Patents by Inventor Stephane Masse
Stephane Masse 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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Patent number: 11826108Abstract: A system and method for obtaining an OIS coordinate frame comprising an electronic control unit configured to determine a local 3D electric field loop, create a zero mean version of E(t) over a depolarization interval, compute an ? value at each of a plurality of time intervals, compute an initial estimate of ? from a cross product of E and the ? value for each of the plurality of time intervals, average the initial estimate of ? from each of the plurality of time for a best estimate of ?, determine a plurality of â(?) values and using the corresponding {circumflex over (n)}(?) values, compute a composite match score, and choose at least one best value for â and a best value for {circumflex over (n)}.Type: GrantFiled: March 12, 2021Date of Patent: November 28, 2023Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: D. Curtis Deno, Ram K. Balachandran, Stéphane Massé
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Publication number: 20230181084Abstract: A system and method for non-invasively detecting abnormal electrical propagation in the heart are disclosed. The system and method include an interface for receiving a pacing signal applied to a heart of a patient, the pacing signal comprising (i) a sequence of regular pacing stimuli shorter than the sinus-rate intervals, and (ii) one or more extra pacing stimuli at intervals that are shorter than the regular pacing stimuli, a processor to assess the envelope of a body-surface ECG component after the regular pacing stimuli, assess the envelope of a body surface ECG component after the one or more extra pacing stimuli, and compare the assessed component after the extra pacing stimuli to the assessed component after the regular pacing stimuli. The interface outputting the comparison as an indication of regions of arrhythmogenicity and ablation targets in the heart.Type: ApplicationFiled: December 9, 2022Publication date: June 15, 2023Applicants: Biosense Webster (Israel) Ltd., UNIVERSITY HEALTH NETWORKInventors: Tal Haim Bar-on, Meir Bar-Tal, Gal Hayam, Einat Shapira, Amir Ben-Dor, Kumaraswamy Nanthakumar, Stéphane Massé, Ahmed Niri
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Publication number: 20220369990Abstract: The disclosure relates generally to applications of Orientation Independent Sensing (OIS) and Omnipolar mapping Technology (OT) to various system, device and method embodiments as recited herein. Similarly, systems and methods suitable for supporting OIS and OT systems and methods are disclosed. Further, OIS and OT implementations that provide end user interfaces, diagnostic indicia and visual displays generated, in part, based on measured data or derived from measured data are also disclosed. Embodiments also describe applying optimization techniques to determine the greatest voltage difference of a local electric field associated with an electrode-based diagnostic procedure and a vector representation thereof. Various graphic user interface related features are also described to facilitate orientation and electrode clique signal display.Type: ApplicationFiled: June 30, 2022Publication date: November 24, 2022Inventors: Don Curtis Deno, Dennis J. Morgan, Joshua C. Bush, Kumaraswamy Nanthakumar, Stephane Masse, Karl Magtibay
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Patent number: 11406312Abstract: The disclosure relates generally to applications of Orientation Independent Sensing (OIS) and Omnipolar mapping Technology (OT) to various system, device and method embodiments as recited herein. Similarly, systems and methods suitable for supporting OIS and OT systems and methods are disclosed. Further, OIS and OT implementations that provide end user interfaces, diagnostic indicia and visual displays generated, in part, based on measured data or derived from measured data are also disclosed. Embodiments also describe applying optimization techniques to determine the greatest voltage difference of a local electric field associated with an electrode-based diagnostic procedure and a vector representation thereof. Various graphic user interface related features are also described to facilitate orientation and electrode clique signal display.Type: GrantFiled: June 18, 2020Date of Patent: August 9, 2022Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: Don Curtis Deno, Dennis J. Morgan, Joshua C. Bush, Kumaraswamy Nanthakumar, Stephane Masse, Karl Magtibay
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Publication number: 20210267693Abstract: A system and method for obtaining an OIS coordinate frame comprising an electronic control unit configured to determine a local 3D electric field loop, create a zero mean version of E(t) over a depolarization interval, compute an ? value at each of a plurality of time intervals, compute an initial estimate of ? from a cross product of E and the ? value for each of the plurality of time intervals, average the initial estimate of ? from each of the plurality of time for a best estimate of ?, determine a plurality of â(?) values and using the corresponding {circumflex over (n)}(?) values, compute a composite match score, and choose at least one best value for â and a best value for {circumflex over (n)}.Type: ApplicationFiled: March 12, 2021Publication date: September 2, 2021Inventors: D. Curtis Deno, Ram K. Balachandran, Stéphane Massé
