Claims
- 1. A processor-based method for determining whether to deliver or to withhold a cardiac rhythm management therapy in response to the occurrence of atrial and ventricular events, comprising, in a dual chamber implantable pulse generator:
sensing cardiac depolarization events; determining a cardiac grammar based on the sensed events for a plurality of cardiac cycles; applying a priority-rule based logic set to the cardiac grammar to determine if each clause of a plurality of rules of said priority-rule based logic set is firing; and withholding a therapy or delivering the cardiac rhythm management based on a highest priority rule of the priority-rule based logic for which all clauses are firing.
- 2. A method according to claim 1, wherein the cardiac depolarization events comprise a plurality of atrial-based events and a plurality of ventricular-based events.
- 3. A method according to claim 1, wherein the cardiac rhythm management therapy includes at least a one of:
an atrial anti-arrhythmia-only therapy; a ventricular anti-arrhythmia-only therapy; a cardioversion therapy; a defibrillation therapy; an anti-tachycardia pacing therapy; an anti-arrhythmia therapy.
- 4. A method according to claim 3, wherein the anti-arrhythmia therapy comprises a one of:
a nerve stimulation therapy; or a drug administration therapy.
- 5. A method according to claim 3, wherein the anti-tachycardia pacing therapy further comprises:
a plurality of anti-tachycardia pacing therapies, wherein each one of said plurality of anti-tachycardia pacing therapies having a different operating parameter than the other of said anti-tachycardia pacing therapies
- 6. A method according to claim 3, wherein the defibrillation therapy further comprises:
a plurality of defibrillation therapies, wherein each of said plurality of defibrillation therapies is programmed to deliver a different amount of defibrillation energy.
- 7. A method according to claim 3, wherein the cardioversion therapy further comprises:
a plurality of cardioversion therapies, wherein each of said plurality of cardioversion therapies is programmed to deliver a different amount of cardioversion energy.
- 8. A method according to claim 6, further comprising:
in the event that a first defibrillation therapy does not terminate an arrhythmia, reconfirming the presence of an arrhythmia wherein defibrillation is an appropriate anti-arrhythmia therapy; and delivering an increased-energy defibrillation therapy, wherein said increased-energy defibrillation therapy comprises a one of the plurality of defibrillation therapies.
- 9. A method according to claim 6, further comprising:
in the event that a first cardioversion therapy does not terminate an arrhythmia, reconfirming the presence of an arrhythmia wherein cardioversion is an appropriate anti-arrhythmia therapy; and delivering an increased-energy cardioversion therapy, wherein said increased-energy cardioversion therapy comprises a one of the plurality of cardioversion therapies.
- 10. A computer readable media for storing instructions for determining whether to deliver or to withhold a cardiac rhythm management therapy in response to the occurrence of atrial and ventricular events, comprising, in a dual chamber implantable pulse generator:
instructions for sensing cardiac depolarization events; instructions for determining a cardiac grammar based on the sensed events for a plurality of cardiac cycles; instructions for applying a priority-rule based logic set to the cardiac grammar to determine if each clause of a plurality of rules of said priority-rule based logic set is firing; and instructions for withholding a therapy or delivering the cardiac rhythm management based on a highest priority rule of the priority-rule based logic for which all clauses are firing.
- 11. A medium according to claim 10, wherein the cardiac depolarization events comprise a plurality of atrial-based events and a plurality of ventricular-based events.
- 12. A medium according to claim 10, wherein the cardiac rhythm management therapy includes at least a one of:
an atrial anti-arrhythmia-only therapy; a ventricular anti-arrhythmia-only therapy; a cardioversion therapy; a defibrillation therapy; an anti-tachycardia pacing therapy; an anti-arrhythmia therapy.
- 13. A medium according to claim 12, wherein the anti-arrhythmia therapy comprises a one of:
a nerve stimulation therapy; or a drug administration therapy.
- 14. A medium according to claim 12, wherein the anti-tachycardia pacing therapy further comprises:
a plurality of anti-tachycardia pacing therapies, wherein each one of said plurality of anti-tachycardia pacing therapies having a different operating parameter than the other of said anti-tachycardia pacing therapies.
- 15. A system for determining whether to deliver or to withhold a cardiac rhythm management therapy in response to the occurrence of atrial and ventricular events, comprising, in a dual chamber implantable pulse generator:
means for sensing cardiac depolarization events; means for determining a cardiac grammar based on the sensed events for a plurality of cardiac cycles; means for applying a priority-rule based logic set to the cardiac grammar to determine if each clause of a plurality of rules of said priority-rule based logic set is firing; and means for withholding a therapy or delivering the cardiac rhythm management based on a highest priority rule of the priority-rule based logic for which all clauses are firing.
- 16. A system according to claim 15, wherein the cardiac depolarization events comprise a plurality of atrial-based events and a plurality of ventricular-based events.
- 17. A system according to claim 15, wherein the cardiac rhythm management therapy includes at least a one of:
an atrial anti-arrhythmia-only therapy; a ventricular anti-arrhythmia-only therapy; a cardioversion therapy; a defibrillation therapy; an anti-tachycardia pacing therapy; an anti-arrhythmia therapy.
- 18. A system according to claim 17, wherein the anti-arrhythmia therapy comprises a one of:
a nerve stimulation therapy; or a drug administration therapy.
- 19. A system according to claim 17, wherein the anti-tachycardia pacing therapy further comprises a plurality of anti-tachycardia pacing therapies, wherein each one of said plurality of anti-tachycardia pacing therapies having a different operating parameter than the other of said anti-tachycardia pacing therapies.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a divisional of U.S. patent application Ser. No. 10/283,634 filed Mar. 28, 2001 (now U.S. Pat. No. 6,XXX,XXX issued ______,__2004) which is a continuation of U.S. Pat. No. 6,178,350 filed Jan. 19, 2000 and a divisional of a continuation of prior application Ser. No. 09/047,649 filed Mar. 25, 1998 now U.S. Pat. No. 6,052,620, which is a continuation application of Ser. No. 08/895,342 filed Jul. 16, 1997, issued as U.S. Pat. No. 5,755,736, which is a file wrapper continuation of 08/649,145 filed May 14, 1996 (now abandoned).
Divisions (2)
|
Number |
Date |
Country |
Parent |
10283634 |
Oct 2002 |
US |
Child |
10810116 |
Mar 2004 |
US |
Parent |
09047649 |
Mar 1998 |
US |
Child |
10283634 |
Oct 2002 |
US |
Continuations (3)
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Number |
Date |
Country |
Parent |
09487189 |
Jan 2000 |
US |
Child |
10283634 |
Oct 2002 |
US |
Parent |
08895342 |
Jul 1997 |
US |
Child |
09047649 |
Mar 1998 |
US |
Parent |
08649145 |
May 1996 |
US |
Child |
08895342 |
Jul 1997 |
US |