Patents by Inventor Jan D. Wald
Jan D. Wald 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: 8306619Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: GrantFiled: September 27, 2011Date of Patent: November 6, 2012Assignee: Cardiac Pacemakers, Inc.Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer
-
Publication number: 20120016433Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: ApplicationFiled: September 27, 2011Publication date: January 19, 2012Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer
-
Patent number: 8046068Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: GrantFiled: April 20, 2009Date of Patent: October 25, 2011Assignee: Cardiac Pacemakers, Inc.Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer
-
Publication number: 20090234400Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: ApplicationFiled: April 20, 2009Publication date: September 17, 2009Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer
-
Patent number: 7522956Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: GrantFiled: March 7, 2005Date of Patent: April 21, 2009Assignee: Cardiac Pacemakers, Inc.Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer
-
Patent number: 7113824Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: GrantFiled: November 13, 2001Date of Patent: September 26, 2006Assignee: Cardiac Pacemakers, Inc.Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer
-
Publication number: 20020107552Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: ApplicationFiled: November 13, 2001Publication date: August 8, 2002Applicant: Cardiac Pacemakers, Inc.Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer
-
Patent number: 6317632Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: GrantFiled: October 11, 2000Date of Patent: November 13, 2001Assignee: Cardiac Pacemakers, Inc.Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer
-
Patent number: 6151524Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: GrantFiled: August 18, 1999Date of Patent: November 21, 2000Assignee: Cardiac Pacemakers, Inc.Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer
-
Patent number: 5978707Abstract: A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.Type: GrantFiled: October 8, 1997Date of Patent: November 2, 1999Assignee: Cardiac Pacemakers, Inc.Inventors: David B. Krig, James O. Gilkerson, Robert D. Dreher, Jan D. Wald, William J. Linder, William L. Zimmer