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Patent number: 10980602Abstract: A system and method for obtaining an OIS coordinate frame comprising an electronic control unit configured to determine a local 3D electric field loop, create a zero mean version of E(t) over a depolarization interval, compute an ? value at each of a plurality of time intervals, compute an initial estimate of ? from a cross product of E and the ? value for each of the plurality of time intervals, average the initial estimate of ? from each of the plurality of time for a best estimate of ?, determine a plurality of â(?) values and using the corresponding {circumflex over (n)}(?) values, compute a composite match score, and choose at least one best value for â and a best value for {circumflex over (n)}.Type: GrantFiled: December 21, 2018Date of Patent: April 20, 2021Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: D. Curtis Deno, Ram K. Balachandran, Stéphane Massé
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Publication number: 20200315484Abstract: The disclosure relates generally to applications of Orientation Independent Sensing (OIS) and Omnipolar mapping Technology (OT) to various system, device and method embodiments as recited herein. Similarly, systems and methods suitable for supporting OIS and OT systems and methods are disclosed. Further, OIS and OT implementations that provide end user interfaces, diagnostic indicia and visual displays generated, in part, based on measured data or derived from measured data are also disclosed. Embodiments also describe applying optimization techniques to determine the greatest voltage difference of a local electric field associated with an electrode-based diagnostic procedure and a vector representation thereof. Various graphic user interface related features are also described to facilitate orientation and electrode clique signal display.Type: ApplicationFiled: June 18, 2020Publication date: October 8, 2020Inventors: Don Curtis Deno, Dennis J. Morgan, Joshua C. Bush, Kumaraswamy Nanthakumar, Stephane Masse, Karl Magtibay
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Patent number: 10758137Abstract: The disclosure relates generally to applications of Orientation Independent Sensing (OIS) and Omnipolar mapping Technology (OT) to various system, device and method embodiments as recited herein. Similarly, systems and methods suitable for supporting OIS and OT systems and methods are disclosed. Further, OIS and OT implementations that provide end user interfaces, diagnostic indicia and visual displays generated, in part, based on measured data or derived from measured data are also disclosed. Embodiments also describe applying optimization techniques to determine the greatest voltage difference of a local electric field associated with an electrode-based diagnostic procedure and a vector representation thereof. Various graphic user interface related features are also described to facilitate orientation and electrode clique signal display.Type: GrantFiled: April 13, 2018Date of Patent: September 1, 2020Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: Don Curtis Deno, Dennis J. Morgan, Joshua C. Bush, Kumaraswamy Nanthakumar, Stephane Masse, Karl Magtibay
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Publication number: 20190239960Abstract: A system and method for obtaining an OIS coordinate frame comprising an electronic control unit configured to determine a local 3D electric field loop, create a zero mean version of E(t) over a depolarization interval, compute an ? value at each of a plurality of time intervals, compute an initial estimate of ? from a cross product of E and the ? value for each of the plurality of time intervals, average the initial estimate of ? from each of the plurality of time for a best estimate of ?, determine a plurality of â(?) values and using the corresponding {circumflex over (n)}(?) values, compute a composite match score, and choose at least one best value for â and a best value for {circumflex over (n)}.Type: ApplicationFiled: December 21, 2018Publication date: August 8, 2019Inventors: D. Curtis Deno, Ram K. Balachandram, Stéphane Massé
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Patent number: 10194994Abstract: A system and method for obtaining an OIS coordinate frame comprising an electronic control unit configured to determine a local 3D electric field loop, create a zero mean version of E(t) over a depolarization interval, compute an ? value at each of a plurality of time intervals, compute an initial estimate of ? from a cross product of E and the ? value for each of the plurality of time intervals, average the initial estimate of ? from each of the plurality of time for a best estimate of ?, determine a plurality of â(?) values and using the corresponding {circumflex over (n)}(?) values, compute a composite match score, and choose at least one best value for â and a best value for {circumflex over (n)}.Type: GrantFiled: May 11, 2016Date of Patent: February 5, 2019Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: D. Curtis Deno, Ram K. Balachandran, Stéphane Massé
