Patents by Inventor Michael James Dufresne

Michael James Dufresne 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: 11185700
    Abstract: Systems and methods for monitoring and treating patients with heart failure (HF) are discussed. The system may sense cardiac signals, and receives information about patient physiological or functional conditions. A stimulation parameter table that includes recommended values of atrioventricular delay (AVD) or other timing parameters maybe created at a multitude of patient physiological or functional conditions. The system may periodically reassess patient physiological or functional conditions. A therapy programmer circuit may dynamically switch between left ventricular-only pacing and biventricular pacing, or switch between single site pacing and multisite pacing based on the patient condition. The therapy programmer circuit may adjust AVD and other timing parameters using the cardiac signal input and the stored stimulation parameter table. A HF therapy may be delivered according to the determined stimulation site, stimulation mode, and the stimulation timing.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: November 30, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: David J. Ternes, Yinghong Yu, Jason Humphrey, David L. Perschbacher, Michael James Dufresne, Adam MacEwen, Keith L. Herrmann
  • Patent number: 11040207
    Abstract: Systems and methods for monitoring and treating patients with heart failure (HF) are discussed. The system may sense cardiac signals, and receives information about patient physiological or functional conditions. A stimulation parameter table that includes recommended values of atrioventricular delay (AVD) or other timing parameters maybe created at a multitude of patient physiological or functional conditions. The system may periodically reassess patient physiological or functional conditions. A therapy programmer circuit may dynamically switch between left ventricular-only pacing and biventricular pacing, or switch between single site pacing and multisite pacing based on the patient condition. The therapy programmer circuit may adjust AVD and other timing parameters using the cardiac signal input and the stored stimulation parameter table. A HF therapy may be delivered according to the determined stimulation site, stimulation mode, and the stimulation timing.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 22, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: David J. Ternes, Yinghong Yu, Jason Humphrey, David L. Perschbacher, Michael James Dufresne, Adam MacEwen, Keith L. Herrmann
  • Publication number: 20190083789
    Abstract: Systems and methods for managing heart failure are described. The system receives physiological information including a first HS signal corresponding to paced ventricular contractions and a second HS signal corresponding to intrinsic ventricular contractions. The system detects worsening heart failure (WHF) using the received physiological information. A signal analyzer circuit can generate a paced HS metric from the first HS signal and a sensed HS metric from the second HS signal, and determine a concordance indicator between the paced and the sensed HS metrics. In response to the detected WHF, the system can use the concordance indicator to generate a therapy adjustment indicator for adjusting electrostimulation therapy, or a worsening cardiac contractility indicator indicating the detected WHF is attributed to degrading myocardial contractility.
    Type: Application
    Filed: August 28, 2018
    Publication date: March 21, 2019
    Inventors: Pramodsingh Hirasingh Thakur, Jason Humphrey, David J. Ternes, Qi An, Krzysztof Z. Siejko, Michael James Dufresne, Yinghong Yu
  • Publication number: 20180361150
    Abstract: Systems and methods for monitoring and treating patients with heart failure (HF) are discussed. The system may sense cardiac signals, and receives information about patient physiological or functional conditions. A stimulation parameter table that includes recommended values of atrioventricular delay (AVD) or other timing parameters maybe created at a multitude of patient physiological or functional conditions. The system may periodically reassess patient physiological or functional conditions. A therapy programmer circuit may dynamically switch between left ventricular-only pacing and biventricular pacing, or switch between single site pacing and multisite pacing based on the patient condition. The therapy programmer circuit may adjust AVD and other timing parameters using the cardiac signal input and the stored stimulation parameter table. A HF therapy may be delivered according to the determined stimulation site, stimulation mode, and the stimulation timing.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 20, 2018
    Inventors: David J. Ternes, Yinghong Yu, Jason Humphrey, David L. Perschbacher, Michael James Dufresne, Adam MacEwen, Keith L. Herrmann
  • Publication number: 20180361161
    Abstract: Systems and methods for monitoring and treating patients with heart failure (HF) are discussed. The system may sense cardiac signals, and receives information about patient physiological or functional conditions. A stimulation parameter table that includes recommended values of atrioventricular delay (AVD) or other timing parameters maybe created at a multitude of patient physiological or functional conditions. The system may periodically reassess patient physiological or functional conditions. A therapy programmer circuit may dynamically switch between left ventricular-only pacing and biventricular pacing, or switch between single site pacing and multisite pacing based on the patient condition. The therapy programmer circuit may adjust AVD and other timing parameters using the cardiac signal input and the stored stimulation parameter table. A HF therapy may be delivered according to the determined stimulation site, stimulation mode, and the stimulation timing.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 20, 2018
    Inventors: David J. Ternes, Yinghong Yu, Jason Humphrey, David L. Perschbacher, Michael James Dufresne, Adam MacEwen, Keith L. Herrmann
  • Publication number: 20180361162
    Abstract: Systems and methods for monitoring and treating patients with heart failure (HF) are discussed. The system may sense cardiac signals, and receives information about patient physiological or functional conditions. A stimulation parameter table that includes recommended values of atrioventricular delay (AVD) or other timing parameters maybe created at a multitude of patient physiological or functional conditions. The system may periodically reassess patient physiological or functional conditions. A therapy programmer circuit may dynamically switch between left ventricular-only pacing and biventricular pacing, or switch between single site pacing and multisite pacing based on the patient condition. The therapy programmer circuit may adjust AVD and other timing parameters using the cardiac signal input and the stored stimulation parameter table. A HF therapy may be delivered according to the determined stimulation site, stimulation mode, and the stimulation timing.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 20, 2018
    Inventors: David J. Ternes, Yinghong Yu, Jason Humphrey, David L. Perschbacher, Michael James Dufresne, Adam MacEwen, Keith L. Herrmann