Patents by Inventor DAVID ROY AXNESS

DAVID ROY AXNESS 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: 11273314
    Abstract: A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method offers guidance throughout a cardiac rescue protocol involving both defibrillation shocks and CPR that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: March 15, 2022
    Assignee: Koninklijke Philips N.V.
    Inventors: Stacy Earl Gehman, James Knox Russell, Christopher William Fleming, Dawn Blilie Jorgenson, David Roy Axness
  • Patent number: 11197631
    Abstract: A defibrillator (AED) and method for using a defibrillator using two different ECG analysis algorithms which work sequentially to improve the accuracy of AED shock decisions. A first algorithm, such as (ART), is particularly suited for analysis in the presence of CPR periods. A second algorithm, such as (PAS), is particularly suited for analysis during hands-off periods. The AED switches algorithms depending on the period and on the current analysis of the cardiac rhythm. The inventions thus provide an optimized ECG analysis scheme in a manner that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: December 14, 2021
    Assignee: Koninklijke Philips N.V.
    Inventors: Chenguang Liu, Stacy Earl Gehman, James Knox Russell, Christopher William Fleming, Dawn Blilie Jorgenson, David Roy Axness, Jeffrey Martin Boschee
  • Publication number: 20200139143
    Abstract: A defibrillator (AED) and method for using a defibrillator using two different ECG analysis algorithms which work sequentially to improve the accuracy of AED shock decisions. A first algorithm, such as (ART), is particularly suited for analysis in the presence of CPR periods. A second algorithm, such as (PAS), is particularly suited for analysis during hands-off periods. The AED switches algorithms depending on the period and on the current analysis of the cardiac rhythm. The inventions thus provide an optimized ECG analysis scheme in a manner that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Application
    Filed: January 8, 2020
    Publication date: May 7, 2020
    Inventors: CHENGUANG LIU, STACY EARL GEHMAN, JAMES KNOX RUSSELL, CHRISTOPHER WILLIAM FLEMING, DAWN BLILIE JORGENSON, DAVID ROY AXNESS, JEFFREY MARTIN BOSCHEE
  • Patent number: 10561853
    Abstract: A defibrillator (AED) and method for using a defibrillator using two different ECG analysis algorithms which work sequentially to improve the accuracy of AED shock decisions. A first algorithm, such as (ART), is particularly suited for analysis in the presence of CPR periods. A second algorithm, such as (PAS), is particularly suited for analysis during hands-off periods. The AED switches algorithms depending on the period and on the current analysis of the cardiac rhythm. The inventions thus provide an optimized ECG analysis scheme in a manner that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: February 18, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chenguang Liu, Stacy Earl Gehman, James Knox Russell, Christopher William Fleming, Dawn Blilie Jorgenson, David Roy Axness, Jeffrey Martin Boschee
  • Patent number: 10537745
    Abstract: A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method provides both of a continuous and scheduled mode of operation for interleaving periods of CPR with electrotherapy, in a manner that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibriUation, and reduced transition times between CPR and electrotherapy.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 21, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chenguang Liu, Stacy Earl Gehman, James Knox Russell, Christopher William Fleming, Dawn Blilie Jorgenson, David Roy Axness, Jeffrey Martin Boschee
  • Publication number: 20190329058
    Abstract: A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method offers guidance throughout a cardiac rescue protocol involving both defibrillation shocks and CPR that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Application
    Filed: May 16, 2019
    Publication date: October 31, 2019
    Inventors: STACY EARL GEHMAN, JAMES KNOX RUSSELL, CHRISTOPHER WILLIAM FLEMING, DAWN BLILIE JORGENSON, DAVID ROY AXNESS
  • Patent number: 10335604
    Abstract: A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method offers guidance throughout a cardiac rescue protocol involving both defibrillation shocks and CPR that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: July 2, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Stacy Earl Gehman, James Knox Russell, Christopher William Fleming, Dawn Blilie Jorgenson, David Roy Axness
  • Patent number: 10238881
    Abstract: A defibrillator (100) and method (300) are described having an improved automatic activation feature. The improvement comprises sensing a pattern of events which indicates that repeated activations are inadvertent, and thus are unnecessarily depleting the battery. The defibrillator then disables the automatic activation circuit (210) feature. Then, the sensing of a manual defibrillator operation may trigger a re-enablement of the automatic activation feature.
    Type: Grant
    Filed: March 29, 2014
    Date of Patent: March 26, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: David Roy Axness
  • Publication number: 20180001100
    Abstract: A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method offers guidance throughout a cardiac rescue protocol involving both defibrillation shocks and CPR that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Application
    Filed: December 9, 2015
    Publication date: January 4, 2018
    Inventors: STACY EARL GEHMAN, JAMES KNOX RUSSELL, CHRISTOPHER WILLIAM FLEMING, DAWN BLILIE JORGENSON, DAVID ROY AXNESS
  • Publication number: 20170361121
    Abstract: A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method provides both of a continuous and scheduled mode of operation for interleaving periods of CPR with electrotherapy, in a manner that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 21, 2017
    Inventors: CHENGUANG LIU, STACY EARL GEHMAN, JAMES KNOX RUSSELL, CHRISTOPHER WILLIAM FLEMING, DAWN BLILIE JORGENSON, DAVID ROY AXNESS, JEFFREY MARTIN BOSCHEE
  • Publication number: 20170361118
    Abstract: A defibrillator (AED) using two different ECG analysis algorithms which work sequentially to improve the accuracy of AED shock decisions. A first algorithm, such as (ART), is particularly suited for analysis in the presence of CPR periods. A second algorithm, such as (PAS), is particularly suited for analysis during hands-off periods. The AED switches algorithms depending on the period and on the current analysis of the cardiac rhythm. The inventions thus provide an optimized ECG analysis scheme in a manner that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 21, 2017
    Inventors: CHENGUANG LIU, STACY EARL GEHMAN, JAMES KNOX RUSSELL, CHRISTOPHER WILLIAM FLEMING, DAWN BLILIE JORGENSON, DAVID ROY AXNESS, JEFFREY MARTIN BOSCHEE
  • Publication number: 20160045753
    Abstract: A defibrillator (100) and method (300) are described having an improved automatic activation feature. The improvement comprises sensing a pattern of events which indicates that repeated activations are inadvertent, and thus are unnecessarily depleting the battery. The defibrillator then disables the automatic activation circuit (210) feature. Then, the sensing of a manual defibrillator operation may trigger a re-enablement of the automatic activation feature.
    Type: Application
    Filed: March 29, 2014
    Publication date: February 18, 2016
    Inventor: DAVID ROY AXNESS