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Publication number: 20180296111Abstract: The disclosure relates generally to applications of Orientation Independent Sensing (OIS) and Omnipolar mapping Technology (OT) to various system, device and method embodiments as recited herein. Similarly, systems and methods suitable for supporting OIS and OT systems and methods are disclosed. Further, OIS and OT implementations that provide end user interfaces, diagnostic indicia and visual displays generated, in part, based on measured data or derived from measured data are also disclosed. Embodiments also describe applying optimization techniques to determine the greatest voltage difference of a local electric field associated with an electrode-based diagnostic procedure and a vector representation thereof. Various graphic user interface related features are also described to facilitate orientation and electrode clique signal display.Type: ApplicationFiled: April 13, 2018Publication date: October 18, 2018Inventors: Don Curtis Deno, Dennis J. Morgan, Joshua C. Bush, Kumaraswamy Nanthakumar, Stephane Masse, Karl Magtibay
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Patent number: 9662178Abstract: Various embodiments are described herein for a system and a method for identifying the arrhythmogenic circuit of a patient or subject. In one embodiment, the method comprises obtaining data for electrograms recorded at various locations of the heart while programmed ventricular pacing with extra stimuli was performed, obtaining decrement values for at least two different locations of the heart using the recorded electrograms, generating at least a portion of a decrement map using the decrement values, and identifying the arrhythmogenic circuit based on electrograms having significant decremental properties.Type: GrantFiled: May 16, 2014Date of Patent: May 30, 2017Assignee: UNIVERSITY HEALTH NETWORKInventors: Kumaraswamy Nanthakumar, Eugene Downar, Stephane Masse
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Publication number: 20160331471Abstract: A system and method for obtaining an OIS coordinate frame comprising an electronic control unit configured to determine a local 3D electric field loop, create a zero mean version of E(t) over a depolarization interval, compute an ? value at each of a plurality of time intervals, compute an initial estimate of ? from a cross product of E and the ? value for each of the plurality of time intervals, average the initial estimate of ? from each of the plurality of time for a best estimate of ?, determine a plurality of â(?) values and using the corresponding {circumflex over (n)}(?) values, compute a composite match score, and choose at least one best value for â and a best value for {circumflex over (n)}.Type: ApplicationFiled: May 11, 2016Publication date: November 17, 2016Inventors: D. Curtis Deno, Ram K. Balachandran, Stéphane Massé
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Publication number: 20160128785Abstract: Various embodiments are described herein for a system and a method for identifying the arrhythmogenic circuit of a patient or subject. In one embodiment, the method comprises obtaining data for electrograms recorded at various locations of the heart while programmed ventricular pacing with extra stimuli was performed, obtaining decrement values for at least two different locations of the heart using the recorded electrograms, generating at least a portion of a decrement map using the decrement values, and identifying the arrhythmogenic circuit based on electrograms having significant decremental properties.Type: ApplicationFiled: May 16, 2014Publication date: May 12, 2016Applicant: University Health NetworkInventors: Kumaraswamy Nanthakumar, Eugene Downar, Stephane Masse
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Publication number: 20080160370Abstract: Fuel cell modules usually have an inherently limited load slew rate, which is adequate for some applications but insufficient where close load following is desired. An example of where the inherent lack of dynamic response, of a typical fuel cell module, has proven to be insufficient is within a standalone AC power generation system in which the fuel cell module does not, or cannot, possibly, receive a priori knowledge of current demand changes by load. In contrast, the present invention aims to provide a current controller for use in a fuel cell system, a fuel cell system with adaptive current control and a method of operating a fuel cell system that employs an adaptive current controller that enables a relatively fast dynamic response to abrupt increases in current demand whilst also providing a controlled adjustment to the output current provided by a fuel cell module included in the system.Type: ApplicationFiled: July 12, 2005Publication date: July 3, 2008Applicant: Hydrogenics CorporationInventors: Stephane Masse, Ravi B. Gopal
