape to a second shape.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: December 29, 2015
    Assignee: Medtronic CryoCath LP
    Inventors: Jean-Pierre Lalonde, Scott W. Davie, Dan Wittenberger
  • Publication number: 20150265329
    Abstract: A device, method, and system for thermally affecting tissue. The device may generally include an elongate body, an actuation element slidably disposed within the elongate body, a balloon defining an interior chamber, a proximal neck, and a distal neck, the first neck being coupled to the distal portion of the elongate body and the second neck being coupled to the distal portion of the actuation element, retraction of the actuation element within the elongate body causing the treatment element to transition from a first configuration to a second configuration. The distal neck may be located external to the interior chamber in the first configuration and within the interior chamber in the second configuration. The device may also include a fluid injection element that is transitionable to an expanded configuration when the balloon is inflated, thereby enhancing the cooling capacity of the balloon.
    Type: Application
    Filed: April 17, 2014
    Publication date: September 24, 2015
    Applicant: Medtronic CryoCath LP
    Inventors: Jean-Pierre LALONDE, Scott W. DAVIE
  • Publication number: 20130281997
    Abstract: A method and system for treating ventricular tachycardia (VT) by ablating scarred myocardial tissue containing a reentrant VT circuit. The method generally includes measuring electrical activity at a plurality of sites within a heart, identifying an area of scarred myocardial tissue based at least in part on the electrical activity measurements, and ablating substantially all of the scarred area. The system generally includes a medical device having a distal end, a plurality of electrical conduction sensors coupled to the distal end, and a console in communication with the distal end of the device, the console including a computer with display. The computer may be programmed to identify optimal ablation sites within a target tissue and the location of an isthmus associated with a reentrant VT circuit within a target tissue, the identifications being based at least in part on the measurements of the electrical conduction sensors.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 24, 2013
    Applicant: MEDTRONIC CRYOCATH LP
    Inventor: Scott W. DAVIE
  • Publication number: 20130197499
    Abstract: A device, system, and method for enhancing cooling uniformity and efficiency of cryogenic fluids and providing a treatment element the shape of which can be adjusted for multiple purposes. The device may include a balloon catheter and fluid dispersion element, the fluid dispersion element directing the flow of coolant from a fluid injection element the interior wall of the balloon. The method of changing the shape of the treatment element may include retracting and extending a shaft to which the distal neck of a balloon is coupled, so that the balloon goes from a first shape to a second shape.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 1, 2013
    Applicant: MEDTRONIC CRYOCATH LP
    Inventors: Jean-Pierre LALONDE, Scott W. DAVIE, Dan WITTENBERGER
  • Patent number: 8380295
    Abstract: An implantable medical device system including a physiological sensor detects signal artifact in a signal waveform acquired by the sensor. Features of individual waveforms in the sensor signal are extracted. Sample waveforms are classified by expert observation into at least two classes including an artifact class. A distribution range for each of the extracted features from the sample waveforms is determined for each of the classes. Waveform classification criteria are established in response to the determined distribution ranges.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: February 19, 2013
    Assignee: Medtronic, Inc.
    Inventors: Saul E. Greenhut, Mustafa Karamanoglu, Karen J. Kleckner, Tommy D. Bennett, Scott W. Davie
  • Publication number: 20120265084
    Abstract: A method of mapping electrophysiological information, including receiving imaging information for a tissue region; receiving a monophasic action potential signal from the tissue region; assigning a value corresponding to a depolarization segment of the monophasic action potential signal; receiving location information associated with the monophasic action potential signal; and generating an image based on the imaging information, the assigned value, and the location information.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 18, 2012
    Applicant: MEDTRONIC ABLATION FRONTIERS LLC
    Inventors: Mark T. STEWART, Scott W. DAVIE, Giles DESROCHERS
  • Publication number: 20110201952
    Abstract: A method and apparatus for sensing improvement using pressure data. The method and apparatus may be used in an implantable medical device to confirm that an EGM event signifies a true mechanical cardiac activity and not just electrical oversensing. The mechanical activity may be used to create a mechanical marker channel in the implantable medical device.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 18, 2011
    Applicant: Medtronic, Inc.
    Inventors: YONG K. CHO, TERESA A. WHITMAN, MARK L. BROWN, SCOTT W. DAVIE, KAREN J. KLECKNER, CHARLES R. GORDON
  • Publication number: 20110105927
    Abstract: An implantable medical device system including a physiological sensor detects signal artifact in a signal waveform acquired by the sensor. Features of individual waveforms in the sensor signal are extracted. Sample waveforms are classified by expert observation into at least two classes including an artifact class. A distribution range for each of the extracted features from the sample waveforms is determined for each of the classes. Waveform classification criteria are established in response to the determined distribution ranges.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Inventors: Saul E. Greenhut, Mustafa Karamanoglu, Karen J. Kleckner, Tommy D. Bennett, Scott W. Davie
  • Patent number: 7890162
    Abstract: Method and apparatus for sensing improvement using pressure data. The method and apparatus may be used in an implantable medical device to confirm that an EGM event signifies a true mechanical cardiac activity and not just electrical oversensing. The mechanical activity may be used to create a mechanical marker channel in the implantable medical device.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: February 15, 2011
    Assignee: Medtronic, Inc.
