Patents by Inventor Alfonso Aranda Hernandez

Alfonso Aranda Hernandez 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).

  • CARDIAC SIGNAL T-WAVE DETECTION
    Publication number: 20190365267
    Abstract: An example device for detecting one or more parameters of a cardiac signal is disclosed herein. The device includes one or more electrodes and sensing circuitry configured to sense a cardiac signal via the one or more electrodes. The device further includes processing circuitry configured to determine a representative signal based on the cardiac signal, the representative signal having a single polarity, and determine an end of a T-wave of the cardiac signal based on an area under the representative signal.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 5, 2019
    Inventors: Alfonso Aranda Hernandez, Berthold Stegemann, Marc A. Vos, David J. Sprenkeler
  • Electrogram-based control of cardiac resynchronization therapy
    Patent number: 10272248
    Abstract: In some examples, controlling delivery of CRT includes delivering ventricular pacing according to a sequence of different values of at least one of A-V delay or V-V delay, and acquiring one or more electrograms from respective vectors. For each of the different values of the at least one of A-V delay or V-V delay, at least one of a QRS amplitude or a QRS area may be determined based on the one or more electrograms, and a target change in QRS amplitude or QRS area between adjacent ones of the values of the at least one of A-V delay or V-V delay of the sequence may be identified. In response to the identification of the target change, the implantable medical device may deliver the ventricular pacing at a value of the at least one of A-V delay or V-V delay determined based on the identification to provide CRT.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: April 30, 2019
    Assignees: Medtronic, Inc., Universiteit Maastricht, Academisch Ziekenhuis Maastricht
    Inventors: Elien B. Engels, Kevin Vernooy, Alfonso Aranda Hernandez, Frits W. Prinzen, Jeffrey M. Gillberg
  • ELECTROGRAM-BASED CONTROL OF CARDIAC RESYNCHRONIZATION THERAPY
    Publication number: 20170340887
    Abstract: In some examples, controlling delivery of CRT includes delivering ventricular pacing according to a sequence of different values of at least one of A-V delay or V-V delay, and acquiring one or more electrograms from respective vectors. For each of the different values of the at least one of A-V delay or V-V delay, at least one of a QRS amplitude or a QRS area may be determined based on the one or more electrograms, and a target change in QRS amplitude or QRS area between adjacent ones of the values of the at least one of A-V delay or V-V delay of the sequence may be identified. In response to the identification of the target change, the implantable medical device may deliver the ventricular pacing at a value of the at least one of A-V delay or V-V delay determined based on the identification to provide CRT.
    Type: Application
    Filed: May 31, 2017
    Publication date: November 30, 2017
    Inventors: Elien B. Engels, Kevin Vernooy, Alfonso Aranda Hernandez, Frits W. Prinzen, Jeffrey M. Gillberg
  • Method and Apparatus for Optimization of Cardiac Resynchronization Therapy Using Vectorcardiograms Derived from Implanted Electrodes
    Publication number: 20160367801
    Abstract: A cardiac resynchronization pacemaker and a method of adjusting the pacemaker. The method includes deriving a vectorcardiogram from implanted electrodes (D-VCG), analyzing the D-VCG, deriving optimal CRT pacing parameters from the analysis of the D-VCG, and adjusting the CRT pacemaker according to the derived parameters. The pacemaker may include a processor configured to perform the method.
    Type: Application
    Filed: February 1, 2016
    Publication date: December 22, 2016
    Inventors: Frits W. Prinzen, Elien Engels, Alfonso Aranda Hernandez
  • Method and apparatus for optimization of cardiac resynchronization therapy using vectorcardiograms derived from implanted electrodes
    Patent number: 9248294
    Abstract: A cardiac resynchronization pacemaker and a method of adjusting the pacemaker. The method includes deriving a vectorcardiogram from implanted electrodes (D-VCG), analyzing the D-VCG, deriving optimal CRT pacing parameters from the analysis of the D-VCG, and adjusting the CRT pacemaker according to the derived parameters. The pacemaker may include a processor configured to perform the method.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: February 2, 2016
    Assignee: Medtronic, Inc.
    Inventors: Frits W Prinzen, Elien Engels, Alfonso Aranda Hernandez
  • Method and Apparatus for Optimization of Cardiac Resynchronization Therapy Using Vectorcardiograms Derived from Implanted Electrodes
    Publication number: 20150073286
    Abstract: A cardiac resynchronization pacemaker and a method of adjusting the pacemaker. The method includes deriving a vectorcardiogram from implanted electrodes (D-VCG), analyzing the D-VCG, deriving optimal CRT pacing parameters from the analysis of the D-VCG, and adjusting the CRT pacemaker according to the derived parameters. The pacemaker may include a processor configured to perform the method.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Inventors: Frits W. Prinzen, Elien Engels, Alfonso Aranda Hernandez