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Patent number: 7148654Abstract: A system and method for monitoring cell voltages for a plurality of electrochemical cells connected in series forming a cell stack. The method includes dividing the cells into at least two cell groups, measuring the voltage across each cell group and estimating the minimum cell voltage for each group based on the average cell stack voltage and an estimated number of deficient cells in each group. The lowest minimum cell voltage for the entire cell stack is then determined.Type: GrantFiled: December 3, 2003Date of Patent: December 12, 2006Assignee: Hydrogenics CorporationInventors: Stephen Burany, Ravi B. Gopal, Norman A. Freeman, Stéphane Massé
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Publication number: 20060210850Abstract: Embodiments of the pertinent invention relates to apparatus, systems and methods for diagnostic testing of an electrochemical cell stack, such as a fuel cell stack or an electrolyzer cell stack. According to one embodiment, the apparatus comprises a multiplexer for switching current to one or more cells in the electrochemical cell stack, a voltage monitor for monitoring the voltage between the anode plate and the cathode plate of one or more cells, a power supply module for supplying power to the multiplexer and a gas supply module for supplying fuel gas and non-fuel gas to the electrochemical cell stack. The apparatus further comprises a control module electrically connected to and configured to control the multiplexer, the voltage monitor, the power supply module and the gas supply module to conduct automatic diagnostic testing of the electrochemical cell stack.Type: ApplicationFiled: March 17, 2005Publication date: September 21, 2006Inventors: Rami Abouatallah, Stephane Masse, Daren Pemberton
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Publication number: 20060210843Abstract: Embodiments of the present invention relate to multiplexing apparatus, systems and methods for use in diagnostic testing of an electrochemical cell stack, such as a fuel cell stack or an electrolyzer cell stack. According to one embodiment, the apparatus comprises a multiplexer for switching current to one or more cells in the electrochemical cell stack and a power supply module for supplying power to the multiplexer. The apparatus further comprises a control module electrically connected to and configured to control the multiplexer and the power supply module to supply current to individual cells or groups of cells during automatic diagnostic testing of the electrochemical cell stack. The multiplexer comprises a microprocessor and a plurality of switching circuits adapted to supply current or voltage from the power supply module to the cells.Type: ApplicationFiled: May 2, 2005Publication date: September 21, 2006Inventors: Stephane Masse, Rami Abouatallah
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Publication number: 20050215124Abstract: The invention provides a voltage monitoring system with a partially distributed electrical connector for connecting circuit components of the voltage monitoring system to one or more components associated with the plurality of electrochemical cells. The at least one partially distributed electrical connector comprises a connector for connecting with the circuit components, a unitary portion connected to the connector, a distributed portion having a first end connected to the unitary portion and a second end connected to the one or more components associated with the plurality of electrochemical cells, and, a plurality of conductors running from the connector to the second end of the distributed portion, the plurality of conductors being electrically isolated from one another. The distributed portion is flexible.Type: ApplicationFiled: January 19, 2005Publication date: September 29, 2005Inventors: Michael Vale, Bryn Epp, Stephane Masse, Nathaniel Joos
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Patent number: 6816797Abstract: A method and apparatus are provided for measuring impedance and voltage characteristics of cells of multi-cell electrochemical devices, for example a battery or a fuel cell stack. Voltages are measured across individual cells, or groups of cells. At the same time, a load is connected in series with the electrochemical device. Both the device for measuring the voltages and the load are controlled together, preferably by means of a controller, which can include some form of microprocessor. This enables the load to be controlled to provide a desired combination of DC and AC current characteristics. By setting appropriate DC and AC current characteristics, desired characteristics of the impedance of individual cells can be measured.Type: GrantFiled: March 29, 2002Date of Patent: November 9, 2004Assignee: Hydrogenics CorporationInventors: Norman A. Freeman, Stéphane Massé, Ravi B. Gopal