    Inventors: Yong K. Cho, Teresa A. Whitman, Mark L. Brown, Scott W. Davie, Karen J. Kleckner, Charles R. Gordon
  • Publication number: 20100030302
    Abstract: A system for displaying trended data retrieved from a medical device comprising a medical device which monitors and stores trended patient data, a data center, and an intermediate data relay device. The intermediate device receives stored trended patient data from the medical device and uploads the data to the data center. The data center merges the uploaded data with patient data obtained during previous data uploads. Clinicians can access the uploaded and merged patient using an interactive web page which allows the clinicians to seamlessly view the data.
    Type: Application
    Filed: July 30, 2008
    Publication date: February 4, 2010
    Applicant: MEDTRONIC, INC.
    Inventors: Paul A. Blowers, Bohdan O. Washchuk, Scott W. Davie, Laurie K. Schumacher, Keith Florance, Joel R. Lauer, JoAnn Abraham, James E. Willenbring
  • Patent number: 7524292
    Abstract: A system and method for monitoring respiration including sensing a signal that varies with respiration, deriving a respiration parameter, applying criteria for detecting a respiration disturbance and determining one or more respiratory disturbance metrics. The system preferably includes an implantable sensor with an associated implantable medical device such that chronic respiration monitoring is possible. The implantable medical device may execute methods for detecting and measuring respiratory disturbances or may store data to be transferred to an external device for detecting and measuring respiratory disturbances. Respiratory disturbance detection may trigger a responsive action such as physiological data storage, a change in therapy delivery, or a clinician warning. Assessment of cardiac function may be made based on metrics of respiratory disturbances or a measure of circulatory delay time following detection of a respiratory disturbance.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: April 28, 2009
    Assignee: Medtronic, Inc.
    Inventors: Yong K. Cho, Steven L. Ning, Luc R. Mongeon, Scott W. Davie, Todd J. Sheldon, Mark K. Erickson, H. Toby Markowitz
  • Publication number: 20080269627
    Abstract: Method and apparatus for sensing improvement using pressure data. The method and apparatus may be used in an implantable medical device to confirm that an EGM event signifies a true mechanical cardiac activity and not just electrical oversensing. The mechanical activity may be used to create a mechanical marker channel in the implantable medical device.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 30, 2008
    Inventors: Yong K. Cho, Teresa A. Whitman, Mark L. Brown, Scott W. Davie, Karen J. Kleckner, Charles R. Gordon
  • Patent number: 7160252
    Abstract: A system and method for monitoring respiration including sensing a signal that varies with respiration, deriving a respiration parameter, applying criteria for detecting a respiration disturbance and determining one or more respiratory disturbance metrics. The system preferably includes an implantable sensor with an associated implantable medical device such that chronic respiration monitoring is possible. The implantable medical device may execute methods for detecting and measuring respiratory disturbances or may store data to be transferred to an external device for detecting and measuring respiratory disturbances. Respiratory disturbance detection may trigger a responsive action such as physiological data storage, a change in therapy delivery, or a clinician warning. Assessment of cardiac function may be made based on metrics of respiratory disturbances or a measure of circulatory delay time following detection of a respiratory disturbance.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: January 9, 2007
    Assignee: Medtronic, Inc.
    Inventors: Yong K. Cho, Steven L. Ning, Luc R. Mongeon, Scott W. Davie, Todd J. Sheldon, Mark K. Erickson, H. Toby Markowitz
  • Publication number: 20040134496
    Abstract: A system and method for monitoring respiration including sensing a signal that varies with respiration, deriving a respiration parameter, applying criteria for detecting a respiration disturbance and determining one or more respiratory disturbance metrics. The system preferably includes an implantable sensor with an associated implantable medical device such that chronic respiration monitoring is possible. The implantable medical device may execute methods for detecting and measuring respiratory disturbances or may store data to be transferred to an external device for detecting and measuring respiratory disturbances. Respiratory disturbance detection may trigger a responsive action such as physiological data storage, a change in therapy delivery, or a clinician warning. Assessment of cardiac function may be made based on metrics of respiratory disturbances or a measure of circulatory delay time following detection of a respiratory disturbance.
    Type: Application
    Filed: April 21, 2003
    Publication date: July 15, 2004
    Inventors: Yong K. Cho, Steven L. Ning, Luc R. Mongeon, Scott W. Davie, Todd J. Sheldon, Mark K. Erickson, H. Toby Markowitz