Method and system for nodal rhythm detection and treatment
AssigneeMedtronic, Inc.
InventorsMattias Rouw, Gustaaf A. P. Stoop
Life of this patent
Estimating the term…
Abstract
A method and system for nodal rhythm detection and treatment is provided. Detecting consecutive atrial events within a nodal activity window around ventricular events identifies nodal rhythm. Nodal rhythm is treated by calculating and applying a new atrial escape interval adjusted by the interval between the atrial and ventricular events.
Claims23
A method for nodal rhythm detection and delivery of therapy for a mammalian heart, comprising:
- determining whether an atrial event precedes a ventricular event;
- counting the consecutive times atrial events occur less than a first time limit before the ventricular event, if the atrial event precedes the ventricular event;
- counting the consecutive times atrial events occur less than a second time limit after the ventricular event, if the atrial event follows the ventricular event;
- and
- delivering therapy for nodal rhythm if the number of times consecutive atrial events occur within a time period between the first time limit before a ventricular event and the second time limit after a ventricular event is greater than a nodal treatment activation constant.
An implantable medical system for delivering therapy to a mammalian heart, comprising:
- means for determining whether an atrial even precedes a ventricular event;
- means for counting the consecutive times atrial events occur less than a first time limit before the ventricular event, if the atrial event precedes the ventricular event;
- means for counting the consecutive times atrial events occur less than a second time limit after the ventricular event, if the atrial event follows the ventricular event;
- and
- means for delivering the therapy for nodal rhythm if the number of times consecutive atrial events occur within a time period between the first time limit before a ventricular event and the second time limit after a ventricular event is greater than a nodal treatment activation constant.
A computer usable medium storing computer readable program code having a program for nodal rhythm detection and treatment for a mammalian heart, comprising:
- computer readable program code for determining whether an atrial event precedes a ventricular event;
- computer readable program code for counting the consecutive times atrial events occur less than a first time limit before the ventricular event, if the atrial event precedes the ventricular event;
- computer readable program code for counting the consecutive times atrial events occur less than a second time limit after the ventricular event, if the atrial event follows the ventricular event;
- and
- computer readable program code for delivering therapy for nodal rhythm if the number of times consecutive atrial events occur within a time period between the first time limit before a ventricular event and the second time limit after a ventricular event is greater than a nodal treatment activation constant.
Dependencies are inferred from the claim text.