His bundle control

• US 7,738,954 B1
• Filed: 04/22/2004
• Issued: 06/15/2010
• Est. Priority Date: 04/22/2004
• Status: Expired due to Fees

• Current Assignee: Pacesetter Incorporated (Abbott Laboratories)
• Original Assignee: Pacesetter Incorporated (Abbott Laboratories)
• Inventors: Koh, Steve, Kroll, Mark W.
• Primary Examiner(s): Layno; Carl H
• Assistant Examiner(s): HOLMES, REX R
• Application Number:
  US10/830,849
• Time in Patent Office: 2,245 Days
• Field of Search: 607/4, 607/5, 607/9, 607/14
• US Class Current: 607/9
• CPC Class Codes: A61N 1/36114 Cardiac control, e.g. by vagal stimulation stimulating the heart A61N1/362
• CPC Class Codes: A61N 1/368 comprising more than one electrode co-operating with different heart regions A61N1/3622, A61N1/3627 take precedence
• CPC Class Codes: A61N 1/3684 for stimulating the heart at multiple sites of the ventricle or the atrium
• CPC Class Codes: A61N 1/36842 Multi-site stimulation in the same chamber
• CPC Class Codes: A61N 1/36843 Bi-ventricular stimulation

Abstract

An exemplary controller includes an input for receiving information related to a signal of supraventricular origin, control logic to determine a control signal and an output to deliver the control signal to thereby actively filter the signal of supraventricular origin in the His bundle. Other exemplary methods, devices, systems, etc., are also disclosed.

Claims

1. A method comprising:

applying a control signal to or near the HIS bundle, to filter a signal of supraventricular origin in the His bundle wherein the application of the control signal prevents the signal of supraventricular origin from stimulating the ventricles and wherein the application of the control signal is timed such that a control signal artifact arrives at the ventricles during a ventricular refractory period.

2. The method of claim 1 further comprising receiving information indicative of an atrial arrhythmia prior to the calling for delivery.

3. The method of claim 2, further comprising performing a mode switch in response to detection of the atrial arrhythmia, and calling for delivery in response to detection of the atrial arrhythmia.

4. The method of claim 1 further comprising delivering the control signal via one or more electrodes positioned proximate to the His bundle.

5. The method of claim 1 wherein application of the control signal actively filters the signal of supraventricular origin.

6. The method of claim 1 wherein the control signal acts to low pass filter the signal of supraventricular origin.

7. The method of claim 1 wherein the control signal acts to block the signal of supraventricular origin.

8. An implantable controller comprising:

an input for receiving information related to a signal of supraventricular origin;

control logic to determine a control signal;

a pulse generator to generate the control signal; and

an output to deliver the control signal to thereby actively filter the signal of supraventricular origin in the His bundle wherein the application of the control signal prevents the signal of supraventricular origin from stimulating the ventricles and wherein the application of the control signal is timed such that a control signal artifact arrives at the ventricles during a ventricular refractory period.

9. The implantable controller of claim 8 wherein the input includes an electrode positionable in the right atrium.

10. The implantable controller of claim 8 wherein the output includes an electrode positionable proximate to the His bundle.

11. The implantable controller of claim 8 wherein the control logic determines a frequency of a control signal based at least in part on a frequency of the signal of supraventricular origin.

12. The implantable controller of claim 8 wherein the control signal has a frequency greater than the frequency of the signal of supraventricular origin.

13. The implantable controller of claim 12 wherein the control signal has a frequency that is a multiple of the frequency of the signal of supraventricular origin.

14. The implantable controller of claim 8 wherein the control signal further includes a ventricular stimulation signal.

15. The implantable controller of claim 8 wherein the control signal includes a first frequency for filtering the signal of supraventricular amplitude and a second frequency for stimulating one or both ventricles.

16. The implantable controller of claim 8 further comprising a pacemaker.

17. The implantable controller of claim 8 further comprising an implantable cardiac defibrillator.

18. The implantable controller of claim 8 wherein the input receives information from the His bundle.

19. The implantable controller of claim 18 wherein the input receives the information from a post-delivery His bundle site.

20. The implantable controller of claim 8 further comprising feedback control logic to adjust the control signal.

21. The implantable controller of claim 20 wherein the feedback control logic relies at least in part on information related to a filtered signal.

22. The implantable controller of claim 20 wherein the feedback control logic relies on information related to ventricular activity.

23. The implantable controller of claim 8 wherein the output acts to actively block the signal of supraventricular origin in the His bundle.

24. A method comprising:

delivering a control signal at or near the His bundle to prevent conduction of a supraventricular signal through the His bundle wherein the application of the control signal prevents the signal of supraventricular origin from stimulating the ventricles and wherein the application of the control signal is timed such that a control signal artifact arrives at the ventricles during a ventricular refractory period.

25. The method of claim 24 further comprising receiving information indicative of an atrial arrhythmia prior to delivering the blocking signal.

26. The method of claim 25, further comprising performing a mode switch in response to detection of the atrial arrhythmia, and delivering the blocking signal in response to detection of the atrial arrhythmia.

27. The method of claim 24 further comprising delivering the control signal via one or more electrodes positioned proximate to the His bundle.